CODEWITHSUNDEEP
javaandroid
Darm0ka
Darm0ka

Reputation: 312

Prevent refresh webview in Android

I'm creating an app that loads my website to a webview. I want to prevent that page reloads when I came back to app. If I change to other app or power off and came back the page shows without refresh, the problem occurs only it stays off for a few minutes. I think that the application change the state to stop or is destroyed and when I enter again is called the method oncreate.

I've tried to change android:launchMode to singleTop an singleTask without success, is the creation of a service the solution? Thanks in advance.

Upvotes: 1

Views: 841

Answers (1)

CROSP
CROSP

Reputation: 4617

In order to prevent refreshing of WebView, you need to save and restore state.

This is done by overriding lifecycle methods onSaveInstanceState and onRestoreInstanceState

@Override
protected void onSaveInstanceState(Bundle outBundle)
{
    super.onSaveInstanceState(outBundle);
    webView.saveState(outBundle);
}

@Override
protected void onRestoreInstanceState(Bundle savedBundle)
{
    super.onRestoreInstanceState(savedBundle);
    webView.restoreState(savedBundle);
}

Furthermore, you can try to set cache on the WebView instance.

webView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
webView.loadUrl(url);

Upvotes: 1

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