android实现图片+文字轮播（带文字）

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activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent" >    <RelativeLayout        android:layout_width="match_parent"        android:layout_height="160dp" >        <android.support.v4.view.ViewPager            android:id="@+id/viewpager"            android:layout_width="match_parent"            android:layout_height="match_parent" />        <LinearLayout            android:padding="5dp"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_alignParentBottom="true"            android:gravity="center_horizontal"            android:background="#66000000"            android:orientation="vertical" >            <TextView                android:id="@+id/textview"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:singleLine="true"                android:textColor="#fff"                android:textSize="20dp"                android:text="天王盖地虎,天王盖地虎,天王盖地虎," />            <LinearLayout                 android:id="@+id/ll_point"                android:gravity="center_horizontal"                android:orientation="horizontal"                android:layout_marginTop="5dp"                android:layout_width="match_parent"                android:layout_height="wrap_content"               />        </LinearLayout>    </RelativeLayout></RelativeLayout>

MainActivity.java

package com.example.test;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.os.Bundle;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;public class MainActivity extends Activity {    private ViewPager viewpager;    private List<ImageView> ivList;    private String[] descContent;    private TextView tv;    private LinearLayout ll_point;    private int previousPointPosition = 0;    private boolean isRunning = true;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initViews();        initData();        // 自动轮询播放        new Thread(new Runnable() {            @Override            public void run() {                while (isRunning) {                    try {                        Thread.sleep(2000);                    } catch (InterruptedException e) {                        e.printStackTrace();                    }                    runOnUiThread(new Runnable() {                        @Override                        public void run() {                            viewpager.setCurrentItem(viewpager.getCurrentItem() + 1);                        }                    });                }            }        }).start();    }    @Override    protected void onDestroy() {//按返回键，就被摧毁,就停止循环        // TODO Auto-generated method stub        super.onDestroy();        isRunning = false;        System.out.println("-----onDestroy");    }    private void initViews() {        viewpager = (ViewPager) this.findViewById(R.id.viewpager);        tv = (TextView) this.findViewById(R.id.textview);        ll_point = (LinearLayout) this.findViewById(R.id.ll_point);    }    private void initData() {        ivList = new ArrayList<ImageView>();        descContent = new String[] { "窗前明月光", "地上鞋两双", "床上狗男女", "其中必有你", "真的有我" };        int[] imgsId = new int[] { R.drawable.a, R.drawable.b, R.drawable.c,                R.drawable.d, R.drawable.e };        for (int i = 0; i < imgsId.length; i++) {            ImageView iv = new ImageView(this);            iv.setBackgroundResource(imgsId[i]);            ivList.add(iv);            View pointView = new View(this);            pointView.setBackgroundResource(R.drawable.selector_bg_point);            pointView.setEnabled(false);            // 设置圆点的高度和宽度为5            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(                    15, 15);            if (i != 0) {                layoutParams.leftMargin = 10;            }            ll_point.addView(pointView, layoutParams);        }        tv.setText(descContent[0]);// 设置第一个TextView的值        ll_point.getChildAt(0).setEnabled(true);// 设置第一个圆点可用        viewpager.setAdapter(new MyAdapter());        viewpager.setOnPageChangeListener(new MyPageChangeListener());        // 从0滑到Integer.MAX_VALUE，需要63年        int currentPosition = (Integer.MAX_VALUE - 1) / 2 - 3;        viewpager.setCurrentItem(currentPosition);// Integer.MAX_VALUE的值：2147483647    }    class MyAdapter extends PagerAdapter {        @Override        public int getCount() {            return Integer.MAX_VALUE;// Integer.MAX_VALUE的值：2147483647        }        @Override        public boolean isViewFromObject(View view, Object obj) {            return view == obj;        }        @Override        public Object instantiateItem(ViewGroup container, int position) {            System.out.println("---position:" + position);            ImageView iv = ivList.get(position % 5);            ((ViewPager) container).addView(iv);            return iv;        }        @Override        public void destroyItem(ViewGroup container, int position, Object object) {            ((ViewPager) container).removeView((View) object);        }    }    class MyPageChangeListener implements OnPageChangeListener {        @Override        public void onPageScrollStateChanged(int arg0) {            // TODO Auto-generated method stub        }        @Override        public void onPageScrolled(int arg0, float arg1, int arg2) {        }        @Override        public void onPageSelected(int position) {            int newPosition = position % 5;            tv.setText(descContent[newPosition]);            ll_point.getChildAt(previousPointPosition).setEnabled(false);            ll_point.getChildAt(newPosition).setEnabled(true);            previousPointPosition = newPosition;        }    }}

实验截图：
这里写图片描述

源码下载地址：
http://download.csdn.net/detail/u013209983/9739777

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