仿QQ列表侧滑删除的ListView

太过爱你忘了你带给我的痛 2024-02-17 17:29 52阅读 0赞

上图

![Center][]

代码DeleteListViewMainActivity

package com.wsj.deletelistviewmainactivity;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import com.wsj.deletelistviewmainactivity.SlideView.OnSlideListener;
    
    import android.app.Activity;
    import android.os.Bundle;
    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;
    
    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";
    	                item.flag = true;
    	            } 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);
                slideView.updateView(item.flag);
                
                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 boolean flag;
            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;
    	}
        }
    
    }

SlideView

package com.wsj.deletelistviewmainactivity;
    
    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;
    
    
    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;
    	private View view, view1,view2;
    	private View contentView;
    
    	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 = View.inflate(mContext,
    				R.layout.activity_listview_delete_slide_view_merge, this);
    		view1 = view.findViewById(R.id.holder);
    		view2 = view.findViewById(R.id.holder2);
    		mViewContent = (LinearLayout) findViewById(R.id.view_content);
    		mHolderWidth = Math.round(TypedValue.applyDimension(
    				TypedValue.COMPLEX_UNIT_DIP, mHolderWidth, getResources()
    						.getDisplayMetrics()));
    	}
    
    	public void updateView(boolean flag){
    		if(flag){
    			view1.setVisibility(View.GONE);
    			view2.setVisibility(View.VISIBLE);
    		}else{
    			view1.setVisibility(View.VISIBLE);
    			view2.setVisibility(View.GONE);
    		}
    	}
    	
    	public void setButtonText(CharSequence text) {
    		((TextView) findViewById(R.id.delete)).setText(text);
    	}
    
    	public void setContentView(View view) {
    		contentView = 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();
    		}
    	}
    
    }

ListViewCompat

package com.wsj.deletelistviewmainactivity;
    
    import com.wsj.deletelistviewmainactivity.DeleteListViewMainActivity.MessageItem;
    
    import android.content.Context;
    import android.util.AttributeSet;
    import android.util.Log;
    import android.view.MotionEvent;
    import android.view.View;
    import android.widget.ListView;
    
    
    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);
        }
    
    }

[demo下载][demo]

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/30/c597782f7ab04fa7bc1169e27ebf812c.png
[demo]: http://download.csdn.net/detail/onceing/9530602