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ImageButton has the same property as ImageView . Only one feature is extra, which is, images set through ImageButton are clickable, and actions can be attached with them upon clicking. Just like a button, the setOnClickListener() can be used to set an event listener for click event on this.
For example, you can make an ImageView act like a simple Button by adding android:onClick to the ImageView . In this task you make the images in your layout clickable.
So fundamentally, a Button can have text and is clickable, whereas an ImageButton is a bit more flexible in how you set the image. It has methods from its ImageView base class like setImageURI which a Button does not.
ImageView is used when we want to work with images or we want to display them in our application. So, this article will give you a complete idea of using an ImageView as a Button in android studio. So, without wasting further time let's go to the article and read how we can achieve this task.
There's no differences, except default style. ImageButton has a non-null background by default.
EDIT: Also, ImageButton.onSetAlpha() method always returns false, scaleType is set to center and it's always inflated as focusable.
Here's ImageButton's default style:
<style name="Widget.ImageButton">
<item name="android:focusable">true</item>
<item name="android:clickable">true</item>
<item name="android:scaleType">center</item>
<item name="android:background">@android:drawable/btn_default</item>
</style>
ImageButton is inherited from ImageView
public class ImageButton extends ImageView {
public ImageButton(Context context) {
this(context, null);
}
public ImageButton(Context context, AttributeSet attrs) {
this(context, attrs, com.android.internal.R.attr.imageButtonStyle);
}
public ImageButton(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setFocusable(true);
}
@Override
protected boolean onSetAlpha(int alpha) {
return false;
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
event.setClassName(ImageButton.class.getName());
}
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(ImageButton.class.getName());
}
as @Micheal describe i just add details to his answer
The effect of a button click when I click is there for imagebutton but not for imageView.
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