我试图让onCreate方法视图的高度，但我找不到任何方法来去除OnGlobalLayoutListener。

I am trying to get height of a view in onCreate method but I couldn't find any way to remove OnGlobalLayoutListener.

在Java的（工作）：

In Java (working):

containerLayout.getViewTreeObserver.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {  
    @Override  
    public void onGlobalLayout() {  
        containerLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this); 
        int width  = layout.getMeasuredWidth();
        int height = layout.getMeasuredHeight(); 

    }  
});

在科特林（而不是除本）：

In Kotlin (not excepting "this"):

   containerLayout.viewTreeObserver.addOnGlobalLayoutListener {
            containerLayout.viewTreeObserver.removeOnGlobalLayoutListener(this)
            Toast.makeText(applicationContext, "size is "+ containerLayout.height,Toast.LENGTH_LONG).show()
        }

有没有参考或例如，对于这个问题？谢谢你。

Is there any reference or example for this problem? Thanks.

推荐答案

这里面不支持引用的lambda。

Referencing a lambda from inside it is not supported.

作为一种变通方法，您可以使用，而不是拉姆达SAM-转换为Java的功能接口匿名对象 OnGlobalLayoutListener ：

As a workaround, you might use anonymous object instead of lambda SAM-converted to Java functional interface OnGlobalLayoutListener:

containerLayout.viewTreeObserver.addOnGlobalLayoutListener(object: OnGlobalLayoutListener {
    override fun onGlobalLayout() {
        // your code here. `this` should work
    }
})