Handle Android Back Button on Phonegap InAppBrowser

Question

I would like to disable or override the Android Back button while I am navigating pages on the InAppBrowser. Can I add an event listener that can handle that?

Answer 1

You can do it quite easily now (as of InAppBrowser version 0.3.3), but you will have to edit the Java files. Go to src/com/org/apache/corodova/inappbrowser directory and edit the InAppBrowserDialog.java:

Change

 public void onBackPressed () {
    if (this.inAppBrowser == null) {
        this.dismiss();
    } else {
        // better to go through the in inAppBrowser
        // because it does a clean up            
        this.inAppBrowser.closeDialog();           
    }
}

to

public void onBackPressed () {
    if (this.inAppBrowser == null) {
        this.dismiss();
    } else {
        if (this.inAppBrowser.canGoBack()) {
            this.inAppBrowser.goBack();
        }  else {
            this.inAppBrowser.closeDialog();
        }
    }
}

Then go to InAppBrowser and find the goBack function, change:

/**
 * Checks to see if it is possible to go back one page in history, then does so.
 */
private void goBack() {
    if (this.inAppWebView.canGoBack()) {
        this.inAppWebView.goBack();
    }
}

to

/**
 * Checks to see if it is possible to go back one page in history, then does so.
 */
public void goBack() {
    if (this.inAppWebView.canGoBack()) {
        this.inAppWebView.goBack();
    }
}

public boolean canGoBack() {
    return this.inAppWebView.canGoBack();
}

And now the hardware back button will go back until there are no more backs to do. I really think this should be the default behavior in android since the Done button already closes the InAppBrowser window.