Android 来自 getLocationOnScreen/getLocationInWindow 的不正确坐标
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Incorrect Coordinates From getLocationOnScreen/getLocationInWindow
提问by nimph
A call to getLocationOnScreen()or getLocationInWindow()both give me a top/Ycoordinate that is about ~30px (status/notifications bar's height) too far down. The left/Xcoordinate is dead on.
调用getLocationOnScreen()或getLocationInWindow()两者都给我一个top/Y大约 ~30px（状态/通知栏的高度）太远的坐标。该left/X坐标上死了。
As I hinted above, I believe the difference is because of the status/notification bar... I could be wrong. I think I can solve this if I can determine the size of the notification bar but, I'm having trouble doing just that.
正如我上面暗示的那样，我相信差异是因为状态/通知栏......我可能是错的。如果我可以确定通知栏的大小，我想我可以解决这个问题，但是，我在这样做时遇到了麻烦。
Any help would be greatly appreciated.
任何帮助将不胜感激。
回答by nimph
I ended up solving this issue by determining the height of the status/notification bar like so:
我最终通过确定状态/通知栏的高度来解决这个问题，如下所示：
View globalView = ...; // the main view of my activity/application
DisplayMetrics dm = new DisplayMetrics();
this.getWindowManager().getDefaultDisplay().getMetrics(dm);
int topOffset = dm.heightPixels - globalView.getMeasuredHeight();
View tempView = ...; // the view you'd like to locate
int[] loc = new int[2];
tempView.getLocationOnScreen(loc);
final int y = loc[1] - topOffset;
回答by satur9nine
Here is how I like to get the status bar height, and adjust the offset:
这是我喜欢获取状态栏高度并调整偏移量的方式：
final int[] location = new int[2];
anchor.getLocationInWindow(location); // Includes offset from status bar, *dumb*
Rect anchorRect = new Rect(location[0], location[1],
location[0] + anchor.getWidth(), location[1] + anchor.getHeight());
anchor.getRootView().findViewById(android.R.id.content).getLocationInWindow(location);
int windowTopOffset = location[1];
anchorRect.offset(0, -windowTopOffset);
回答by user330844
I am having the same problem, try using
我有同样的问题，尝试使用
offset = myView.GetOffsetY();
and adjust your Y coord by that value, e.g.
并通过该值调整您的 Y 坐标，例如
coordY -= offset;
The class which offers the ``-method:
提供 ``-method 的类：
class MyView extends View {
public int GetOffsetY() {
int mOffset[] = new int[2];
getLocationOnScreen( mOffset );
return mOffset[1];
}
}
回答by groucho
This answer does not include how to get the status bar height, but it does explain the behavior of getLocationOnScreen()and getLocationInWindow()returning the same value.
这个答案并不包括如何让状态栏的高度，但它确实解释的行为getLocationOnScreen()，并getLocationInWindow()返回相同的值。
In the case of a normal activity (not a dialog) you should expect these two methods to return the same value. A Window lays out underneath (as in z-order not y coordinates) the status bar, so these methods cannot be used to determine the height of the status bar.
在正常活动（不是对话框）的情况下，您应该期望这两种方法返回相同的值。窗口在状态栏下方（如 z 顺序而不是 y 坐标）布置，因此这些方法不能用于确定状态栏的高度。
