android transition

问题:

I am using the following code to set an animation between 2 images for my SplashScreen:

public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);      setContentView(R.layout.splash);       // Show A Transitions for Splash image here.     TransitionDrawable transition = (TransitionDrawable) getResources()             .getDrawable(R.drawable.splash_animation);      //Set interval for the transition between two image.     transition.startTransition(5000);      //Fetch imageView from your layout and apply transition on the same.      ImageView imageView= (ImageView) findViewById(R.id.splash_image);     imageView.setImageDrawable(transition); } 

My splash.xml is :

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical" >      <ImageView         android:scaleType="fitXY"         android:id="@+id/splash_image"         android:layout_width="fill_parent"         android:layout_height="fill_parent"         android:src="@drawable/img_1" /> </RelativeLayout> 

My splash_animation.xml file is :

<?xml version="1.0" encoding="utf-8"?> <transition xmlns:android="http://schemas.android.com/apk/res/android">   <item android:drawable="@drawable/img_1"></item>   <item android:drawable="@drawable/img_2"></item> </transition> 

The transition is working fine but I wanted to know if it is possible to create it for 3 images as well. I tried adding a third image in splash_animation but the transition is only done for the first image. How can I achieve it for as many images as I want?

回答1:

Put the array of the TransitionDrawable.

List<TransitionDrawable>array = new ArrayList<TransitionDrawable>();  TransitionDrawable transition1 = (TransitionDrawable) getResources()             .getDrawable(R.drawable.splash_animation1); // first,second image  TransitionDrawable transition2 = (TransitionDrawable) getResources()             .getDrawable(R.drawable.splash_animation2); // third,fourth image  array.add(transition1); array.add(transition2); // call array for(TransitionDrawable transition :array){ transition.start(5000); }  ImageView imageView= (ImageView) findViewById(R.id.splash_image);  imageView.setImageDrawable(transition[0]); // if transition[0] is finished  setImageDrawable(transition[1]); 

文章来源: android transition