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1. ÔÚ¹¤³ÌµÄ/res/Îļþ¼ÐÏ´´½¨menuÎļþ¼Ð£¬ÓÃÀ´±£´æÄãΪӦÓóÌÐò¶¨ÒåµÄ²Ëµ¥XMLÎļþ¡£
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<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:title="Play" android:id="@+id/media_play"
android:icon="@android:drawable/ic_media_play"/>
<item android:title="Pause" android:id="@+id/media_pause"
android:icon="@android:drawable/ic_media_pause"/>
<item android:title="File" android:id="@+id/file">
<menu>
<item android:title="Open..." android:id="@+id/file_open"/>
<item android:title="Save" android:id="@+id/file_save"/>
<item android:title="Save as" android:id="@+id/file_saveas"/>
<item android:title="Exit" android:id="@+id/file_exit"/>
</menu>
</item>
<item android:title="Edit" android:id="@+id/edit">
<menu>
<group>
<item android:title="Copy" android:id="@+id/edit_copy"/>
<item android:title="Paste" android:id="@+id/edit_paste"/>
<item android:title="Cut" android:id="@+id/edit_cut"/>
<item android:title="Delete" android:id="@+id/edit_delete"/>
</group>
</menu>
</item>
</menu>
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MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_option, menu);
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@Override
public boolean onOptionsItemSelected(MenuItem item) {
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