修改android4.4图库系列二——自定义菜单

自定义菜单，主要的思路就是利用PopupWindow来模仿菜单的效果。效果图如下：

具体代码如下：

1、关键代码

ArrayAdapter listAdatper = new ArrayAdapter(getApplicationContext(),         R.layout.item_menu_list,         R.id.menuText, new String[]{"删除","设置"});        // 加载popupWindow的布局文件          View popupWindowView = LayoutInflater.from(getApplicationContext())                  .inflate(R.layout.view_popwindow, null);          final ListView menuList = (ListView)popupWindowView.findViewById(R.id.menuList);        menuList.setAdapter(listAdatper);        menuList.setOnItemClickListener(new AdapterView.OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> parent, View view,int position, long id) {switch (position) {case 0:// 删除Log.e(TAG, "000000000");break;case 1:// 设置Log.e(TAG, "111111111");break;default:Log.e(TAG, "default");break;}}});                final PopupWindow popupWindow = new PopupWindow(popupWindowView, LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);        mainMenu.setOnClickListener(new OnClickListener() {@SuppressWarnings("deprecation")@Overridepublic void onClick(View v) {// 如果不在弹出之前加上这条语句，ListView的item将无法点击 popupWindow.setFocusable(true);// 防止弹出菜单获取焦点之后，点击activity的其他组件没有响应popupWindow.setBackgroundDrawable(new BitmapDrawable()); popupWindow.showAsDropDown(mainMenu); }});

2、xml文件代码

1）item_menu_list.xml

<?xml version="1.0" encoding="utf-8"?>

2）view_popwindow.xml

<?xml version="1.0" encoding="utf-8"?>

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