在状态栏上放置一个按钮

Question

我想在状态栏上的显示切口后面放置一个不可见的按钮。我不想像其他代码一样向用户显示通知，而是在状态栏上显示一个不可见的按钮。我添加了代码来检测显示切口的大小和位置，但我无法在状态栏上放置按钮状态栏位于显示切口的正后方。我想让用户点击相机凹口，并且相机凹口后面应该有一个看不见的按钮。

Answer 1

在AndroidManifest.xml中添加

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

必须在运行时请求此权限：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(this)) {
    Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                               Uri.parse("package:" + getPackageName()));
    startActivityForResult(intent, PERMISSION_CODE);
}

检测显示切口

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
    WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
    layoutParams.layoutInDisplayCutoutMode = WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES;

    // Apply layoutParams to your window or view
}

创建和定位隐形按钮

WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
    WindowManager.LayoutParams.WRAP_CONTENT,
    WindowManager.LayoutParams.WRAP_CONTENT,
    WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
    PixelFormat.TRANSLUCENT);

// Assuming you have the cutout position and size (cutoutRect)
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = cutoutRect.left;  // Position X
params.y = cutoutRect.top;   // Position Y
params.width = cutoutRect.width();  // Width of the cutout
params.height = cutoutRect.height(); // Height of the cutout

Button invisibleButton = new Button(this);
invisibleButton.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
invisibleButton.setBackgroundColor(Color.TRANSPARENT); // Making the button invisible
invisibleButton.setOnClickListener(v -> {
    Toast.makeText(this, "Notch tapped!", Toast.LENGTH_SHORT).show();
});

windowManager.addView(invisibleButton, params);