android中列表的滑动删除仿ios滑动删除

大家是不是觉得ios列表的滑动删除效果很酷炫？不用羡慕android也可以实现相同的效果

并且可以自定义效果，比如左滑删除，置顶，收藏，分享等等

其实就是自定义listview重写listview方法。废话不多少说，上干货：

这是封装好的listview重写方法

  1 import android.content.Context;
  2 import android.util.AttributeSet;
  3 import android.util.TypedValue;
  4 import android.view.MotionEvent;
  5 import android.view.View;
  6 import android.view.animation.Interpolator;
  7 import android.widget.ListAdapter;
  8 import android.widget.ListView;
  9 
 10 
 14 public class SwipeMenuListView extends ListView {
 15 
 16     private static final int TOUCH_STATE_NONE = 0;
 17     private static final int TOUCH_STATE_X = 1;
 18     private static final int TOUCH_STATE_Y = 2;
 19 
 20     public static final int DIRECTION_LEFT = 1;
 21     public static final int DIRECTION_RIGHT = -1;
 22     private int mDirection = 1;//swipe from right to left by default
 23 
 24     private int MAX_Y = 5;
 25     private int MAX_X = 3;
 26     private float mDownX;
 27     private float mDownY;
 28     private int mTouchState;
 29     private int mTouchPosition;
 30     private SwipeMenuLayout mTouchView;
 31     private OnSwipeListener mOnSwipeListener;
 32 
 33     private SwipeMenuCreator mMenuCreator;
 34     private OnMenuItemClickListener mOnMenuItemClickListener;
 35     private OnMenuStateChangeListener mOnMenuStateChangeListener;
 36     private Interpolator mCloseInterpolator;
 37     private Interpolator mOpenInterpolator;
 38 
 39     public SwipeMenuListView(Context context) {
 40         super(context);
 41         init();
 42     }
 43 
 44     public SwipeMenuListView(Context context, AttributeSet attrs, int defStyle) {
 45         super(context, attrs, defStyle);
 46         init();
 47     }
 48 
 49     public SwipeMenuListView(Context context, AttributeSet attrs) {
 50         super(context, attrs);
 51         init();
 52     }
 53 
 54     private void init() {
 55         MAX_X = dp2px(MAX_X);
 56         MAX_Y = dp2px(MAX_Y);
 57         mTouchState = TOUCH_STATE_NONE;
 58     }
 59 
 60     @Override
 61     public void setAdapter(ListAdapter adapter) {
 62         super.setAdapter(new SwipeMenuAdapter(getContext(), adapter) {
 63             @Override
 64             public void createMenu(SwipeMenu menu) {
 65                 if (mMenuCreator != null) {
 66                     mMenuCreator.create(menu);
 67                 }
 68             }
 69 
 70             @Override
 71             public void onItemClick(SwipeMenuView view, SwipeMenu menu,
 72                                     int index) {
 73                 boolean flag = false;
 74                 if (mOnMenuItemClickListener != null) {
 75                     flag = mOnMenuItemClickListener.onMenuItemClick(
 76                             view.getPosition(), menu, index);
 77                 }
 78                 if (mTouchView != null && !flag) {
 79                     mTouchView.smoothCloseMenu();
 80                 }
 81             }
 82         });
 83     }
 84 
 85     public void setCloseInterpolator(Interpolator interpolator) {
 86         mCloseInterpolator = interpolator;
 87     }
 88 
 89     public void setOpenInterpolator(Interpolator interpolator) {
 90         mOpenInterpolator = interpolator;
 91     }
 92 
 93     public Interpolator getOpenInterpolator() {
 94         return mOpenInterpolator;
 95     }
 96 
 97     public Interpolator getCloseInterpolator() {
 98         return mCloseInterpolator;
 99     }
100 
101     @Override
102     public boolean onInterceptTouchEvent(MotionEvent ev) {
103         return super.onInterceptTouchEvent(ev);
104     }
105 
106     @Override
107     public boolean onTouchEvent(MotionEvent ev) {
108         if (ev.getAction() != MotionEvent.ACTION_DOWN && mTouchView == null)
109             return super.onTouchEvent(ev);
110         int action = ev.getAction();
111         switch (action) {
112             case MotionEvent.ACTION_DOWN:
113                 int oldPos = mTouchPosition;
114                 mDownX = ev.getX();
115                 mDownY = ev.getY();
116                 mTouchState = TOUCH_STATE_NONE;
117 
118                 mTouchPosition = pointToPosition((int) ev.getX(), (int) ev.getY());
119 
120                 if (mTouchPosition == oldPos && mTouchView != null
121                         && mTouchView.isOpen()) {
122                     mTouchState = TOUCH_STATE_X;
123                     mTouchView.onSwipe(ev);
124                     return true;
125                 }
126 
127                 View view = getChildAt(mTouchPosition - getFirstVisiblePosition());
128 
129                 if (mTouchView != null && mTouchView.isOpen()) {
130                     mTouchView.smoothCloseMenu();
131                     mTouchView = null;
132                     // return super.onTouchEvent(ev);
133                     // try to cancel the touch event
134                     MotionEvent cancelEvent = MotionEvent.obtain(ev);
135                     cancelEvent.setAction(MotionEvent.ACTION_CANCEL);
136                     onTouchEvent(cancelEvent);
137                     if (mOnMenuStateChangeListener != null) {
138                         mOnMenuStateChangeListener.onMenuClose(oldPos);
139                     }
140                     return true;
141                 }
142                 if (view instanceof SwipeMenuLayout) {
143                     mTouchView = (SwipeMenuLayout) view;
144                     mTouchView.setSwipeDirection(mDirection);
145                 }
146                 if (mTouchView != null) {
147                     mTouchView.onSwipe(ev);
148                 }
149                 break;
150             case MotionEvent.ACTION_MOVE:
151                 float dy = Math.abs((ev.getY() - mDownY));
152                 float dx = Math.abs((ev.getX() - mDownX));
153                 if (mTouchState == TOUCH_STATE_X) {
154                     if (mTouchView != null) {
155                         mTouchView.onSwipe(ev);
156                     }
157                     getSelector().setState(new int[]{0});
158                     ev.setAction(MotionEvent.ACTION_CANCEL);
159                     super.onTouchEvent(ev);
160                     return true;
161                 } else if (mTouchState == TOUCH_STATE_NONE) {
162                     if (Math.abs(dy) > MAX_Y) {
163                         mTouchState = TOUCH_STATE_Y;
164                     } else if (dx > MAX_X) {
165                         mTouchState = TOUCH_STATE_X;
166                         if (mOnSwipeListener != null) {
167                             mOnSwipeListener.onSwipeStart(mTouchPosition);
168                         }
169                     }
170                 }
171                 break;
172             case MotionEvent.ACTION_UP:
173                 if (mTouchState == TOUCH_STATE_X) {
174                     if (mTouchView != null) {
175                         boolean isBeforeOpen = mTouchView.isOpen();
176                         mTouchView.onSwipe(ev);
177                         boolean isAfterOpen = mTouchView.isOpen();
178                         if (isBeforeOpen != isAfterOpen && mOnMenuStateChangeListener != null) {
179                             if (isAfterOpen) {
180                                 mOnMenuStateChangeListener.onMenuOpen(mTouchPosition);
181                             } else {
182                                 mOnMenuStateChangeListener.onMenuClose(mTouchPosition);
183                             }
184                         }
185                         if (!isAfterOpen) {
186                             mTouchPosition = -1;
187                             mTouchView = null;
188                         }
189                     }
190                     if (mOnSwipeListener != null) {
191                         mOnSwipeListener.onSwipeEnd(mTouchPosition);
192                     }
193                     ev.setAction(MotionEvent.ACTION_CANCEL);
194                     super.onTouchEvent(ev);
195                     return true;
196                 }
197                 break;
198         }
199         return super.onTouchEvent(ev);
200     }
201 
202     public void smoothOpenMenu(int position) {
203         if (position >= getFirstVisiblePosition()
204                 && position <= getLastVisiblePosition()) {
205             View view = getChildAt(position - getFirstVisiblePosition());
206             if (view instanceof SwipeMenuLayout) {
207                 mTouchPosition = position;
208                 if (mTouchView != null && mTouchView.isOpen()) {
209                     mTouchView.smoothCloseMenu();
210                 }
211                 mTouchView = (SwipeMenuLayout) view;
212                 mTouchView.setSwipeDirection(mDirection);
213                 mTouchView.smoothOpenMenu();
214             }
215         }
216     }
217 
218     public void smoothCloseMenu(){
219         if (mTouchView != null && mTouchView.isOpen()) {
220             mTouchView.smoothCloseMenu();
221         }
222     }
223 
224     private int dp2px(int dp) {
225         return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
226                 getContext().getResources().getDisplayMetrics());
227     }
228 
229     public void setMenuCreator(SwipeMenuCreator menuCreator) {
230         this.mMenuCreator = menuCreator;
231     }
232 
233     public void setOnMenuItemClickListener(
234             OnMenuItemClickListener onMenuItemClickListener) {
235         this.mOnMenuItemClickListener = onMenuItemClickListener;
236     }
237 
238     public void setOnSwipeListener(OnSwipeListener onSwipeListener) {
239         this.mOnSwipeListener = onSwipeListener;
240     }
241 
242     public void setOnMenuStateChangeListener(OnMenuStateChangeListener onMenuStateChangeLi        stener) {
243         mOnMenuStateChangeListener = onMenuStateChangeListener;
244     }
245 
246     public static interface OnMenuItemClickListener {
247         boolean onMenuItemClick(int position, SwipeMenu menu, int index);
248     }
249 
250     public static interface OnSwipeListener {
251         void onSwipeStart(int position);
252 
253         void onSwipeEnd(int position);
254     }
255 
256     public static interface OnMenuStateChangeListener {
257         void onMenuOpen(int position);
258 
259         void onMenuClose(int position);
260     }
261 
262     public void setSwipeDirection(int direction) {
263         mDirection = direction;
264     }
265 }

上面是自定义listview，下面叫大家怎么使用

在xml文件中需要使用listview方法时，不要直接用<listview/>改用<xxx.xx.xx.swipemenulistview.SwipeMenuListView

android:id="@+id/lv_my_case"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>前面xx是自己的包名例如cn.sy.gdxz

这只是准备工作，真正的业务操作在下面

private void initSlide() {
        // TODO Auto-generated method stub
        // step 1. 创建实例        
        SwipeMenuCreator creator = new SwipeMenuCreator() {
            @SuppressLint("ResourceAsColor")
            @Override

            public void create(SwipeMenu menu) {
                LogUtils.v("SwipeMenuCreator==create");
                SwipeMenuItem deleteItem = new SwipeMenuItem(
                        getApplicationContext());
                deleteItem.setBackground(new ColorDrawable(Color.rgb(0xF9,
                        0x3F, 0x25)));
                // set item width
                deleteItem.setWidth(dp2px(90));
                // set a icon图标
                                deleteItem.setIcon(R.drawable.ic_delete);
                //set a 标题
                deleteItem.setTitle("删除");
                deleteItem.setTitleSize(18);
                deleteItem.setTitleColor(getResources().getColor(R.color.white));
                // add to menu
                menu.addMenuItem(deleteItem);
            }
        };
        // set creator
        lv_my_case.setMenuCreator(creator);

        // step 2. listener item 点击事件
        lv_my_case.setOnMenuItemClickListener(new SwipeMenuListView.OnMenuItemClickListener() {
            

            @Override
            public boolean onMenuItemClick(int position, SwipeMenu menu, int index) {
                LogUtils.v("onMenuItemClick==position="+position+"index=="+index);
                switch (index) {
                case 0://
                    // open处理滑动事件
                    
                  //处理滑动处理的第一个事件，比如删除break;
                case 1:
//这里处理滑动出来的第二项比如收藏，置顶等等
       
                    break;
                }
                return false;
            }


        });
        // set SwipeListener

        lv_my_case.setOnSwipeListener(new SwipeMenuListView.OnSwipeListener() {

            @Override
            public void onSwipeStart(int position) {
                // swipe start
                LogUtils.v("onSwipeEnd+"+position);
            }

            @Override
            public void onSwipeEnd(int position) {
                // swipe end
                LogUtils.v("onSwipeEnd"+position);
            }
        });

        // set MenuStateChangeListener
        lv_my_case.setOnMenuStateChangeListener(new SwipeMenuListView.OnMenuStateChangeListener() {
            @Override
            public void onMenuOpen(int position) {
                LogUtils.v("onMenuOpen"+position);
            }

            @Override
            public void onMenuClose(int position) {
                LogUtils.v("onMenuClose"+position);
            }
        });

    }

    private int dp2px(int dp) {
          return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
          getResources().getDisplayMetrics());
   }

 

到这里滑动删除就分享完了。只是记录一下学习状态，不足之处大家互相交流，互相学习

posted @ 2016-01-09 16:02  有丶丶小帅  阅读(2872)  评论(1)  编辑  收藏  举报
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