检测 Webview 错误并显示消息 [英] Detecting Webview Error and Show Message
本文介绍了检测 Webview 错误并显示消息的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想在加载 Web 视图页面(无连接)时出现错误时显示错误消息.这是我到目前为止所拥有的,没有错误处理代码:
I'd like to show an error message when there is an error loading a webview page (No connection). This is what I have so far, without the error handling code:
public class TrackerPage extends Activity {
// @Override
private WebView webview;
private ProgressDialog progressDialog;
private boolean error;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get rid of the android title bar
requestWindowFeature(Window.FEATURE_NO_TITLE);
// Set the XML layout
setContentView(R.layout.tracker_page);
// Bundle objectbundle = this.getIntent().getExtras();
webview = (WebView) findViewById(R.id.tracker);
final Activity activity = this;
// Enable JavaScript and lets the browser go back
webview.getSettings().setJavaScriptEnabled(true);
webview.canGoBack();
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onLoadResource(WebView view, String url) {
// Check to see if there is a progress dialog
if (progressDialog == null) {
// If no progress dialog, make one and set message
progressDialog = new ProgressDialog(activity);
progressDialog.setMessage("Loading please wait...");
progressDialog.show();
// Hide the webview while loading
webview.setEnabled(false);
}
}
public void onPageFinished(WebView view, String url) {
// Page is done loading;
// hide the progress dialog and show the webview
if (progressDialog.isShowing()) {
progressDialog.dismiss();
progressDialog = null;
webview.setEnabled(true);
}
}
});
// The URL that webview is loading
webview.loadUrl("http://url.org/");
}
}
我该怎么做?
推荐答案
以上所有答案均已弃用.您应该在页面完成后使用此代码
All answer above are deprecated. You should use this code after on Page finished
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error){
//Your code to do
Toast.makeText(getActivity(), "Your Internet Connection May not be active Or " + error.getDescription(), Toast.LENGTH_LONG).show();
}
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