Set loadURLTImeOutValue on WebView
I'm working with PhoneGap and Android and have my .html and js files on an external server. When I use the following code, the app loads my external .html files and everything works fine:
this.setIntegerProperty("loadUrlTimeoutValue", 60000);
this.loadUrl("http://www.myserver.com");
However, when work via a WebView
I can't seem to set the loadURLTimeoutValue
for a WebView
:
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try {
webView = (WebView) findViewById(R.id.webview);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.loadUrl("http://www.myserver.com");
}
This doesn't work. How can I set the timeout value on the WebView
?
This is a workaround to simulate the described behavior. You can use a WebViewClient
, and override the onPageStarted
method:
public class MyWebViewClient extends WebViewClient {
boolean timeout;
public MyWebViewClient() {
timeout = true;
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
new Thread(new Runnable() {
@Override
public void run() {
timeout = true;
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
if(timeout) {
// do what you want
}
}
}).start();
}
@Override
public void onPageFinished(WebView view, String url) {
timeout = false;
}
}
If timeout, you can load, for example, an error page...
To add the WebViewClient
to you WebView
, just do this:
webView.setWebViewClient(new MyWebViewClient());
I used this to set a time out for my WebView:
public class MyWebViewClient extends WebViewClient {
boolean timeout = true;
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Runnable run = new Runnable() {
public void run() {
if(timeout) {
// do what you want
showAlert("Connection Timed out", "Whoops! Something went wrong. Please try again later.");
}
}
};
Handler myHandler = new Handler(Looper.myLooper());
myHandler.postDelayed(run, 5000);
}
@Override
public void onPageFinished(WebView view, String url) {
timeout = false;
}
}
The correct way to change the default timeout is using tag <preference />
in config.xml file, for example:
<preference name="loglevel" value="DEBUG" />
<preference name="loadUrlTimeoutValue" value="60000" />
<preference name="errorUrl" value="file:///android_asset/www/connection_error.html" />
For more preference options, refer to Android Configuration.
If you extend CordovaWebView, which you should in order to get the phonegap API, you can just use the following:
this.getIntent().putExtra("loadUrlTimeoutValue", 60000);
Internally, CordovaWebView implements a timeout mechanism similar to the ones proposed in the previous post (default timeout = 2000).
Mind that this is not a documented interface, so it might break in the future.
WebView mWebView = findViewById(R.id.web_view);
mWebView.setWebViewClient(new WebViewClient() {
private volatile boolean timeout;
private volatile String timeoutOnPageStartedURL;
private volatile String timeoutCurrentURL;
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
timeout = true;
timeoutOnPageStartedURL = url;
timeoutCurrentURL = view.getUrl();
new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
if (timeout) {
view.post(new Runnable() {
@Override
public void run() {
String currentURL = view.getUrl();
if ((timeoutOnPageStartedURL.hashCode() == currentURL.hashCode()) ||
(timeoutCurrentURL.hashCode() == currentURL.hashCode())) {
// do what you want with UI
}
}
});
}
}
}).start();
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
timeout = false;
}
});