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I have some WebView widgets inside my Activity. I use loadData() to set the content, and this html contains a link. Some of my WebViews work okay, when I click the link, the web browser is started in a new window, but some make my app crash when I click on a link.
10-13 08:45:24.257: ERROR/AndroidRuntime(751): Uncaught handler: thread main exiting due to uncaught exception
10-13 08:45:24.308: ERROR/AndroidRuntime(751): android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at android.app.ApplicationContext.startActivity(ApplicationContext.java:627)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at android.content.ContextWrapper.startActivity(ContextWrapper.java:236)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at android.webkit.CallbackProxy.uiOverrideUrlLoading(CallbackProxy.java:185)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:277)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at android.os.Handler.dispatchMessage(Handler.java:99)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at android.os.Looper.loop(Looper.java:123)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at android.app.ActivityThread.main(ActivityThread.java:3948)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at java.lang.reflect.Method.invokeNative(Native Method)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at java.lang.reflect.Method.invoke(Method.java:521)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
10-13 08:45:24.308: ERROR/AndroidRuntime(751): at dalvik.system.NativeStart.main(Native Method)
There seems to be a problem with the Intent that the WebView fires when I click the URL, but I have no control of this Intent, I think.
Does anybody have any idea?
I use this AsyncTask to set the content in the WebView, and it works fine:
public class SetAdTask extends AsyncTask<Void, Void, String>{
private Main main;
private WebView webView;
public SetAdTask(Main main, WebView webView){
this.main = main;
this.webView = webView;
}
protected void onPreExecute() {
Main.Log("onPreExecute()");
}
protected String doInBackground(Void... params) {
Main.Log("doInBackground()");
return main.getRestClient().getAdCode();
}
protected void onPostExecute(String result) {
Main.Log("onPostExecute()");
String html = "<html><head><title>ad</title></head><body>";
html += "<div style=\"color:grey;font-size:12px;\">ADVERTISEMENT<br/>";
html += result;
html += "</body></html>";
webView.loadData(html, "text/html", "latin-1");
}
}
372
The problem was that my webview was initialized with wrong context...
i used:
WebView w = new WebView(this.getApplicationContext())
which crashes...
the correct context is the activity itself
WebView w = new WebView(this)
153
If you don't want to use an activity as your context, another (surprising) solution to this problem is to set up an empty WebViewClient for the WebView:
webView.setWebViewClient(new WebViewClient());
It seems like an Android bug: according to the API you may use a context object to initialize a webview (but this might cause the bug you've mentioned).
38
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