Animation changes in Android animation case 3

Today I'm going to say, about the repetitive use of animations.

First, I'm using Java code here to create a alphaanimation to set the properties of the animation. Words not much to say, direct sticker code

Layout file Code

XML code

1  <LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"2 Xmlns:tools= "Http://schemas.android.com/tools"3 Android:layout_width= "Match_parent"4 Android:layout_height= "Match_parent"5 android:orientation= "vertical"6 Tools:context= "Com.example.Tween_Animation.Alpha_MainActivity" >7 8     <Button9         Android:id= "@+id/button_scale"Ten Android:layout_width= "Fill_parent" One Android:layout_height= "Wrap_content" A Android:text= "@string/button_stringscaleanimation" /> -  -     <LinearLayout the         android:gravity= "Center" - Android:layout_width= "Fill_parent" - Android:layout_height= "Fill_parent" - android:orientation= "vertical" > +  -         <ImageView +             Android:id= "@+id/imageview_scale" A Android:layout_width= "Wrap_content" at Android:layout_height= "Wrap_content" - android:src= "@drawable/ic_launcher" /> -     </LinearLayout> -  - </LinearLayout>

Activity Code

Java code

1  PackageCom.example.Demo3;2 3 ImportCOM.EXAMPLE.ANDROIDANIMATION.R;4 5 Importandroid.app.Activity;6 ImportAndroid.os.Bundle;7 ImportAndroid.view.View;8 ImportAndroid.view.View.OnClickListener;9 Importandroid.view.animation.AlphaAnimation;Ten Importandroid.view.animation.Animation; One ImportAndroid.widget.Button; A ImportAndroid.widget.ImageView; -  -  Public classMainactivityextendsActivityImplementsonclicklistener{ the     PrivateButton Button =NULL; -     PrivateImageView ImageView =NULL; -     protected voidonCreate (Bundle savedinstancestate) { -         Super. OnCreate (savedinstancestate); + Setcontentview (r.layout.activity_main); -button =(Button) Findviewbyid (R.id.button_scale); +ImageView =(ImageView) Findviewbyid (R.id.imageview_scale); AButton.setonclicklistener ( This); at     } - @Override -      Public voidOnClick (View v) { -         //Create a Alphaanimation object--from 0.0 transparency to 1.0 transparency -Animation Animation =NewAlphaanimation (0.0f, 1.0f); -         //Animation duration--3s inAnimation.setduration (3000); -         //animation Repetition number--5 times toAnimation.setrepeatcount (5); +         //Positive Order (RESTART), reverse order (REVERSE) - Animation.setrepeatmode (animation.reverse); the imageview.startanimation (animation); *     } $     Panax Notoginseng}

Animation changes in Android animation case 3