我的获取视图位置的utils函数，它会返回一个x值和y值的Point对象

public static Point getLocationOnScreen(View view){
    int[] location = new int[2];
    view.getLocationOnScreen(location);
    return new Point(location[0], location[1]);
}

使用

Point viewALocation = getLocationOnScreen(viewA);

你可以使用getLocationOnScreen()或getLocationInWindow()来获取视图的坐标。

然后，x和y应该是视图的左上角。如果你的根布局比屏幕小(就像在对话框中)，使用getLocationInWindow将相对于它的容器，而不是整个屏幕。

Java解决方案

int[] point = new int[2];
view.getLocationOnScreen(point); // or getLocationInWindow(point)
int x = point[0];
int y = point[1];

注意:如果value总是0，您可能会在请求位置之前立即更改视图。

为了确保视图有机会更新，在视图的新布局被使用view.post计算后运行你的位置请求:

view.post(() -> {
    // Values should no longer be 0
    int[] point = new int[2];
    view.getLocationOnScreen(point); // or getLocationInWindow(point)
    int x = point[0];
    int y = point[1];
});

~~

芬兰湾的科特林解决方案

val point = IntArray(2)
view.getLocationOnScreen(point) // or getLocationInWindow(point)
val (x, y) = point

注意:如果value总是0，您可能会在请求位置之前立即更改视图。

为了确保视图有机会更新，在视图的新布局被使用view.post计算后运行你的位置请求:

view.post {
    // Values should no longer be 0
    val point = IntArray(2)
    view.getLocationOnScreen(point) // or getLocationInWindow(point)
    val (x, y) = point
}

我建议创建一个扩展函数来处理这个问题:

// To use, call:
val (x, y) = view.screenLocation

val View.screenLocation get(): IntArray {
    val point = IntArray(2)
    getLocationOnScreen(point)
    return point
}

如果你要求可靠性，还可以加上:

view.screenLocationSafe { x, y -> Log.d("", "Use $x and $y here") }

fun View.screenLocationSafe(callback: (Int, Int) -> Unit) {
    post {
        val (x, y) = screenLocation
        callback(x, y)
    }
}

根据Romain Guy的评论，以下是我如何修复它。希望它能帮助其他有这个问题的人。

I was indeed trying to get the positions of the views before they had been laid out on the screen but it wasn't at all obvious that was happening. Those lines had been placed after the initilisation code ran, so I assumed everything was ready. However, this code was still in onCreate(); by experimenting with Thread.sleep() I discovered that the layout is not actually finalised until after onCreate() all the way to onResume() had finished executing. So indeed, the code was trying to run before the layout had finished being positioned on the screen. By adding the code to an OnClickListener (or some other Listener) the correct values were obtained because it could only be fired after the layout had finished.

下面这句话是建议社区编辑的:

请使用onWindowfocuschanged(boolean hasFocus)

binding.ivStory.setOnTouchListener(object : View.OnTouchListener{
        override fun onTouch(p0: View?, event: MotionEvent?): Boolean {
            val x = event?.x
            vak y = event?.y

            when (event!!.action) {
                MotionEvent.ACTION_UP ->

                if (x != null) {
                   //Do your stuff                    }

                MotionEvent.ACTION_DOWN  -> {

                }
            }
            return true
        }

    })

当你触摸屏幕时，这是Kotlin获得屏幕视图坐标的方法。 确保你同时处理动作向上和向下，否则可能会导致多次点击/触摸。

除了上面的答案，对于在哪里和何时调用getLocationOnScreen的问题?

对于与视图相关的任何信息，只有在视图被布局(创建)到屏幕上之后才可用。所以要获得位置，把你的代码放在view.post(Runnable)中，它在view被布局后被调用，像这样:

view.post(new Runnable() {
            @Override
            public void run() {

               // This code will run when view created and rendered on screen

               // So as the answer to this question, you can put the code here
               int[] location = new int[2];
               myView.getLocationOnScreen(location);
               int x = location[0];
               int y = location[1];
            }
        });  

首先，你必须获得视图的localVisible矩形

如:

Rect rectf = new Rect();

//For coordinates location relative to the parent
anyView.getLocalVisibleRect(rectf);

//For coordinates location relative to the screen/display
anyView.getGlobalVisibleRect(rectf);

Log.d("WIDTH        :", String.valueOf(rectf.width()));
Log.d("HEIGHT       :", String.valueOf(rectf.height()));
Log.d("left         :", String.valueOf(rectf.left));
Log.d("right        :", String.valueOf(rectf.right));
Log.d("top          :", String.valueOf(rectf.top));
Log.d("bottom       :", String.valueOf(rectf.bottom));

希望这能有所帮助