布局文件：viewpage.xml
xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="130dp">
<android.support.v4.view.ViewPager
android:id="@+id/vp_home_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent">
android.support.v4.view.ViewPager>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="20dp" >
<LinearLayout
android:id="@+id/ll"
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="wrap_content">
LinearLayout>
<ImageView
android:id="@+id/iv"
android:src="@drawable/circle_bg"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
RelativeLayout>
RelativeLayout>
LinearLayout>
资源文件：circle.xml
xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<size android:width="10dp"
android:height="10dp"/>
<solid
android:color="#c0c0c0"/>
shape>
资源文件：circle_bg
xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" >
<size
android:width="10dp"
android:height="10dp"/>
<solid
android:color="#ff0000"/>
shape>
实现类：ViewPageActivity.class
public class ViewPageActivity extends Activity implements View.OnClickListener{
private ViewPager vp_home_viewpager;
private LinearLayout ll;
private ImageView iv;
//每次圆点移动的位移
private int move;
//图片资源
private int[] image =new int[]{R.mipmap.ic_launcher,R.mipmap.ic_launcher,
R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher};
private List imagelist;
//判断是否需要自动播放
private boolean running = true;
//实现自动播放
private Handler handler = new Handler(){
//每隔5秒自动实现vp_home_viewpager的position加1
public void handleMessage(Message msg) {
vp_home_viewpager.setCurrentItem(vp_home_viewpager.getCurrentItem()+1);
System.out.println(vp_home_viewpager.getCurrentItem());
if(running){
handler.sendEmptyMessageDelayed(0, 3000);
}
};
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.viewpage);
//handler.sendEmptyMessage(1);
for(int i = 0; i < image.length; i ++){
ImageView imageView = new ImageView(getActivity());
imageView.setImageResource(image[i]);
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
imagelist.add(imageView);
//根据图片的个数去放置相应数量的圆点3
ImageView imageView2 = new ImageView(getActivity());
imageView2.setImageResource(R.drawable.circle);
//因为没有直接改变margin的方法，所以这里使用的LayoutParams来改变leftMargin
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);
if(i > 0){
layoutParams.leftMargin = 20;
}
imageView2.setLayoutParams(layoutParams);
ll.addView(imageView2);
}
//布局加载完成节后运行
iv.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
// TODO Auto-generated method stub
//内部子空间的距离获取
move = ll.getChildAt(1).getLeft()-ll.getChildAt(0).getLeft();
}
});
//添加监听时间
vp_home_viewpager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int arg0) {
// TODO Auto-generated method stub
}
//滑动界面触发，这里控制标记点的改变就可以了
//position第几幅图，offset滑动百分比
@Override
public void onPageScrolled(int position, float offset, int arg2) {
// TODO Auto-generated method stub
System.out.println(position);
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams)iv.getLayoutParams();
if((position+1)%image.length != 0)
layoutParams.leftMargin = (int)((position%image.length)*move+offset*move);
iv.setLayoutParams(layoutParams);
}
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
});
}
//添加适配器
//vp.setPageTransformer(true, arg1);
vp_home_viewpager.setAdapter(new PagerAdapter() {
@Override
public Object instantiateItem(ViewGroup container, int position) {
// TODO Auto-generated method stub
container.addView(imagelist.get((position+image.length)%(image.length)));
//返回滑动到的图片
return imagelist.get((position+image.length)%(image.length));
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
// TODO Auto-generated method stub
//移除一张前图片
container.removeView(imagelist.get((position+image.length)%(image.length)));
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
// TODO Auto-generated method stub
return arg0 == arg1;
}
//使得ViewPager可以无限移动，设置边界为Integer.MAX_VALUE
@Override
public int getCount() {
// TODO Auto-generated method stub
return Integer.MAX_VALUE;
}
});
//插入切换样式，这个随便一个地方拷贝一份即可，可以到官方拷贝
vp_home_viewpager.setPageTransformer(true, new ViewPager.PageTransformer() {
@Override
public void transformPage(View page, float position) {
if(position<-1){
} else if(position<=0){
//第一个页面的变化【0，-1】
page.setPivotX(view.getMeasuredWidth());
page.setPivotY(0);
page.setScaleX(1+position);
} else if(position<=1){
//第二个页面的变化【1,0】
page.setScaleX(0);
page.setPivotX(0);
page.setScaleX(1-position);
} else {
}
}
});
handler.sendEmptyMessageDelayed(0, 3000);
}
}
