android引导页 旋转的效果

一个类似小车一直在往前开的旋转式动画效果。

package com.devdiv.test.ui_test_viewpager;import java.util.ArrayList;import android.app.Activity;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Matrix;import android.graphics.Paint;import android.os.Bundle;import android.os.Parcelable;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.ViewGroup.LayoutParams;import android.view.animation.AnimationSet;import android.view.animation.RotateAnimation;import android.view.animation.ScaleAnimation;import android.view.Window;import android.widget.ImageView;public class UI_Test_ViewPagerActivity extends Activity {private MyViewPager mViewPager;private ArrayList<View> mPageViews;private ImageView mImageView;private ImageView[] mImageViews;private ViewGroup mainViewGroup;private ViewGroup indicatorViewGroup;LayoutInflater mInflater;private ImageView iv_1;private ImageView iv_2;private ImageView iv_3;private Bitmap bmp;private Bitmap bmp2;private Bitmap bmp3;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);               requestWindowFeature(Window.FEATURE_NO_TITLE);                mInflater = getLayoutInflater();                mPageViews = new ArrayList<View>();        View view1 = mInflater.inflate(R.layout.item01, null);        View view2 = mInflater.inflate(R.layout.item02, null);        View view3 = mInflater.inflate(R.layout.item03, null);        mPageViews.add(view1);        mPageViews.add(view2);        mPageViews.add(view3);                iv_1 = (ImageView) view1.findViewById(R.id.iv_1);        iv_2 = (ImageView) view2.findViewById(R.id.iv_2);        iv_3 = (ImageView) view3.findViewById(R.id.iv_3);        mPageViews.add(mInflater.inflate(R.layout.item04, null));        mPageViews.add(mInflater.inflate(R.layout.item05, null));        mPageViews.add(mInflater.inflate(R.layout.item06, null));                mImageViews = new ImageView[mPageViews.size()];                mainViewGroup = (ViewGroup) mInflater.inflate(R.layout.main, null);                mViewPager = (MyViewPager) mainViewGroup.findViewById(R.id.myviewpager);        indicatorViewGroup = (ViewGroup) mainViewGroup.findViewById(R.id.mybottomviewgroup);        for (int i = 0; i < mImageViews.length; i++) {        mImageView = new ImageView(UI_Test_ViewPagerActivity.this);          mImageView.setLayoutParams(new LayoutParams(20,20));          mImageView.setPadding(20, 0, 20, 0);                  if (i == 0) {        mImageView.setBackgroundResource(R.drawable.page_indicator_focused);} else {mImageView.setBackgroundResource(R.drawable.page_indicator);}        mImageViews[i] = mImageView;                indicatorViewGroup.addView(mImageViews[i]);}                setContentView(mainViewGroup);                        mViewPager.setAdapter(new MyPagerAdapter());        mViewPager.setOnPageChangeListener(new OnPageChangeListener() {@Overridepublic void onPageSelected(int arg0) {// TODO Auto-generated method stubfor (int i = 0; i < mImageViews.length; i++) {if(i == arg0) {mImageViews[i].setBackgroundResource(R.drawable.page_indicator_focused);} else {mImageViews[i].setBackgroundResource(R.drawable.page_indicator);}}}@Overridepublic void onPageScrolled(int position, float arg1, int arg2) {    Log.e("onPageScrolled", "arg1:"+arg1 +"|arg2:" + arg2);    if (position == 0){        rotate(iv_1, -(90*arg1), bmp);        rotate(iv_2, 90 -(90*arg1), bmp2);    }else if (position == 1){        rotate(iv_2, -(90*arg1), bmp2);        rotate(iv_3, 90 -(90*arg1), bmp3);    }}@Overridepublic void onPageScrollStateChanged(int arg0) {    }});                bmp = BitmapFactory.decodeResource(getResources(), R.drawable.lp1);        bmp2 = BitmapFactory.decodeResource(getResources(), R.drawable.lp2);        bmp3 = BitmapFactory.decodeResource(getResources(), R.drawable.lp3);        iv_1.setImageBitmap(bmp);        iv_2.setImageBitmap(bmp2);        iv_3.setImageBitmap(bmp3);        rotate(iv_2, 90, bmp2);        rotate(iv_3, 90, bmp3);    }        public void rotate(ImageView iv, float degree, Bitmap bmp){        Matrix matrix = new Matrix();        //选择角度 饶(0,0)点选择 正数顺时针 负数逆时针 中心旋转        matrix.setRotate(degree ,bmp.getWidth()/2,bmp.getHeight());        Bitmap createBmp = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), bmp.getConfig());        Canvas canvas = new Canvas(createBmp);        Paint paint = new Paint();        canvas.drawBitmap(bmp, matrix, paint);        iv.setImageBitmap(createBmp);    }        class MyPagerAdapter extends PagerAdapter {    @Override          public int getCount() {              return mPageViews.size();          }            @Override          public boolean isViewFromObject(View arg0, Object arg1) {              return arg0 == arg1;          }            @Override          public int getItemPosition(Object object) {              return super.getItemPosition(object);          }            @Override          public void destroyItem(View arg0, int arg1, Object arg2) {              ((ViewPager) arg0).removeView(mPageViews.get(arg1));          }            @Override          public Object instantiateItem(View arg0, int arg1) {              ((ViewPager) arg0).addView(mPageViews.get(arg1));              return mPageViews.get(arg1);          }            @Override          public void restoreState(Parcelable arg0, ClassLoader arg1) {            }            @Override          public Parcelable saveState() {              return null;          }            @Override          public void startUpdate(View arg0) {            }            @Override          public void finishUpdate(View arg0) {            }         }    }

Demo源码 http://download.csdn.net/detail/wuhongqi0012/8511877