android WebView停止运行

发布于 2024-11-05 13:35:08 字数 782 浏览 0 评论 0原文

我的 WebView 控件遇到以下问题。我的 webview 在 Activity 中定义如下：

public class MyWebView extends Activity {
private WebView webview;
...

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.mywebview);
    ...
    webview = new WebView(getApplicationContext());
    webview.setWebChromeClient(new WebChromeClient() {   ...   });
    webview.setWebViewClient(new WebViewClient() {   ...   });                
    ...
    webview.loadUrl("http://www.google.de");
}

一切正常，网页已打开。但是，如果关闭活动（按下后退按钮）并返回到我的主菜单，WebView 似乎不会关闭。 http 线程继续运行。

如果我依次打开大约10个页面，网页不再加载，但WebView中显示“网页不可用”。

怎么了？如何关闭WebView？

webview.destroy();
webview = null;

例如不起作用。

原文

I have the following problem with a WebView Control.
My webview is defined in a Activity as follows:

public class MyWebView extends Activity {
private WebView webview;
...

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.mywebview);
    ...
    webview = new WebView(getApplicationContext());
    webview.setWebChromeClient(new WebChromeClient() {   ...   });
    webview.setWebViewClient(new WebViewClient() {   ...   });                
    ...
    webview.loadUrl("http://www.google.de");
}

Everything works fine, the Webpage is opened. But if close the Activity (Back-Button pressed) and go back to my main-menue, the WebView seems not to be closed. The http-threads keeps running.

If I open about 10 several pages one after another, the Webpages are not nonger loadet, but "Webpage not available" is displayd in the WebView.

What is wrong? How to close the WebView?