Imagebutton and button

1. Button Control

The butotn control is mainly used to implement some command operations by registering a listener event. First, put a button in the XML document.

1     <Button2         android:id="@+id/button1"3         android:layout_width="180dp"4         android:layout_height="64dp"5         android:layout_x="45dp"6         android:layout_y="269dp"7         android:background="@drawable/btn01"8         android:text="Button" />

Button

You can set related properties of the control in XML, including layout_width. The Code implemented in the background is

1 public class mainactivity extends activity {2 3 button mybutton; 4 imagebutton myimg; 5 textview; 6 @ override 7 protected void oncreate (bundle savedinstancestate) {8 super. oncreate (savedinstancestate); 9 setcontentview (R. layout. activity_main); 10 mybutton = (button) findviewbyid (R. id. button1); 11 textview = (textview) findviewbyid (R. id. text1); 12 mybutton. setonclicklistener (New onclicklistener () {13 14 @ override15 public void onclick (view v) {16 // The method stub 17 textview automatically generated by todo. settext ("wo lai le"); 18 toast. maketext (mainactivity. this, "Don't worry about me", 5000 ). show (); 19 }}); 20} 21 22 23 @ override24 public Boolean oncreateoptionsmenu (menu) {25 // inflate the menu; this adds items to the action bar if it is present.26 getmenuinflater (). inflate (R. menu. main, menu); 27 return true; 28} 29 30}

Button event

Here, we use findviewbyid () to obtain the button control and implement the setonclicklistener () method for the control. This method can respond to the button click event. Toast. maketext () to implement the pop-up prompt language.

2. imagebutton Control

The imagebutton control can be used as another extension of the button. It can display icons in drawable.

Register the imagebutton control.

1     <ImageButton2         android:id="@+id/imageButton1"3         android:layout_width="60dp"4         android:layout_height="wrap_content"5         android:layout_x="86dp"6         android:layout_y="145dp"7         android:background="@drawable/easyicon_net_24"8         android:src="@drawable/imgbutton" />

Imagebutton

You can set various attributes of the control during registration.

In this article, we will change the status of the imagebutton control to different images. Different images are displayed when you click the mouse. We need to add an XML document to the drawable folder.

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android" >    <item android:drawable="@drawable/easyicon_net_24" android:state_pressed="false"></item><item android:drawable="@drawable/syicon_net_24" android:state_pressed="true"></item></selector>

This document is used to register different statuses of imagebutton. It is implemented by setting the attributes of Android: state_pressed.