popupwindow使用（弹出窗口）

private Handler myHandler = new Handler(){
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
MfsHumidityTest  mfsHumidityTest= (MfsHumidityTest)msg.obj;

popupWindow = new PopupWindow(popupView,view.getWidth(), view.getHeight()/2, true);//第一个参数弹出窗口显示的内容，二窗口宽度，三窗口高度，四是否获取焦点
popupWindow.setOutsideTouchable(true);//可点击窗口外的区域
popupWindow.getContentView().setOnTouchListener(
new OnTouchListener() {
public boolean onTouch(
View v,
MotionEvent event) {
popupWindow.dismiss();//关闭窗口
return true;
}
});
popupWindow.showAsDropDown(forStandView, 0, 0);//参数一在那个控件下显示，二以控件x轴移动多少像素，三以控件y轴移动多少像素
popupWindow.setBackgroundDrawable(mContext.getResources().getDrawable(R.drawable.button_background_red));//设置背景颜色
popupWindow.update();
break;

default:
break;
}
}
};