CODEWITHSUNDEEP
androidandroid-webview
Jabeer
Jabeer

Reputation: 879

Back Button Issue in Android Webview

THe problem is little difficult to convey, The Actual scenario will be help you guys to understand the real problem.

In the Android Application.

I have a lot of the Jquery Mobile Page append to the android Webview.

When i select one Page (E.g) Profile , the page opens properly and if i press the back button, the application moves to the main page, if i again select profile and press back the application goes to the login page.

if i select some other page and select the profile this is not happening. this issue is not only with the single page. in all the page i have the same issue. Can some one guide me what should i have do?

The Source code of the Key Press event, enter code here

   @Override
        public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && webview.isEnabled()
            && !this.onLogin) {

        webview.loadUrl("javascript:handleDeviceBack()");
        return true;
    } else if (keyCode == KeyEvent.KEYCODE_BACK && this.onLogin) {
        moveTaskToBack(true);
    }
    if (keyCode == KeyEvent.KEYCODE_HOME) {
        webview.loadUrl("javascript:handleDeviceHome()");
        return true;
    }
    return false;
}

In my web view,

enter code here
 handleDeviceBack = function(status) {
mHealth.util.logMessage('On device Back');
var historyBack = {
    "home" : "page",
    "loginPage" : "page",
    "welcomeMsg" : "page"
};
var moduleIndex = {
    "assessNotFound" : "../../home/view/home.html",
    "showActivity" : "../../home/view/home.html",
    "showMessage" : "../../home/view/home.html",
    "show_tracker" : "../../home/view/home.html",
    "settingsPage" : "../../home/view/home.html"
};
var graphPages = {
    "singlehealthdatapage" : "page",
    "multiplehealthdatapage" : "page"
};
var otherShortcuts = {
    "show_tracker_view" : "../../trackers/view/showtracker.html",
    "detailMessage" : "../../messages/view/showmessage.html",
    "alfrescoDIV" : "../../messages/view/showmessage.html"
};
// var exitAppCriteria={ "home" : "page","loginPage" : "page","welcomeMsg" :
// "page"};

if($('.ui-page-active').attr('id')=="condition_index")
    {
        $.mobile.changePage("../../home/view/history.html");
    }
else if (historyBack[$('.ui-page-active').attr('id')]
        || $('body').children().is('#tandcPage')) {
    Android.finishActivity();
} else if (moduleIndex[$('.ui-page-active').attr('id')]) {
    Android.highlightHome();
    $('.ui-alert-wallpaper').detach();
    $.mobile.changePage(moduleIndex[$('.ui-page-active').attr('id')]);

} else if (graphPages[$('.ui-page-active').attr('id')]) {
    Android.showTab();
    Android.pageHistory();
} else if (otherShortcuts[$('.ui-page-active').attr('id')]) {
    $.mobile.changePage(otherShortcuts[$('.ui-page-active').attr('id')]);
} else {

    $('.dw').detach();
    $('.dwo').detach();
    $('.dw').detach();
    $('.ui-alert-wallpaper').detach();
    Android.showTab();
    Android.pageHistory();
}

};

I found the problem is with the Android.pageHistory();

enter code here
    public void pageHistory() {
    this.activity.runOnUiThread(new Runnable() {

        @Override
        public void run() {
            // TODO Auto-generated method stub
            WebContainerActivity.webview.goBack();

        }
    });

}

Where First time its running properly but if the function called repeatly the web view.go back to the first page.

Upvotes: 0

Views: 1164

Answers (2)

Jabeer
Jabeer

Reputation: 879

Hard coded the URL by their ID and solved the issue temporarily.

Upvotes: 0

magirtopcu
magirtopcu

Reputation: 1194

In your activity override backpressed method like this 

  @Override
    public void onBackPressed() {
      webview.loadUrl(sameurl);
        }

Upvotes: 1

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