android中optionsmenu的创建

一、用xml配置

 在res文件夹下新建menu文件夹，menu下新建options_menu.xml文件，加入代码

1、 <menu xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:id="@+id/about"
  android:title="关于"
  android:checkable="true" />
  <item android:id="@+id/choose"
  android:title="选择" />
  <item android:id="@+id/quit"
  android:title="QUIT" />
</menu>

 2、activity类中加入代码

  public boolean onCreateOptionsMenu(Menu menu) {
  MenuInflater inflater = getMenuInflater();
  inflater.inflate(R.menu.options_menu, menu);
  return super.onCreateOptionsMenu(menu);
  }
  
  public boolean onOptionsItemSelected(MenuItem aitem)
  {
  super.onOptionsItemSelected(aitem);
  switch(aitem.getItemId())
  {
  case R.id.about:
  setTitle("你按下了'关于'菜单项");
  progressBarHorizontal.setProgress(200);
  openOptionsDialog();
  break;
  case R.id.choose:
  setTitle("你按下了'选择'菜单项");
  openOptionsChooseDialog();
  break;
  case R.id.quit:
  setTitle("你按下了'离开'菜单项");
  finish();
  break;
  }
  return true;
  }
  
  private void openOptionsDialog()
  {
  new AlertDialog.Builder(this)
  .setTitle(R.string.app_about)
  .setMessage(R.string.app_about_msg)
  .setPositiveButton(R.string.str_ok, new DialogInterface.OnClickListener()
  {
  public void onClick(DialogInterface dialoginterface, int i)
  {
  
  }
  })
  .show();
  }

 

  private void openOptionsChooseDialog()
  {
  new AlertDialog.Builder(this)
  .setTitle(R.string.str_alert)
  .setItems(R.array.items_irdc_dialog, new DialogInterface.OnClickListener()
  {
  public void onClick(DialogInterface dialoginterface, int i)
  {/*
  String[] aryShop = getResources().getStringArray(R.array.items_irdc_dialog);
  new AlertDialog.Builder(this)
  .setMessage(R.string.app_about_msg)
  .setPositiveButton(R.string.str_ok, new DialogInterface.OnClickListener()
  {
  public void onClick(DialogInterface dialoginterface, int i)
  {
  
  }
  })
  .show();*/
  }
  })
  .show();
  }

 

 

 

OK。。。

 

二、直接用代码写

 public static final int ABOUT_ID = Menu.FIRST;
 public static final int CHOOSE_ID = Menu.FIRST + 1;
 public static final int EXIT_ID = Menu.FIRST + 2;

 

 public boolean onCreateOptionsMenu(Menu menu)
  {
  menu.add(0, ABOUT_ID, 0, R.string.app_about);
  menu.add(0, CHOOSE_ID, 0, R.string.str_choose);
  menu.add(0, EXIT_ID, 0, R.string.str_exit);
  return super.onCreateOptionsMenu(menu);
  }
  
  public boolean onOptionsItemSelected(MenuItem aitem)
  {
  super.onOptionsItemSelected(aitem);
  switch(aitem.getItemId())
  {
  case ABOUT_ID:
  setTitle("你按下了'关于'菜单项");
  progressBarHorizontal.setProgress(200);
  openOptionsDialog();
  break;
  case CHOOSE_ID:
  setTitle("你按下了'选择'菜单项");
  openOptionsChooseDialog();
  break;
  case EXIT_ID:
  setTitle("你按下了'离开'菜单项");
  finish();
  break;
  }
  return true;
  }
  
  private void openOptionsDialog()
  {
  new AlertDialog.Builder(this)
  .setTitle(R.string.app_about)
  .setMessage(R.string.app_about_msg)
  .setPositiveButton(R.string.str_ok, new DialogInterface.OnClickListener()
  {
  public void onClick(DialogInterface dialoginterface, int i)
  {
  
  }
  })
  .show();
  }
  
  private void openOptionsChooseDialog()
  {
  new AlertDialog.Builder(this)
  .setTitle(R.string.str_alert)
  .setItems(R.array.items_irdc_dialog, new DialogInterface.OnClickListener()
  {
  public void onClick(DialogInterface dialoginterface, int i)
  {/*
  String[] aryShop = getResources().getStringArray(R.array.items_irdc_dialog);
  new AlertDialog.Builder(this)
  .setMessage(R.string.app_about_msg)
  .setPositiveButton(R.string.str_ok, new DialogInterface.OnClickListener()
  {
  public void onClick(DialogInterface dialoginterface, int i)
  {
  
  }
  })
  .show();*/
  }
  })
  .show();
  }