private void showPopupView() { if (mPopupWindow == null) { View view = getLayoutInflater().inflate(R.layout.newest_layout, null); mPopupWindow = new PopupWindow(view, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); mPopupWindow.setFocusable(true);//需要设置为ture，表示可以聚焦 //需要设置背景，用物理键返回的时候 mPopupWindow.setBackgroundDrawable(new BitmapDrawable(getResources())); mPopupWindow.setOutsideTouchable(true); view.setOnTouchListener(new OnTouchListener()// 需要设置，点击之后取消popupview，即使点击外面，也可以捕获事件 { public boolean onTouch(View v, MotionEvent event) { if (mPopupWindow.isShowing()) { Trace.Log("-------------------onTouch------------"); mPopupWindow.dismiss(); } return false; } }); } if (mPopupWindow.isShowing()) { mPopupWindow.dismiss(); } else { View parent = findViewById(R.id.newest); mPopupWindow.showAsDropDown(parent);// 显示再指定控件的下面 } }