安卓开发轮播图 复制直接用

复制代码粘上就能用 改改你需要的参数就行了!!!
注意.一定要放五张图以上
Demo地址:http://download.youkuaiyun.com/download/qq_32120667/10122411
layout类
<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="200dp">
    <android.support.v4.view.ViewPager
        android:id="@+id/viewPager"
        android:layout_width="match_parent"
        android:layout_height="200dp">
    </android.support.v4.view.ViewPager>
    <LinearLayout
        android:layout_alignParentBottom="true"
        android:gravity="center"
        android:orientation="horizontal"
        android:id="@+id/lunBoDian"
        android:layout_width="match_parent"
        android:layout_height="20dp"></LinearLayout>
</RelativeLayout>

Activity类

package com.example.computer.yingkezhibo;

import android.os.Bundle;
import android.os.Handler;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;

import com.example.computer.yingkezhibo.adapter.LunBoAdapter;
import com.example.computer.yingkezhibo.adapter.XListViewAdapter;
import com.example.computer.yingkezhibo.entity.IndexReMenEntity;
import com.example.computer.yingkezhibo.view.XListView;

import java.util.ArrayList;
import java.util.List;

public class Index_reMen extends Fragment {

    private ViewPager viewPager;
    private LinearLayout lunBoDian;
    private Integer[] imageUrls = new Integer[] {R.mipmap.index_pic1,R.mipmap.index_pic2,R.mipmap.index_pic3,R.mipmap.index_pic4,R.mipmap.index_pic5};
    private ArrayList<ImageView> viewList;
    private ArrayList<ImageView> dotList;
    Handler handler = new Handler() {
        public void handleMessage(android.os.Message msg) {
            // 先去获取到当前条目索引
            int currentItem = viewPager.getCurrentItem();
            // 条目索引+1
            currentItem++;
            // 重新设置给viewPager
            viewPager.setCurrentItem(currentItem);
            // 再调用发延时消息的方法
            sendDelayMessage();
        }
    };
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view=View.inflate(getActivity(), R.layout.fragment_index_re_men,null);
        viewPager = (ViewPager)view.findViewById(R.id.viewPager);
        lunBoDian = (LinearLayout)view.findViewById(R.id.lunBoDian);
      
        // 初始化图片
        initViewList();
        // 初始化小圆点
        initDots();
        // 设置数据适配器
        viewPager.setAdapter(new LunBoAdapter(getActivity(), viewList, handler));
        // 设置初始的展示条目
        viewPager.setCurrentItem(viewList.size() * 100000);
        // 设置延时切换

        sendDelayMessage();

        // 监听viewPager的一个滑动事件
        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
                // 遍历小点的集合
                for (int i = 0; i < dotList.size(); i++) {
                    // 如果当前的索引值和i相等
                    if (position % dotList.size() == i) {
                        // 设置小点为亮色
                        dotList.get(i).setImageResource(R.drawable.dot_focuse);
                    } else {
                        // 否则暗色
                        dotList.get(i).setImageResource(R.drawable.dot_normal);
                    }
                }
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {

            }

            @Override
            public void onPageScrollStateChanged(int arg0) {

            }
        });
     
        return  view;
    }

    /**
     * 发送延时消息
     */
    private void sendDelayMessage() {
        handler.sendEmptyMessageDelayed(0, 2000);
    }

    private void initDots() {
        // 创建一个装小点控件的集合
        dotList = new ArrayList<>();
        dotList.clear();
        for (int i = 0; i < imageUrls.length; i++) {
            ImageView imageView = new ImageView(getActivity());
            if (i == 0) {
                // 如果是第一张，默认给一个亮的小点
                imageView.setImageResource(R.drawable.dot_focuse);
            } else {
                // 如果不是滴一个，默认给一个暗的小点
                imageView.setImageResource(R.drawable.dot_normal);
            }
            // 设置小点的默认宽高为20dp
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(20, 20);
            // 设置小点的间距
            params.setMargins(5, 0, 5, 0);
            lunBoDian.addView(imageView, params);
            // 往小点集合中添加view
            dotList.add(imageView);
        }
    }

    private void initViewList() {
        viewList = new ArrayList<>();
        for (int i = 0; i < imageUrls.length; i++) {
            ImageView imageView = new ImageView(getActivity());
            imageView.setBackgroundResource(imageUrls[i]);
            viewList.add(imageView);
        }
    }

}

第二个类 adapter类

package com.example.computer.yingkezhibo.adapter;

import android.content.Context;
import android.os.Handler;
import android.support.v4.view.PagerAdapter;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import java.util.List;

/**
 * Created by computer on 2017/7/12.
 */
public class LunBoAdapter extends PagerAdapter {
    private List<ImageView> viewList;
    private Context context;
    private Handler handler;

    public LunBoAdapter(Context context, List<ImageView> viewList,Handler handler) {
        this.context = context;
        this.viewList = viewList;
        this.handler = handler;
    }

    @Override
    public int getCount() {
        return Integer.MAX_VALUE;
    }

    @Override
    public boolean isViewFromObject(View arg0, Object arg1) {
        return arg0 == arg1;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        // 通过控件集合获取imageView 添加到容器中，并作为key 返回
        ImageView imageView = viewList.get(position % viewList.size());
        imageView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                switch (event.getAction()) {
                    // 当按下的时候，停止轮播
                    case MotionEvent.ACTION_DOWN:
                        // 移除所有的回调和消息
                        handler.removeCallbacksAndMessages(null);
                        break;
                    // 抬起
                    case MotionEvent.ACTION_UP:
                        handler.sendEmptyMessageDelayed(0, 2000);
                        break;
                    // 取消的时候，继续开始录播
                    case MotionEvent.ACTION_CANCEL:
                        handler.sendEmptyMessageDelayed(0, 2000);
                        break;
                    default:
                        break;
                }
                //触摸事件不被消费，true 消费该触摸事件
                return true;
            }
        });
        container.addView(imageView);
        return imageView;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        // super.destroyItem(container, position, object);
        container.removeView((View) object);

    }
}