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Android开发中滑动寻呼功能的详细说明

来源：爱站网时间：2020-10-03编辑：网友分享
相信网站内页要实现滚动的效果，会让用户的眼前一亮，如果同时搭配了翻页功能，那就更加的完美了，本文是爱站技术频道小编带给大家的Android开发中滑动寻呼功能的详细说明，一起来了解一下吧！

相信网站内页要实现滚动的效果，会让用户的眼前一亮，如果同时搭配了翻页功能，那就更加的完美了，本文是爱站技术频道小编带给大家的Android开发中滑动寻呼功能的详细说明，一起来了解一下吧！

如图：

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 list = new ArrayList();
         for(int i =0;i

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 list = new ArrayList();
         for(int i =0;i

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 mList;
  private Context mContext;
  public static final int APP_PAGE_SIZE = 4;
  private PackageManager pm;
  public AppAdapter(Context context, List list, int page) {
    mContext = context;
    pm = context.getPackageManager();
    mList = new ArrayList();
    int i = page * APP_PAGE_SIZE;
    int iEnd = i+APP_PAGE_SIZE;
    while ((i

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 mList;
  private Context mContext;
  public static final int APP_PAGE_SIZE = 4;
  private PackageManager pm;
  public AppAdapter(Context context, List list, int page) {
    mContext = context;
    pm = context.getPackageManager();
    mList = new ArrayList();
    int i = page * APP_PAGE_SIZE;
    int iEnd = i+APP_PAGE_SIZE;
    while ((i

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  pageNum){
         ImageView imageView = new ImageView(context);
         imageView.setImageResource(R.drawable.zuo);
         this.addView(imageView);
       }
       for (int i = 0; i  pageSum || 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, 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  pageNum){
         ImageView imageView = new ImageView(context);
         imageView.setImageResource(R.drawable.zuo);
         this.addView(imageView);
       }
       for (int i = 0; i  pageSum || 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, attrs, 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  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  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, AttributeSet attrs) {
    this(context, attrs, 0);
    // TODO Auto-generated constructor stub
  }
  public ScrollLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, 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  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  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;
  }
}

main.xml

app_item.xml

"

"

 

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