Android 错误窗口导致返回按钮停止工作答案

【问题标题】：Android Error Window Causes Back Button to Stop WorkingAndroid 错误窗口导致返回按钮停止工作
【发布时间】：2015-11-26 04:13:28
【问题描述】：

我有一个应用程序应该覆盖通知栏并在触摸时执行操作..

现在，我设法通过创建一个系统覆盖按钮来使其工作：

    WindowManager.LayoutParams params = new WindowManager.LayoutParams(
            WindowManager.LayoutParams.MATCH_PARENT,
            statusBarHeight,
            WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
                    | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
                    | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
            PixelFormat.TRANSLUCENT);
    params.gravity = Gravity.RIGHT | Gravity.TOP;

    WindowManager wm = (WindowManager) getApplicationContext().getSystemService(WINDOW_SERVICE);
    wm.addView(mView, params);

但是当我尝试点击设备后退按钮时它不起作用。

请注意，我无法将 TYPE_SYSTEM_ERROR 更改为 TYPE_SYSTEM_ALERT，因为它必须覆盖通知栏。

我也尝试添加标志 FLAG_NOT_FOCUSABLE.. 在这种情况下，后退按钮有效，但未调用 onTouchEvent。

【问题讨论】：

标签： java android overlay android-windowmanager

【解决方案1】：

我做这个：

mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
        mParams = new WindowManager.LayoutParams(
                WindowManager.LayoutParams.MATCH_PARENT,
                Constant.NOTIFY_HEIGHT,
                WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
                WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
                PixelFormat.TRANSLUCENT);
        mParams.gravity = Gravity.CENTER | Gravity.TOP;

        LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
        mNotifyView = inflater.inflate(R.layout.notification_safety_count_down_layout, null);
        mNotifyTxt = (TextView) mNotifyView.findViewById(R.id.txt_notification_safety_count_down_time);

        mWindowManager.addView(mNotifyView, mParams);

        mNotifyView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent intent = new Intent(SafetyCountDownService.this, DoroAssistanceAppActivity.class);
                intent.putExtra(Constant.CALL_FROM, Constant.CALL_FROM_NOTIFICATION);
                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(intent);

            }
        });

请试试！！！

【讨论】：