Android笔记--应用安装

这一节了解一下普通应用安装app的方式,主要是唤起系统来安装,直接上代码:

申请权限

XML 复制代码
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>

    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
    <uses-permission android:name="com.example.permission.SOME_PERMISSION" />
    <uses-permission android:name="android.permission.INSTALL_PACKAGES"
        tools:ignore="ProtectedPermissions" />
    <uses-permission
        android:name="android.permission.WRITE_SETTINGS"
        tools:ignore="ProtectedPermissions" />
    <uses-permission
        android:name="android.permission.ACCESS_SUPERUSER" />
    <uses-permission
        android:name=".PERMISSION" />

    <uses-permission
        android:name="android.permission.GET_PACKAGE_SIZE" />
    <uses-permission
        android:name="android.permission.MANAGE_DOCUMENTS"
        tools:ignore="ProtectedPermissions" />

 <application>
...
        <provider
            android:name="androidx.core.content.FileProvider"
            android:authorities="com.dc.cplustest.fileProvider"
            android:exported="false"
            android:permission="com.example.permission.SOME_PERMISSION"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/filepaths" />
        </provider>
...
</application>

res/xml/filepaths.xml

Activity中:

java 复制代码
private static final String[] PERMISSIONS = new String[]{
        android.Manifest.permission.ACCESS_COARSE_LOCATION,
        android.Manifest.permission.READ_EXTERNAL_STORAGE,
        android.Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.MANAGE_EXTERNAL_STORAGE,
        android.Manifest.permission.INSTALL_PACKAGES,
        Manifest.permission.WRITE_SETTINGS,
        Manifest.permission.REQUEST_INSTALL_PACKAGES
};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
        checkInstallPermission();
        initView();
    }


 public String apk = Environment.getExternalStorageDirectory() + File.separator + "Test" + File.separator + "APK" + File.separator+"fenshen.apk";
    private void initView() {

        if (!checkPermissions(PERMISSIONS)) {
            ActivityCompat.requestPermissions(this, PERMISSIONS, 1000);
        }
        findViewById(R.id.btn_test_so).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try {
                    install();
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
        });
    }

    public void checkInstallPermission() {
        boolean haveInstallPermission;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            haveInstallPermission = getPackageManager().canRequestPackageInstalls();
            Log.d("Test","Test haveInstallPermission:"+haveInstallPermission);
            if (!haveInstallPermission) {//没有权限让调到设置页面进行开启权限;
                Uri packageURI = Uri.parse("package:" + getPackageName());
                Intent intent = new Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES, packageURI);
                startActivityForResult(intent, 10086);
            } 
        } 
    }

    public void install() {
        File apkFile = new File(apk);
        Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
        intent.setAction(Intent.ACTION_VIEW);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        //注意第二个参数,要保持和manifest中android:authorities的值相同
        Uri uri = FileProvider.getUriForFile(SecondActivity.this,
                SecondActivity.this.getPackageName() + ".fileProvider", apkFile);
        intent.setDataAndType(uri, "application/vnd.android.package-archive");
        intent.setData(uri);
        startActivity(intent);
    }

 private boolean checkPermissions(String[] neededPermissions) {
        if (neededPermissions == null || neededPermissions.length == 0) {
            return true;
        }
        boolean allGranted = true;
        for (String neededPermission : neededPermissions) {
          Log.d("Test","权限"+neededPermission+"是否已给: "+(ContextCompat.checkSelfPermission(this, neededPermission) == PackageManager.PERMISSION_GRANTED));
            allGranted &= ContextCompat.checkSelfPermission(this, neededPermission) == PackageManager.PERMISSION_GRANTED;
        }
        return allGranted;
    }
相关推荐
IAM四十二9 天前
Google 端侧 AI 框架 LiteRT 初探
android·深度学习·tensorflow
懒惰的bit9 天前
STM32F103C8T6 学习笔记摘要(四)
笔记·stm32·学习
CYRUS_STUDIO9 天前
手把手教你用 Chrome 断点调试 Frida 脚本,JS 调试不再是黑盒
android·app·逆向
zkyqss9 天前
OVS Faucet练习(下)
linux·笔记·openstack
浦东新村轱天乐9 天前
【麻省理工】《how to speaking》笔记
笔记
奔跑的蜗牛AZ9 天前
TiDB 字符串行转列与 JSON 数据查询优化知识笔记
笔记·json·tidb
Just丶Single9 天前
安卓NDK初识
android
cwtlw9 天前
Excel学习03
笔记·学习·其他·excel
杭州杭州杭州9 天前
计算机网络笔记
笔记·计算机网络
编程乐学9 天前
网络资源模板--基于Android Studio 实现的咖啡点餐App
android·android studio·大作业·奶茶点餐·安卓移动开发·咖啡点餐