添加fillViewport = true後ListView無法滾動的ScrollView

我已經將fillViewport設置爲true以使ListView具有正確的大小，但這會導致ScrollView停止滾動。它適用於如果我使用固定大小的listView，但我不想listViews可滾動。添加fillViewport = true後ListView無法滾動的ScrollView

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
tools:context="com.example.pascal.x" 
android:background="#FFFFFF"> 

<!-- TODO: Update blank fragment layout --> 

<LinearLayout 
    android:orientation="vertical" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"> 

    <Button 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:text="+ add stuff" 
     android:id="@+id/button" 
     android:background="#00AEEF" 
     android:textColor="#FFF" 
     android:layout_gravity="center_horizontal|top" /> 

    <ScrollView 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:fillViewport="false" 
     android:layout_gravity="center_horizontal|bottom" 
     android:scrollbars="vertical" 
     android:id="@+id/scrollView" > 

     <LinearLayout 
      android:orientation="vertical" 
      android:scrollbars="vertical" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content"> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_margin="15dp" 
       android:textAppearance="?android:attr/textAppearanceLarge" 
       android:text="stuff" 
       android:id="@+id/textView" 
       android:textColor="#00AEEF" /> 

      <ListView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_margin="15dp" 
       android:id="@+id/listView" 
       android:layout_gravity="center_horizontal" /> 

      <TextView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_margin="15dp" 
       android:textAppearance="?android:attr/textAppearanceLarge" 
       android:text="other stuff" 
       android:id="@+id/textView2" 
       android:textColor="#00AEEF" /> 

      <ListView 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_margin="15dp" 
       android:id="@+id/listView2" /> 

     </LinearLayout> 
    </ScrollView> 
</LinearLayout>

來源

2015-05-07 Pascal

根據列表視圖中可用子視圖的數量動態設置listview的高度。 – Napolean

我找到了解決我的問題就在這裏： https://stackoverflow.com/a/3495908/4743291

public class Utility { 
    public static void setListViewHeightBasedOnChildren(ListView listView) { 
      ListAdapter listAdapter = listView.getAdapter(); 
     if (listAdapter == null) { 
     // pre-condition 
       return; 
     } 

     int totalHeight = listView.getPaddingTop() + listView.getPaddingBottom(); 
     for (int i = 0; i < listAdapter.getCount(); i++) { 
      View listItem = listAdapter.getView(i, null, listView); 
      if (listItem instanceof ViewGroup) { 
       listItem.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); 
      } 
      listItem.measure(0, 0); 
      totalHeight += listItem.getMeasuredHeight(); 
     } 

     ViewGroup.LayoutParams params = listView.getLayoutParams(); 
     params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1)); 
        listView.setLayoutParams(params); 
    } 
}

來源

2015-05-07 10:09:52 Pascal

幹得好，接受你自己的答案，所以它會幫助別人 –

使用該視圖，而不是列表視圖

import android.content.Context; 
import android.util.AttributeSet; 
import android.view.ViewGroup; 
import android.widget.ListView; 

public class ExpandableListView extends ListView { 

boolean expanded = true; 

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

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

    public ExpandableListView(Context context, AttributeSet attrs, int defStyle)  
{ 
    super(context, attrs, defStyle); 
} 

public boolean isExpanded() { 
    return expanded; 
} 

@Override 
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 
    // HACK! TAKE THAT ANDROID! 
    if (isExpanded()) { 
     // Calculate entire height by providing a very large height hint. 
     // View.MEASURED_SIZE_MASK represents the largest height possible. 
     int expandSpec = MeasureSpec.makeMeasureSpec(MEASURED_SIZE_MASK, MeasureSpec.AT_MOST); 
     super.onMeasure(widthMeasureSpec, expandSpec); 

     ViewGroup.LayoutParams params = getLayoutParams(); 
     params.height = getMeasuredHeight(); 
    } else { 
     super.onMeasure(widthMeasureSpec, heightMeasureSpec); 
    } 
} 




}

使用此作爲XML

<yourpackagename(where you put this file).ExpandableListView 
..... 
..... 
...../>

來源

2015-05-07 11:06:08

添加fillViewport = true後ListView無法滾動的ScrollView

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