Android ListView 向右和向左滑动以接受和拒绝

Android ListView Swipe Right and Left to Accept and Reject

我想开发一个列表视图,当从左向右滑动时 - 在左角显示一个接受(真实)图标(不可点击 - 从左向右滑动时仅显示颜色变化),如下图所示射击:

当我从左向右滑动时它会接受(调用 'accept' API), 当我从右向左滑动时,它会显示如下内容:

这是在 iOS 中完成的,但我在 Android 中找不到如何执行此操作,我尝试使用谷歌搜索但找不到我想要的内容。

我尝试了以下示例:http://www.tutecentral.com/android-swipe-listview/

但在那个例子中,当我从左向右和从右向左滑动时,相同的 onOpened(..) 方法被调用,所以不知道什么时候调用 accept 什么时候调用 reject API因为在任何类型的滑动上都会调用相同的方法。

而且我还希望接受(左侧)和拒绝(右侧)图像仅在我向左向右或向右向左滑动时显示,但是当我抬起手指时它们必须消失并且应显示整个 ListView(切勿同时显示两侧图像)。

所以任何人都请帮助我了解如何做到这一点。

我的问题有点混乱,但我不知道如何解释整个动画,所以我试着像上面那样解释。

如果有人能帮助我,将不胜感激。

看看 this 库,它将为您提供很好的示例并为您指明正确的方向。祝你好运。

解决方案编号 1 :

您必须执行以下操作才能达到 "near" 您的功能,

包装您的 ListView 的适配器

喜欢以下:

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Create an Adapter for your content
    String[] content = new String[20];
    for (int i=0;i<20;i++) content[i] = "Row "+(i+1);
    ArrayAdapter<String> stringAdapter = new ArrayAdapter<String>(
        this,
        R.layout.row_bg,
        R.id.text,
        new ArrayList<String>(Arrays.asList(content))
    );

   // Wrap your content in a SwipeActionAdapter
   mAdapter = new SwipeActionAdapter(stringAdapter);

   // Pass a reference of your ListView to the SwipeActionAdapter
   mAdapter.setListView(getListView());

   // Set the SwipeActionAdapter as the Adapter for your ListView
   setListAdapter(mAdapter);
  }

为每个滑动方向创建背景布局

喜欢以下:

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

   // Create an Adapter for your content
   String[] content = new String[20];
   for (int i=0;i<20;i++) content[i] = "Row "+(i+1);
   ArrayAdapter<String> stringAdapter = new ArrayAdapter<String>(
        this,
        R.layout.row_bg,
        R.id.text,
        new ArrayList<String>(Arrays.asList(content))
   );

   // Wrap your content in a SwipeActionAdapter
   mAdapter = new SwipeActionAdapter(stringAdapter);

   // Pass a reference of your ListView to the SwipeActionAdapter
   mAdapter.setListView(getListView());

   // Set the SwipeActionAdapter as the Adapter for your ListView
   setListAdapter(mAdapter);

   // Set backgrounds for the swipe directions
    mAdapter.addBackground(SwipeDirections.DIRECTION_FAR_LEFT,R.layout.row_bg_left_far)
          .addBackground(SwipeDirections.DIRECTION_NORMAL_LEFT,R.layout.row_bg_left)
         .addBackground(SwipeDirections.DIRECTION_FAR_RIGHT,R.layout.row_bg_right_far)
        .addBackground(SwipeDirections.DIRECTION_NORMAL_RIGHT,R.layout.row_bg_right);
}

您从这里获得了库和示例: https://github.com/wdullaer/SwipeActionAdapter

这不会完全像您想要的那样,但我希望这对您实现功能有很大帮助。

解决方案编号 2 :

解决方案 2 是关于更改您使用的代码中的一些代码:http://www.tutecentral.com/android-swipe-listview/

我已经尝试了 link http://www.tutecentral.com/android-swipe-listview/ 中的代码并更改了一些代码并成功解决了关于 onOpened(..) 方法(从左到右调用,反之亦然)的问题(你的困惑) )

第一个变化:

  1. custom_row.xml 布局文件有三个按钮 swipe_button1 到 3 , 删除中间部分。

  2. 复制粘贴以下代码以保留两个按钮:

    <Button
        android:id="@+id/swipe_button1"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:background="@drawable/your_accept_image" />
    
    <Button
        android:id="@+id/swipe_button3"
        style="@style/MyListButtonAction"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:background="@drawable/your_reject_image" />
    

此布局的代码保持不变。

第二个变化:

现在您的接受和拒绝以及列表代码已准备就绪,现在讨论 onOpened(..) 方法。

混淆解决方案 1- 你告诉过,你的 onOpend(...) 方法从左到右和反之亦然

-> 仅更改以下内容:

public void onOpened(int position, boolean toRight) {

            if(toRight)
            {

                //  for left to right your api calling here
                swipelistview.closeAnimate(position);
            }
            else
            {
                // for right to left your api calling here
                swipelistview.closeAnimate(position);
            }


        }

混淆解决方案 2 当我抬起手指时,它必须显示整个列表视图,或者列表视图的边应该保留它的角,这样它就不起作用了

-> 我已经在上面回答过了

调用了swipelistview.closeAnimate(position);在这两个if else中,当你左右滑动时它会隐藏左接受和右拒绝图像。

所以最终代码如下:

整个cutom_row.xml布局

 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent" >

  <RelativeLayout
    android:id="@+id/back"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:tag="back" >

    <Button
        android:id="@+id/swipe_button1"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:background="@drawable/accept_image" />

    <Button
        android:id="@+id/swipe_button3"
        style="@style/MyListButtonAction"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:background="@drawable/reject_image" />
</RelativeLayout>


<RelativeLayout
    android:id="@+id/front"
    style="@style/MyListFrontContent"
    android:orientation="vertical"
    android:tag="front" >

    <ImageView
        android:id="@+id/example_image"
        style="@style/MyListImage" />

    <TextView
        android:id="@+id/example_itemname"
        style="@style/MyListTitle"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/example_image" />
  </RelativeLayout>

</FrameLayout>

整个MainActivity.java

public class MainActivity extends Activity {

SwipeListView swipelistview;
ItemAdapter adapter;
List<ItemRow> itemData;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    swipelistview=(SwipeListView)findViewById(R.id.example_swipe_lv_list); 
    itemData=new ArrayList<ItemRow>();
    adapter=new ItemAdapter(this,R.layout.custom_row,itemData);

    swipelistview.setSwipeListViewListener(new BaseSwipeListViewListener() {
        @Override
        public void onOpened(int position, boolean toRight) {

            if(toRight)
            {

                //  for left to right your api calling here
                swipelistview.closeAnimate(position);
            }
            else
            {
                // for right to left your api calling here
                swipelistview.closeAnimate(position);
            }


        }

        @Override
        public void onClosed(int position, boolean fromRight) {
            // close list slide
        }

        @Override
        public void onListChanged() {

        }

        @Override
        public void onMove(int position, float x) {


        }

        @Override
        public void onStartOpen(int position, int action, boolean right) {
            Log.d("swipe", String.format("onStartOpen %d - action %d", position, action));



        }

        @Override
        public void onStartClose(int position, boolean right) {
            Log.d("swipe", String.format("onStartClose %d", position));


        }

        @Override
        public void onClickFrontView(int position) {
            Log.d("swipe", String.format("onClickFrontView %d", position));




        }

        @Override
        public void onClickBackView(int position) {
            Log.d("swipe", String.format("onClickBackView %d", position));

            swipelistview.closeAnimate(position);//when you touch back view it will close

        }

        @Override
        public void onDismiss(int[] reverseSortedPositions) {

        }

    });

    //These are the swipe listview settings. you can change these
    //setting as your requirement 
    swipelistview.setSwipeMode(SwipeListView.SWIPE_MODE_BOTH); // there are five swiping modes
    //    swipelistview.setSwipeActionLeft(SwipeListView.SWIPE_ACTION_DISMISS); //there are four swipe actions 
    swipelistview.setSwipeActionRight(SwipeListView.SWIPE_ACTION_REVEAL);
    swipelistview.setOffsetLeft(convertDpToPixel(0f)); // left side offset
    swipelistview.setOffsetRight(convertDpToPixel(80f)); // right side offset
    swipelistview.setAnimationTime(500); // Animation time
    swipelistview.setSwipeOpenOnLongPress(true); // enable or disable SwipeOpenOnLongPress

    swipelistview.setAdapter(adapter);


    for(int i=0;i<10;i++)
    {
        itemData.add(new ItemRow("Swipe Item"+ i,getResources().getDrawable(R.drawable.ic_launcher) ));

    }

    adapter.notifyDataSetChanged();
}

public int convertDpToPixel(float dp) {
    DisplayMetrics metrics = getResources().getDisplayMetrics();
    float px = dp * (metrics.densityDpi / 160f);
    return (int) px;
}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

 }

其他代码和库保持不变,对你和其他人都有帮助,所以享受。

它对我有用......我希望它对你有用......!

将 OnTouchListener 设置为列表视图

listview.setOnTouchListener(new OnSwipeTouchListener(getActivity(),
            listview));

OnSwipeTouchListenerclass如下:

public class OnSwipeTouchListener implements OnTouchListener {

    ListView list;
    private GestureDetector gestureDetector;
    private Context context;

    public OnSwipeTouchListener(Context ctx, ListView list) {
        gestureDetector = new GestureDetector(ctx, new GestureListener());
        context = ctx;
        this.list = list;
    }

    public OnSwipeTouchListener() {
        super();
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        return gestureDetector.onTouchEvent(event);
    }

    public void onSwipeRight(int pos) {
        //Do what you want after swiping left to right

    }

    public void onSwipeLeft(int pos) {

        //Do what you want after swiping right to left
    }

    private final class GestureListener extends SimpleOnGestureListener {

        private static final int SWIPE_THRESHOLD = 100;
        private static final int SWIPE_VELOCITY_THRESHOLD = 100;

        @Override
        public boolean onDown(MotionEvent e) {
            return true;
        }

        private int getPostion(MotionEvent e1) {
            return list.pointToPosition((int) e1.getX(), (int) e1.getY());
        }

        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2,
                float velocityX, float velocityY) {
            float distanceX = e2.getX() - e1.getX();
            float distanceY = e2.getY() - e1.getY();
            if (Math.abs(distanceX) > Math.abs(distanceY)
                    && Math.abs(distanceX) > SWIPE_THRESHOLD
                    && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
                if (distanceX > 0)
                    onSwipeRight(getPostion(e1));
                else
                    onSwipeLeft(getPostion(e1));
                return true;
            }
            return false;
        }

    }
}

请避免使用上述方法,否则您将用视图逻辑完全填充控制器(这是您必须避免的事情)访问 https://github.com/xenione/SwipeLayout 有一个带有一些示例的刷卡器

基于@Pratibha Sarode 解决方案,我按照以下方式对其进行了调整,其中包含一个包含游标适配器和数据库的列表视图: 主要 activity :

  //-- Attach cursor adapter to the ListView
    lvItems.setAdapter(todoAdapter);
    /////////////////// Swipe Management
    lvItems.setOnTouchListener(new OnSwipeList(AfficList.this,lvItems){
        public void onSwipeRight(int pos) {
            AnnonceDbHandler dbHandler = new AnnonceDbHandler(AfficList.this, null, null, 1);
            String sIdAnn=dbHandler.RechercheIdIndex(pos);
            //Toast.makeText(AfficList.this, "Right ("+pos+") : "+sIdAnn, Toast.LENGTH_SHORT).show();
            dbHandler.deleteAnnonce(sIdAnn, AfficList.this);
            Cursor NewCursor = dbAnnonces.rawQuery("SELECT  * FROM annonces", null);
            todoAdapter.swapCursor(NewCursor);
            lvItems.setAdapter(todoAdapter);
            todoAdapter.notifyDataSetChanged();
        }
        public void onSwipeLeft(int pos) {
            AnnonceDbHandler dbHandler = new AnnonceDbHandler(AfficList.this, null, null, 1);
            String sIdAnn=dbHandler.RechercheIdIndex(pos);
            //Toast.makeText(AfficList.this, "Right ("+pos+") : "+sIdAnn, Toast.LENGTH_SHORT).show();
            dbHandler.deleteAnnonce(sIdAnn, AfficList.this);
            Cursor NewCursor = dbAnnonces.rawQuery("SELECT  * FROM annonces", null);
            todoAdapter.swapCursor(NewCursor);
            lvItems.setAdapter(todoAdapter);
            todoAdapter.notifyDataSetChanged();
        }
    });

通过滑动移动删除线条效果很好!

使用 处的答案,我做到了。

View.OnTouchListener swipeListener = new View.OnTouchListener() {
    private float dx;

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                dx = v.getX() - event.getRawX();
                break;
            case MotionEvent.ACTION_MOVE:
                // You can limit x-coordinate.
                float x = Math.min(event.getRawX() + dx, 0);
                // x = Math.max(x, ((View) v.getParent()).getWidth() - v.getWidth()); // Scroll if layout is wider than screen.
                v.animate()
                        .x(x)
                        .setDuration(0)
                        .start();
                break;
            default:
                return false;
        }
        return true;
    }
};

在您的适配器的 getView 中写入:

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    final ViewHolder viewHolder;
    if (convertView == null) {
        convertView = inflater.inflate(R.layout.item_layout, false);
        viewHolder = new ViewHolder(convertView);
        convertView.setTag(viewHolder);
    } else {
        viewHolder = (ViewHolder) convertView.getTag();
    }

    // Fill data.
    final Item item = items.get(position);
    viewHolder.caption.setText(item.getCaption());
    // Set onTouch listener.
    convertView.setOnTouchListener(swipeListener);
    return convertView;
}

我认为在 item_layout.xml 中使用 Horizo​​ntalScrollView 也可以实现同样的效果。

Java中这样:

1- 在您的 activity

中添加此 class

2-定义左右移动两个函数

 class MyGestureDetector extends GestureDetector.SimpleOnGestureListener {
        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            if (e1 == null || e2 == null)
                return false;
            if (Math.abs(e1.getY() - e2.getY()) > REL_SWIPE_MAX_OFF_PATH)
                return false;
            if (e1.getX() - e2.getX() > REL_SWIPE_MIN_DISTANCE &&
                    Math.abs(velocityX) > REL_SWIPE_THRESHOLD_VELOCITY) {
                onRTLFling(e1);
            } else if (e2.getX() - e1.getX() > REL_SWIPE_MIN_DISTANCE &&
                    Math.abs(velocityX) > REL_SWIPE_THRESHOLD_VELOCITY) {
                onLTRFling(e1);
            }
            return false;
        }

    }