Android仿淘宝头条垂直滚动，垂直走马灯，公告

今天看了淘宝头条的的滚动，感觉用户体验非常好，然后在就github上找到了一个，

github:https://github.com/gongwen/MarqueeViewLibrary

效果图如下：

实现方式通过MarqueeFactory来提供各种样式的跑马灯View，支持自定义跑马灯ItemView。

1.首先在build.gradle中增加：
compile ‘com.gongwen:marqueelibrary:1.0.4’
2.MainActivity的xml文件中：

<?xml version="1.0" encoding="utf-8"?>"http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_main"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.example.administrator.marqueeviewdemo.MainActivity">    <com.gongwen.marqueen.MarqueeView        android:id="@+id/marqueeView1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="20dp"        android:background="#88dddddd"/>    <com.gongwen.marqueen.MarqueeView        android:id="@+id/marqueeView2"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="20dp"        android:background="#88dddddd"        app:marqueeAnimDuration="2000"        app:marqueeAnimIn="@anim/right_in"        app:marqueeAnimOut="@anim/left_out"        app:marqueeInterval="2500"/>    <com.gongwen.marqueen.MarqueeView        android:id="@+id/marqueeView3"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="20dp"        android:background="#88dddddd"/>    <com.gongwen.marqueen.MarqueeView        android:id="@+id/marqueeView4"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="20dp"        android:background="#88dddddd"/>    <com.gongwen.marqueen.MarqueeView        android:id="@+id/marqueeView5"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="20dp"        android:background="#88dddddd"/>

3.MainActivity中：

public class MainActivity extends AppCompatActivity {    private MarqueeView marqueeView1, marqueeView2, marqueeView3, marqueeView4, marqueeView5;    private List list;    private WeakHandler mHandler = new WeakHandler();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        list = new ArrayList<>();        list.add("人生若只如初见，何事秋风悲画扇");        list.add("等闲变却故人心，却道故人心易变");        list.add("骊山语罢清宵半，泪雨零铃终不怨");        list.add("何如薄幸锦衣郎，比翼连枝当日愿");        marqueeView1 = (MarqueeView) findViewById(R.id.marqueeView1);        marqueeView2 = (MarqueeView) findViewById(R.id.marqueeView2);        marqueeView3 = (MarqueeView) findViewById(R.id.marqueeView3);        marqueeView4 = (MarqueeView) findViewById(R.id.marqueeView4);        marqueeView5 = (MarqueeView) findViewById(R.id.marqueeView5);        //文字向上翻转        MarqueeFactory marqueeFactory1 = new NoticeMF(this);        //MarqueeView设置Factory        marqueeView1.setMarqueeFactory(marqueeFactory1);        //开始翻转        marqueeView1.startFlipping();        //设置item的监听        marqueeFactory1.setOnItemClickListener(new MarqueeFactory.OnItemClickListener() {            @Override            public void onItemClickListener(MarqueeFactory.ViewHolder holder) {                Toast.makeText(MainActivity.this, holder.data, Toast.LENGTH_SHORT).show();            }        });        //设置数据        marqueeFactory1.setData(list);        //文字向左翻转        final MarqueeFactory marqueeFactory2 = new NoticeMF(this);        //MarqueeView设置Factory        marqueeView2.setMarqueeFactory(marqueeFactory2);        //开始翻转        marqueeView2.startFlipping();        //设置item的监听        marqueeFactory2.setOnItemClickListener(new MarqueeFactory.OnItemClickListener() {            @Override            public void onItemClickListener(MarqueeFactory.ViewHolder holder) {                Toast.makeText(MainActivity.this, holder.data, Toast.LENGTH_SHORT).show();            }        });        //设置数据        marqueeFactory2.setData(list);        //文字向右翻转        MarqueeFactory marqueeFactory3 = new NoticeMF(this);        //设置监听        marqueeFactory3.setOnItemClickListener(new MarqueeFactory.OnItemClickListener() {            @Override            public void onItemClickListener(MarqueeFactory.ViewHolder holder) {                Toast.makeText(MainActivity.this, holder.data, Toast.LENGTH_SHORT).show();            }        });        //设置数据        marqueeFactory3.setData(list);        //MarqueeView设置Factory        marqueeView3.setMarqueeFactory(marqueeFactory3);        //设置进入退出的动画        marqueeView3.setAnimInAndOut(R.anim.left_in, R.anim.right_out);        //动画执行时间        marqueeView3.setAnimDuration(2000);        //翻页时间间隔        marqueeView3.setInterval(2500);        marqueeView3.setAnimateFirstView(true);        //直接调用startFlipping，setAnimateFirstView并没有生效        //marqueeView3.startFlipping();        mHandler.post(new Runnable() {            @Override            public void run() {                //开始翻转                marqueeView3.startFlipping();            }        });        //文字向下翻转        MarqueeFactory marqueeFactory4 = new NoticeMF(this);        //设置监听        marqueeFactory4.setOnItemClickListener(new MarqueeFactory.OnItemClickListener() {            @Override            public void onItemClickListener(MarqueeFactory.ViewHolder holder) {                Toast.makeText(MainActivity.this, holder.data, Toast.LENGTH_SHORT).show();            }        });        //设置数据        marqueeFactory4.setData(list);        //设置进入退出的动画        marqueeView4.setAnimInAndOut(R.anim.top_in, R.anim.bottom_out);        //MarqueeView设置Factory        marqueeView4.setMarqueeFactory(marqueeFactory4);        //开始翻转        marqueeView4.startFlipping();        //设置多行布局        List dataList = new ArrayList<>();        for (int i = 0; i < 5; i++) {            dataList.add(new MyData("标题 " + i, "内容 " + i, "时间 " + i));        }        MarqueeFactory marqueeFactory5 = new ComplexViewMF(this);        marqueeFactory5.setData(dataList);        marqueeView5.setAnimInAndOut(R.anim.top_in, R.anim.bottom_out);        //MarqueeView设置Factory        marqueeView5.setMarqueeFactory(marqueeFactory5);        //开始翻转        marqueeView5.startFlipping();    }    @Override    protected void onStart() {        super.onStart();        marqueeView1.startFlipping();        marqueeView2.startFlipping();        marqueeView3.startFlipping();        marqueeView4.startFlipping();        marqueeView5.startFlipping();    }    @Override    protected void onStop() {        super.onStop();        marqueeView1.stopFlipping();        marqueeView2.stopFlipping();        marqueeView3.stopFlipping();        marqueeView4.stopFlipping();        marqueeView5.stopFlipping();    }}

4.NoticeMF中：

public class NoticeMF extends MarqueeFactory<TextView, String> {    private LayoutInflater inflater;    public NoticeMF(Context mContext) {        super(mContext);        inflater = LayoutInflater.from(mContext);    }    @Override    public TextView generateMarqueeItemView(String data) {        TextView mView = (TextView) inflater.inflate(R.layout.notice_item, null);        mView.setText(data);        return mView;    }}

5.notice_item中：

<?xml version="1.0" encoding="utf-8"?><TextView xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:ellipsize="end"    android:maxLines="1"    android:padding="15dp"    android:textSize="15sp" />

6.MyData中：

public class MyData {    private String title;    private String body;    private String time;    public MyData(String title, String body, String time) {        this.title = title;        this.body = body;        this.time = time;    }    public MyData() {    }    public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }    public String getBody() {        return body;    }    public void setBody(String body) {        this.body = body;    }    public String getTime() {        return time;    }    public void setTime(String time) {        this.time = time;    }}

7.ComplexViewMF中：

public class ComplexViewMF extends MarqueeFactory<RelativeLayout, MyData> {    private LayoutInflater inflater;    public ComplexViewMF(Context mContext) {        super(mContext);        inflater = LayoutInflater.from(mContext);    }    @Override    public RelativeLayout generateMarqueeItemView(MyData data) {        RelativeLayout mView = (RelativeLayout) inflater.inflate(R.layout.complex_view, null);        ((TextView) mView.findViewById(R.id.title)).setText(data.getTitle());        ((TextView) mView.findViewById(R.id.body)).setText(data.getBody());        ((TextView) mView.findViewById(R.id.time)).setText(data.getTime());        return mView;    }}

8.complex_view中：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:padding="10dp">    <TextView        android:id="@+id/title"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="标题" />    <TextView        android:id="@+id/body"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/title"        android:layout_marginTop="10dp"        android:text="副标题" />    <TextView        android:id="@+id/time"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:layout_centerVertical="true"        android:text="2016-12-20 18:18" />RelativeLayout>

9.WeakHandler中：

/* * Copyright (c) 2014 Badoo Trading Limited * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * Portions of documentation in this code are modifications based on work created and * shared by Android Open Source Project and used according to terms described in the * Apache License, Version 2.0 */package com.example.administrator.marqueeviewdemo;import android.os.Handler;import android.os.Looper;import android.os.Message;import android.support.annotation.NonNull;import android.support.annotation.Nullable;import android.support.annotation.VisibleForTesting;import java.lang.ref.WeakReference;import java.util.concurrent.locks.Lock;import java.util.concurrent.locks.ReentrantLock;/** * Memory safer implementation of android.os.Handler *  * Original implementation of Handlers always keeps hard reference to handler in queue of execution. * If you create anonymous handler and post delayed message into it, it will keep all parent class * for that time in memory even if it could be cleaned. * 
 * This implementation is trickier, it will keep WeakReferences to runnables and messages, * and GC could collect them once WeakHandler instance is not referenced any more *  * * @see Handler * * Created by Dmytro Voronkevych on 17/06/2014. */@SuppressWarnings("unused")public class WeakHandler {    private final Handler.Callback mCallback; // hard reference to Callback. We need to keep callback in memory    private final ExecHandler mExec;    private Lock mLock = new ReentrantLock();    @SuppressWarnings("ConstantConditions")    @VisibleForTesting    final ChainedRef mRunnables = new ChainedRef(mLock, null);    /**     * Default constructor associates this handler with the {@link Looper} for the     * current thread.     *     * If this thread does not have a looper, this handler won't be able to receive messages     * so an exception is thrown.     */    public WeakHandler() {        mCallback = null;        mExec = new ExecHandler();    }    /**     * Constructor associates this handler with the {@link Looper} for the     * current thread and takes a callback interface in which you can handle     * messages.     *     * If this thread does not have a looper, this handler won't be able to receive messages     * so an exception is thrown.     *     * @param callback The callback interface in which to handle messages, or null.     */    public WeakHandler(@Nullable Handler.Callback callback) {        mCallback = callback; // Hard referencing body        mExec = new ExecHandler(new WeakReference<>(callback)); // Weak referencing inside ExecHandler    }    /**     * Use the provided {@link Looper} instead of the default one.     *     * @param looper The looper, must not be null.     */    public WeakHandler(@NonNull Looper looper) {        mCallback = null;        mExec = new ExecHandler(looper);    }    /**     * Use the provided {@link Looper} instead of the default one and take a callback     * interface in which to handle messages.     *     * @param looper The looper, must not be null.     * @param callback The callback interface in which to handle messages, or null.     */    public WeakHandler(@NonNull Looper looper, @NonNull Handler.Callback callback) {        mCallback = callback;        mExec = new ExecHandler(looper, new WeakReference<>(callback));    }    /**     * Causes the Runnable r to be added to the message queue.     * The runnable will be run on the thread to which this handler is     * attached.     *     * @param r The Runnable that will be executed.     *     * @return Returns true if the Runnable was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.     */    public final boolean post(@NonNull Runnable r) {        return mExec.post(wrapRunnable(r));    }    /**     * Causes the Runnable r to be added to the message queue, to be run     * at a specific time given by uptimeMillis.     * The time-base is {@link android.os.SystemClock#uptimeMillis}.     * The runnable will be run on the thread to which this handler is attached.     *     * @param r The Runnable that will be executed.     * @param uptimeMillis The absolute time at which the callback should run,     *         using the {@link android.os.SystemClock#uptimeMillis} time-base.     *     * @return Returns true if the Runnable was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.  Note that a     *         result of true does not mean the Runnable will be processed -- if     *         the looper is quit before the delivery time of the message     *         occurs then the message will be dropped.     */    public final boolean postAtTime(@NonNull Runnable r, long uptimeMillis) {        return mExec.postAtTime(wrapRunnable(r), uptimeMillis);    }    /**     * Causes the Runnable r to be added to the message queue, to be run     * at a specific time given by uptimeMillis.     * The time-base is {@link android.os.SystemClock#uptimeMillis}.     * The runnable will be run on the thread to which this handler is attached.     *     * @param r The Runnable that will be executed.     * @param uptimeMillis The absolute time at which the callback should run,     *         using the {@link android.os.SystemClock#uptimeMillis} time-base.     *     * @return Returns true if the Runnable was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.  Note that a     *         result of true does not mean the Runnable will be processed -- if     *         the looper is quit before the delivery time of the message     *         occurs then the message will be dropped.     *     * @see android.os.SystemClock#uptimeMillis     */    public final boolean postAtTime(Runnable r, Object token, long uptimeMillis) {        return mExec.postAtTime(wrapRunnable(r), token, uptimeMillis);    }    /**     * Causes the Runnable r to be added to the message queue, to be run     * after the specified amount of time elapses.     * The runnable will be run on the thread to which this handler     * is attached.     *     * @param r The Runnable that will be executed.     * @param delayMillis The delay (in milliseconds) until the Runnable     *        will be executed.     *     * @return Returns true if the Runnable was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.  Note that a     *         result of true does not mean the Runnable will be processed --     *         if the looper is quit before the delivery time of the message     *         occurs then the message will be dropped.     */    public final boolean postDelayed(Runnable r, long delayMillis) {        return mExec.postDelayed(wrapRunnable(r), delayMillis);    }    /**     * Posts a message to an object that implements Runnable.     * Causes the Runnable r to executed on the next iteration through the     * message queue. The runnable will be run on the thread to which this     * handler is attached.     * This method is only for use in very special circumstances -- it     * can easily starve the message queue, cause ordering problems, or have     * other unexpected side-effects.     *     * @param r The Runnable that will be executed.     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.     */    public final boolean postAtFrontOfQueue(Runnable r) {        return mExec.postAtFrontOfQueue(wrapRunnable(r));    }    /**     * Remove any pending posts of Runnable r that are in the message queue.     */    public final void removeCallbacks(Runnable r) {        final WeakRunnable runnable = mRunnables.remove(r);        if (runnable != null) {            mExec.removeCallbacks(runnable);        }    }    /**     * Remove any pending posts of Runnable r with Object     * token that are in the message queue.  If token is null,     * all callbacks will be removed.     */    public final void removeCallbacks(Runnable r, Object token) {        final WeakRunnable runnable = mRunnables.remove(r);        if (runnable != null) {            mExec.removeCallbacks(runnable, token);        }    }    /**     * Pushes a message onto the end of the message queue after all pending messages     * before the current time. It will be received in callback,     * in the thread attached to this handler.     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.     */    public final boolean sendMessage(Message msg) {        return mExec.sendMessage(msg);    }    /**     * Sends a Message containing only the what value.     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.     */    public final boolean sendEmptyMessage(int what) {        return mExec.sendEmptyMessage(what);    }    /**     * Sends a Message containing only the what value, to be delivered     * after the specified amount of time elapses.     * @see #sendMessageDelayed(Message, long)     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.     */    public final boolean sendEmptyMessageDelayed(int what, long delayMillis) {        return mExec.sendEmptyMessageDelayed(what, delayMillis);    }    /**     * Sends a Message containing only the what value, to be delivered     * at a specific time.     * @see #sendMessageAtTime(Message, long)     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.     */    public final boolean sendEmptyMessageAtTime(int what, long uptimeMillis) {        return mExec.sendEmptyMessageAtTime(what, uptimeMillis);    }    /**     * Enqueue a message into the message queue after all pending messages     * before (current time + delayMillis). You will receive it in     * callback, in the thread attached to this handler.     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.  Note that a     *         result of true does not mean the message will be processed -- if     *         the looper is quit before the delivery time of the message     *         occurs then the message will be dropped.     */    public final boolean sendMessageDelayed(Message msg, long delayMillis) {        return mExec.sendMessageDelayed(msg, delayMillis);    }    /**     * Enqueue a message into the message queue after all pending messages     * before the absolute time (in milliseconds) uptimeMillis.     * The time-base is {@link android.os.SystemClock#uptimeMillis}.     * You will receive it in callback, in the thread attached     * to this handler.     *     * @param uptimeMillis The absolute time at which the message should be     *         delivered, using the     *         {@link android.os.SystemClock#uptimeMillis} time-base.     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.  Note that a     *         result of true does not mean the message will be processed -- if     *         the looper is quit before the delivery time of the message     *         occurs then the message will be dropped.     */    public boolean sendMessageAtTime(Message msg, long uptimeMillis) {        return mExec.sendMessageAtTime(msg, uptimeMillis);    }    /**     * Enqueue a message at the front of the message queue, to be processed on     * the next iteration of the message loop.  You will receive it in     * callback, in the thread attached to this handler.     * This method is only for use in very special circumstances -- it     * can easily starve the message queue, cause ordering problems, or have     * other unexpected side-effects.     *     * @return Returns true if the message was successfully placed in to the     *         message queue.  Returns false on failure, usually because the     *         looper processing the message queue is exiting.     */    public final boolean sendMessageAtFrontOfQueue(Message msg) {        return mExec.sendMessageAtFrontOfQueue(msg);    }    /**     * Remove any pending posts of messages with code 'what' that are in the     * message queue.     */    public final void removeMessages(int what) {        mExec.removeMessages(what);    }    /**     * Remove any pending posts of messages with code 'what' and whose obj is     * 'object' that are in the message queue.  If object is null,     * all messages will be removed.     */    public final void removeMessages(int what, Object object) {        mExec.removeMessages(what, object);    }    /**     * Remove any pending posts of callbacks and sent messages whose     * obj is token.  If token is null,     * all callbacks and messages will be removed.     */    public final void removeCallbacksAndMessages(Object token) {        mExec.removeCallbacksAndMessages(token);    }    /**     * Check if there are any pending posts of messages with code 'what' in     * the message queue.     */    public final boolean hasMessages(int what) {        return mExec.hasMessages(what);    }    /**     * Check if there are any pending posts of messages with code 'what' and     * whose obj is 'object' in the message queue.     */    public final boolean hasMessages(int what, Object object) {        return mExec.hasMessages(what, object);    }    public final Looper getLooper() {        return mExec.getLooper();    }    private WeakRunnable wrapRunnable(@NonNull Runnable r) {        //noinspection ConstantConditions        if (r == null) {            throw new NullPointerException("Runnable can't be null");        }        final ChainedRef hardRef = new ChainedRef(mLock, r);        mRunnables.insertAfter(hardRef);        return hardRef.wrapper;    }    private static class ExecHandler extends Handler {        private final WeakReference mCallback;        ExecHandler() {            mCallback = null;        }        ExecHandler(WeakReference callback) {            mCallback = callback;        }        ExecHandler(Looper looper) {            super(looper);            mCallback = null;        }        ExecHandler(Looper looper, WeakReference callback) {            super(looper);            mCallback = callback;        }        @Override        public void handleMessage(@NonNull Message msg) {            if (mCallback == null) {                return;            }            final Callback callback = mCallback.get();            if (callback == null) { // Already disposed                return;            }            callback.handleMessage(msg);        }    }    static class WeakRunnable implements Runnable {        private final WeakReference mDelegate;        private final WeakReference mReference;        WeakRunnable(WeakReference delegate, WeakReference reference) {            mDelegate = delegate;            mReference = reference;        }        @Override        public void run() {            final Runnable delegate = mDelegate.get();            final ChainedRef reference = mReference.get();            if (reference != null) {                reference.remove();            }            if (delegate != null) {                delegate.run();            }        }    }    static class ChainedRef {        @Nullable        ChainedRef next;        @Nullable        ChainedRef prev;        @NonNull        final Runnable runnable;        @NonNull        final WeakRunnable wrapper;        @NonNull        Lock lock;        public ChainedRef(@NonNull Lock lock, @NonNull Runnable r) {            this.runnable = r;            this.lock = lock;            this.wrapper = new WeakRunnable(new WeakReference<>(r), new WeakReference<>(this));        }        public WeakRunnable remove() {            lock.lock();            try {                if (prev != null) {                    prev.next = next;                }                if (next != null) {                    next.prev = prev;                }                prev = null;                next = null;            } finally {                lock.unlock();            }            return wrapper;        }        public void insertAfter(@NonNull ChainedRef candidate) {            lock.lock();            try {                if (this.next != null) {                    this.next.prev = candidate;                }                candidate.next = this.next;                this.next = candidate;                candidate.prev = this;            } finally {                lock.unlock();            }        }        @Nullable        public WeakRunnable remove(Runnable obj) {            lock.lock();            try {                ChainedRef curr = this.next; // Skipping head                while (curr != null) {                    if (curr.runnable == obj) { // We do comparison exactly how Handler does inside                        return curr.remove();                    }                    curr = curr.next;                }            } finally {                lock.unlock();            }            return null;        }    }}

10.anim文件中：
①bottom_out.xml:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:fromYDelta="0"        android:toYDelta="100%p"/>    <alpha        android:fromAlpha="1.0"        android:toAlpha="0.0"/>set>

②left_in.xml:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:fromXDelta="-100%p"        android:toXDelta="0.0"/>    <alpha        android:fromAlpha="0.0"        android:toAlpha="1.0"/>set>

③left_out.xml:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:fromXDelta="0"        android:toXDelta="-100%p"/>    <alpha        android:fromAlpha="1.0"        android:toAlpha="0.0"/>set>

④right_in.xml:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:fromXDelta="100%p"        android:toXDelta="0"/>    <alpha        android:fromAlpha="0.0"        android:toAlpha="1.0"/>set>

⑤right_out.xml:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:fromXDelta="0"        android:toXDelta="100%p"/>    <alpha        android:fromAlpha="1.0"        android:toAlpha="0.0"/>set>

⑥top_in.xml:

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:fromYDelta="-100%p"        android:toYDelta="0.0"/>    <alpha        android:fromAlpha="0.0"        android:toAlpha="1.0"/>set>

11.demo下载地址：

http://download.csdn.net/detail/afanbaby/9870676

本人菜鸟一个，有什么不对的地方希望大家指出评论，大神勿喷，希望大家一起学习进步！

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