我想开发一个列表视图,当从左到右滑动时-在左角显示一个接受(真)图标(不可单击-从左到右滑动时仅显示一个颜色更改),如以下屏幕截图:
当我从左向右滑动时,它将接受(调用“accept”api)。
当我从右向左滑动时,它将显示如下内容:
这是在ios中完成的,但我找不到如何在android中完成,我尝试了google,但找不到我想要的东西。
我尝试了以下示例:http://www.tutecentral.com/android-swipe-listview/
但是在这个例子中,当我从左到右和从右到左滑动时,会调用同一个onopened(..)方法,所以很难知道何时调用accept和何时调用reject api,因为在任何类型的滑动上都会调用同一个方法。
我还希望只在我左右或左右滑动时显示接受(左侧)和拒绝(右侧)图像,但当我抬起手指时,它们必须消失,并且应显示整个列表视图(永远不要同时显示两侧图像)。
所以请任何人帮我理解怎么做。
我的问题有点混乱,但我不知道如何解释整个动画,所以我试图像上面这样解释。
如果有人能帮助我,我将不胜感激。

最佳答案

解决方案1:
你要想接近你的功能,你必须做如下的事情,
包装ListView的适配器
如下所示:

  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
如下所示:
  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);
}

这里有库和示例:
https://github.com/wdullaer/SwipeActionAdapter
这并不是你想要的那样,但是我希望这能帮助你实现你的功能。
解决方案2:
解决方案2是更改已用代码中的某些代码:http://www.tutecentral.com/android-swipe-listview/
我从linkhttp://www.tutecentral.com/android-swipe-listview/中尝试了您的代码,并更改了一些代码,成功地解决了您关于onopened(..)方法的问题(您的困惑)(从左到右调用,反之亦然)
第一次更改:
custom_row.xml布局文件有三个按钮:从1到3,
去掉中间部分。
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。
第二次更改:
所以现在您的接受和拒绝列表代码已经准备好了,现在讨论onopened(..)方法。
混淆解决方案1-你说过,你的onopend(…)方法调用了相同的从左到右和从左到右的顺序
->只需更改以下内容:
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当我拿起手指时,它必须显示整个listview或者listview的边应该保留它的角,这样它就不工作了
->我已经在上面回答过了
称为swipelistview.closeanimate(position);否则,当您左右滑动时,它会隐藏左接受和右拒绝图像。
因此,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,它对您和其他人也有帮助,所以请享受。

10-07 19:45
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