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Android开发中滑动分页功能实例详解

Android   发布时间：2022-04-28  发布网站：大佬教程  code.js-code.com
大佬教程收集整理的这篇文章主要介绍了Android开发中滑动分页功能实例详解，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

本文实例讲述了Android开发中滑动分页功能。分享给大家供大家参考，具体如下：

android UI 往右滑动，滑动到最后一页就自动加载数据并显示

如图：

Android开发中滑动分页功能实例详解

Java代码：

package cn.anycall.ju;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.os.bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.message;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.onItemClickListener;
import android.widget.GridView;
import android.widget.Toast;
import cn.anycall.ju.ScrollLayout.onScreenchangelistenerDataLoad;
/**
 * GridView分页显示安装的应用程序
 */
public class AllAppList extends Activity {
  private ScrollLayout mScrollLayout;
  private static final float APP_PAGE_SIZE = 4.0f;
  private Context mContext;
  private PageControlView pageControl;
  public MyHandler myHandler;
  public int n=0;
  private DataLoading dataLoad;
  @Override
  protected void onCreate(Bundle savedInstanceStatE) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceStatE);
    this.requestWindowFeature(Window.FEATURE_NO_titlE);
    mContext = this;
    setContentView(R.layout.main);
    dataLoad = new DataLoading();
    mScrollLayout = (ScrollLayout)findViewById(R.id.ScrollLayoutTest);
    myHandler = new MyHandler(this,1);
    //起一个线程更新数据
    myThread m = new myThread();
    new Thread(m).start();
  }
  /**
   * gridView 的onItemLick响应事件
   */
  public OnItemClickListener listener = new OnItemClickListener() {
    public void onItemClick(AdapterView<?> parent,View view,int position,long id) {
      // TODO Auto-generated method stub
      System.out.println("position="+position);
    }
  };
  @Override
  protected void onDestroy() {
    // TODO Auto-generated method stub
    android.os.process.killProcess(android.os.process.myPid());
    super.onDestroy();
  }
  @Override
  public Boolean onKeyDown(int keyCode,KeyEvent event) {
    // TODO Auto-generated method stub
    if (keyCode == KeyEvent.KEYCODE_BACK) {
      finish();
      return true;
    }
    return super.onKeyDown(keyCode,event);
  }
  // 更新后台数据
  class myThread implements Runnable {
    public void run() {
      try {
        Thread.sleep(1000*3);
      } catch (InterruptedException E) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }
      String msglist = "1";
      message msg = new message();
      Bundle b = new Bundle();// 存放数据
      b.putString("rmsg",msglist);
      msg.setData(b);
      AllAppList.this.myHandler.sendmessage(msg); // 向Handler发送消息,更新UI
    }
  }
  class MyHandler extends Handler {
    private AllAppList mContext;
    public MyHandler(Context conn,int a) {
      mContext = (AllAppList)conn;
    }
    public MyHandler(Looper L) {
      super(L);
    }
    // 子类必须重写此方法,接受数据
    @Override
    public void handlemessage(message msg) {
      // TODO Auto-generated method stub
      super.handlemessage(msg);
      Bundle b = msg.getData();
      String rmsg = b.getString("rmsg");
      if ("1".equals(rmsg)) {
        // do nothing
         List<Map> list = new ArrayList<Map>();
         for(int i =0;i<16;i++){
           n++;
           Map map = new HashMap();
            map.put("name",n);
            list.add(map);
         }
        int pageNo = (int)R_795_11845@ath.ceil( list.size()/APP_PAGE_SIZE);
        for (int i = 0; i < pageNo; i++) {
          GridView appPage = new GridView(mContext);
          // get the "i" page data
          appPage.setAdapter(new APPADapter(mContext,list,i));
          appPage.setNumcolumns(2);
          appPage.setOnItemClickListener(listener);
          mScrollLayout.addView(appPagE);
        }
        //加载分页
        pageControl = (PageControlView) findViewById(R.id.pageControl);
        pageControl.bindScrollViewGroup(mScrollLayout);
        //加载分页数据
        dataLoad.bindScrollViewGroup(mScrollLayout);
        }
      }
    }
  //分页数据
  class DataLoading {
    private int count;
    public void bindScrollViewGroup(ScrollLayout scrollViewGroup) {
      this.count=scrollViewGroup.getChildCount();
      scrollViewGroup.setOnScreenchangelistenerDataLoad(new OnScreenchangelistenerDataLoad() {
        public void onScreenChange(int currenTindeX) {
          // TODO Auto-generated method stub
          generatePageControl(currenTindeX);
        }
      });
    }
    private void generatePageControl(int currenTindeX){
      //如果到最后一页，就加载16条记录
      if(count==currenTindex+1){
        myThread m = new myThread();
        new Thread(m).start();
      }
    }
  }
}

Java代码：

package cn.anycall.ju;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.os.bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.message;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.onItemClickListener;
import android.widget.GridView;
import android.widget.Toast;
import cn.anycall.ju.ScrollLayout.onScreenchangelistenerDataLoad;
/**
 * GridView分页显示安装的应用程序
 */
public class AllAppList extends Activity {
  private ScrollLayout mScrollLayout;
  private static final float APP_PAGE_SIZE = 4.0f;
  private Context mContext;
  private PageControlView pageControl;
  public MyHandler myHandler;
  public int n=0;
  private DataLoading dataLoad;
  @Override
  protected void onCreate(Bundle savedInstanceStatE) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceStatE);
    this.requestWindowFeature(Window.FEATURE_NO_titlE);
    mContext = this;
    setContentView(R.layout.main);
    dataLoad = new DataLoading();
    mScrollLayout = (ScrollLayout)findViewById(R.id.ScrollLayoutTest);
    myHandler = new MyHandler(this,i));
          appPage.setNumcolumns(2);
          appPage.setOnItemClickListener(listener);
          mScrollLayout.addView(appPagE);
        }
        //加载分页
        pageControl = (PageControlView) findViewById(R.id.pageControl);
        pageControl.bindScrollViewGroup(mScrollLayout);
        //加载分页数据
        dataLoad.bindScrollViewGroup(mScrollLayout);
        }
      }
    }
  //分页数据
  class DataLoading {
    private int count;
    public void bindScrollViewGroup(ScrollLayout scrollViewGroup) {
      this.count=scrollViewGroup.getChildCount();
      scrollViewGroup.setOnScreenchangelistenerDataLoad(new OnScreenchangelistenerDataLoad() {
        public void onScreenChange(int currenTindeX) {
          // TODO Auto-generated method stub
          generatePageControl(currenTindeX);
        }
      });
    }
    private void generatePageControl(int currenTindeX){
      //如果到最后一页，就加载16条记录
      if(count==currenTindex+1){
        myThread m = new myThread();
        new Thread(m).start();
      }
    }
  }
}

Java代码：

package cn.anycall.ju;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.baseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import cn.anycall.ju.R;
public class APPADapter extends BaseAdapter {
  private List<Map> mList;
  private Context mContext;
  public static final int aPP_PAGE_SIZE = 4;
  private PackageManager pm;
  public APPADapter(Context context,List<Map> list,int pagE) {
    mContext = context;
    pm = context.getPackageManager();
    mList = new ArrayList<Map>();
    int i = page * APP_PAGE_SIZE;
    int iEnd = i+APP_PAGE_SIZE;
    while ((i<list.size()) && (i<iEnd)) {
      mList.add(list.get(i));
      i++;
    }
  }
  public int getCount() {
    // TODO Auto-generated method stub
    return mList.size();
  }
  public Object getItem(int position) {
    // TODO Auto-generated method stub
    return mList.get(position);
  }
  public long getItemId(int position) {
    // TODO Auto-generated method stub
    return position;
  }
  public View getView(int position,View convertView,ViewGroup parent) {
    // TODO Auto-generated method stub
    Map appInfo = mList.get(position);
    AppItem appItem;
    if (convertView == null) {
      View v = LayoutInflater.from(mContext).inflate(R.layout.app_item,null);
      appItem = new AppItem();
      appItem.mAppIcon = (ImageView)v.findViewById(R.id.imgdetail);
      appItem.mAppName = (TextView)v.findViewById(R.id.tuaninfo);
      v.setTag(appItem);
      convertView = v;
    } else {
      appItem = (AppItem)convertView.getTag();
    }
    // set the icon
    appItem.mAppIcon.setImageresource(R.drawable.icon);
    // set the app name
    appItem.mAppName.setText(appInfo.get("name").toString());
    return convertView;
  }
  /**
   * 每个应用显示的内容，包括图标和名称
   * @author Yao.GUET
   *
   */
  class AppItem {
    ImageView mAppIcon;
    TextView mAppName;
  }
}

Java代码：

package cn.anycall.ju;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.baseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import cn.anycall.ju.R;
public class APPADapter extends BaseAdapter {
  private List<Map> mList;
  private Context mContext;
  public static final int aPP_PAGE_SIZE = 4;
  private PackageManager pm;
  public APPADapter(Context context,null);
      appItem = new AppItem();
      appItem.mAppIcon = (ImageView)v.findViewById(R.id.imgdetail);
      appItem.mAppName = (TextView)v.findViewById(R.id.tuaninfo);
      v.setTag(appItem);
      convertView = v;
    } else {
      appItem = (AppItem)convertView.getTag();
    }
    // set the icon
    appItem.mAppIcon.setImageresource(R.drawable.icon);
    // set the app name
    appItem.mAppName.setText(appInfo.get("name").toString());
    return convertView;
  }
  /**
   * 每个应用显示的内容，包括图标和名称
   * @author Yao.GUET
   *
   */
  class AppItem {
    ImageView mAppIcon;
    TextView mAppName;
  }
}

Java代码：

package cn.anycall.ju;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.ImageView;
import android.widget.LinearLayout;
import cn.anycall.ju.R;
import cn.anycall.ju.ScrollLayout.onScreenchangelistener;
public class PageControlView extends LinearLayout {
  private Context context;
  private int count;
  public void bindScrollViewGroup(ScrollLayout scrollViewGroup) {
    this.count=scrollViewGroup.getChildCount();
    System.out.println("count="+count);
    generatePageControl(scrollViewGroup.getCurrentScreenIndex());
    scrollViewGroup.setOnScreenchangelistener(new OnScreenchangelistener() {
      public void onScreenChange(int currenTindeX) {
        // TODO Auto-generated method stub
        generatePageControl(currenTindeX);
      }
    });
  }
  public PageControlView(Context context) {
    super(context);
    this.init(context);
  }
  public PageControlView(Context context,AttributeSet attrs) {
    super(context,attrs);
    this.init(context);
  }
  private void init(Context context) {
    this.context=context;
  }
  private void generatePageControl(int currenTindeX) {
    this.removeAllViews();
    int pageNum = 6; // 显示多少个
    int pageNo = currenTindex+1; //第几页
    int pageSum = this.count; //总共多少页
    if(pageSum>1){
      int currentNum = (pageNo % pageNum == 0 ? (pageNo / pageNum) - 1
           : (int) (pageNo / pageNum))
           * pageNum;
       if (currentNum < 0)
         currentNum = 0;
       if (pageNo > pageNum){
         ImageView imageView = new ImageView(context);
         imageView.setImageresource(R.drawable.zuo);
         this.addView(imageView);
       }
       for (int i = 0; i < pageNum; i++) {
         if ((currentNum + i + 1) > pageSum || pageSum < 2)
           break;
         ImageView imageView = new ImageView(context);
         if(currentNum + i + 1 == pageNo){
           imageView.setImageresource(R.drawable.page_inDicator_focused);
         }else{
           imageView.setImageresource(R.drawable.page_inDicator);
         }
         this.addView(imageView);
       }
       if (pageSum > (currentNum + pageNum)) {
         ImageView imageView = new ImageView(context);
         imageView.setImageresource(R.drawable.you);
         this.addView(imageView);
       }
    }
  }
}

Java代码：

package cn.anycall.ju;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.ImageView;
import android.widget.LinearLayout;
import cn.anycall.ju.R;
import cn.anycall.ju.ScrollLayout.onScreenchangelistener;
public class PageControlView extends LinearLayout {
  private Context context;
  private int count;
  public void bindScrollViewGroup(ScrollLayout scrollViewGroup) {
    this.count=scrollViewGroup.getChildCount();
    System.out.println("count="+count);
    generatePageControl(scrollViewGroup.getCurrentScreenIndex());
    scrollViewGroup.setOnScreenchangelistener(new OnScreenchangelistener() {
      public void onScreenChange(int currenTindeX) {
        // TODO Auto-generated method stub
        generatePageControl(currenTindeX);
      }
    });
  }
  public PageControlView(Context context) {
    super(context);
    this.init(context);
  }
  public PageControlView(Context context,attrs);
    this.init(context);
  }
  private void init(Context context) {
    this.context=context;
  }
  private void generatePageControl(int currenTindeX) {
    this.removeAllViews();
    int pageNum = 6; // 显示多少个
    int pageNo = currenTindex+1; //第几页
    int pageSum = this.count; //总共多少页
    if(pageSum>1){
      int currentNum = (pageNo % pageNum == 0 ? (pageNo / pageNum) - 1
           : (int) (pageNo / pageNum))
           * pageNum;
       if (currentNum < 0)
         currentNum = 0;
       if (pageNo > pageNum){
         ImageView imageView = new ImageView(context);
         imageView.setImageresource(R.drawable.zuo);
         this.addView(imageView);
       }
       for (int i = 0; i < pageNum; i++) {
         if ((currentNum + i + 1) > pageSum || pageSum < 2)
           break;
         ImageView imageView = new ImageView(context);
         if(currentNum + i + 1 == pageNo){
           imageView.setImageresource(R.drawable.page_inDicator_focused);
         }else{
           imageView.setImageresource(R.drawable.page_inDicator);
         }
         this.addView(imageView);
       }
       if (pageSum > (currentNum + pageNum)) {
         ImageView imageView = new ImageView(context);
         imageView.setImageresource(R.drawable.you);
         this.addView(imageView);
       }
    }
  }
}

Java代码：

package cn.anycall.ju;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.VeLocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.Scroller;
/**
 * 仿Launcher中的WorkSapce，可以左右滑动切换屏幕的类
 *
 */
public class ScrollLayout extends ViewGroup {
  private static final String TAG = "ScrollLayout";
  private Scroller mScroller;
  private VeLocityTracker mVeLocityTracker;
  privatE int mcurscreen;
  privatE int mDefaultScreen = 0;
  private static final int TOUCH_STATE_REST = 0;
  private static final int TOUCH_STATE_SCROLLING = 1;
  private static final int SNAP_VELociTY = 600;
  privatE int mTouchState = TOUCH_STATE_REST;
  privatE int mTouchSlop;
  private float mLastMotionX;
  private float mLastMotionY;
  privatE int currentScreenIndex = 0;
  public int getCurrentScreenIndex() {
    return currentScreenIndex;
  }
  public void setCurrentScreenIndex(int currentScreenIndeX) {
    this.currentScreenIndex = currentScreenIndex;
  }
  public ScrollLayout(Context context,AttributeSet attrs) {
    this(context,attrs,0);
    // TODO Auto-generated constructor stub
  }
  public ScrollLayout(Context context,AttributeSet attrs,int defStylE) {
    super(context,defStylE);
    // TODO Auto-generated constructor stub
    mScroller = new Scroller(context);
    mcurscreen = mDefaultScreen;
    mTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
  }
  @Override
  protected void onLayout(Boolean changed,int l,int t,int r,int b) {
    // TODO Auto-generated method stub
    int childLeft = 0;
    final int childCount = getChildCount();
    System.out.println("childCount=" + childCount);
    for (int i = 0; i < childCount; i++) {
      final View childView = getChildAt(i);
      if (childView.getVisibility() != View.GONE) {
        final int childWidth = childView.getMeasuredWidth();
        childView.layout(childLeft,childLeft + childWidth,childView.getMeasuredHeight());
        childLeft += childWidth;
      }
    }
  }
  @Override
  protected void onMeasure(int widthMeasureSpec,int heightMeasureSpeC) {
    Log.e(tag,"onMeasure");
    super.onMeasure(widthMeasureSpec,heightMeasureSpec);
    final int width = MeasureSpec.getSize(widthMeasureSpec);
    final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    if (widthMode != MeasureSpec.EXACTLY) {
      throw new IllegalStateException(
          "ScrollLayout only canmcurscreen run at EXACTLY mode!");
    }
    final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    if (heightMode != MeasureSpec.EXACTLY) {
      throw new IllegalStateException(
          "ScrollLayout only can run at EXACTLY mode!");
    }
    // The children are given the same width and height as the scrollLayout
    final int count = getChildCount();
    for (int i = 0; i < count; i++) {
      getChildAt(i).measure(widthMeasureSpec,heightMeasureSpec);
    }
    System.out.println("moving to screen " + mcurscreen);
    scrollTo(mcurscreen * width,0);
  }
  /**
   * According to the position of current layout scroll to the desTination
   * page.
   */
  public void snapToDesTination() {
    final int screenWidth = getWidth();
    final int destScreen = (getScrollX() + screenWidth / 2) / screenWidth;
    snapToScreen(destScreen);
  }
  public void snapToScreen(int whichScreen) {
    // get the valid layout page
    whichScreen = Math.max(0,Math.min(whichScreen,getChildCount() - 1));
    if (getScrollX() != (whichScreen * getWidth())) {
      final int delta = whichScreen * getWidth() - getScrollX();
      mScroller.startScroll(getScrollX(),delta,Math.abs(delta) * 2);
      mcurscreen = whichScreen;
      invalidate(); // Redraw the layout
    }
  }
  public void setToScreen(int whichScreen) {
    whichScreen = Math.max(0,getChildCount() - 1));
    mcurscreen = whichScreen;
    scrollTo(whichScreen * getWidth(),0);
  }
  public int getcurscreen() {
    return mcurscreen;
  }
  @Override
  public void computeScroll() {
    // TODO Auto-generated method stub
    if (mScroller.computeScrollOffset()) {
      scrollTo(mScroller.getCurrX(),mScroller.getCurrY());
      posTinvalidate();
    }
  }
  @Override
  public Boolean onTouchEvent(MotionEvent event) {
    // TODO Auto-generated method stub
    if (mVeLocityTracker == null) {
      mVeLocityTracker = VeLocityTracker.obtain();
    }
    mVeLocityTracker.addMovement(event);
    final int action = event.getAction();
    final float x = event.getX();
    final float y = event.getY();
    switch (action) {
    case MotionEvent.ACTION_DOWN:
      Log.e(tag,"event down!");
      if (!mScroller.isFinished()) {
        mScroller.abortAnimation();
      }
      mLastMotionX = x;
      break;
    case MotionEvent.ACTION_MOVE:
      int deltaX = (int) (mLastMotionX - X);
      mLastMotionX = x;
      scrollBy(deltaX,0);
      break;
    case MotionEvent.ACTION_UP:
      Log.e(tag,"event : up");
      // if (mTouchState == TOUCH_STATE_SCROLLING) {
      final VeLocityTracker veLocityTracker = mVeLocityTracker;
      veLocityTracker.computeCurrentVeLocity(1000);
      int veLocityX = (int) veLocityTracker.getXVeLocity();
      Log.e(tag,"veLocityX:" + veLocityX);
      if (veLocityX > SNAP_VELociTY && mcurscreen > 0) {
        // Fling enough to move left
        Log.e(tag,"snap left");
        onScreenchangelistener.onScreenChange(mcurscreen - 1);
        System.out.println("mcurscreen=" + (mcurscreen - 1));
        snapToScreen(mcurscreen - 1);
      } else if (veLocityX < -SNAP_VELociTY
          && mcurscreen < getChildCount() - 1) {
        // Fling enough to move right
        Log.e(tag,"snap right");
        onScreenchangelistener.onScreenChange(mcurscreen + 1);
        //只往右移动才加载数据
        onScreenchangelistenerDataLoad.onScreenChange(mcurscreen+1);
        snapToScreen(mcurscreen + 1);
      } else {
        snapToDesTination();
      }
      if (mVeLocityTracker != null) {
        mVeLocityTracker.recycle();
        mVeLocityTracker = null;
      }
      // }
      mTouchState = TOUCH_STATE_REST;
      break;
    case MotionEvent.ACTION_CANCEL:
      mTouchState = TOUCH_STATE_REST;
      break;
    }
    return true;
  }
  @Override
  public Boolean onInterceptTouchEvent(MotionEvent ev) {
    // TODO Auto-generated method stub
    Log.e(tag,"onInterceptTouchEvent-slop:" + mTouchSlop);
    final int action = ev.getAction();
    if ((action == MotionEvent.ACTION_MOVE)
        && (mTouchState != TOUCH_STATE_REST)) {
      return true;
    }
    final float x = ev.getX();
    final float y = ev.getY();
    switch (action) {
    case MotionEvent.ACTION_MOVE:
      final int xDiff = (int) Math.abs(mLastMotionX - X);
      if (xDiff > mTouchSlop) {
        mTouchState = TOUCH_STATE_SCROLLING;
      }
      break;
    case MotionEvent.ACTION_DOWN:
      mLastMotionX = x;
      mLastMotionY = y;
      mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST
          : TOUCH_STATE_SCROLLING;
      break;
    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
      mTouchState = TOUCH_STATE_REST;
      break;
    }
    return mTouchState != TOUCH_STATE_REST;
  }
  //分页监听
  public interface OnScreenchangelistener {
    void onScreenChange(int currenTindeX);
  }
  private OnScreenchangelistener onScreenchangelistener;
  public void setOnScreenchangelistener(
      OnScreenchangelistener onScreenchangelistener) {
    this.onScreenchangelistener = onScreenchangelistener;
  }
  //动态数据监听
  public interface OnScreenchangelistenerDataLoad {
    void onScreenChange(int currenTindeX);
  }
  private OnScreenchangelistenerDataLoad onScreenchangelistenerDataLoad;
  public void setOnScreenchangelistenerDataLoad(OnScreenchangelistenerDataLoad onScreenchangelistenerDataLoad) {
    this.onScreenchangelistenerDataLoad = onScreenchangelistenerDataLoad;
  }
}

Java代码

package cn.anycall.ju;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.VeLocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.Scroller;
/**
 * 仿Launcher中的WorkSapce，可以左右滑动切换屏幕的类
 *
 */
public class ScrollLayout extends ViewGroup {
  private static final String TAG = "ScrollLayout";
  private Scroller mScroller;
  private VeLocityTracker mVeLocityTracker;
  privatE int mcurscreen;
  privatE int mDefaultScreen = 0;
  private static final int TOUCH_STATE_REST = 0;
  private static final int TOUCH_STATE_SCROLLING = 1;
  private static final int SNAP_VELociTY = 600;
  privatE int mTouchState = TOUCH_STATE_REST;
  privatE int mTouchSlop;
  private float mLastMotionX;
  private float mLastMotionY;
  privatE int currentScreenIndex = 0;
  public int getCurrentScreenIndex() {
    return currentScreenIndex;
  }
  public void setCurrentScreenIndex(int currentScreenIndeX) {
    this.currentScreenIndex = currentScreenIndex;
  }
  public ScrollLayout(Context context,"onInterceptTouchEvent-slop:" + mTouchSlop);
    final int action = ev.getAction();
    if ((action == MotionEvent.ACTION_MOVE)
        && (mTouchState != TOUCH_STATE_REST)) {
      return true;
    }
    final float x = ev.getX();
    final float y = ev.getY();
    switch (action) {
    case MotionEvent.ACTION_MOVE:
      final int xDiff = (int) Math.abs(mLastMotionX - X);
      if (xDiff > mTouchSlop) {
        mTouchState = TOUCH_STATE_SCROLLING;
      }
      break;
    case MotionEvent.ACTION_DOWN:
      mLastMotionX = x;
      mLastMotionY = y;
      mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST
          : TOUCH_STATE_SCROLLING;
      break;
    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
      mTouchState = TOUCH_STATE_REST;
      break;
    }
    return mTouchState != TOUCH_STATE_REST;
  }
  //分页监听
  public interface OnScreenchangelistener {
    void onScreenChange(int currenTindeX);
  }
  private OnScreenchangelistener onScreenchangelistener;
  public void setOnScreenchangelistener(
      OnScreenchangelistener onScreenchangelistener) {
    this.onScreenchangelistener = onScreenchangelistener;
  }
  //动态数据监听
  public interface OnScreenchangelistenerDataLoad {
    void onScreenChange(int currenTindeX);
  }
  private OnScreenchangelistenerDataLoad onScreenchangelistenerDataLoad;
  public void setOnScreenchangelistenerDataLoad(OnScreenchangelistenerDataLoad onScreenchangelistenerDataLoad) {
    this.onScreenchangelistenerDataLoad = onScreenchangelistenerDataLoad;
  }
}
@H_529_0@main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://scheR_795_11845@as.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
  <TextView android:layout_width="fill_parent"
    android:layout_height="wrap_content" android:text="仿淘宝聚划算"/>
<RelativeLayout
  android:id="@+id/myView"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
<cn.anycall.ju.ScrollLayout
 xmlns:android="http://scheR_795_11845@as.android.com/apk/res/android"
 android:id="@+id/ScrollLayoutTest"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent" android:BACkground="#000000" >
</cn.anycall.ju.ScrollLayout>
<cn.anycall.ju.PageControlView
        android:id="@+id/pageControl"
        android:layout_width="fill_parent"
        android:layout_height="40px"
        android:BACkground="#8f00000f"
        android:layout_alignParentBottom="true"
        android:gravity="center"/>
</RelativeLayout>
</LinearLayout>


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://scheR_795_11845@as.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
  <TextView android:layout_width="fill_parent"
    android:layout_height="wrap_content" android:text="仿淘宝聚划算"/>
<RelativeLayout
  android:id="@+id/myView"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
<cn.anycall.ju.ScrollLayout
 xmlns:android="http://scheR_795_11845@as.android.com/apk/res/android"
 android:id="@+id/ScrollLayoutTest"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent" android:BACkground="#000000" >
</cn.anycall.ju.ScrollLayout>
<cn.anycall.ju.PageControlView
        android:id="@+id/pageControl"
        android:layout_width="fill_parent"
        android:layout_height="40px"
        android:BACkground="#8f00000f"
        android:layout_alignParentBottom="true"
        android:gravity="center"/>
</RelativeLayout>
</LinearLayout>

app_item.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://scheR_795_11845@as.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<RelativeLayout android:id="@+id/alllayout" android:layout_width="wrap_content" android:layout_height="wrap_content">
   <RelativeLayout android:id="@+id/imglayout" android:layout_width="160dp" android:layout_height="160dp" android:BACkground="@drawable/mer_border">
        <ImageView android:id="@+id/imgdetail" android:layout_width="145dp" android:layout_height="145dp" android:layout_margin="8dp" />
        <TextView android:id="@+id/price" android:layout_width="180dp" android:layout_height="wrap_content" android:text="12345" android:layout_alignParentBottom="true" android:BACkground="#C02000" android:textColor="#FFFFFF"/>
        <TextView android:id="@+id/look" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="去看看" android:layout_alignParentBottom="true" android:layout_alignParentright="true" android:BACkground="#C02000" android:textColor="#FFFFFF"/>
   </RelativeLayout>
   <TextView android:id="@+id/tuaninfo" android:layout_width="fill_parent"
   android:layout_height="wrap_content" android:textSize="16dp"
   android:maxLines="2" android:layouT_Below="@id/imglayout"
    android:ellipsize="end" android:text="dddddddddd"/>"
</RelativeLayout>
</RelativeLayout>


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://scheR_795_11845@as.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<RelativeLayout android:id="@+id/alllayout" android:layout_width="wrap_content" android:layout_height="wrap_content">
   <RelativeLayout android:id="@+id/imglayout" android:layout_width="160dp" android:layout_height="160dp" android:BACkground="@drawable/mer_border">
        <ImageView android:id="@+id/imgdetail" android:layout_width="145dp" android:layout_height="145dp" android:layout_margin="8dp" />
        <TextView android:id="@+id/price" android:layout_width="180dp" android:layout_height="wrap_content" android:text="12345" android:layout_alignParentBottom="true" android:BACkground="#C02000" android:textColor="#FFFFFF"/>
        <TextView android:id="@+id/look" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="去看看" android:layout_alignParentBottom="true" android:layout_alignParentright="true" android:BACkground="#C02000" android:textColor="#FFFFFF"/>
   </RelativeLayout>
   <TextView android:id="@+id/tuaninfo" android:layout_width="fill_parent"
   android:layout_height="wrap_content" android:textSize="16dp"
   android:maxLines="2" android:layouT_Below="@id/imglayout"
    android:ellipsize="end" android:text="dddddddddd"/>"
</RelativeLayout>
</RelativeLayout>

更多关于Android相关内容感兴趣的读者可查看本站专题：《Android图形与图像处理技巧总结》、《Android开发入门与进阶教程》、《Android调试技巧与常见问题解决方法汇总》、《Android多媒体操作技巧汇总(音频,视频,录音等)》、《Android基本组件用法总结》、《Android视图View技巧总结》、《Android布局layout技巧总结》及《Android控件用法总结》

希望本文所述对大家Android程序设计有所帮助。

大佬总结

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