Android实现菜单关联activity的方法示例

public class MainActivity extends AppCompatActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
//    setContentView(R.layout.activity_main);
  }
  //当用户点击按钮键时 触发该方法
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    //向 Menu 中添加子菜单
    SubMenu prog = menu.addSubMenu("Open new activity");
    //设置菜单头图标
    prog.setHeaderIcon(R.drawable.seek02);
    //设置菜单头标题
    prog.setHeaderTitle("选择宁乡要启动的程序");
    //添加菜单项
    MenuItem menuItem = prog.add("watch csti");
    //为菜单设置关联activity
    menuItem.setIntent(new Intent(this, FullscreenActivity.class));
    return super.onCreateOptionsMenu(menu);
  }
}