Android custom TitleBar - hide text

Question

I am using a titlebar with a background image in my android app.

values/custom_styles.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="TitlebarBackgroundStyle">
        <item name="android:background">@drawable/titlebar</item>
    </style>
    <style name="Theme.MyCustomTheme" parent="android:Theme"> 
        <item name="android:windowTitleBackgroundStyle">@style/TitlebarBackgroundStyle</item>
        <item name="android:windowTitleSize">45dp</item>
    </style>
</resources>

layout/titlebar.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="horizontal"
 android:layout_width="fill_parent"
 android:layout_height="45dip"
 android:gravity="center_vertical">
 <ImageView
  android:id="@+id/header"
  android:src="@drawable/titlebar"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>
</LinearLayout>

Manifest:

<application android:icon="@drawable/icon" android:label="@string/app_name" android:theme="@style/Theme.MyCustomTheme">

This works pretty well so far.

The only thing I'd like to do now is to hide the text on the titlebar ...

I tried:

<item name="android:textSize">0dp</item>

but with no luck. Is there any way to set the transparency or some other property that would allow me to see the background image but not the text?

thanks for your thoughts Ron

Answer 1

Add this to your manifest

<application  android:label="bla bla"
              android:icon="@drawable/bla bla"
            --->  android:theme="@android:style/Theme.NoTitleBar">

Answer 2

You can do it in Java, not resource xml, since the TextView on the title bar is determined programmatically by some lines in the Android Java source code.

You can hide the title bar's TextView in this way :

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
    root = (LinearLayout) decorView.getChildAt(0);
    FrameLayout titleContainer = (FrameLayout) root.getChildAt(0);
    TextView title = (TextView) titleContainer.getChildAt(0);
    title.setVisibility(View.GONE);
}

Answer 3

android:theme="@android:style/Theme.NoTitleBar"> 

adding this in your manifest file works..