Android-custom title bar (add buttons and text center in the title bar)

Many Android programs now display buttons and titles on the title bar, such:

 

The following example shows how to implement it.

1. Create a titlebtn. xml file under layout with the following content:

[Html]
<? Xml version = "1.0" encoding = "UTF-8"?>
<RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Android: orientation = "horizontal"
Android: layout_width = "fill_parent"
Android: layout_height = "fill_parent">

<ImageButton
Android: id = "@ + id/imageButton1"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: background = "#00000000"
Android: layout_centerVertical = "true"
Android: layout_alignParentLeft = "true"
Android: src = "@ drawable/prv"/>
 
<TextView
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: layout_centerInParent = "true"
Android: text = "title bar"/>
 
<ImageButton
Android: id = "@ + id/imageButton1"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: background = "#00000000"
Android: layout_centerInParent = "true"
Android: layout_alignParentRight = "true"
Android: src = "@ drawable/next"/>

</RelativeLayout>
Note the following when creating this xml:

A) Layout with RelativeLayout

B) In particular, layout_centerInParent must be specified for the properties of the right button.

2. Add the following code to onCreate in the Activity:
[Java]
RequestWindowFeature (Window. FEATURE_CUSTOM_TITLE );
SetContentView (R. layout. main );
GetWindow (). setFeatureInt (Window. FEATURE_CUSTOM_TITLE, R. layout. titlebtn );

The above two steps can be used to achieve the above effect.

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