带有网络视图的列表视图 [英] Listview with webview

问题描述

我正在尝试创建一个带有 Webview 的 ListView，但该应用程序没有显示任何内容.这是我的代码:

i'm trying to create a ListView with a Webview inside, but the app shows nothing. Here my Code:

我设置 CustomAdapter 的 MainActivity

The MainActivity where I set the CustomAdapter

    public class Web_in_list1Activity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ListView lv = (ListView)findViewById(R.id.listView2);
    ListViewAdapter adapter = new ListViewAdapter(this);

    lv.setAdapter(adapter);

    }
    }

自定义适配器的getView在这里，我获取了 ListView 的布局并获取了 Webview 的 URL

getView of the CustomAdapter Here I get the Layout for the ListView and ste the URL for the Webview

    public View getView(int arg0, View convertView, ViewGroup arg2) {
    // TODO Auto-generated method stub

    LayoutInflater inflater =  context.getLayoutInflater();
    convertView = inflater.inflate(R.layout.listitem, null);

    WebView wv = (WebView)convertView.findViewById(R.id.webview);
    wv.getSettings().setJavaScriptEnabled(true);
            wv.loadUrl("http://www.google.com");

            convertView.setTag(wv);

    return convertView;
}

main.xml

     <?xml version="1.0" encoding="utf-8"?>

     <LinearLayout 
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_height="fill_parent"
        android:layout_width="fill_parent"
        android:orientation="vertical">

    <ListView
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_height="fill_parent"
            android:id="@+id/listView2"
            android:layout_width="fill_parent"/>
     </LinearLayout>

列表项.xml

    <?xml version="1.0" encoding="utf-8"?>

    <LinearLayout 
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_height="fill_parent"
        android:layout_width="fill_parent"
        android:orientation="vertical">


    <WebView  

            android:id="@+id/webview"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"/>
    </LinearLayout>

关闭！问题通过滚动视图解决

CLOSED! PROBLEM SOLVED WITH A SCROLLVIEW

推荐答案

我正在尝试创建一个带有 Webview 的 ListView

i'm trying to create a ListView with a Webview inside

你不能把可滚动的东西可靠地放在其他可滚动的东西里面.因此，您不能可靠地:

You cannot reliably put scrollable things inside of other scrollable things. Hence, you cannot reliably:

• 在 ListView 行中放置一个 WebView
• 在 ListView 行中放置一个 ScrollView
• 将 WebView 放入 ScrollView
• 将 ListView 放入 ScrollView

• Put a WebView in a ListView row
• Put a ScrollView in a ListView row
• Put a WebView in a ScrollView
• Put a ListView in a ScrollView

此外，WebView 是一个非常重量级的小部件，并没有设计成有大量的副本.请考虑使用 TextView 进行轻量级 HTML 渲染.

Moreover, a WebView is a very heavyweight widget and is not designed to have lots of copies floating around. Please consider using TextView for lightweight HTML rendering.

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