两个ListViews＆ScrollView

Question

我在这里很近，我尝试了很多东西，但无法让它工作。我在这里有两个列表视图。我想要的是每个listview显示其整个内容。我不希望列表视图滚动。我想要保持列表视图可滚动的滚动视图。最近我已经能够得到它（这是错误的），以便每个listview是可滚动的。这意味着每个listview只显示为1 1/2个单元格。我认为这将是一件简单的事情，但Android有一些奇怪的事情发生。

因此，每个列表视图都会显示其全部内容，即使内容高度超过了屏幕。然后，我所要做的就是向下滚动查看显示其全部内容的第二个列表视图。

<?xml version="1.0" encoding="utf-8"?> 
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_height="fill_parent" 
android:layout_width="wrap_content" 
android:orientation="vertical" 
android:fillViewport="true"> 
<LinearLayout 
android:layout_height="fill_parent" 
android:layout_width="wrap_content" 
android:orientation="vertical" 
android:fillViewport="true"> 
<LinearLayout 
android:layout_weight="10" 
android:orientation="vertical" 
android:layout_height="wrap_content" 
android:layout_width="fill_parent"> 
<TextView 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:background="#CCCCCC" 
android:text="@string/alerts_top_title" 
android:gravity="center" 
android:textColor="#000000" 
android:layout_centerVertical="true" 
android:layout_centerHorizontal="true"> 
</TextView> 
<ListView 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:id="@+id/cameraListAlerts" > 
</ListView> 
</LinearLayout> 
<LinearLayout 
android:layout_weight="10" 
android:orientation="vertical" 
android:layout_height="wrap_content" 
android:layout_width="fill_parent"> 
<TextView 
android:gravity="center" 
android:layout_centerVertical="true" 
android:layout_centerHorizontal="true" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:background="#CCCCCC" 
android:textColor="#000000" 
android:text="@string/alerts_bottom_title"> 
</TextView> 
<LinearLayout 
android:layout_width="fill_parent" 
android:layout_height="8dp"> 
</LinearLayout> 
<Button 
android:id="@+id/addRecipient" 
android:layout_height="50dp" 
android:layout_width="fill_parent" 
android:layout_centerHorizontal="true" 
android:text="@string/addRecipient"/> 

<ListView 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:id="@+id/recipientListAlerts" > 
</ListView> 
</LinearLayout> 
</LinearLayout> 
</ScrollView> 

Answer 1

你会花费更多的时间和精力，试图让它工作。 ListView存在处理需要太多资源一次绘制的长列表。当您滚动浏览行视图时，它们会循环查看行视图以允许快速加载。你试图抛弃这个功能，从而使你对ListView的使用毫无意义。

以编程方式填充LinearLayout根本没什么大不了的。你的行有XML文件吗？当您通过您的Array或while循环运行一个非常简单的for循环时，通过您的光标，绑定数据并将其添加到您的LinearLayout，为每个新行充气。

完成。没有滚动问题......它全部由ScrollView处理，就像它应该一样。

Answer 2

试试这个，

private ListView first, second; 
private String check=""; 
String[] COUNTRIES = new String[] { "Afghanistan", "Albania", 
     "Algeria", "American Samoa", "Andorra", "Angola", "Anguilla", 
     "Antarctica", "Antigua and Barbuda", "Argentina", "Armenia", 
     "Aruba", "Australia", "Austria", "Azerbaijan", "Bahrain", 
     "Montserrat", "Morocco", 
     "Mozambique", "Myanmar", "Namibia", "Nauru", "NepalA", 
     "Montserrat", "MoroccoF", 
     "Mozambique", "Myanmar", "Namibia", "Nauru", "NepalB", 
     "Montserrat", "MoroccoD", 
     "Mozambique", "Myanmar", "Namibia", "Nauru", "NepalC", 

}; 

String[] COUNTRIES1 = new String[] { "Martinique", 
     "Mauritania", "Mauritius", "Mayotte", "Mexico", "Micronesia", 
     "Moldova", "Monaco", "Mongolia", "Montserrat", "Morocco", 
     "Mozambique", "Myanmar", "Namibia", "Nauru", "Nepal", }; 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    first = (ListView) findViewById(R.id.firstlist); 
    second = (ListView) findViewById(R.id.secondlist); 

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, 
      android.R.layout.simple_list_item_1, COUNTRIES); 
    ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this, 
      android.R.layout.simple_list_item_1, COUNTRIES1); 

    first.setAdapter(adapter); 
    second.setAdapter(adapter1); 

    second.setOnTouchListener(new OnTouchListener() { 
    @Override 
    public boolean onTouch(View arg0, MotionEvent arg1) { 
     check="second"; 
    return false; 
    } 
     }); 

    first.setOnTouchListener(new OnTouchListener() { 
     @Override 
     public boolean onTouch(View arg0, MotionEvent arg1) { 
      check="first"; 
     return false; 
     } 
      }); 
    first.setOnScrollListener(newScrollEvent); 
    second.setOnScrollListener(newScrollEvent); 
} 

private OnScrollListener newScrollEvent = new OnScrollListener() { 

    @Override 
    public void onScrollStateChanged(AbsListView view, int scrollState) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onScroll(AbsListView view, int firstVisibleItem, 
      int visibleItemCount, int totalItemCount) { 
     // TODO Auto-generated method stub 
     if(check.equalsIgnoreCase("first")){ 
     System.out.println("first"); 

     if (first.getChildAt(0) != null) { 
     Rect r1 = new Rect(); 
     first.getChildVisibleRect(first.getChildAt(0), r1, null); 
     second.setSelectionFromTop(first.getFirstVisiblePosition(), 
     r1.top); 
     } 
     } 
     else if(check.equalsIgnoreCase("second")){ 
     if (second.getChildAt(0) != null) { 
     Rect r1 = new Rect(); 
     second.getChildVisibleRect(second.getChildAt(0), r1, null); 
     first.setSelectionFromTop(second.getFirstVisiblePosition(), 
     r1.top); 
     } 
     } 
    } 
}; 

Answer 3

在运行时创建这样的方式滚动视图。

//find parent xml layout 
     LinearLayout lL1 =(LinearLayout)rootView.findViewById(R.id.pro_scroll); 

     //Create ScrollView programatically 
      ScrollView _scrollView = new ScrollView(appContext); 
      _scrollView.setBackgroundColor(Color.WHITE); 
      _scrollView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, 
    LayoutParams.MATCH_PARENT)); 

     ViewGroup layout=new LinearLayout(appContext); 
          layout.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); 

//add scrollview to layout 
          layout.addView(_scrollView); 
//add layout to xml parent layout 
          lL1.addView(layout);