[Andriod] 使用按鈕觸發選單: openOptionsMenu();

使用按鈕觸發menu被顯示。

Button menuBtn = (Button)this.findViewById(R.id.topic_3_menu_button);
menuBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.d(TAG,"點擊功能選單鈕");
openOptionsMenu();
}


});

http://stackoverflow.com/questions/18913635/how-to-trigger-a-menu-button-click-event-through-code-in-android