android进阶篇之引导页系列之viewpager实现Animation动画效果
来源：互联网 发布：淘宝运动鞋店 虎扑 编辑：程序博客网 时间：2024/06/03 17:04
看到一个demo发现很不错，于是就借来看了下，感觉很不错。
第一个的动画是油表在动
第二个右边道路上的汽车在走
第三个车子在开，白云在飘
第四个油桶在倒钱，
第五个是也是车子在开，白云在飘
代码分析：引用之前的ViewPager翻页框架，分别对每一页添加动画，源代码会在下面给出链接。
import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Context; import android.graphics.drawable.AnimationDrawable; import android.graphics.drawable.BitmapDrawable; import android.os.Bundle; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.util.DisplayMetrics; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.animation.AccelerateDecelerateInterpolator; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.view.animation.LinearInterpolator; import android.view.animation.RotateAnimation; import android.view.animation.ScaleAnimation; import android.view.animation.TranslateAnimation; import android.widget.ImageView; import android.widget.Toast; public class MainActivity extends Activity implements ViewPager.OnPageChangeListener { public Context context ; public static int screenW, screenH; private static final int VIEW_NO_1 = 0; private static final int VIEW_NO_2 = 1; private static final int VIEW_NO_3 = 2; private static final int VIEW_NO_4 = 3; private static final int VIEW_NO_5 = 4; // 第1页的资源,坐标 static ImageView mOnePointer; // 第2页的资源,坐标 static ImageView mTwoCar; // 第3页的资源,坐标 static ImageView mThreeCloudFast; static ImageView mThreeCloudSlow; static ImageView mThreeCarShadow; static ImageView mThreeCar; // 第4页的资源,坐标 static ImageView mFourPig; static ImageView mFourPigShadow; static ImageView mFourCoin; static ImageView mFourCoinPack; // 第5页的资源,坐标 static ImageView mFiveCar; static ImageView mFiveCarShadow; static ImageView mFiveCloudFast; static ImageView mFiveCloudSlow; private int preIndex = 0; private ViewPager mPager; private MyViewPagerAdapter mPagerAdapter; List<View> list = new ArrayList<View>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); context = this ; DisplayMetrics metric = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metric); screenW = metric.widthPixels; // 屏幕宽度（像素） screenH = metric.heightPixels; // 屏幕高度（像素） LayoutInflater inflater = LayoutInflater.from(this); View view0 = inflater.inflate(R.layout.guide_fragment_main_1, null, false); mOnePointer = (ImageView) view0.findViewById(R.id.one_pointer); View view1 = inflater.inflate(R.layout.guide_fragment_main_2, null, false); View view2 = inflater.inflate(R.layout.guide_fragment_main_3, null, false); View view3 = inflater.inflate(R.layout.guide_fragment_main_4, null, false); View view4 = inflater.inflate(R.layout.guide_fragment_main_5, null, false); list.add(view0); list.add(view1); list.add(view2); list.add(view3); list.add(view4); mPager = (ViewPager) findViewById(R.id.container); mPagerAdapter = new MyViewPagerAdapter(list); mPager.setAdapter(mPagerAdapter); mPager.setOnPageChangeListener(this); mPager.setPageTransformer(true, new transforms.StackTransformer()); animal(VIEW_NO_1); } public class MyViewPagerAdapter extends PagerAdapter { private List<View> mListViews; public MyViewPagerAdapter(List<View> mListViews) { this.mListViews = mListViews;// 构造方法，参数是我们的页卡，这样比较方便。 } @Override public void destroyItem(ViewGroup container, int position, Object object) { View view = mListViews.get(position) ; BitmapDrawable drawable = (BitmapDrawable)view.getBackground() ; if (drawable != null) { drawable.getBitmap().recycle() ; } switch (position) { case VIEW_NO_1: break; case VIEW_NO_2: // mTwoCar.getBackground().setCallback(null) ; break; case VIEW_NO_3: BitmapDrawable d3_1 = (BitmapDrawable)mThreeCar.getBackground() ; if (d3_1 != null) { d3_1.getBitmap().recycle() ; } BitmapDrawable d3_2 = (BitmapDrawable)mThreeCarShadow.getBackground() ; if (d3_2 != null) { d3_2.getBitmap().recycle() ; } break; case VIEW_NO_4: // mFourCoin.getBackground().setCallback(null) ; BitmapDrawable d4_1 = (BitmapDrawable)mFourCoinPack.getBackground() ; if (d4_1 != null) { d4_1.getBitmap().recycle() ; } BitmapDrawable d4_2 = (BitmapDrawable)mFourPig.getBackground() ; if (d4_2 != null) { d4_2.getBitmap().recycle() ; } BitmapDrawable d4_3 = (BitmapDrawable)mFourPigShadow.getBackground() ; if (d4_3 != null) { d4_3.getBitmap().recycle() ; } break; case VIEW_NO_5: BitmapDrawable d5_1 = (BitmapDrawable)mFiveCar.getBackground() ; if (d5_1 != null) { d5_1.getBitmap().recycle() ; } BitmapDrawable d5_2 = (BitmapDrawable)mFiveCarShadow.getBackground() ; if (d5_2 != null) { d5_2.getBitmap().recycle() ; } break; default: break; } container.removeView(mListViews.get(position));// 删除页卡 } @SuppressWarnings("deprecation") @Override public Object instantiateItem(ViewGroup container, int position) { // 这个方法用来实例化页卡 View view = mListViews.get(position) ; container.addView(view, 0);// 添加页卡 switch (position) { case VIEW_NO_1: mOnePointer = (ImageView) view.findViewById(R.id.one_pointer); view.setBackgroundDrawable( ImageCompress .getInstance() .getCompressFromId(context, R.drawable.guide_one_bg, screenW, screenH)) ; break; case VIEW_NO_2: mTwoCar = (ImageView) view.findViewById(R.id.two_car); mTwoCar.setBackgroundResource(R.anim.guide_two_car_frame_anim); view.setBackgroundDrawable( ImageCompress .getInstance() .getCompressFromId(context, R.drawable.guide_two_bg, screenW, screenH)) ; break; case VIEW_NO_3: mThreeCar = (ImageView) view.findViewById(R.id.three_car); mThreeCarShadow = (ImageView) view.findViewById(R.id.three_car_shadow); mThreeCloudFast = (ImageView) view.findViewById(R.id.three_cloud_fast); mThreeCloudSlow = (ImageView) view.findViewById(R.id.three_cloud_slow); view.setBackgroundDrawable( ImageCompress .getInstance() .getCompressFromId(context, R.drawable.guide_three_bg, screenW, screenH)) ; break; case VIEW_NO_4: mFourCoinPack = (ImageView) view.findViewById(R.id.four_pack); mFourCoin = (ImageView) view.findViewById(R.id.four_coin); mFourCoin.setBackgroundResource(R.anim.guide_four_coin_frame_anim); mFourPig = (ImageView) view.findViewById(R.id.four_pig); mFourPigShadow = (ImageView) view.findViewById(R.id.four_pig_shadow); view.setBackgroundDrawable( ImageCompress .getInstance() .getCompressFromId(context, R.drawable.guide_four_bg, screenW, screenH)) ; break; case VIEW_NO_5: mFiveCar = (ImageView) view.findViewById(R.id.five_car); mFiveCarShadow = (ImageView) view.findViewById(R.id.five_car_shadow); mFiveCloudFast = (ImageView) view.findViewById(R.id.five_cloud_fast); mFiveCloudSlow = (ImageView) view.findViewById(R.id.five_cloud_slow); view.setOnTouchListener(mOnTouchListener); view.setBackgroundDrawable( ImageCompress .getInstance() .getCompressFromId(context, R.drawable.guide_five_bg, screenW, screenH)) ; break; default: break; } return mListViews.get(position); } @Override public int getCount() { return mListViews.size();// 返回页卡的数量 } @Override public boolean isViewFromObject(View arg0, Object arg1) { return arg0 == arg1;// 官方提示这样写 } } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { animal(position); } @Override public void onPageScrollStateChanged(int state) { } private void animal(int position) { try { switch (position) { case VIEW_NO_1: AccelerateDecelerateInterpolator interpolator = new AccelerateDecelerateInterpolator(); Animation animation1_1 = AnimationUtils.loadAnimation(this, R.anim.guide_one_pointer_ratate); animation1_1.setFillAfter(true); animation1_1.setInterpolator(interpolator); mOnePointer.clearAnimation(); mOnePointer.startAnimation(animation1_1); break; case VIEW_NO_2: AnimationDrawable animation2_1 = (AnimationDrawable) mTwoCar .getBackground(); // animation2_1.unscheduleSelf(null); // 重新将Frame动画设置到第-1帧，也就是重新开始 animation2_1.setVisible(false, true) ; animation2_1.start(); break; case VIEW_NO_3: LinearInterpolator linearInterpolator = new LinearInterpolator(); Animation animation3_1 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation3_1.setDuration(25000); animation3_1.setInterpolator(linearInterpolator); mThreeCloudFast.clearAnimation(); mThreeCloudFast.startAnimation(animation3_1); Animation animation3_2 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation3_2.setDuration(35000); animation3_2.setInterpolator(linearInterpolator); mThreeCloudSlow.clearAnimation(); mThreeCloudSlow.startAnimation(animation3_2); Animation animation3_3 = new ScaleAnimation(1.0f, 1.0f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1.0f); animation3_3.setRepeatCount(-1); animation3_3.setRepeatMode(Animation.REVERSE); animation3_3.setDuration(500); animation3_3.setInterpolator(linearInterpolator); mThreeCar.clearAnimation(); mThreeCar.startAnimation(animation3_3); Animation animation3_4 = new ScaleAnimation(1.0f, 1.05f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); animation3_4.setRepeatCount(-1); animation3_4.setDuration(500); animation3_4.setRepeatMode(Animation.REVERSE); animation3_4.setInterpolator(linearInterpolator); mThreeCarShadow.clearAnimation(); mThreeCarShadow.startAnimation(animation3_4); break; case VIEW_NO_4: // 钱桶的动画 Animation animation4_1 = new RotateAnimation(0, 5, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_PARENT, 0.5f); animation4_1.setRepeatCount(-1); animation4_1.setDuration(300); mFourCoinPack.clearAnimation(); mFourCoinPack.startAnimation(animation4_1); // 硬币掉落的动画 AnimationDrawable animation4_2 = (AnimationDrawable) mFourCoin .getBackground(); animation4_2.start(); // 小猪的动画 Animation animation4_3 = new ScaleAnimation(1.0f, 1.0f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1.0f); animation4_3.setRepeatCount(-1); animation4_3.setDuration(500); mFourPig.clearAnimation(); mFourPig.startAnimation(animation4_3); // 小猪影子的动画 Animation animation4_4 = new ScaleAnimation(1.0f, 1.05f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0.75f, Animation.RELATIVE_TO_SELF, 0.95f); animation4_4.setRepeatCount(-1); animation4_4.setDuration(500); mFourPigShadow.clearAnimation(); mFourPigShadow.startAnimation(animation4_4); break; case VIEW_NO_5: LinearInterpolator linearInterpolator2 = new LinearInterpolator(); Animation animation5_1 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation5_1.setDuration(25000); animation5_1.setInterpolator(linearInterpolator2); mFiveCloudFast.clearAnimation(); mFiveCloudFast.startAnimation(animation5_1); Animation animation5_2 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation5_2.setDuration(35000); animation5_2.setInterpolator(linearInterpolator2); mFiveCloudSlow.clearAnimation(); mFiveCloudSlow.startAnimation(animation5_2); Animation animation5_3 = new ScaleAnimation(1.0f, 1.0f, 1.0f, 1.1f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1.0f); animation5_3.setRepeatCount(-1); animation5_3.setDuration(500); animation5_3.setRepeatMode(Animation.REVERSE); mFiveCar.clearAnimation(); mFiveCar.startAnimation(animation5_3); Animation animation5_4 = new ScaleAnimation(1.0f, 1.1f, 1.0f, 1.1f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); animation5_4.setRepeatCount(-1); animation5_4.setDuration(500); animation5_4.setRepeatMode(Animation.REVERSE); mFiveCarShadow.clearAnimation(); mFiveCarShadow.startAnimation(animation5_4); break; } preIndex = position; } catch (Exception e) { finish() ; } } View.OnTouchListener mOnTouchListener = new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (preIndex == 4) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: x1 = (int) event.getX(); Toast.makeText(MainActivity.this, "X1--->" + x1, Toast.LENGTH_SHORT).show(); break; case MotionEvent.ACTION_MOVE: x2 = (int) event.getX(); Toast.makeText(MainActivity.this, "X2--->" + x2, Toast.LENGTH_SHORT).show(); if ((x2 - x1) < 0) { finish(); } // Toast.makeText(MainActivity.this, "<--->" + (int) // event.getX(), Toast.LENGTH_SHORT).show() ; break; case MotionEvent.ACTION_UP: x2 = (int) event.getX(); Toast.makeText(MainActivity.this, "X2--->" + x2, Toast.LENGTH_SHORT).show(); if ((x2 - x1) < 0) { finish(); } break; default: break; } } return true; } }; int x1 = 0, x2 = 0; }第一步：在onCreate函数中初始化每一个子view，然后添加翻页的监听和翻页的动画效果<注意：这是翻页效果，不是子view中的对象的动画效果>
public Context context ; public static int screenW, screenH; private static final int VIEW_NO_1 = 0; private static final int VIEW_NO_2 = 1; private static final int VIEW_NO_3 = 2; private static final int VIEW_NO_4 = 3; private static final int VIEW_NO_5 = 4; // 第1页的资源,坐标 static ImageView mOnePointer; // 第2页的资源,坐标 static ImageView mTwoCar; // 第3页的资源,坐标 static ImageView mThreeCloudFast; static ImageView mThreeCloudSlow; static ImageView mThreeCarShadow; static ImageView mThreeCar; // 第4页的资源,坐标 static ImageView mFourPig; static ImageView mFourPigShadow; static ImageView mFourCoin; static ImageView mFourCoinPack; // 第5页的资源,坐标 static ImageView mFiveCar; static ImageView mFiveCarShadow; static ImageView mFiveCloudFast; static ImageView mFiveCloudSlow; private int preIndex = 0; private ViewPager mPager; private MyViewPagerAdapter mPagerAdapter; List<View> list = new ArrayList<View>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); context = this ; DisplayMetrics metric = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metric); screenW = metric.widthPixels; // 屏幕宽度（像素） screenH = metric.heightPixels; // 屏幕高度（像素） LayoutInflater inflater = LayoutInflater.from(this); View view0 = inflater.inflate(R.layout.guide_fragment_main_1, null, false); mOnePointer = (ImageView) view0.findViewById(R.id.one_pointer); View view1 = inflater.inflate(R.layout.guide_fragment_main_2, null, false); View view2 = inflater.inflate(R.layout.guide_fragment_main_3, null, false); View view3 = inflater.inflate(R.layout.guide_fragment_main_4, null, false); View view4 = inflater.inflate(R.layout.guide_fragment_main_5, null, false); list.add(view0); list.add(view1); list.add(view2); list.add(view3); list.add(view4); mPager = (ViewPager) findViewById(R.id.container); mPagerAdapter = new MyViewPagerAdapter(list); mPager.setAdapter(mPagerAdapter); mPager.setOnPageChangeListener(this);//设置翻页的监听 mPager.setPageTransformer(true, new transforms.StackTransformer());//这里设置为堆栈式的翻页效果 animal(VIEW_NO_1);//这里是为了第一次进入应用时，作出第一页的动画 }第二步：添加翻页监听后，处理翻页的回调函数
@Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { animal(position);//播放第position页的动画 }第三步：实现animal函数private void animal(int position) { try { switch (position) { case VIEW_NO_1: AccelerateDecelerateInterpolator interpolator = new AccelerateDecelerateInterpolator(); Animation animation1_1 = AnimationUtils.loadAnimation(this, R.anim.guide_one_pointer_ratate); animation1_1.setFillAfter(true); animation1_1.setInterpolator(interpolator); mOnePointer.clearAnimation(); mOnePointer.startAnimation(animation1_1); break; case VIEW_NO_2: AnimationDrawable animation2_1 = (AnimationDrawable) mTwoCar .getBackground(); / animation2_1.unscheduleSelf(null); // 重新将Frame动画设置到第-1帧，也就是重新开始 animation2_1.setVisible(false, true) ; animation2_1.start(); break; case VIEW_NO_3: LinearInterpolator linearInterpolator = new LinearInterpolator(); Animation animation3_1 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation3_1.setDuration(25000); animation3_1.setInterpolator(linearInterpolator); mThreeCloudFast.clearAnimation(); mThreeCloudFast.startAnimation(animation3_1); Animation animation3_2 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation3_2.setDuration(35000); animation3_2.setInterpolator(linearInterpolator); mThreeCloudSlow.clearAnimation(); mThreeCloudSlow.startAnimation(animation3_2); Animation animation3_3 = new ScaleAnimation(1.0f, 1.0f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1.0f); animation3_3.setRepeatCount(-1); animation3_3.setRepeatMode(Animation.REVERSE); animation3_3.setDuration(500); animation3_3.setInterpolator(linearInterpolator); mThreeCar.clearAnimation(); mThreeCar.startAnimation(animation3_3); Animation animation3_4 = new ScaleAnimation(1.0f, 1.05f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); animation3_4.setRepeatCount(-1); animation3_4.setDuration(500); animation3_4.setRepeatMode(Animation.REVERSE); animation3_4.setInterpolator(linearInterpolator); mThreeCarShadow.clearAnimation(); mThreeCarShadow.startAnimation(animation3_4); break; case VIEW_NO_4: // 钱桶的动画 Animation animation4_1 = new RotateAnimation(0, 5, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_PARENT, 0.5f); animation4_1.setRepeatCount(-1); animation4_1.setDuration(300); mFourCoinPack.clearAnimation(); mFourCoinPack.startAnimation(animation4_1); // 硬币掉落的动画 AnimationDrawable animation4_2 = (AnimationDrawable) mFourCoin .getBackground(); animation4_2.start(); // 小猪的动画 Animation animation4_3 = new ScaleAnimation(1.0f, 1.0f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1.0f); animation4_3.setRepeatCount(-1); animation4_3.setDuration(500); mFourPig.clearAnimation(); mFourPig.startAnimation(animation4_3); // 小猪影子的动画 Animation animation4_4 = new ScaleAnimation(1.0f, 1.05f, 1.0f, 1.05f, Animation.RELATIVE_TO_SELF, 0.75f, Animation.RELATIVE_TO_SELF, 0.95f); animation4_4.setRepeatCount(-1); animation4_4.setDuration(500); mFourPigShadow.clearAnimation(); mFourPigShadow.startAnimation(animation4_4); break; case VIEW_NO_5: LinearInterpolator linearInterpolator2 = new LinearInterpolator(); Animation animation5_1 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation5_1.setDuration(25000); animation5_1.setInterpolator(linearInterpolator2); mFiveCloudFast.clearAnimation(); mFiveCloudFast.startAnimation(animation5_1); Animation animation5_2 = new TranslateAnimation( Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); animation5_2.setDuration(35000); animation5_2.setInterpolator(linearInterpolator2); mFiveCloudSlow.clearAnimation(); mFiveCloudSlow.startAnimation(animation5_2); Animation animation5_3 = new ScaleAnimation(1.0f, 1.0f, 1.0f, 1.1f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1.0f); animation5_3.setRepeatCount(-1); animation5_3.setDuration(500); animation5_3.setRepeatMode(Animation.REVERSE); mFiveCar.clearAnimation(); mFiveCar.startAnimation(animation5_3); Animation animation5_4 = new ScaleAnimation(1.0f, 1.1f, 1.0f, 1.1f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); animation5_4.setRepeatCount(-1); animation5_4.setDuration(500); animation5_4.setRepeatMode(Animation.REVERSE); mFiveCarShadow.clearAnimation(); mFiveCarShadow.startAnimation(animation5_4); break; } preIndex = position; } catch (Exception e) { finish() ; } }里面都是对Animation的叠加使用，只要理解了Android的Animation这段代码应该都可以看得懂，
，实在是看不懂可以参与讨论哦最后一步：实现PagerAdapter，因为翻页动画加入项目中需要很高的效率性，如果效率不高，很容易导致资源占用过多，所以这里分别对destroyItem和instantiateItem函数进行了高效率的重写。ViewPager的机制是只加载<假如当前页是B>A、B和C页，所以对不用的页面会调用destroyItem函数，所以都在这里做回收操作，因为有页面会被回收，所以如果在对象栈中找不到想去的下一页资源ViewPager的PagerAdapter就会调用instantiateItem函数来创建view，所以需要在这里分别创建子view。
做完之后运行到手机上看，你会发现挺好看的，强调一下这个是没有做优化处理的，欢迎讨论。
转载于http://blog.csdn.net/ye_scofield/article/details/44831357，希望此楼主勿喷。
demo下载链接：http://download.csdn.net/detail/haidaoduozhu/9719570
0 0
- android进阶篇之引导页系列之viewpager实现Animation动画效果
- Android进阶篇之引导页系列之ViewPager实现Animation动画引导页
- Android进阶篇之引导页系列之ViewPager实现Animation动画引导页
- Android进阶篇之引导页系列之ViewPager实现Animation动画引导页
- Android进阶篇之引导页系列之ViewPager静态引导
- Android进阶篇之引导页系列之强大的SurfaceView实现动画引导页（1）
- Android进阶篇之引导页系列之强大的SurfaceView实现动画引导页（2）
- Android进阶篇之引导页系列之强大的SurfaceView实现动画引导页（1）
- Android进阶篇之引导页系列之强大的SurfaceView实现动画引导页（2）
- Android进阶篇之引导页系列之强大的SurfaceView实现动画引导页（1）
- Android进阶篇之引导页系列之强大的SurfaceView实现动画引导页（2）
- Android动画效果之Property Animation进阶（属性动画）
- Android动画效果之Property Animation进阶（属性动画）
- android动画效果之Property Animation进阶（属性动画）
- android UI进阶之用ViewPager实现欢迎引导页面
- android UI进阶之用ViewPager实现欢迎引导页面
- android UI进阶之用ViewPager实现欢迎引导页面
- android UI进阶之用ViewPager实现欢迎引导页面
- 5.3.1
- KGDB环境搭建及调试
- iOS10---新特性以及适配点
- win7下mysql5.6遇到Access denied for user 'root'@'localhost'(using password :NO/YES)
- java对象——new对象的理解
- android进阶篇之引导页系列之viewpager实现Animation动画效果
- TensorFlow图片分类示例
- PostgreSQL 锁等待跟踪
- tomcat中get请求中文乱码
- Docker dubbo 服务注册
- Http下载文件，文件名中文乱码问题
- PHP获取系统时间慢几个小时解决方法（附date函数字符）
- Codeforces Beta Round #23 E. Tree(DP+高精度)
- 【Windows】nginx+iis实现负载均衡
