如何防止你的Andriod应用程序最小化

public class MyForegroundService extends Service {
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
            .setContentTitle("My App")
            .setContentText("Service is running")
            .setSmallIcon(R.drawable.ic_notification)
            .build();
        startForeground(1, notification);
        // 执行后台任务
        return START_STICKY;
    }

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

<service android:name=".MyForegroundService" />

@Override
protected void onUserLeaveHint() {
    super.onUserLeaveHint();
    // 启动前台服务或显示一个对话框阻止应用最小化
}

AlertDialog dialog = new AlertDialog.Builder(this)
    .setTitle("Important Task")
    .setMessage("Please wait until the task is completed.")
    .setCancelable(false)
    .create();
dialog.show();