package com.example.test13;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.TabHost;import android.widget.TabHost.TabSpec;import android.widget.TextView;public class MainActivity extends Activity {private TabHost tabhost;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);tabhost = (TabHost) findViewById(R.id.tabhost);tabhost.setup();//找到TabWidget和FrameLayout//添加标签页TabSpec tab1 = tabhost.newTabSpec("tab1");//tab1.setIndicator("首页",getResources().getDrawable(R.drawable.i1));tab1.setIndicator(createView("首页"));//指定标签的内容tab1.setContent(R.id.line1);tabhost.addTab(tab1);//添加标签页TabSpec tab2 = tabhost.newTabSpec("tab2");//tab2.setIndicator("第二页",getResources().getDrawable(R.drawable.i2));tab2.setIndicator(createView("第二页"));//指定标签的内容tab2.setContent(R.id.line2);tabhost.addTab(tab2);//添加标签页TabSpec tab3 = tabhost.newTabSpec("tab3");//tab3.setIndicator("第三页",getResources().getDrawable(R.drawable.i7));tab3.setIndicator(createView("第三页"));//指定标签的内容tab3.setContent(R.id.line3);tabhost.addTab(tab3);}private View createView(String text){View view = View.inflate(this, R.layout.tab, null);TextView tv_title = (TextView) view.findViewById(R.id.tv_title);tv_title.setText(text);return view;}}

?xml version="1.0" encoding="utf-8"?************point_shape.xml************?xml version="1.0" encoding="utf-8"?************?xml version="1.0" encoding="utf-8"?

**************point_shape2.xml*************?xml version="1.0" encoding="utf-8"?在******activity.xml***********···package com.example.test13_viewpager;import java.util.ArrayList;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity {private ViewPager vp_main;private TextView tv_title;private LinearLayout ll_point_group;private ArrayListimageViews;private int prePosition=0;//上一次高亮显示的位置private Handler handler=new Handler(){public void handleMessage(android.os.Message msg){int item = vp_main.getCurrentItem() + 1;vp_main.setCurrentItem(item);//延迟发消息handler.sendEmptyMessageDelayed(0, 3000);};};//是否已经拖拽private boolean isDragging =false;//图片资源idprivate int[] imgeId={R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d,R.drawable.e};//图片标题集合private String[] imgDescrintions={"周末大放送","家电买一送一","京东火锅节","预约新机","有范"};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);//ListView的使用//1.在布局文件中定义ViewPager//2.在代码中实例化viewpagersetContentView(R.layout.activity_main);vp_main=(ViewPager) findViewById(R.id.vp_main);tv_title=(TextView) findViewById(R.id.tv_title);ll_point_group=(LinearLayout) findViewById(R.id.ll_point_group);//3.准备数据imageViews=new ArrayList(); for (int i = 0; i < imgeId.length; i++) { ImageView imageView = new ImageView(this); //设置背景图片 imageView.setBackgroundResource(imgeId[i]); //添加到集合 imageViews.add(imageView); //添加小圆点 ImageView point=new ImageView(this); //设置背景资源 point.setBackgroundResource(R.drawable.point_selector); //间距 LinearLayout.LayoutParams params=new LinearLayout.LayoutParams(8,8); if (i==0) { point.setEnabled(true);//红色 }else{ point.setEnabled(false);//灰色 params.leftMargin=8;//左外边距 } point.setLayoutParams(params); ll_point_group.addView(point); } //4.设置适配器（pagerAdapter） Item布局 绑定数据 vp_main.setAdapter(new MyAdapter()); //设置监听viewPager页面的改变 vp_main.setOnPageChangeListener(new MyPageChangeListener()); //设置中间位置 保证是imageViews的整数倍 int item=Integer.MAX_VALUE / 2 - Integer.MAX_VALUE /2 % imageViews.size(); vp_main.setCurrentItem(item); //不断的加一 加载 tv_title.setText(imgDescrintions[prePosition]); //发送消息 handler.sendEmptyMessageDelayed(0, 3000);} class MyPageChangeListener implements OnPageChangeListener{ /** 当页面滚动状态变化的时候回调这个方法 静止-》滑动 或 滑动 -> 静止 或 静止--》拖拽 * */ @Override public void onPageScrollStateChanged(int state) { if (state==ViewPager.SCROLL_STATE_DRAGGING) { //拖拽 isDragging=true; } else if (state==ViewPager.SCROLL_STATE_SETTLING){ //滚动 }else if (state==ViewPager.SCROLL_STATE_IDLE&&isDragging ){ //静止并拖拽 isDragging=false; //重新发送事先移除之前的消息 handler.removeCallbacksAndMessages(null); handler.sendEmptyMessageDelayed(0, 3000); } } /** 当前页面滚动了的时候回调的方法 * position 当前页面的位置 * positionOffset 滑动页面的半分比 * positionOffsetPixels 在屏幕上滑动的像素 */ @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } /** 当某个页面被选中了的时候 postion 被选中页面的位置 */