Buttons (Button controls) and ImageButton (Picture button controls) for Android controls

First, button and ImageButton Special certificate:

1. Common Special Certificate:

Can be used as a button to generate click events

2. Different Special certificates:

Button has the Text property, ImageButton No

ImageButton has the SRC attribute, button has no

Ii. Setting the button and ImageButton controls in the layout file

<ButtonAndroid:id= "@+id/button1"Android:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:text= "@string/login" />    <ButtonAndroid:id= "@+id/button2"style= "? Android:attr/buttonstylesmall"Android:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:text= "@string/login"Android:background= "#ff00ff" />    <ImageButtonAndroid:id= "@+id/imagebutton1"Android:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:src= "@drawable/ic_launcher" />        <ImageButtonAndroid:id= "@+id/imagebutton1"Android:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:background= "@drawable/ic_launcher" />

Buttons (Button controls) and ImageButton (Picture button controls) for Android controls