public class MainActivity extendsActivity {//ViewPager
privateViewPager viewpager;//幻灯片图片资源
private int [] imgArray={R.drawable.view1,R.drawable.view2,R.drawable.view3};//图片数组
private ArrayListviewlist;privateImageView imageView;//点点
privateViewGroup pointgroup;privateImageView[] pointarr;
@Overrideprotected voidonCreate(Bundle savedInstanceState) {//TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_viewpage);//初始化
viewpager =(ViewPager) findViewById(R.id.viewpager);
pointgroup=(ViewGroup) findViewById(R.id.pointgroup);
viewlist= new ArrayList();//将图片装载到数组
for(int i=0;i
imageView=new ImageView(this);//设置图片
imageView.setBackgroundResource(imgArray[i]);//设置图片id
imageView.setId(imgArray[i]);
viewlist.add(imageView);
}
//传递上下文
Context context = MainActivity.this;
MyPageAdapter pageadapter2=newMyPageAdapter(viewlist,context);
viewpager.setAdapter(pageadapter2);//点数组
pointarr=newImageView[imgArray.length];//把点加入布局，和设置点状态
for(int i=0;i
ImageView point=new ImageView(this);//设置点大小
point.setLayoutParams(new LayoutParams(10,10));
pointarr[i]=point;//状态处理
if(i==0){
pointarr[i].setBackgroundResource(R.drawable.viewpage_point_focused);
}else{
pointarr[i].setBackgroundResource(R.drawable.viewpage_point_unfocused);
}//加入到容器
pointgroup.addView(pointarr[i]);
}//viewpager设置监听器
pointChangeListener pointListener=newpointChangeListener();
viewpager.setOnPageChangeListener(pointListener);//点击图片
}
public class pointChangeListener implementsOnPageChangeListener{
@Overridepublic void onPageScrollStateChanged(intarg0) {//TODO Auto-generated method stub
}
@Overridepublic void onPageScrolled(int arg0, float arg1, intarg2) {//TODO Auto-generated method stub
}
@Override//比如切换到第二张图片，相应索引的点为选择状态，其他为未选中状态
public void onPageSelected(intarg0) {//TODO Auto-generated method stub
for(int i=0;i
pointarr[arg0].setBackgroundResource(R.drawable.viewpage_point_focused);if(arg0 !=i){
pointarr[i].setBackgroundResource(R.drawable.viewpage_point_unfocused);
}
}
}
}
}