Android仿QQ首页ListView左滑置顶、删除功能

Android 仿QQ首页ListView左滑置顶、删除等实现源码，具体内容如下

效果图

实现源码：package com.duguang.baseanimation.ui.listivew.deletelistview;

import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.Scroller;
import android.widget.TextView; 

import com.kayak.deletelistview.R; 

public class SlideView extends LinearLayout { 

 private static final String TAG = "SlideView"; 

 private Context mContext;
 private LinearLayout mViewContent;
 private RelativeLayout mHolder;
 private Scroller mScroller;
 private OnSlideListener mOnSlideListener; 

 private int mHolderWidth = 120; 

 private int mLastX = 0;
 private int mLastY = 0;
 private static final int TAN = 2; 

 public interface OnSlideListener {
  public static final int SLIDE_STATUS_OFF = 0;
  public static final int SLIDE_STATUS_START_SCROLL = 1;
  public static final int SLIDE_STATUS_ON = 2; 

  /**
   * @param view current SlideView
   * @param status SLIDE_STATUS_ON or SLIDE_STATUS_OFF
   */
  public void onSlide(View view, int status);
 } 

 public SlideView(Context context) {
  super(context);
  initView();
 } 

 public SlideView(Context context, AttributeSet attrs) {
  super(context, attrs);
  initView();
 } 

 private void initView() {
  mContext = getContext();
  mScroller = new Scroller(mContext); 

  setOrientation(LinearLayout.HORIZONTAL);
  View.inflate(mContext, R.layout.activity_listview_delete_slide_view_merge, this);
  mViewContent = (LinearLayout) findViewById(R.id.view_content);
  mHolderWidth = Math.round(TypedValue.applyDimension(
    TypedValue.COMPLEX_UNIT_DIP, mHolderWidth, getResources()
      .getDisplayMetrics()));
 } 

 public void setButtonText(CharSequence text) {
  ((TextView)findViewById(R.id.delete)).setText(text);
 } 

 public void setContentView(View view) {
  mViewContent.addView(view);
 } 

 public void setOnSlideListener(OnSlideListener onSlideListener) {
  mOnSlideListener = onSlideListener;
 } 

 public void shrink() {
  if (getScrollX() != 0) {
   this.smoothScrollTo(0, 0);
  }
 } 

 public void onRequireTouchEvent(MotionEvent event) {
  int x = (int) event.getX();
  int y = (int) event.getY();
  int scrollX = getScrollX();
  Log.d(TAG, "x=" + x + " y=" + y); 

  switch (event.getAction()) {
  case MotionEvent.ACTION_DOWN: {
   if (!mScroller.isFinished()) {
    mScroller.abortAnimation();
   }
   if (mOnSlideListener != null) {
    mOnSlideListener.onSlide(this,
      OnSlideListener.SLIDE_STATUS_START_SCROLL);
   }
   break;
  }
  case MotionEvent.ACTION_MOVE: {
   int deltaX = x - mLastX;
   int deltaY = y - mLastY;
   if (Math.abs(deltaX) < Math.abs(deltaY) * TAN) {
    break;
   } 

   int newScrollX = scrollX - deltaX;
   if (deltaX != 0) {
    if (newScrollX < 0) {
     newScrollX = 0;
    } else if (newScrollX > mHolderWidth) {
     newScrollX = mHolderWidth;
    }
    this.scrollTo(newScrollX, 0);
   }
   break;
  }
  case MotionEvent.ACTION_UP: {
   int newScrollX = 0;
   if (scrollX - mHolderWidth * 0.75 > 0) {
    newScrollX = mHolderWidth;
   }
   this.smoothScrollTo(newScrollX, 0);
   if (mOnSlideListener != null) {
    mOnSlideListener.onSlide(this,
      newScrollX == 0 ? OnSlideListener.SLIDE_STATUS_OFF
        : OnSlideListener.SLIDE_STATUS_ON);
   }
   break;
  }
  default:
   break;
  } 

  mLastX = x;
  mLastY = y;
 } 

 private void smoothScrollTo(int destX, int destY) {
  // 缓慢滚动到指定位置
  int scrollX = getScrollX();
  int delta = destX - scrollX;
  mScroller.startScroll(scrollX, 0, delta, 0, Math.abs(delta) * 3);
  invalidate();
 } 

 @Override
 public void computeScroll() {
  if (mScroller.computeScrollOffset()) {
   scrollTo(mScroller.getCurrX(), mScroller.getCurrY());
   postInvalidate();
  }
 } 

}

package com.duguang.baseanimation.ui.listivew.deletelistview; 

import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ListView; 

import com.duguang.baseanimation.ui.listivew.deletelistview.DeleteListViewMainActivity.MessageItem; 

public class ListViewCompat extends ListView { 

 private static final String TAG = "ListViewCompat"; 

 private SlideView mFocusedItemView; 

 public ListViewCompat(Context context) {
  super(context);
 } 

 public ListViewCompat(Context context, AttributeSet attrs) {
  super(context, attrs);
 } 

 public ListViewCompat(Context context, AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
 } 

 public void shrinkListItem(int position) {
  View item = getChildAt(position); 

  if (item != null) {
   try {
    ((SlideView) item).shrink();
   } catch (ClassCastException e) {
    e.printStackTrace();
   }
  }
 } 

 @Override
 public boolean onTouchEvent(MotionEvent event) {
  switch (event.getAction()) {
  case MotionEvent.ACTION_DOWN: {
   int x = (int) event.getX();
   int y = (int) event.getY();
   int position = pointToPosition(x, y);
   Log.e(TAG, "postion=" + position);
   if (position != INVALID_POSITION) {
    MessageItem data = (MessageItem) getItemAtPosition(position);
    mFocusedItemView = data.slideView;
    Log.e(TAG, "FocusedItemView=" + mFocusedItemView);
   }
  }
  default:
   break;
  } 

  if (mFocusedItemView != null) {
   mFocusedItemView.onRequireTouchEvent(event);
  } 

  return super.onTouchEvent(event);
 } 

}

package com.duguang.baseanimation.ui.listivew.deletelistview; 

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

import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast; 

import com.duguang.baseanimation.ui.base.BaseActivity;
import com.duguang.baseanimation.ui.listivew.deletelistview.SlideView.OnSlideListener;
import com.kayak.deletelistview.R; 

public class DeleteListViewMainActivity extends BaseActivity implements OnItemClickListener, OnClickListener,
  OnSlideListener { 

 private static final String TAG = "MainActivity"; 

 private ListViewCompat mListView; 

 private List<MessageItem> mMessageItems = new ArrayList<DeleteListViewMainActivity.MessageItem>(); 

 private SlideView mLastSlideViewWithStatusOn; 

 private SlideAdapter adapter; 

 @Override
 public void setView() {
   setContentView(R.layout.activity_listview_delete_main); 

 } 

 @Override
 public void initView() {
   mListView = (ListViewCompat) findViewById(R.id.list); 

   for (int i = 0; i < 20; i++) {
    MessageItem item = new MessageItem();
    if (i % 3 == 0) {
     item.iconRes = R.drawable.delete_default_qq_avatar;
     item.title = "腾讯新闻";
     item.msg = "青岛爆炸满月：大量鱼虾死亡";
     item.time = "晚上18:18";
    } else {
     item.iconRes = R.drawable.delete_wechat_icon;
     item.title = "微信团队";
     item.msg = "欢迎你使用微信";
     item.time = "12月18日";
    }
    mMessageItems.add(item);
   } 

   adapter = new SlideAdapter();
   mListView.setAdapter(adapter);
   mListView.setOnItemClickListener(this); 

 } 

 @Override
 public void setListener() {
  // TODO Auto-generated method stub 

 } 

 private class SlideAdapter extends BaseAdapter { 

  private LayoutInflater mInflater;
  SlideAdapter() {
   super();
   mInflater = getLayoutInflater();
  } 

  @Override
  public int getCount() {
   return mMessageItems.size();
  } 

  @Override
  public Object getItem(int position) {
   return mMessageItems.get(position);
  } 

  @Override
  public long getItemId(int position) {
   return position;
  } 

  @Override
  public View getView(final int position, View convertView, ViewGroup parent) {
   ViewHolder holder;
   SlideView slideView = (SlideView) convertView;
   if (slideView == null) {
    View itemView = mInflater.inflate(R.layout.item_listview_delete, null); 

    slideView = new SlideView(DeleteListViewMainActivity.this);
    slideView.setContentView(itemView); 

    holder = new ViewHolder(slideView);
    slideView.setOnSlideListener(DeleteListViewMainActivity.this);
    slideView.setTag(holder);
   } else {
    holder = (ViewHolder) slideView.getTag();
   }
   MessageItem item = mMessageItems.get(position);
   item.slideView = slideView;
   item.slideView.shrink(); 

   holder.icon.setImageResource(item.iconRes);
   holder.title.setText(item.title);
   holder.msg.setText(item.msg);
   holder.time.setText(item.time);
   holder.deleteHolder.setOnClickListener(new OnClickListener() { 

    @Override
    public void onClick(View v) {
     mMessageItems.remove(position);
     adapter.notifyDataSetChanged();
     Toast.makeText(DeleteListViewMainActivity.this, "删除第" + position+"个条目", 0).show();
    }
   }); 

   return slideView;
  } 

 } 

 public class MessageItem {
  public int iconRes;
  public String title;
  public String msg;
  public String time;
  public SlideView slideView;
 } 

 private static class ViewHolder {
  public ImageView icon;
  public TextView title;
  public TextView msg;
  public TextView time;
  public ViewGroup deleteHolder; 

  ViewHolder(View view) {
   icon = (ImageView) view.findViewById(R.id.icon);
   title = (TextView) view.findViewById(R.id.title);
   msg = (TextView) view.findViewById(R.id.msg);
   time = (TextView) view.findViewById(R.id.time);
   deleteHolder = (ViewGroup)view.findViewById(R.id.holder);
  }
 } 

 @Override
 public void onItemClick(AdapterView<?> parent, View view, int position,
   long id) {
  Toast.makeText(this, "onItemClick position=" + position, 0).show(); 

 } 

 @Override
 public void onSlide(View view, int status) {
  if (mLastSlideViewWithStatusOn != null && mLastSlideViewWithStatusOn != view) {
   mLastSlideViewWithStatusOn.shrink();
  } 

  if (status == SLIDE_STATUS_ON) {
   mLastSlideViewWithStatusOn = (SlideView) view;
  }
 } 

 @Override
 public void onClick(View v) {
  switch (v.getId()) {
 case R.id.holder: 

  break; 

 default:
  break;
 }
 } 

}

源码下载地址：Android仿QQ左滑置顶删除功能

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