The Android ActionBar Tips

highlight.java

// How customize the SearchView in the ActionBar. In your activity

import android.support.v4.view.MenuItemCompat;
import android.support.v7.widget.SearchView;
import android.support.v7.widget.SearchView.SearchAutoComplete;
...

@Override
public boolean onCreateOptionsMenu(Menu menu) {
  getMenuInflater().inflate(R.menu.menu_home, menu);
  MenuItem searchItem = menu.findItem(R.id.item_search);
  mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
  mSearchView.setOnQueryTextListener(this);
  mSearchView.setQueryHint(getString(R.string.text));
  SearchAutoComplete searchAutoComplete = (SearchAutoComplete) mSearchView.findViewById(android.support.v7.appcompat.R.id.search_src_text);
  searchAutoComplete.setHintTextColor(mRes.getColor(android.R.color.white));
  searchAutoComplete.setTextSize(14);
  return super.onCreateOptionsMenu(menu);
}

MyActivity.java

// How make the ActionBar title clickable on Android under API 11 (1/2)

private static final boolean API_LEVEL_UNDER_11 = android.os.Build.VERSION.SDK_INT < 11;
private boolean navigationDrawerEnabled = true; // Useful if your app need navigation drawer

@Override
protected void onCreate(Bundle savedInstanceState) {
  if (API_LEVEL_UNDER_11) {
    getSupportActionBar().setCustomView(R.layout.partial_actionbar);
    getSupportActionBar().setDisplayShowCustomEnabled(true);
    ((TextView) getSupportActionBar().getCustomView().findViewById(R.id.action_bar_text)).setText(title);
  } else {
    getSupportActionBar().setTitle(title);
  }
  getSupportActionBar().setDisplayHomeAsUpEnabled(true);
  getSupportActionBar().setHomeButtonEnabled(true);
}

...

public void onClickTitle(View v) {
  if (navigationDrawerEnabled) {
    toggleDrawer();
  } else {
    finish();
  }
}

partial_actionbar.xml

// How make the ActionBar title clickable on Android under API 11 (2/2)

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent" >
  
  <TextView
      android:id="@+id/action_bar_text"
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
      android:background="@drawable/action_bar"
      android:clickable="true"
      android:gravity="center_vertical"
      android:onClick="onClickTitle"
      android:paddingLeft="5dp"
      android:paddingRight="5dp"
      android:text="@string/app_name"
      android:textSize="21sp" />
</LinearLayout>