Android App--imitation American loading loading animation

Objective

Must have used the United States Group client user to the American regiment that loaded villain animation impression is very deep, a cute villain in that desperately run. This animation implementation of the method is actually a lot, today here with frame animation to achieve.

One

Second, the 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 "    android:paddingbottom= "@dimen/activity_vertical_margin"    android:paddingleft= "@dimen/activity_ Horizontal_margin "    android:paddingright=" @dimen/activity_horizontal_margin "    android:paddingtop=" @dimen /activity_vertical_margin "    tools:context=". Mainactivity ">    <imageview        android:id=" @+id/imageview "        android:layout_width=" Fill_parent "        android:layout_height= "fill_parent"        android:onclick= "Start"        android:scaletype= "Fitcenter"        android:src= "@anim/frame"/></relativelayout>

Create a new Anim file, which is stored in the picture to prepare frame animation, the picture can be directly to the United States Regiment of the installation package to be extracted.

<?xml version= "1.0" encoding= "Utf-8"? ><animation-list xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:oneshot=" false ">    <item android:drawable=" @drawable/progress_loading_image_01 " android:duration= "/>    <item android:drawable=" @drawable/progress_loading_image_02 "android:duration= "/></animation-list>"

Main function Code:

Using the Getdrawabel method of image view to get a Animationdrawable object and then call the Start method to start the animation.

public class Mainactivity extends Activity {private ImageView imageview;private animationdrawable ad; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_ Main); ImageView = (ImageView) Findviewbyid (r.id.imageview); ad = (animationdrawable) imageview.getdrawable ();//Get Picture content , strongly converted to animated object}public void Start (View v) {if (ad.isrunning ()) ad.stop (); Ad.start ();//Start Playback}}

Android App--imitation American loading loading animation