After a while of usage, my App freezes during scrolling a WebView, saying “could not lock surface”

Question

My Android app consists of several activities, each responsible for a single fragment (for now). My fragments are usually displayed/attached somewhat like this:

Answer 1

I finally found the issue. Switching off hardware acceleration for the WebView solves it.

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle saved) {
    //...
    if (Utils.isKitkat()) {
        disableHardwareAcc();
    }
    //...
}

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
protected void disableHardwareAcc() {
    mWebView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}