Properties for application specific attributes in Android

I want to center the application title/label in my Android app but I can't find a lot of documentation on how to set that property. I have found a couple of posts saying that I can create a开发者_如何学Python custom title bar and change the theme in my manifest but I just can't help thinking there is a simpler way to just center the title.

In my experience documentation on this isn't great but I figured it out and I'll share. It's actually pretty simple.

Custom centered title bar on your activity:

Add two lines to your activity at the beginning of onCreate() so it looks like this:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
    setContentView(R.layout.main);
    getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.mytitle);
...
...
...

}

Now put mytitle.xml in your layout directory. This xml file should look something like this to center your title text:

<?xml version="1.0" encoding="utf-8"?>
<TextView
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/myTitle"
  android:textStyle="bold"
  android:textSize="15sp"
  android:text="My Custom Title Text"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:gravity="center_vertical|center_horizontal"
  android:textColor="#FFFFFF"
   />

That's it.

You can change the label of any of your activities with the android:label="@string/app_name" in your manifest. You can do it in code too. I'm not sure what else you want