ActionBarにボタンを表示

sample_menu.xml

<?xml version="1.0" encoding="utf-8"?>

<item

android:id="@+id/menu_search"

android:icon="@android:drawable/ic_menu_search"

android:showAsAction="always"

android:title="検索"/>

</menu>

Activity

@Override

public boolean onCreateOptionsMenu(Menu menu){

MenuInflater inflater = getMenuInflater();

inflater .inflate(R.menu.sample_menu, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item){

switch(item.getItemId()){

case R.id.menu_search:

//検索

search();

return true;

default:

return super.onOptionsItemSelected(item);

}