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Ios error: Thread 1 under @auto release pool "EXC_BAD_ACCESS

由 我怕爱的太早我们不能终老 提交于 2019-12-11 19:22:16
问题 The app crashes and shows this error when I hit the Back button. I have 2 view controllers. On the first vc the Start button works fine to switch to second view, but when I hit the Back button the app crashes and I get the error above on the line below @autorelease pool. I will also post the code for my start & back buttons. thx :) #import #import "AppDelegate.h" int main(int argc, char *argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate

Back button is not visible in Navigation Bar in iPhone OS 4.0 in iPhone

由 点点圈 提交于 2019-12-11 13:06:38
问题 In my application (View based), the back buttons are not visible in the navigation bar. If I click that button, the actions works properly. It's very weird to me. The back button is visible and properly working in iPhone OS 3.0 and others.(Except OS 4.0). I am currently working in iPhone OS 4.0. Here is my code: UIButton *btn=[[UIButton alloc] init]; [btn setImage:[UIImage imageNamed:@"Back.png"] forState:UIControlStateNormal]; [btn addTarget:self action:@selector(backAction) forControlEvents

Contextual ActionBar hides when I click on hardware backbutton and the keyboard is out

由 久未见 提交于 2019-12-11 11:16:48
问题 I am using the Contextual ActionBar for editing and when I have the keyboard shown and I want to hide it by pressing the hardware back button, it hides the keyboard but it also cancels the contextual actionbar and I really can´t find a way how to keep it on. Anyone? 回答1: You should try to override the Back Key hardware, and handle the expected behaviour with a boolean as follows: // boolean isVisible to retrieve the state of the SoftKeyboard private boolean isVisible = false; // isVisible

Android - how to exit activity when back button is pressed? [duplicate]

由 前提是你 提交于 2019-12-11 09:36:38
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: android pressing back button should exit the app I'm building a register and login screen just for an exercise. So I put SharedPreferences so that when user open the app again, it will direct them to login activity and not start again from register. However, when I press back button from login activity it still take me back to register activity which could change the already saved SharedPreferences. I wanna

Back button that will open main Stage in Javafx 2

由 会有一股神秘感。 提交于 2019-12-11 09:28:57
问题 I have 2 screens in application. First screen(MainController class) which opens with running application from Eclipse. And second screen(SecondController class) which opens on button located in first screen. How can I make some kind of 'Back' button in second screen which will show back first screen? I'm creating the visual part of the application in JavaFX Scene Builder if it matters. 回答1: Here is a small example, containing to screens, to show how you can achieve what you are looking for

How to clear text field value on history.back()

由 瘦欲@ 提交于 2019-12-11 07:56:00
问题 I have a ColdFusion condition like this: <cfif txtTaxFileNo neq ""> <script> alert("NPWP Already Exist"); history.back(); </script> <cfabort> </cfif> Assume txtTaxFileNo has a value of "123" in the previous page. How can I empty the txtTaxFileNo field? I already tried this: <cfif txtTaxFileNo neq ""> <script> alert("#JSStringFormat('NPWP Already Exist')#"); history.back(); txtTaxFileNo.value = ""; </script> <cfabort> </cfif> However, the textfield on the previous page is not empty. It still

How to hide the bar button item on click of a button?

由 廉价感情. 提交于 2019-12-11 05:57:09
问题 in my app say i have 2 pages on click on next button(using push view controller) in page 1 it ill navigate to 2nd page , in the 2nd page i have a download(UIButton , not in the navigation bar) button , on click of that i need to hide the back button if back button is created by us we can hide it by using the following code self.navigationItem.leftBarButtonItem = nil; but i am not getting how to hide that back button,,can any one help me, thanx in advance 回答1: You can hide the back button

Show form after click back button

由 三世轮回 提交于 2019-12-11 04:36:14
问题 I use jquery to show hidden form. I want to know how I can automatically show form when user click Submit and then press back button . I don't want user to click New Account again to show form after they click back button. I have these working code currently: <head> <script src="https://code.jquery.com/jquery-latest.js"> </script> <script type="text/javascript"> $(function() { $('#register_link').click(function() { $('#show_form').toggle(); return false; }); }); </script> </head> <a href=

Reload recaptcha on browser back button

由 ≯℡__Kan透↙ 提交于 2019-12-11 04:23:09
问题 I have tried numerous methods to reload the image when paging back but no matter what i try i get the same image. Some methods were close ( i can see the image refresh, but the recaptcha server responds back and the previous image reappears). Is there some trick to getting the image to reload when clicking the back button? I dont want my users to have to re-enter all the form information if they type the security words incorrectly. I also want to avoid storing all the information. The page is

Chrome Vs Firefox Back Caching

由 非 Y 不嫁゛ 提交于 2019-12-11 03:34:44
问题 I have a drupal site with a view that links to detail pages. The view has paging. Here is the issue: In FireFox, when you go from page 8 of the view to a detail page, then click the back button, you end up at page 8 of the view. (good) In Chrome, when you go from page 8 of the view to a detail page, then click the back button, you end up at page 1 of the view. (bad) I was under the impression that chrome and firefox handled back caching in the same way. Is this not true? Is there anything I
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