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 * 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

来源：http://blog.csdn.net/pcaxb/article/details/48520123