懒得写多少没用的，直接把README贴上来得了。
这是源码github地址

若你对代码实现有啥疑惑欢迎前来咨询。

Billboard

Transition the views as billboard.

See it on Youtube

How to include

dependencies {
    compile 'com.zql.android:billboard:1.1'
}

Usage

1. write the code in layout

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.zql.android.bambooslipdemo.MainActivity">

    <com.zql.android.bambooslip.Billboard
        android:id="@+id/billboard"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:billboard_columns="40"
        app:billboard_rows="1"
        app:billboard_delay="120"
        app:billboard_duration="1200"
        app:billboard_refresh="500"
        app:billboard_orientation="horizontal"
        android:background="@android:color/black"/>

</RelativeLayout>

2. start Billboard

billboard = (Billboard) findViewById(R.id.billboard);
billboard.setCallback(new Billboard.BillboardCallback() {
    @Override
    public Bitmap getBitmap(int count) {
        if(count%5 == 0){
            return BitmapFactory.decodeResource(getResources(),R.mipmap.b1);
        }
        if(count%5 == 1){
            return BitmapFactory.decodeResource(getResources(),R.mipmap.b2);
        }
        if(count%5== 2){
            return BitmapFactory.decodeResource(getResources(),R.mipmap.b3);
        }
        if(count%5 == 3){
            return BitmapFactory.decodeResource(getResources(),R.mipmap.b4);
        }
        if(count%5 == 4){
            return BitmapFactory.decodeResource(getResources(),R.mipmap.b5);
        }
        return null;
    }
    @Override
    public long getDelayFactor(int index, int slipSize,long delay) {
        return index * delay;
    }
});
billboard.go();

api

xml

java

    /**
     * set the callback
     * @param callback {@link BillboardCallback}
     */
    Billboard.setCallback(BillboardCallback callback)

    /**
     * {@link Billboard}'s callback
     */
    public interface BillboardCallback {
        /**
         * get a bitmap to show
         * @param count {0,1,2,3,4,5,6,7,8, ... ,Integer.MAX_VALUE}
         * @return
         */
        Bitmap getBitmap(int count);
    /**
         * custom the delay time of every slip
         * @param index slip index
         * @param delay the time you define in layout xml
         * @param slipSize the size of slip
         * @return delayfactor
         */
        long getDelayFactor(int index,int slipSize,long delay);
    }

    /**
     * start flip
     */
    Billboard.go()

    /**
     * end flip
     */
    Billboard.endFlip()

    /**
     * set timeInterpolator of flip animation
     * @param timeInterpolator
     */
    Billboard.setTimeInterpolator(TimeInterpolator timeInterpolator)

version 1.1

Add a method in BillboardCallback to custom the flip order.

/**
 * custom the delay time of every slip
* @param index slip index
* @param delay the time you define in layout xml
* @param slipSize the size of slip
* @return delayfactor
*/
long getDelayFactor(int index,int slipSize,long delay);

for example:

index * delay make the order from left to right.

@Override
public long getDelayFactor(int index, int slipSize,long delay) {
    return index * delay;
}