User Interface View switch

We have spent half of it before we know what life is.

What's in this lecture: switch control

Example one:

Here is the Res/layout/activity_main.xml layout file:

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android"    xmlns:tools= "http// Schemas.android.com/tools "    android:layout_width=" match_parent "    android:layout_height=" Match_parent " >    <textview        android:layout_width= "wrap_content"        android:layout_height= "Wrap_content        " android:layout_marginleft= "10DP"        android:text= "WiFi settings"        android:textsize= "20sp"/>    <switch        android:id= "@+id/open"        android:layout_width= "wrap_content"        android:layout_height= "wrap_content "         android:layout_alignparentright=" true "        android:layout_marginright=" 10DP "        android:texton=" WiFi on "        android:textoff=" WiFi off in "/></relativelayout>

here is the mainactivity main interface file:

public class Mainactivity extends Activity {private Switch open;protected void OnCreate (Bundle savedinstancestate) {Super . OnCreate (Savedinstancestate); Setcontentview (R.layout.activity_main); open= (Switch) Findviewbyid (r.id.open); o Pen.setoncheckedchangelistener (New Oncheckedchangelistener () {public void oncheckedchanged (Compoundbutton Buttonview, Boolean isChecked) {if (isChecked) {Toast.maketext (mainactivity.this, "open WiFi", Toast.length_long). Show () ;} Else{toast.maketext (Mainactivity.this, "Off WiFi", Toast.length_long). Show ();}});}}

Take your time and enjoy it

User Interface View switch