Question

在我的应用程序中，我将创建listview，字符串的正常构造将如下：

   final ListView listview = (ListView) findViewById(R.id.listview);
String[] values = new String[] { "one", "two", "three",
    "four"};

但是我想在每行上添加html标签到文本，所以我必须将文本引用到字符串，如下所示：

one.setText(Html.fromHtml(getString(R.string.one)));
two.setText(Html.fromHtml(getString(R.string.two)));
three.setText(Html.fromHtml(getString(R.string.three)));
four.setText(Html.fromHtml(getString(R.string.four)));

我的意思是文本出现在列表视图行中可以创建如下：

  String[] values = new String[] { "one", "two", "three",
    "four"};

或者称为字符串arry如下：

<string-array name="days">
    <item>one</item>
    <item>two</item>
    <item>three</item>
    <item>four</item>
 </string-array>

但这不是我想要的，我想从字符串.xml中检索文本，这将由html标签自定义，但我不知道在课堂上写什么。

更新

AS回答如下：我这样做了：

MyArrayAdapter：

public class MyArrayAdapter extends ArrayAdapter<String> {
private final Activity context;
Typeface tf;
static class ViewHolder {
    public TextView text;
    }

public MyArrayAdapter(Activity context, String string) {
    super(context, R.layout.list_item);
    this.context = context;}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    tf=Typeface.createFromAsset(context.getAssets(),"BFantezy.ttf"); 
    View rowView = convertView;
    if (rowView == null) {
      LayoutInflater inflater = context.getLayoutInflater();
      rowView = inflater.inflate(R.layout.list_item, null);

      int resourceToUse = R.string.day1;;
    switch(position){
      case 1: 
          resourceToUse = R.string.day1;
          break;
      case 2: 
          resourceToUse = R.string.day2;
          break;              
      case 3: 
          resourceToUse = R.string.day3;
          break;
      case 4: 
          resourceToUse = R.string.day4;         
      }
      TextView mTextView = (TextView) rowView.findViewById(R.id.label);
      mTextView.setTypeface(tf); 
      mTextView.setText(Html.fromHtml(context.getString(resourceToUse)));}


    return rowView;}}

AndroidListViewActivity：

public class AndroidListViewActivity extends ListActivity {
private String resourceToUse;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

     setListAdapter(new MyArrayAdapter(this,resourceToUse));  
                      }    
         }

IT GAVE：java.lang.ClassNotFoundException

logcat的：

    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo
   {com.androidhive.androidlistview/com.androidhive.androidlistview.
   AndroidListViewActivity.java}:
   java.lang.ClassNotFoundException: 
     com.androidhive.androidlistview.AndroidListViewActivity.java 
     in loader dalvik.system.PathClassLoader[/data/app/com.androidhive.androidlistview-          1.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1573)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
    Caused by: java.lang.ClassNotFoundException:        
     com.androidhive.androidlistview.AndroidListViewActivity.
     java in loader dalvik.system.PathClassLoader
     [/data/app/com.androidhive.androidlistview-1.apk]
    at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1565)
... 11 more


          is there is any way to do it , any help will be appreciated , thanks

Answer 1

覆盖ArrayAdapter的getView方法，获取与ListView中项目位置相关联的TextView，然后根据当前位置设置String资源中的文本：

public View getView(int position, View convertView, ViewGroup parent) {
tf=Typeface.createFromAsset(context.getAssets(),"BFantezy.ttf"); 
View rowView = convertView;
if (rowView == null) {
  LayoutInflater inflater = context.getLayoutInflater();
  rowView = inflater.inflate(R.layout.list_item, null);
}
  int resourceToUse = R.string.day1;
switch(position){
  case 1: 
      resourceToUse = R.string.day1;
      break;
  case 2: 
      resourceToUse = R.string.day2;
      break;              
  case 3: 
      resourceToUse = R.string.day3;
      break;
  case 4: 
      resourceToUse = R.string.day4;
                         }

  TextView mTextView = (TextView) rowView.findViewById(R.id.label);
  mTextView.setTypeface(tf); 
  mTextView.setText(Html.fromHtml(context.getString(resourceToUse)));

  return rowView;  
}

Answer 2

你的问题不够明确。但据我所知，您希望在适配器的strings.xml中声明字符串数组。要首先执行此操作，您需要在strings.xml中创建一个类似于

的数组

<string-array name="numbers">
        <item>one</item>
        <item>two</item>
        <item>three</item>
        <item>four</item>
    </string-array>

然后您可以在代码中获取字符串数组

String values[] = getResources().getStringArray(R.array.numbers);

您可以在适配器的getView()中使用此值数组。我仍然不确定我是否回答了你的疑问。如果没有随意评论。

添加html标签以列出视图行文本

2 个答案: