Swiperefreshlayout不能刷新佈局

Question

swiperefreshlayout不能用於不同的視圖。我已經創建了主佈局，並在代碼中顯示了佈局。

<android.support.v4.widget.SwipeRefreshLayout 
     android:id="@+id/swipe_refresh_layout_home" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_below="@id/toolbar"> 

     <RelativeLayout 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:layout_below="@+id/toolbar"> 


      <android.support.v7.widget.RecyclerView 
       android:id="@+id/rv_post_list" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 

       > 

      </android.support.v7.widget.RecyclerView> 

      <include layout="@layout/layout_util" /> 
     </RelativeLayout> 
    </android.support.v4.widget.SwipeRefreshLayout> 

Answer 1

SwipeRefreshLayout僅支持單個ListView或GridView孩子。 Official src

所以，你可以嘗試SwipeRefreshMultipleViews

編輯：

首先在自定義類創建MultiSwipeRefreshLayout

public class MultiSwipeRefreshLayout extends SwipeRefreshLayout { 

    private View[] mSwipeableChildren; 

    public MultiSwipeRefreshLayout(Context context) { 
     super(context); 
    } 

    public MultiSwipeRefreshLayout(Context context, AttributeSet attrs) { 
     super(context, attrs); 
    } 

    /** 
    * Set the children which can trigger a refresh by swiping down when they are visible. These 
    * views need to be a descendant of this view. 
    */ 
    public void setSwipeableChildren(final int... ids) { 
     assert ids != null; 

     // Iterate through the ids and find the Views 
     mSwipeableChildren = new View[ids.length]; 
     for (int i = 0; i < ids.length; i++) { 
      mSwipeableChildren[i] = findViewById(ids[i]); 
     } 
    } 

    // BEGIN_INCLUDE(can_child_scroll_up) 

    /** 
    * This method controls when the swipe-to-refresh gesture is triggered. By returning false here 
    * we are signifying that the view is in a state where a refresh gesture can start. 
    * <p> 
    * <p>As {@link SwipeRefreshLayout} only supports one direct child by 
    * default, we need to manually iterate through our swipeable children to see if any are in a 
    * state to trigger the gesture. If so we return false to start the gesture. 
    */ 
    @Override 
    public boolean canChildScrollUp() { 
     if (mSwipeableChildren != null && mSwipeableChildren.length > 0) { 
      // Iterate through the scrollable children and check if any of them can not scroll up 
      for (View view : mSwipeableChildren) { 
       if (view != null && view.isShown() && !canViewScrollUp(view)) { 
        // If the view is shown, and can not scroll upwards, return false and start the 
        // gesture. 
        return false; 
       } 
      } 
     } 
     return true; 
    } 
    // END_INCLUDE(can_child_scroll_up) 

    // BEGIN_INCLUDE(can_view_scroll_up) 

    /** 
    * Utility method to check whether a {@link View} can scroll up from it's current position. 
    * Handles platform version differences, providing backwards compatible functionality where 
    * needed. 
    */ 
    private static boolean canViewScrollUp(View view) { 
     if (android.os.Build.VERSION.SDK_INT >= 14) { 
      // For ICS and above we can call canScrollVertically() to determine this 
      return ViewCompat.canScrollVertically(view, -1); 
     } else { 
      if (view instanceof AbsListView) { 
       // Pre-ICS we need to manually check the first visible item and the child view's top 
       // value 
       final AbsListView listView = (AbsListView) view; 
       return listView.getChildCount() > 0 && 
         (listView.getFirstVisiblePosition() > 0 
           || listView.getChildAt(0).getTop() < listView.getPaddingTop()); 
      } else { 
       // For all other view types we just check the getScrollY() value 
       return view.getScrollY() > 0; 
      } 
     } 
    } 
    // END_INCLUDE(can_view_scroll_up) 
} 

然後改變你的佈局是這樣，

<?xml version="1.0" encoding="utf-8"?> 
<in.muthu.stackoverflow.ui.widget.MultiSwipeRefreshLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/swiperefresh" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"> 

    <FrameLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 

     <FrameLayout 
      android:layout_width="match_parent" 
      android:layout_height="match_parent"> 

      <GridView 
       android:id="@+id/contact_screen_list" 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:numColumns="2" /> 

      <TextView 
       android:id="@android:id/empty" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:text="@string/empty_text" 
       android:layout_gravity="center"/> 

     </FrameLayout> 

    </FrameLayout> 
</in.muthu.stackoverflow.ui.widget.MultiSwipeRefreshLayout> 

注：與你的包

而且在Java代碼中，你應該這樣做，你的 MultiSwipeRefreshLayout改變in.muthu.stackoverflow.ui.widget，

mSwipeRefreshLayout = (MultiSwipeRefreshLayout) view.findViewById(R.id.swiperefresh); 

mSwipeRefreshLayout.setSwipeableChildren(R.id.contact_screen_list);