The only image for all button states for Android?

Question

I have an image for my button. In order to make use of it I have to have 1 additional image for each state: 1. disabled 2. selected 3. pressed etc..

in iOS all those additional states are handled automatically and deferred from original image provided.

Is it possible to accomplish this for Android?

Answer 1

Is it possible to accomplish this for Android?

No, It is NOT. You need to have all states's images with you to define the selector

You can define button_selector.xml

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


    <!-- Selected state -->
    <item android:drawable="@drawable/button_bg_selected" android:state_selected="true"></item>

    <!-- Pressed  state -->
    <item android:drawable="@drawable/button_bg_pressed" android:state_pressed="true"></item>

     <!-- Disabled   state -->
    <item android:drawable="@drawable/button_bg_disabled" android:state_enabled="false"></item>

    <!-- Normal state -->
    <item android:drawable="@drawable/button_bg_normal"></item>



</selector>

Then simply assign this selector as a background of a button

<Button
     android:id="@+id/button1"
     android:background="@drawable/button_selector"
     android:layout_width="200dp"
     android:layout_height="126dp"
     android:text="Hello" />

Refer : Button Selector

Hope it will help you ツ