禁用状态时更改ImageButton Drawable Android

Question

I want to create a drawable resource to change the image used in an image button when it is disabled.

I have created a drawable resource

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item>
        <bitmap android:src="@drawable/enabled_image" />
    </item>
    <item android:state_enabled="false">
        <bitmap android:src="@drawable/disabled_image" />
    </item>
</selector>

And then I am referencing it in the android:src="@drawable/resource" . When I call ImageButton.setEnabled(false) the button is not clickable but the style doesn't change.

android:background is used for other stuff (radius colours etc)

Answer 1

Try this

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_enabled="false" android:drawable="@drawable/disabled_backgroungd"/>
    <item android:state_pressed="false"
        android:drawable="@drawable/normal_backgroungd" />
    <item android:state_pressed="true"
        android:drawable="@drawable/backgroungd_selected" />
    <item android:state_enabled="true" android:drawable="@drawable/normal_backgroungd"/> 
</selector>

EDIT : State List

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"
    android:constantSize=["true" | "false"]
    android:dither=["true" | "false"]
    android:variablePadding=["true" | "false"] >
    <item
        android:drawable="@[package:]drawable/drawable_resource"
        android:state_pressed=["true" | "false"]
        android:state_focused=["true" | "false"]
        android:state_hovered=["true" | "false"]
        android:state_selected=["true" | "false"]
        android:state_checkable=["true" | "false"]
        android:state_checked=["true" | "false"]
        android:state_enabled=["true" | "false"]
        android:state_activated=["true" | "false"]
        android:state_window_focused=["true" | "false"] />
</selector>

EDIT :

The order of the items states in the drawable makes a difference.

Answer 2

if(!ImageButton.isEnabled())
{
     //set the drawable         
}