PopupWindow(2)简单示例-自定义弹出菜单

public class CustomActionProvider extends ActionProvider implements
OnMenuItemClickListener, OnClickListener, OnTouchListener, OnKeyListener { private final Context context;// 上下文
private View actionView;//action view private PopupWindow mPopupWindow;//popup window 里有个view,view显示的像个menu
private View mMenu; //popup window 里的显示控件 private void initPopupMenu(){ LayoutInflater lif = LayoutInflater.from(context); mMenu = lif.inflate(R.layout.custom_popup_window, null);
//不用setBackgroundDrawable的时候必须加这句才能back键和menu键退出
mMenu.setFocusableInTouchMode(true);
mMenu.setOnKeyListener(this);
mMenu.setOnTouchListener(this); mPopupWindow = new PopupWindow(mMenu,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT);
/*
* setBackgroundDrawable很重要,没有这个函数 back键和menu键关闭popwindow 很麻烦,
* 有了它以后,就不用为popwindow内的控件分别设置setOnKeyListener和setOnTouchListener了
* 可以同时支持back返回和点popwindow外面关闭popwindow,
*/
// mPopupWindow.setBackgroundDrawable(new ColorDrawable(-00000));
mPopupWindow.setFocusable(true);
mPopupWindow.setOutsideTouchable(true);
mPopupWindow.setAnimationStyle(R.anim.popwindow_anim);
mMenu.findViewById(R.id.btn1_popup_window).setOnClickListener(this);
mMenu.findViewById(R.id.btn2_popup_window).setOnClickListener(this);
mMenu.findViewById(R.id.btn3_popup_window).setOnClickListener(this);
mMenu.findViewById(R.id.btn4_popup_window).setOnClickListener(this);
mMenu.findViewById(R.id.btnClose_popup_window).setOnClickListener(this);
}
//...
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btn_action_view_for_costomProvider: {
mPopupWindow.showAsDropDown(v,-20,10);
}
return;
case R.id.btn4_popup_window:
case R.id.btn3_popup_window:
case R.id.btn2_popup_window:
case R.id.btn1_popup_window:
Toast.makeText(context, "popup window item clicked",
Toast.LENGTH_SHORT).show();
break;
case R.id.btnClose_popup_window:
break;
}
mPopupWindow.dismiss(); }
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
case KeyEvent.KEYCODE_MENU:
if (mPopupWindow != null && mPopupWindow.isShowing()) {
mPopupWindow.dismiss();
}
break;
}
return true;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
mPopupWindow.dismiss();
return false;
}
}