android,..onCreateOptionsMenu....选项菜单,屏幕右上角没有菜单的图标啊?该点击哪儿??
packagecom.mingrisoft;importandroid.app.Activity;importandroid.os.Bundle;importandroi...
package com.mingrisoft;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}//public void onCreate
//创建选项菜单
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater=new MenuInflater(this); //实例化一个MenuInflater对象
inflater.inflate(R.menu.optionmenu, menu); //解析菜单文件
return true;
}//public boolean onCreateOptionsMenu
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getGroupId()==R.id.setting){ //判断是否选择了参数设置菜单组
if(item.isChecked()){ //当菜单项已经被选中
item.setChecked(false); //设置菜单项不被选中
}else{
item.setChecked(true); //设置菜单项被选中
}
}
if(item.getItemId()!=R.id.item2){
//弹出消息提示框显示选择的菜单项的标题
Toast.makeText(MainActivity.this, item.getTitle(), Toast.LENGTH_SHORT).show();
}
return true;
}///public boolean onOptionsItemSelected
}//public class MainActivity extends Activity 展开
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}//public void onCreate
//创建选项菜单
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater=new MenuInflater(this); //实例化一个MenuInflater对象
inflater.inflate(R.menu.optionmenu, menu); //解析菜单文件
return true;
}//public boolean onCreateOptionsMenu
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getGroupId()==R.id.setting){ //判断是否选择了参数设置菜单组
if(item.isChecked()){ //当菜单项已经被选中
item.setChecked(false); //设置菜单项不被选中
}else{
item.setChecked(true); //设置菜单项被选中
}
}
if(item.getItemId()!=R.id.item2){
//弹出消息提示框显示选择的菜单项的标题
Toast.makeText(MainActivity.this, item.getTitle(), Toast.LENGTH_SHORT).show();
}
return true;
}///public boolean onOptionsItemSelected
}//public class MainActivity extends Activity 展开
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