Question

I have got a cool image (fancy with rounded corners). I want to implement that image in my android app. When clicked on it, I want it to darken a bit (like a button when pressed) and launch a new activity.

How can I do that and what should I use (ImageView, ImageButton or just Button) ?

Answer 1

You’ll require two version of your cool image call it as active.png (clicked state i.e darken a bit) and inactive.png (normal state).
in the drawable folder create a Selector file for them as follows
Like : /drawable/cool_button_selector.xml

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

    <item android:state_pressed="true" android:drawable="@drawable/active"/> 
    <item android:drawable="@drawable/inactive"/>

</selector>

and then user the ImageButton like this:

<ImageButton
    android:id="@+id/coolImageButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/cool_button_selector"
    android:background="@null" />

Added: android:background=”@null” to <ImageButton>

Hope this helps 🙂