android - 如何获取 View /布局的 z-index ？或者如何知道它是否在前面？

Question

如何获取 View /布局的 z-index ？或者如何知道它是否在前面？ 我专门需要它用于RelativeLayout

我正在寻找类似 view.getIndex() 或 view.isOnFront()

Answer 1

试试这个

RelativeLayout re=(RelativeLayout) findViewById(R.id.MyRelative);
    int[] zIndexTab=new int[re.getChildCount()];
    for (int i = 0; i < re.getChildCount(); i++) {
        zIndexTab[i]=re.getChildAt(i).getId(); // zIndexTab[0] will have the Id of the first child in this Layout etc..
        // So the first index corresponding to the first view.
        // The smaller View index will be under the biggest View Index
        // for example my first View is a button it's index is 0 , the second view is a spinner it's index is 1
        // so the spinner will be on the front of the button etc..
    }