如何在手机启动时启动应用程序？

public class BootReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction())) {
            // 启动目标应用程序
            Intent launchIntent = new Intent(context, TargetActivity.class);
            launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(launchIntent);
        }
    }
}

<receiver
    android:name=".BootReceiver"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>

public class BootService extends Service {
    @Override
    public void onCreate() {
        super.onCreate();
        // 启动目标应用程序
        Intent launchIntent = new Intent(this, TargetActivity.class);
        launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(launchIntent);
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

<service
    android:name=".BootService"
    android:enabled="true"
    android:exported="true" />

public class BootReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction())) {
            // 创建定时任务
            AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
            Intent launchIntent = new Intent(context, TargetActivity.class);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, launchIntent, 0);
            long triggerTime = SystemClock.elapsedRealtime() + 5000; // 5秒后触发任务
            alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, triggerTime, pendingIntent);
        }
    }
}

<receiver
    android:name=".BootReceiver"
    android:enabled="true"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>