Android uses animation-list to animate frames by frame

The effect we want to achieve

Prepare the resource file to dropres/drawableIn the file

Light01.png

Light02.png

Light03.png

Writeloading.xmlPut inres/drawable

<!--animation-list: Root tag oneshot: Indicates whether to show only once, set to false will not stop the animation of the animated Android:d Uration represents the animation of the picture time---   <?xml version= "1.0" encoding= "Utf-8"?><animation-list xmlns:android="Http://schemas.android.com/apk/res/android" android:oneshot="false" >        <itemandroid:drawable="@drawable/light01"android:duration="50" />                    <itemandroid:drawable= "@drawable/light02"android:duration=" "/>                    <itemandroid:drawable="@drawable/light03"android:duration= "/>"                </animation-list>

Inactivity_main.xmlLayout file, so write

<?xml version= "1.0" encoding= "Utf-8"?><linearlayout xmlns:android="Http://schemas.android.com/apk/res/android"  Android:layout_width="Fill_parent"android:layout_height="Fill_parent"  Android:orientation="vertical">             <imageview  android:id  = "@+id/main_img_loading"  android:layout_wid th  = "wrap_content"  android:layout_height= "wrap_content"  android:padding  = "5px"  android:src  = "@drawab Le/loading "/>      <button  android:id  = "@+id/main_bt_start"  android:layout_width< /span>= "wrap_content"  android:layout_height  = "wrap_content"  android:padding  = "5px"  android:text  = "start"  />     <button android:id="@+id/main_bt_stop"android:layout_width="Wrap _content "android:layout_height=" Wrap_content "android:padding=" 5px " Android:text="Stop" />                                </linearlayout>

In the activity, write like this.

Bt_start.setonclicklistener (NewOnclicklistener () {@Override       Public void OnClick(View v) {//Get animationdrawableAnimationdrawable = (animationdrawable) animationiv.getdrawable ();//Start animationAnimationdrawable.start ();   }  }); Bt_stop.setonclicklistener (NewOnclicklistener () {@Override       Public void OnClick(View v) {//Get animationdrawableAnimationdrawable = (animationdrawable) animationiv.getdrawable ();//Stop animationAnimationdrawable.stop (); }  });

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Android uses animation-list to animate frames by frame