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

Android仿QQ首页ListView左滑置顶、删除功能_第1张图片

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 mMessageItems = new ArrayList();   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

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

更多相关文章

随机推荐