Android实现抖音头像底部弹框效果的实例代码

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View cOntentView= LayoutInflater.from(MainActivity.this).inflate(R.layout.activity_test, null);
        PopupWindow popWnd = new PopupWindow(MainActivity.this);
        popWnd.setContentView(contentView);
        popWnd.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
        popWnd.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
        popWnd.setBackgroundDrawable(new ColorDrawable(0x00000000));
        popWnd.setOutsideTouchable(false);
        popWnd.setFocusable(true);
        //相对于父控件的底部显示 无任何偏移
        popWnd.showAtLocation(v, Gravity.BOTTOM, 0, 0);