Meun菜单选项

package com.example.muen;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {

menu.add(1, 1001, 0, "菜单1");
menu.add(1, 1002, 1, "菜单2");
menu.add(1, 1003, 2, "菜单3");
menu.add(1, 1004, 3, "菜单4");
menu.add(1, 1005, 4, "菜单5");
menu.add(1, 1006, 5, "菜单6");
menu.add(1, 1007, 6, "菜单7");
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

int id = item.getItemId();
switch(id){
case 1001:
Toast.makeText(this, "菜单1", Toast.LENGTH_SHORT).show();
break;

case 1002:
Toast.makeText(this,item.getTitle(), Toast.LENGTH_SHORT).show();
break;

case 1003:
Toast.makeText(this, "菜单3", Toast.LENGTH_SHORT).show();
break;

case 1004:
Toast.makeText(this, "菜单4", Toast.LENGTH_SHORT).show();
break;

case 1005:
Toast.makeText(this, "菜单5", Toast.LENGTH_SHORT).show();
break;

case 1006:
Toast.makeText(this, "菜单6", Toast.LENGTH_SHORT).show();
break;

case 1007:
Toast.makeText(this, "菜单7", Toast.LENGTH_SHORT).show();
break;
}
return super.onOptionsItemSelected(item);
}
}

package com.example.meun;

import android.app.Activity;
import android.os.Bundle;
import android.view.ContextMenu;

import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.Toast;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

@Override
public boolean onContextItemSelected(MenuItem item) {

int id=item.getItemId();
if(id==1001){
Toast.makeText(this, "该东西还未读", Toast.LENGTH_SHORT).show();
}

return super.onContextItemSelected(item);
}

@Override
public void onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo) {

menu.add(1, 1001, 0, "标为未读");
menu.add(1, 1002, 1, "置顶聊天");
menu.add(1, 1003, 2, "删除该聊天");

super.onCreateContextMenu(menu, v, menuInfo);
}
}