Beta Sprint Day 1-2: Alpha Issue Fixes Initiated + Mobile Project Setup

Sprint Phase: Beta Day 1-2 / 8

Team Name: 心屿开发团队 (Xinyu Development Team)

Project Name: 心屿 (MindCarrer) - AI-Driven Mental Health Social Support Platform

1. SCRUM

1.1 Team Member Progress

Member	Completed Tasks	Time Spent	Issues Encountered	Next Plan
吴志斌	Multi-user data isolation design & implementation	8h	SQLite concurrency conflicts	Android server adaptation
江贤晟	Android project architecture setup, network module migration	8h	NDK compatibility	Login page migration
杨媛真	Android UI layout design, login page UI	6h	Font display issues	Main page UI design
方利喆	iOS environment setup, project structure preparation	6h	Complex Mac environment	iOS project framework
连泽政	Multi-user testing plan, concurrency testing execution	5h	None	Community feature testing
林泽君	Local cache testing, data isolation verification	5h	None	Android login testing
范禛	Alpha issue consolidation, Beta planning documentation	4h	None	Assist functional testing
杨越	Android icon design, UI color optimization	4h	None	Page UI beautification
陈毅鹏	Sprint article writing, technical documentation	3h	None	Record development progress
吴昱霆	Android push notification research, FCM study	3h	FCM restrictions in China	Push solution design
连森涛	Android material collection, Qt documentation	2h	None	Technical data collection

Total Hours : 54 hours | Average: 4.9h/person

1.2 Code Check-in Records

1. Multi-user Data Isolation Implementation

Committer: 吴志斌

Issue: #Beta-001 Local cache multi-user data isolation

Core Code : localstore.cpp

复制代码

// Create independent database for each user
QString LocalStore::getUserDbPath(const QString& userId) const {
    QString base = QStandardPaths::writableLocation(
        QStandardPaths::AppDataLocation);
    QDir().mkpath(base);
    return base + QString("/user_%1.sqlite").arg(userId);
}

// Switch user database
bool LocalStore::switchUser(const QString& userId) {
    if (m_currentUserId == userId && db.isOpen()) {
        return true;
    }
    
    if (db.isOpen()) {
        db.close();
    }
    
    m_currentUserId = userId;
    QString dbPath = getUserDbPath(userId);
    db = QSqlDatabase::addDatabase("QSQLITE", userId);
    db.setDatabaseName(dbPath);
    
    if (!db.open()) {
        qDebug() << "Failed to open DB for user:" << userId;
        return false;
    }
    
    initTables();
    qDebug() << "Switched to user:" << userId;
    return true;
}

Affected Files:

Client_Code/localstore.h
Client_Code/localstore.cpp
Client_Code/mainwindow.cpp

2. Android Project Architecture Setup

Committer: 江贤晟

Issue: #Beta-002 Android project infrastructure

Project Structure:

复制代码

Client_Code_Android/
├── android/
│   ├── AndroidManifest.xml
│   ├── build.gradle
│   └── res/
├── *.h, *.cpp, *.ui (Migrated from Windows version)
├── resources.qrc
└── MindCarrer_Android.pro

Key Configuration : MindCarrer_Android.pro

复制代码

QT += core gui widgets network sql concurrent

android {
    QT += androidextras
    ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android
    ANDROID_MIN_SDK_VERSION = 26
    ANDROID_TARGET_SDK_VERSION = 33
    
    ANDROID_PERMISSIONS += \
        android.permission.INTERNET \
        android.permission.ACCESS_NETWORK_STATE
}

3. Network Communication Module Migration

Committer: 吴志斌

Issue: #Beta-003 Android network module migration

Android Network Initialization:

复制代码

#ifdef Q_OS_ANDROID
void FrontClient::initAndroidNetwork() {
    QtAndroid::requestPermissionsSync(
        QStringList() << "android.permission.INTERNET"
    );
    
    mainSocket.setSocketOption(
        QAbstractSocket::LowDelayOption, 1);
    mainSocket.setSocketOption(
        QAbstractSocket::KeepAliveOption, 1);
}
#endif

1.3 Testing Evidence

Multi-user Data Isolation Testing

Testers: 连泽政, 林泽君

Test Scenarios:

Scenario	Test Cases	Passed	Failed	Pass Rate
Concurrent Login	5	5	0	100%
Chat Record Isolation	10	10	0	100%
Database File Verification	8	8		100%
User Switching	7	7	0	100%
Total	30	30	0	100%

复制代码

Database File Verification:
C:\Users\用户名\AppData\Local\MindCarrer\
├── user_13800000001.sqlite  (128 KB)
├── user_13800000002.sqlite  (96 KB)
└── config.ini

Multi-user Concurrency Test:
✅ Client 1: User A's 10 chat records
✅ Client 2: User B's 10 chat records
✅ Data completely isolated, no crossover

Android Project Compilation Test

Test Device: Xiaomi Pad 7

Compilation Results:

Step	Status	Time	Notes
Clean Project	✅	5s	Remove old builds
Configure Project	✅	12s	qmake configuration
Compile Source	✅	3m45s	120 source files
Package APK	✅	1m20s	APK: 28.5MB

Runtime Tests:

Test Item	Result	Notes
App Launch	✅	2.8 seconds
Login Page	✅	UI normal
Network Connection	✅	Connection successful
Login Function	✅	Login successful

1.4 Stand-up Meeting Photos

2. PM Report

2.1 Project Progress

Sprint Period: January 1-8, 2026 (8 days)

Current Progress: Day 2 / 8

Completion Rate: 25%

Task Statistics

Category	Planned	Completed	In Progress	Not Started	Completion Rate
Alpha Issue Fixes	4	2	0	2	50%
Mobile Development	6	1	1	4	17%
New Features	3	0	0	3	0%
Performance Optimization	2	0	0	2	0%
Testing & Documentation	5	1	1	3	20%
Total	20	4	2	14	20%

Completed Tasks

✅ Local cache multi-user isolation (吴志斌, 8h)
✅ Android project architecture setup (江贤晟, 8h)
✅ Network communication module migration (江贤晟, 6h)
✅ Multi-user concurrency testing (连泽政/林泽君, 10h)

Tasks in Progress

🔄 Android login page development (杨媛真, 60%)
🔄 iOS project environment configuration (方利喆, 40%)

Hours Statistics

Date	Planned	Actual	Difference	Cumulative
Day 1	44h	44h	0h	44h
Day 2	44h	44h	0h	88h
Total	88h	88h	0h	88h

Remaining Hours: 264 hours

2.2 Burn-down Chart

复制代码

Remaining Hours (h)
352 |●
    |  ●
300 |    ●
    |      ●
250 |        ●
    |          ●
200 |            ●
    |              ●
150 |                ●
    |                  ●
100 |                    ●
    |                      ●
 50 |                        ●
    |                          ●
  0 |____________________________●
    Day1  Day2  Day3  Day4  Day5  Day6  Day7  Day8

● Ideal Burn-down Line
■ Actual Burn-down Line

Current: Day 2
Ideal Remaining: 264h
Actual Remaining: 264h
Deviation: 0h ✅

Analysis:

✅ Progress normal, consistent with ideal timeline
✅ Hours control good, average 4.9h/person/day
✅ Task allocation reasonable, load balanced

2.3 Task Volume Changes

New Tasks

New Task	Discovery Time	Priority	Hours	Owner
Android font display optimization	Day 1	Medium	4h	杨媛真
Database concurrency lock optimization	Day 1	High	6h	吴志斌
iOS certificate configuration	Day 2	High	8h	方利喆
Android permission management	Day 2	Medium	4h	江贤晟

Added Hours: 22 hours

Adjusted Total Hours: 374 hours

2.4 Running Screenshots and Demos

Multi-user Data Isolation Demo

Scenario: Two users logged in simultaneously, data completely isolated

Android Application Running Demo

Device: Xiaomi Pad 7

3. Technical Highlights

3.1 Multi-user Data Isolation Solution

Design Approach

Problem: In Alpha stage, all users shared one database, causing data chaos

Solution: Each user uses independent SQLite database file

Architecture Design

复制代码

User Login
    ↓
LocalStore::switchUser(userId)
    ↓
Close current database connection
    ↓
Open user-specific database
    ↓
user_<userId>.sqlite
    ↓
Initialize table structure
    ↓
Data completely isolated

Core Implementation

复制代码

// Database path generation
QString getUserDbPath(const QString& userId) const {
    QString base = QStandardPaths::writableLocation(
        QStandardPaths::AppDataLocation);
    return base + QString("/user_%1.sqlite").arg(userId);
}

// User switching
bool switchUser(const QString& userId) {
    // 1. Close current connection
    if (db.isOpen()) db.close();
    
    // 2. Open new user database
    db.setDatabaseName(getUserDbPath(userId));
    if (!db.open()) return false;
    
    // 3. Initialize table structure
    initTables();
    return true;
}

Advantages

✅ Data Isolation: Each user's data completely independent
✅ Concurrency Safety: No conflicts with multiple simultaneous logins
✅ Easy Management: Database files clearly visible
✅ Performance Optimization: Avoids large table queries, improves speed

3.2 Android Project Architecture Design

Cross-platform Strategy

Goal: Maximize code reuse, minimize platform differences

Approach:

Core business logic 100% reused
UI layout files 100% reused
Platform-specific code uses conditional compilation

Project Structure

复制代码

Client_Code_Android/
├── Core Code (Reused)
│   ├── frontclient.cpp      # Network communication
│   ├── localstore.cpp       # Local storage
│   ├── mainwindow.cpp       # Main window
│   └── ...
├── UI Files (Reused)
│   ├── authwindow.ui
│   ├── mainwindow.ui
│   └── ...
├── Android Specific
│   ├── android/
│   │   ├── AndroidManifest.xml
│   │   ├── build.gradle
│   │   └── res/
│   └── MindCarrer_Android.pro

Conditional Compilation Example

复制代码

// Platform-specific initialization
#ifdef Q_OS_ANDROID
    initAndroidNetwork();
    requestAndroidPermissions();
#elif defined(Q_OS_IOS)
    initIOSNetwork();
    requestIOSPermissions();
#else
    // Windows/Linux/macOS
    initDesktopNetwork();
#endif

Advantages

✅ Code Reuse Rate: Over 85%
✅ Low Maintenance Cost: One modification, multiple platforms effective
✅ High Development Efficiency: Quick migration to new platforms
✅ Good Consistency: Unified user experience

4. Problems and Solutions

Problem 1: SQLite Concurrent Access Conflicts

Symptom: Occasional errors when multiple users operated database simultaneously

Cause: SQLite doesn't support high-concurrency writes by default

Solution:

复制代码

// Enable WAL mode
db.exec("PRAGMA journal_mode=WAL;");
db.exec("PRAGMA synchronous=NORMAL;");

// Set timeout
sqlite3_busy_timeout(db_, 5000);

Effect: ✅ Concurrency conflicts completely resolved

Problem 2: NDK Version Compatibility

Symptom: Android project compilation failed,提示NDK version mismatch

Cause: Qt 6.5.3 requires NDK 25.x, but system had NDK 21.x installed

Solution:

复制代码

# Download NDK 25.1.8937393
sdkmanager "ndk;25.1.8937393"

# Configure NDK path in Qt Creator
Tools → Options → Devices → Android
NDK Location: E:/AndrioSDK/SDKQT/ndk/25.1.8937393

Effect: ✅ Compilation passed successfully

Problem 3: Android Font Display Abnormalities

Symptom: Some Chinese characters displayed as squares

Cause: Android system fonts didn't match Qt default fonts

Solution:

复制代码

#ifdef Q_OS_ANDROID
    QFont font("Roboto");
    font.setPointSize(14);
    QApplication::setFont(font);
#endif

Effect: ✅ Font display normal

5. Days 1-2 Summary

Completion Status

Completed:

✅ Multi-user data isolation design & implementation
✅ Android project infrastructure setup
✅ Network communication module migration
✅ Multi-user concurrency testing (100% pass)

In Progress:

🔄 Android login page development (60%)

Completion Rate: 20% (4/20 tasks)

Team Collaboration

Strengths:

✅ Task allocation reasonable, everyone has clear goals
✅ Stand-up communication timely, problems resolved quickly
✅ Code review strict, quality assured

Improvements:

⚠️ Some members unfamiliar with Android development, need enhanced learning

Technical Gains

Multi-user Data Isolation: Learned SQLite multi-database management
Cross-platform Development: Mastered Qt for Android development workflow
Conditional Compilation: Understood cross-platform code organization
Concurrency Testing: Improved test design capabilities

6. Next Plan (Days 3-4)

Main Tasks

Community Features Improvement
- Fix like functionality
- Fix comment functionality (async loading)
- Optimize community page performance
Window Size Unification
- Adjust login/registration pages to 1200x800
- Maintain consistency with main page size
- Optimize window switching animations
Windows Message Notifications
- Implement hourly check mechanism
- Add cute notification message library
- Integrate Windows Toast notifications
Android Feature Completion
- Complete login/registration pages
- Develop main page UI
- Implement bottom navigation bar

Expected Goals

Complete 50% of Alpha legacy issues
Android development progress reach 40%
Cumulative completion rate achieve 51%

Document Version: v1.0

Author: 陈毅鹏

Reviewer: 吴志斌