Example usage for android.webkit WebView isShown

Introduction

In this page you can find the example usage for android.webkit WebView isShown.

Prototype

public boolean isShown() 

Source Link

Document

Returns the visibility of this view and all of its ancestors

Usage

From source file:com.facebook.internal.FacebookWebFallbackDialog.java

@Override
public void dismiss() {
    WebView webView = getWebView();

    if (isListenerCalled() || webView == null || !webView.isShown()) {
        // If the listener has been called, or if the WebView isn't visible, we cannot give the dialog a chance
        // to respond. So defer to the parent implementation.
        super.dismiss();
        return;/*from ww  w.jav a 2s  .  com*/
    }

    // If we have already notified the dialog to close, then ignore this request to dismiss. The timer will
    // honor the request.
    if (waitingForDialogToClose) {
        return;
    }
    waitingForDialogToClose = true;

    // Now fire off the event that will tell the dialog to wind down.
    String eventJS = "(function() {" + "  var event = document.createEvent('Event');"
            + "  event.initEvent('fbPlatformDialogMustClose',true,true);" + "  document.dispatchEvent(event);"
            + "})();";
    webView.loadUrl("javascript:" + eventJS);

    // Set up a timeout for the dialog to respond. If the timer expires, we need to honor the user's desire to
    // dismiss the dialog.
    Handler handler = new Handler(Looper.getMainLooper());
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            if (!isListenerCalled()) {
                // If we get here, then the dialog did not close quickly enough. So we need to honor the user's
                // wish to cancel.
                sendCancelToListener();
            }
        }
    }, OS_BACK_BUTTON_RESPONSE_TIMEOUT_MILLISECONDS);
}

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