问题描述
我有，应该定期检查可见状态栏，在一些顶级的活动（或没有）在全屏模式下的服务。这可能吗？
I have a service that should check periodically visibility of status bar, when some top activity is (or not) in fullscreen mode.Is it possible?
推荐答案
最后，我已经发现了如何检查，如果状态栏是可见或不可见。它的某种形式的黑客攻击，但它为我工作。我在服务创建的方法：
Finally I have discovered how to check if statusbar is visible or not. Its some kind of hack, but it works for me. I created that method in my Service:
private void createHelperWnd() {
WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
final WindowManager.LayoutParams p = new WindowManager.LayoutParams();
p.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;
p.gravity = Gravity.RIGHT | Gravity.TOP;
p.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
p.width = 1;
p.height = LayoutParams.MATCH_PARENT;
p.format = PixelFormat.TRANSPARENT;
helperWnd = new View(this); //View helperWnd;
wm.addView(helperWnd, p);
final ViewTreeObserver vto = helperWnd.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
if (heightS == helperWnd.getHeight()) {
isFullScreen = true;
} else {
isFullScreen = false;
}
}
});
}
其中的宽度和高度我们在全球的屏幕尺寸;在这里，我只是比较不可见的辅助窗口的高度为屏幕高度，科学决策，如果状态栏是可见的。而且不要忘了删除helperWnd在你的服务的onDestroy。
where widthS and heightS our global screen size;Here I just compared invisible helper window height to screen height and make decision if status bar is visible. And do not forget to remove helperWnd in onDestroy of your Service.
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