Android set background color button pressed

Question

I would like to change the background color of my ImageButton on pressed event.

Here is what i am done :

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval" >

    <solid android:color="@color/rose_normal" />
    <solid
        android:state_pressed="true"
        android:color="@color/rose_fonce" />

    <stroke
        android:width="1sp"
        android:color="@color/rose_fonce" />

</shape>

My button is well in "rose_normal" color, but never in "rose_fonce" color on press.

Where is the problem ?

EDIT : PROBLEM SOLVED :

Create one xml file called background_rounded_button.xml :

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/rounded_button_rose_fonce" android:state_selected="true"></item>
    <item android:drawable="@drawable/rounded_button_rose_fonce" android:state_pressed="true"></item>
    <item android:drawable="@drawable/rounded_button_rose_normal"></item>

</selector>

rounded_button_rose_fonce.xml :

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval" >

    <solid android:color="@color/rose_fonce" />

    <stroke
        android:width="1sp"
        android:color="@color/rose_fonce" />

</shape>

rounded_button_rose_normal.xml :

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval" >

    <solid android:color="@color/rose_normal" />

    <stroke
        android:width="1sp"
        android:color="@color/rose_fonce" />

</shape>

And finally, apply background for the button :

 <ImageButton
        android:id="@+id/all_annonce_button_search"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="10dp"
        android:layout_marginRight="10dp"
        android:background="@drawable/background_rounded_button.xml"
        android:padding="16dp"
        android:src="@drawable/ic_action_search" />

Answer 1

The problem is that you are not using a selector, but a shape.

Try this code (button_selector.xml, put it in your drawable folder):

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@color/rose_fonce" android:state_selected="true"></item>
    <item android:drawable="@color/rose_fonce" android:state_pressed="true"></item>
    <item android:drawable="@color/rose_normal"></item>

</selector>

When setting this selector as the background of a Button, it will have the "rose_normal" color in normal state, and the "rose_fonce" color when pressed or selected.

Example:

<Button
    android:background="@drawable/button_selector" />