ViewPager无限轮播加xml小圆点

来源：互联网发布：h3c 端口镜像编辑：程序博客网时间：2024/04/29 22:11

Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {
if (msg.what == 0) {
int currentItem = viewPager.getCurrentItem();
currentItem++;
viewPager.setCurrentItem(currentItem);
setmove();
}
};
};
//添加集合
imageViews_list = new ArrayList<ImageView>();
in_list = new ArrayList<Integer>();
in_list.add(R.drawable.bb1);
in_list.add(R.drawable.bb2);
in_list.add(R.drawable.bb3);
//设置适配器
viewPager.setAdapter(new MyPagerAdapter3(this, in_list, handler));
//设置小圆点
initview();
viewPager.setCurrentItem(10000);
viewPager.setOnPageChangeListener(new OnPageChangeListener() {
@Override
public void onPageSelected(int arg0) {
for (int i = 0; i < imageViews_list.size(); i++) {
if (arg0 % in_list.size() == i) {
imageViews_list.get(i).setImageDrawable(
getResources().getDrawable(R.drawable.check));
} else {
imageViews_list.get(i).setImageDrawable(
getResources().getDrawable(R.drawable.no));
}
}
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
});
//执行
setmove();
//设置小圆点的方法
private void initview() {
imageViews_list = new ArrayList<ImageView>();
linearLayout.removeAllViews();
imageViews_list.clear();
for (int i = 0; i < in_list.size(); i++) {
ImageView imageView = new ImageView(this);
if (i == 0) {
imageView.setImageDrawable(getResources().getDrawable(
R.drawable.check));
} else {
imageView.setImageDrawable(getResources().getDrawable(
R.drawable.no));
}
LayoutParams layoutParams = new LayoutParams(20, 20);
layoutParams.setMargins(5, 0, 5, 0);
linearLayout.addView(imageView, layoutParams);
imageViews_list.add(imageView);
}
}
//xml选中布局
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners android:radius="6dp" />
<solid android:color="#0ff" />
</shape>
//未选择
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners android:radius="6dp" />
<solid android:color="#fff" />
</shape>
//执行延迟轮播
public void setmove() {
handler.sendEmptyMessageDelayed(0, 2000);
}
//适配器里设置数据是list.get(position%list.size);

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