back-button

问题 I have an application that uses a combination of the onhashchange event (for new browsers) and the hashchange plugin by Ben Alman (for old browsers) to track the history while making ajax calls or actions. Works like a charm in all browsers, back and forward buttons let the user navigate the actions that get recorded by changing the hash. So far so good. Now our page will be hosted in an iframe on a clients page in a diff domain(cross domain). Chrome kind of works but if you put to many

问题 My Android Application has only one activity called MainActivity . When I press the back-button and run my application again, the previous activity will be destroyed. Now I want to know that is it possible to save the exact previous activity? Thank you 回答1: Pressing the back key kills your current activity. A user would not expect it to be saved as there is no way to go "Forward" . You can save the important parts of your activity in SharedPreferences or a database when you press back and

问题 I have disabled backbutton for some condition by backbutton register action event like this: $ionicPlatform.registerBackButtonAction(function (event) { if (condition) { event.preventDefault(); $ionicHistory.nextViewOptions({ disableBack: true }); } else { $ionicHistory.goBack(); } }, 800); So now how can i enable that device backbutton again ? Because its still disabled and not going in previous view too. 回答1: you need to try this var lastTimeBackPress = 0; var timePeriodToExit = 2000;

问题 I almost sure I saw someday that there is some property to set a shorter name of viewController to be display in the back button when it push another viewController and become the back viewController. Can some one remind me what is this property? 回答1: - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { // Custom initialization self.title = @"First View Controller"; // this defines the back

问题 I have build a quite complex widget which contains "some kind of form". It has a form tag, but I'm loading a lot of stuff in there via Ajax etc. Cannot explain it in detail, and the code is too long to paste in here. Now, in a "live('click', function()" I use for one of the form fields, I'm writing a couple of values into hidden fields of another form. That works fine, as I can see them in the generated code. But if I leave the page and then hit the back button, the values are gone. If I

问题 I'm trying to catch the Back button while the TextField is focused (keyboard is visible). I have already tried with Multiplexer - setting the ' BackProcessor ' on the top of the stages - it doesn't work: InputProcessor backProcessor = new InputAdapter() { @Override public boolean keyDown(int keycode) { if ((keycode == Input.Keys.BACK) ) { Gdx.app.log("INPUT", "BACK"); } return false; } }; InputMultiplexer multiplexer = new InputMultiplexer(backProcessor, loginStage,registerStage); Gdx.input

问题 PHP Post/Redirect/Get solution is good just for refreshing the page? What about if the user clicks on the back button twice and resend the form? The only solution I have found is to check in my database if same data is already posted. Is there any other solution without querying the database? Thank you in advance!!! 回答1: PRG is perfect for browser Back button support too. An HTTP redirect replaces the URL in browser history instead of adding a new entry. If you apply PRG consistently, i.e.

问题 I have 2 view controllers. 1: Login page(Main View Controller) 2: Sign Up page .Lets assume that I want to go back from Sign Up page to Login page . How to solve this problem(with Navigation Controller), I am new in swift and iOS . Here is my code in AppDelegate.swift. func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { self.window = UIWindow(frame: UIScreen.mainScreen().bounds) self.window?.backgroundColor = UIColor

问题 I want to know how to detect hard or soft "BACK Button" on device? I searched but mostly I found this code @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) { // do something on back. return true; } return super.onKeyDown(keyCode, event); } But I just need to detect if there is BACK button exist on device or not in form of hard or soft. 回答1: I think this should work Queries the framework about whether any

问题 I Googled and searched SO for my problem thinking it should be a common problem but didn't find any solution yet. The problem - I am having an ASP.NET MVC3 application. After login the user is redirected to the dashboard. The dashboard contains several links. When you click on a link the partial view is loaded through AJAX call. Everything works perfectly. Please check attached images for more clarification. Lets say i have navigated the pages in the same sequence as given in images. So the