【安卓】Android Studio简易计算器（实现加减乘除，整数小数运算，正数负数运算）

波士顿的o泡果奶2024-07-28 14:43

目录

前言

运算效果

一、创建一个新的项目

二、编写xml文件（计算器显示页面）

三、实现Java运算逻辑

​编辑

完整代码

xml文件代码：

Java文件代码：

注：

前言

随着移动互联网的普及，手机应用程序已经成为人们生活中不可或缺的一部分。计算器是一类被广泛使用的应用程序之一，因此学习如何开发一款简易的计算器应用程序是学习Android Studio开发的一个很好的开始。

Android Studio是一款Google开发的用于创建安卓应用的集成开发环境(IDE), 它可以帮助开发者快速设计、开发和测试应用程序。接下来我将为大家介绍如何使用Android Studio创建一个简易的计算器应用程序。

运算效果

一、创建一个新的项目

完成上面步骤以后，点击Finish,等待加载好项目就可以继续下面的步骤了

二、编写xml文件（计算器显示页面）

打开activity_main.xml文件: res --> layout --> activity_main.xml

可以模仿主流计算器或者自己手机上面的计算器的版式来设计你的计算页面样式。

xml文件代码附到最后啦，根据自己需要自行截取复制。

然后页面显示的样子就是下面这样的：

三、实现Java运算逻辑

写好基本的显示页面后，咱就得来完成逻辑运算和点击事件了

点开MainActivity.java文件：

Java逻辑要完成的主要是如何设计点击事件以及如何实现加减乘除的逻辑

完整代码

xml文件代码：

XML 复制代码 
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:circularflow_angles="20"
    tools:context=".MainActivity">
<!--csdn 波士顿o泡果奶 版权所有 -->
    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/constraintLayout"
        android:layout_width="match_parent"
        android:layout_height="80dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <ImageView
            android:id="@+id/imageView"
            android:layout_width="29dp"
            android:layout_height="25dp"
            android:layout_marginTop="18dp"
            android:layout_marginEnd="10dp"
            app:layout_constraintEnd_toStartOf="@+id/imageView2"
            app:layout_constraintTop_toTopOf="parent"
            app:srcCompat="@drawable/img" />

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="32dp"
            android:layout_height="29dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:srcCompat="@drawable/img_1" />

        <TextView
            android:id="@+id/textView"
            android:layout_width="65dp"
            android:layout_height="41dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="7dp"
            android:text="计算"
            android:textColor="#010101"
            android:textSize="31dp"
            android:textStyle="bold"
            app:autoSizeTextType="none"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="9dp"
            android:layout_marginTop="14dp"
            android:text="汇率"
            android:textColor="#B2B2B2"
            android:textSize="25dp"
            android:textStyle="bold"
            app:layout_constraintStart_toEndOf="@+id/textView"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="57dp"
            android:layout_height="3dp"
            android:layout_marginStart="19dp"
            android:background="#FF0101"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/textView">

        </androidx.constraintlayout.widget.ConstraintLayout>
    </androidx.constraintlayout.widget.ConstraintLayout>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/constraintLayout2"
        android:layout_width="410dp"
        android:layout_height="178dp"
        android:background="#FFFFFF"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/constraintLayout">

        <EditText
            android:id="@+id/editTextText2"
            android:layout_width="409dp"
            android:layout_height="83dp"
            android:layout_marginStart="2dp"
            android:layout_marginTop="76dp"
            android:ems="10"
            android:inputType="text"
            android:textSize="50sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

    </androidx.constraintlayout.widget.ConstraintLayout>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="466dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/constraintLayout2">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/constraintLayout51"
            android:layout_width="409dp"
            android:layout_height="89.8dp"
            android:background="#FFFFFF"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView2"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/AC"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView12"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="18dp"
                        android:layout_marginTop="16dp"
                        android:text="AC"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView3"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView2"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/dl"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <ImageView
                        android:id="@+id/imageView3"
                        android:layout_width="48dp"
                        android:layout_height="30dp"
                        android:layout_marginStart="14dp"
                        android:layout_marginTop="28dp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent"
                        app:srcCompat="@drawable/img_4" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView3"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView4"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView14"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="16dp"
                        android:layout_marginTop="16dp"
                        android:text="+/-"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView4"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F6E9E8"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView3"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/D"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView15"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="10dp"
                        android:text="÷ "
                        android:textSize="42sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>
        </androidx.constraintlayout.widget.ConstraintLayout>

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/constraintLayout54"
            android:layout_width="409dp"
            android:layout_height="89.8dp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/constraintLayout51">

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView2"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/seven"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView16"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="17dp"
                        android:text="7"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView3"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView2"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/eight"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView17"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="17dp"
                        android:text="8"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView3"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView4"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/nine"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView18"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="17dp"
                        android:text="9"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView4"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F6E9E8"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView3"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/X"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView19"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="31dp"
                        android:layout_marginTop="14dp"
                        android:text="x"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
        </androidx.constraintlayout.widget.ConstraintLayout>

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/constraintLayout52"
            android:layout_width="409dp"
            android:layout_height="89.8dp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/constraintLayout54">

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView2"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/four"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView20"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="16dp"
                        android:text="4"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView3"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView2"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/five"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView21"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="16dp"
                        android:text="5"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView3"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView4"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/six"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView22"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="16dp"
                        android:text="6"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView4"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F6E9E8"
                app:cardBackgroundColor="#F6E9E8"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView3"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/sub"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView23"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="35dp"
                        android:layout_marginTop="16dp"
                        android:text="-"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
        </androidx.constraintlayout.widget.ConstraintLayout>

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/constraintLayout53"
            android:layout_width="409dp"
            android:layout_height="89.8dp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/constraintLayout52">

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView2"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/one"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView24"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="16dp"
                        android:text="1"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView3"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView2"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/two"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView25"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="16dp"
                        android:text="2"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView3"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView4"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/three"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView26"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="16dp"
                        android:text="3"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView4"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F6E9E8"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView3"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/add"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView27"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="16dp"
                        android:text="+"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
        </androidx.constraintlayout.widget.ConstraintLayout>

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="409dp"
            android:layout_height="89.8dp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/constraintLayout53">

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView2"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/yu"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView28"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="27dp"
                        android:layout_marginTop="17dp"
                        android:text="%"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView3"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView2"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/zero"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView29"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="30dp"
                        android:layout_marginTop="17dp"
                        android:text="0"
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView3"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F2F1F1"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toStartOf="@+id/cardView4"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/point"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView30"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="36dp"
                        android:layout_marginTop="17dp"
                        android:text="."
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <androidx.cardview.widget.CardView
                android:id="@+id/cardView4"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:layout_marginTop="5dp"
                android:background="#F2F1F1"
                app:cardBackgroundColor="#F85955"
                app:cardCornerRadius="45dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toEndOf="@+id/cardView3"
                app:layout_constraintTop_toTopOf="parent">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:id="@+id/equal"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">

                    <TextView
                        android:id="@+id/textView32"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginStart="31dp"
                        android:layout_marginTop="16dp"
                        android:text="="
                        android:textSize="35sp"
                        app:layout_constraintStart_toStartOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                </androidx.constraintlayout.widget.ConstraintLayout>
            </androidx.cardview.widget.CardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
        </androidx.constraintlayout.widget.ConstraintLayout>
    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

Java文件代码：

java 复制代码 
import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;

import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private  StringBuilder show=new StringBuilder();
    private  ArrayList calculate_equation;
    private  int signal=0;//为0 时表示刚输入状态；为1时表示当前在输出结果上继续输入
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        show=new StringBuilder();
        calculate_equation=new ArrayList<>();
//李木
        ConstraintLayout AC = findViewById(R.id.AC);
        ConstraintLayout Divide = findViewById(R.id.D);
        ConstraintLayout Multiplication = findViewById(R.id.X);
        ConstraintLayout Sub = findViewById(R.id.sub);
        ConstraintLayout Add = findViewById(R.id.add);
        ConstraintLayout Equal = findViewById(R.id.equal);
        ConstraintLayout Point = findViewById(R.id.point);
        ConstraintLayout one = findViewById(R.id.one);
        ConstraintLayout two = findViewById(R.id.two);
        ConstraintLayout three = findViewById(R.id.three);
        ConstraintLayout four = findViewById(R.id.four);
        ConstraintLayout five = findViewById(R.id.five);
        ConstraintLayout six = findViewById(R.id.six);
        ConstraintLayout seven = findViewById(R.id.seven);
        ConstraintLayout eight = findViewById(R.id.eight);
        ConstraintLayout nine = findViewById(R.id.nine);
        ConstraintLayout zero = findViewById(R.id.zero);
        EditText result=findViewById(R.id.editTextText2);

        AC.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                show.delete(0,show.length());
                show.append("");
                result.setText(show);
                result.setSelection(result.getText().length());
                signal=0;
            }
        });
        zero.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v){
                if(!(show.toString().equals("0"))){
                    if(signal==0){
                        show.append("0");
                        result.setText(show);
                        result.setSelection(result.getText().length());
                    }else{
                        show.delete(0,show.length());
                        show.append("0");
                        result.setText(show);
                        result.setSelection(result.getText().length());
                        signal=0;
                    }
                }
            }
        });
        one.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("1");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("1");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        two.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("2");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("2");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        three.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("3");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("3");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        four.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("4");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("4");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        five.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("5");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("5");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        six.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("6");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("6");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        seven.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("7");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("7");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        eight.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("8");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("8");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });
        nine.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    show.append("9");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }else{
                    show.delete(0,show.length());
                    show.append("9");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });


        Point.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(signal==0){
                    String a=show.toString();
                    if(a.equals("")){
                        show.append(".");
                        result.setText(show);
                        result.setSelection(result.getText().length());
                    }else{
                        int i;
                        char t='0';
                        for(i=a.length();i>0;i--){
                            t=a.charAt(i-1);
                            if(t=='.'||t=='+'||t=='-'||t=='*'||t=='/')
                                break;
                        }
                        if(i==0){
                            show.append(".");
                            result.setText(show);
                            result.setSelection(result.getText().length());
                        }else if(t=='+'||t=='-'||t=='*'||t=='/'){
                            show.append(".");
                            result.setText(show);
                            result.setSelection(result.getText().length());
                        }
                    }
                }else{
                    show.delete(0,show.length());
                    show.append(".");
                    result.setText(".");
                    result.setSelection(result.getText().length());
                    signal=0;
                }
            }
        });

        Equal.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //判断用户是否输入了内容
                if(!show.toString().equals("")){
                    signal=1;
                    char temp=show.charAt(show.length()-1);
                    if(show.charAt(0)=='-')
                        show.insert(0,"0");
                    if(temp=='+'||temp=='-')
                        show.append("0");
                    if(temp=='*'||temp=='/')
                        show.append("1");
                    StringBuilder temp1=new StringBuilder();
                    for(int i=0;i<show.length();i++){
                        if(show.charAt(i)>='0'&&show.charAt(i)<='9'||show.charAt(i)=='.'){
                            temp1.append(String.valueOf(show.charAt(i)));
                        }else if(show.charAt(i)=='N'){
                            calculate_equation.add("NaN");
                            i=i+2;
                        }else if(show.charAt(i)=='∞'){
                            calculate_equation.add("∞");
                        }
                        else
                        {
                            if(temp1.length()!=0){
                                calculate_equation.add(temp1.toString());
                                temp1.delete(0,temp1.length());
                            }
                            calculate_equation.add(String.valueOf(show.charAt(i)));
                        }
                    }
                    if(temp1.length()!=0){
                        calculate_equation.add(temp1.toString());
                    }
                    calculate_equation.add("#");
                    String temp8=calculate(calculate_equation);
                    result.setText(temp8);
                    result.setSelection(result.getText().length());
                    show.delete(0,show.length());
                    calculate_equation.clear();
                    show.append(temp8);
                }
            }
        });
        Add.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //判断用户是否输入了内容
                if(!(show.toString().equals(""))) {
                    signal=0;
                    char temp=show.charAt(show.length()-1);
                    if(temp=='+'||temp=='-'||temp=='*'||temp=='/')
                    {
                        show.deleteCharAt(show.length()-1);
                        show.append("+");
                    }
                    else
                        show.append("+");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }
            }
        });
        Sub.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //判断用户是否输入了内容
                if(!(show.toString().equals(""))) {
                    signal=0;
                    char temp=show.charAt(show.length()-1);
                    if(temp=='+'||temp=='-'||temp=='*'||temp=='/')
                    {
                        show.deleteCharAt(show.length()-1);
                        show.append("-");
                    }
                    else
                        show.append("-");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }
            }
        });

        Multiplication.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //判断用户是否输入了内容
                if(!(show.toString().equals(""))) {
                    signal=0;
                    char temp=show.charAt(show.length()-1);
                    if(temp=='+'||temp=='-'||temp=='*'||temp=='/')
                    {
                        show.deleteCharAt(show.length()-1);
                        show.append("*");
                    }
                    else
                        show.append("*");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }
            }
        });

        Divide.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //判断用户是否输入了内容
                if(!(show.toString().equals(""))) {
                    signal=0;
                    char temp=show.charAt(show.length()-1);
                    if(temp=='+'||temp=='-'||temp=='*'||temp=='/')
                    {
                        show.deleteCharAt(show.length()-1);
                        show.append("/");
                    }
                    else
                        show.append("/");
                    result.setText(show);
                    result.setSelection(result.getText().length());
                }
            }
        });
    }
    protected boolean operatorPriorityCompare(char operator1,char operator2)
    {
        int o1=0;
        int o2=0;
        switch (operator1){
            case '+':{o1=0;break;}
            case '-':{o1=0;break;}
            case '*':{o1=1;break;}
            case '/':{o1=1;break;}
        }
        switch (operator2){
            case '+':{o2=0;break;}
            case '-':{o2=0;break;}
            case '*':{o2=1;break;}
            case '/':{o2=1;break;}
        }
        if(o1<=o2)
        {
            return false;
        }
        else
            return true;
    }
    //相加
    public static Double Add(Double d1,Double d2) {
        if(d1==Double.NEGATIVE_INFINITY||d1==Double.POSITIVE_INFINITY||d2==Double.NEGATIVE_INFINITY||d2==Double.POSITIVE_INFINITY){
            return d1+d2;
        }
        if(String.valueOf(d1).equals("NaN")||String.valueOf(d1).equals("NaN")){
            return d1+d2;
        }
        BigDecimal b1 = new BigDecimal(Double.toString(d1));
        BigDecimal b2 = new BigDecimal(Double.toString(d2));
        return b1.add(b2).doubleValue();
    }
    //相减
    public static Double Sub(Double d1,Double d2){
        if(d1==Double.NEGATIVE_INFINITY||d1==Double.POSITIVE_INFINITY||d2==Double.NEGATIVE_INFINITY||d2==Double.POSITIVE_INFINITY){
            return d1-d2;
        }
        if(String.valueOf(d1).equals("NaN")||String.valueOf(d1).equals("NaN")){
            return d1-d2;
        }
        if(String.valueOf(d1).equals("NaN")||String.valueOf(d1).equals("NaN")){
            return d1*d2;
        }
        BigDecimal b1=new BigDecimal(Double.toString(d1));
        BigDecimal b2=new BigDecimal(Double.toString(d2));
        return b1.subtract(b2).doubleValue();
    }
    //相乘
    public static Double Mul(Double d1,Double d2){
        if(d1==Double.NEGATIVE_INFINITY||d1==Double.POSITIVE_INFINITY||d2==Double.NEGATIVE_INFINITY||d2==Double.POSITIVE_INFINITY){
            return d1*d2;
        }
        if(String.valueOf(d1).equals("NaN")||String.valueOf(d1).equals("NaN")){
            return d1*d2;
        }
        BigDecimal b1=new BigDecimal(Double.toString(d1));
        BigDecimal b2=new BigDecimal(Double.toString(d2));
        return b1.multiply(b2).setScale(8).doubleValue();
    }
    //相除
    public static Double Div(Double d1,Double d2){
        if(d1==Double.NEGATIVE_INFINITY||d1==Double.POSITIVE_INFINITY||d2==Double.NEGATIVE_INFINITY||d2==Double.POSITIVE_INFINITY){
            return d1/d2;
        }
        if(String.valueOf(d1).equals("NaN")||String.valueOf(d1).equals("NaN")){
            return d1/d2;
        }
        if(d1==0.0&&d2==0.0){
            return Double.NaN;
        }
        if(d2==0.0){
            return d1/d2;
        }
        BigDecimal b1=new BigDecimal(Double.toString(d1));
        BigDecimal b2=new BigDecimal(Double.toString(d2));
        return b1.divide(b2,8,BigDecimal.ROUND_HALF_UP).doubleValue();
    }
    protected String calculate(ArrayList equation){
        Double temp2;
        Double temp3;
        Double result;
        List operator=new ArrayList();
        List<Double> operand=new ArrayList();
        for(int i=0;i<equation.size();i++)
        {
            String temp4=(String) equation.get(i);
            if(temp4.equals("+")||temp4.equals("-")||temp4.equals("*")||temp4.equals("/"))
            {
                if(operator.size()>0)
                {
                    String temp5=operator.get(operator.size()-1).toString();
                    while(!(operatorPriorityCompare(temp4.charAt(0),temp5.charAt(0)))&&operator.size()>0)
                    {
                        operator.remove(operator.size()-1);
                        temp3=operand.get(operand.size()-1);
                        operand.remove(operand.size()-1);
                        temp2=operand.get(operand.size()-1);
                        operand.remove(operand.size()-1);
                        switch (temp5.charAt(0)){
                            case '+':{result=Add(temp2,temp3);operand.add(result);break;}
                            case '-':{result=Sub(temp2,temp3);operand.add(result);break;}
                            case '*':{result=Mul(temp2,temp3);operand.add(result);break;}
                            case '/':{result=Div(temp2,temp3);operand.add(result);break;}
                        }
                        if(operator.size()>0)
                        {
                            temp5=operator.get(operator.size()-1).toString();
                        }
                        else
                            break;
                    }
                    operator.add(temp4);
                }
                else
                    operator.add(temp4);
            }
            else if(temp4.equals("#"))
            {
                while(operator.size()>0)
                {
                    String temp6=(String)operator.get(operator.size()-1);
                    operator.remove(operator.size()-1);
                    temp3=operand.get(operand.size()-1);
                    operand.remove(operand.size()-1);
                    temp2=operand.get(operand.size()-1);
                    operand.remove(operand.size()-1);
                    switch (temp6.charAt(0)){
                        case '+':{result=Add(temp2,temp3);operand.add(result);break;}
                        case '-':{result=Sub(temp2,temp3);operand.add(result);break;}
                        case '*':{result=Mul(temp2,temp3);operand.add(result);break;}
                        case '/':{result=Div(temp2,temp3);operand.add(result);break;}
                    }
                }
            }
            else
            {
                if(temp4.equals("NaN")){
                    operand.add(Double.NaN);
                }else if(temp4.equals("∞")){
                    operand.add(Double.POSITIVE_INFINITY);
                }else{
                    operand.add(Double.parseDouble(temp4));
                }
            }
        }
        if(operand.get(0)==Double.NEGATIVE_INFINITY) return "-∞";
        if(operand.get(0)==Double.POSITIVE_INFINITY) return "∞";
        return operand.get(0).toString();
    }
}

/*
* csdn 波士顿o泡果奶 版权所有 */

注：

xml文件中有一些图片，若完全粘贴xml代码，可将图片换成自己的图片，图片资源放到哪里，这里我就不多说了，可以参考下面的那些博客安卓studio图片资源放到哪里- CSDN搜索https://so.csdn.net/so/search?q=%E5%AE%89%E5%8D%93studio%E5%9B%BE%E7%89%87%E8%B5%84%E6%BA%90%E6%94%BE%E5%88%B0%E5%93%AA%E9%87%8C&t=&u=&urw=

相关推荐
miao_zz1 小时前
基于react native的锚点
android·react native·react.js
安卓美女1 小时前
Android自定义View性能优化
android·性能优化
数云界1 小时前
使用 VSCode 在 Python 中创建项目环境
ide·vscode·python
m0_608570981 小时前
vscode对python进行多卡调试
ide·vscode·python
冲，干，闯1 小时前
VScode相关问题与解决
c++·ide·vscode
Dingdangr2 小时前
Android中的四大组件
android
mg6683 小时前
安卓玩机工具-----无需root权限 卸载 禁用 删除当前机型app应用 ADB玩机工具
android
安卓机器3 小时前
Android架构组件：MVVM模式的实战应用与数据绑定技巧
android·架构
SuperHeroWu73 小时前
【HarmonyOS】Beta最新对外版本IDE下载和环境配置
ide·华为·harmonyos
码龄3年 审核中4 小时前
MySQL record 05 part
android·数据库·mysql
热门推荐
01RAG 实践- Ollama+RagFlow 部署本地知识库02组基轨迹建模 GBTM的介绍与实现（Stata 或 R）032024年高教社杯数学建模国赛C题超详细解题思路分析04yolov8实战第五天——yolov8+ffmpg实时视频流检测并进行实时推流——（推流，保姆教学）05Coze扣子平台完整体验和实践（附国内和国际版对比）06【2024数模国赛赛题思路公开】国赛B题思路丨附可运行代码丨无偿自提07【经验分享】Ubuntu22.04安装微信(linux官方版)08苍穹外卖面试总结09【2024高教社杯全国大学生数学建模竞赛】B题 生产过程中的决策问题——解题思路 代码 论文10Ubuntu24.04安装中文输入法