菜单（五）ActionMode和PopupMenu

package com.example.actionmode;import android.app.Activity;import android.os.Bundle;import android.view.ActionMode;import android.view.Menu;import android.view.MenuInflater;import android.view.MenuItem;import android.view.View;import android.view.View.OnClickListener;import android.view.View.OnLongClickListener;import android.widget.Button;import android.widget.PopupMenu;import android.widget.PopupMenu.OnMenuItemClickListener;import android.widget.Toast;public class MainActivity extends Activity {private Button button1;private Button button2;private ActionMode actionMode;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);button1 = (Button) findViewById(R.id.button1);button2 = (Button) findViewById(R.id.button2);button1.setOnLongClickListener(new OnLongClickListener() {@Overridepublic boolean onLongClick(View v) {// TODO Auto-generated method stubif (actionMode != null) {return false;}actionMode = startActionMode(actionCallback);v.setSelected(true);return true;}});button2.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubPopupMenu popupMenu = new PopupMenu(MainActivity.this, v);popupMenu.setOnMenuItemClickListener(new OnMenuItemClickListener() {@Overridepublic boolean onMenuItemClick(MenuItem item) {// TODO Auto-generated method stubswitch (item.getItemId()) {case R.id.edit:edit();break;case R.id.share:share();break;case R.id.delete:delete();break;default:break;}return false;}});MenuInflater menuInflater = getMenuInflater();menuInflater.inflate(R.menu.main, popupMenu.getMenu());popupMenu.show();// 如果有空间，显示在view的上面，没空间显示在view的下面}});}private ActionMode.Callback actionCallback = new ActionMode.Callback() {@Overridepublic boolean onPrepareActionMode(ActionMode mode, Menu menu) {// TODO Auto-generated method stubreturn false;}@Overridepublic void onDestroyActionMode(ActionMode mode) {// TODO Auto-generated method stubactionMode = null;}// 从xml加载菜单@Overridepublic boolean onCreateActionMode(ActionMode mode, Menu menu) {// TODO Auto-generated method stubMenuInflater menuInflater = getMenuInflater();menuInflater.inflate(R.menu.main, menu);return true; // 注意这里要返回true}@Overridepublic boolean onActionItemClicked(ActionMode mode, MenuItem item) {// TODO Auto-generated method stubswitch (item.getItemId()) {case R.id.edit:edit();break;case R.id.share:share();break;case R.id.delete:delete();break;default:break;}return false;}};public void edit() {Toast.makeText(MainActivity.this, "编辑", Toast.LENGTH_SHORT).show();}public void share() {Toast.makeText(MainActivity.this, "分享", Toast.LENGTH_SHORT).show();}public void delete() {Toast.makeText(MainActivity.this, "删除", Toast.LENGTH_SHORT).show();}}

res/menu/main.xml

源代码下载

，只要看得开放得下，何愁没有快乐的春莺在啼鸣，

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