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Disabling home button on iPhone/iPad
hi developers
i am trying to disable the home button. the reason being my app is designed to be like a convenience store register , the person using the app would be entering the opening and closing balance while loggin in and loggin out of his shift. so when the home button is pressed(accidentally) there is no way of entering the closing balance.i did try some stuff in applicationWillTerminate method in the app delegate , but it did not work. i have put a check mark against "application will not run in background" in the info.plist so that the user has to login again with the password(that takes care of security issue). now , what i was thinking was instead of trying to code in applicationWillTerminate is there anyway i can disable the home button so that the only option left out for the user to logout is the proper logout button.
and last of all , this app will not be in the Appstore , its for a client. i dont have to bother apple rejecting my App for sure.
The only way would be to get a case that covers the home button
IMPOSSIBLE!!! not even an API for a jailbroken phone will have this feature.
try some alternatives:
do allow the app to run in the background,
but log the user out after 2mins of backgrounding [takare of your security], by saving the current time in applicationWillResignActive and checking it against timeIntervalSinceDate in applicationDidBecomeActive
save the closing balance as a variable in NSUserdefaults against that user when logging out due to timeout/terminating and maybe ask him if he wants to enter it in if he logs in again.
Short answer: no. You can't do that.
I'd be very surprised if this was possible, even using private APIs.
In essence, the operation of the home button is controlled by the underlying OS (the "springboard" app launcher in this case), so it's unlikely to be possible for an application to override or somehow block the "button pressed" message.
That said, some alternatives have been discussed within the existing Disabling home button on iPhone/iPad question.
Related
I am currently making an app that recommends other apps to download on the apple app store. I assumed that the only way for users to download these linked apps was to call the iTunes URL of the particular app -> the apple app store would then open pushing the original calling app into the background -> then the user would press the download button here as per normal.
Then I was playing with the app "App Hero" and they do something I thought wasn't possible. You can actually download another app to your device without ever leaving the "App Hero" application. I thought this was impossible due to sandboxing. They have a modal segue to what appears to be an embedded app store where you can commence installation of another app. This "embedded" app store doesn't have the usual UITabBar running along the bottom but everything else is basically the same.
Does anyone have any idea how they would have achieved this? It doesn't appear to be a UIWebView, perhaps I am wrong. And is this against any of the apple regulations?
*This is no way an advertisement for "App Hero". I am genuinely impressed/confused how they are able to do this and would love this functionality in my own app if it is allowed.
The class you are looking for is called SKStoreProductViewController. Docs here.
When a user first opens my app, I need to download and install some content from a server before they can begin using the app. The problem is that this takes around 5 minutes on wifi, during which time the app goes into the background and the download is suspended.
Is there any way to either:
prevent an iOS app from entering the background whilst I perform my download
or continue peforming the task in the background (i.e. perform the task irrespective of whether the app is in the foreground or background)
Thanks
It really doesn't matter, if the user presses the home button it will go to background. Although you can do two things to mitigate the problem:
Use beginBackgroundTaskWithExpirationHandler, to give you a bit more time to download. Which you can read here.
Don't allow the device to become iddle, with [UIApplication sharedApplication].idleTimerDisabled = YES;. You can read more about that here.
Either way, the best thing you can do is to tell the user, that is an important download and he shouldn't quit the application.
Can't you include some or all of the content in your app bundle instead, and just download changes on first run?
I can't imagine this is a good first user experience, and it may not pass App Store review like this.
The only third party apps that are allowed to download in the background are newsstand apps loading issue content, and Apple are pretty strict about what they allow as newsstand apps.
You can't do what you want, in this situation. One way, and I think the best and only, is to resume your download when you app becomes active (returns to foreground state). Also, don't forget to register for connectivity notifications (Reachability class can be used for this purpose from this Apple sample app http://developer.apple.com/library/ios/#samplecode/Reachability/Introduction/Intro.html). Good Luck!
I would like to be able to turn VoiceOver on or off within my iOS app. The reason for this is I am trying to help a person with disabilities which render her unable to read messages (hence the need for VoiceOver), and who is also unable to triple click the home-button due to motor coordination problems. The way to the setting through Settings>General>Accessibility>VoiceOver>VoiceOver>Flipswitch is far too long and complicated.
Is it possible, without jailbreaking the device, to change this setting in an app? The app doesn't need to make it to the App Store, if that helps.
Alternatively, is it easy to do this with a jailbroken device?
Another approach may be to simulate the triple-click on the home-button that automatically turns on VoiceOver. Is there any way to do this?
Get the app aHomeIcon.
Open the app and tap URL.
Insert the url: prefs:root=General&path=ACCESSIBILITY
Tap 'Done'.
Insert a name to be shown below the icon.
Tap the export button at the bottom of the page. Safari opens.
Add a bookmark and select 'to home-screen'.
Now you can tap that icon and you are redirected to the accessibility part of the settings app.
See this link for reference.
I want to register my app for push notification when my application terminates so i think if i delay my app quitting time it could be possible.Does someone knows how to delay application quitting time? I think this method
[self performSelector:(SEL)aSelector onThread:(NSThread *)thr withObject:(id)arg waitUntilDone:(BOOL)wait];
will do my job but i don't know how to use this method if someone knows please tell.I need to send some data to a server along with registering for Push Notification when my app quits.
I can't imagine why you would want to do this. If it were even possible it would be extremely annoying for a user to tap the home button and the app to take x amount of time to shut down. This time 'x' being dependent on the server connection creates even more user headache.
Apple have the home button exit apps immediately for a reason.
If you want to register the Push Notifications like you suggest, do it while the app is running. If your worrying that they won't be properly set if the user exits prematurely... don't.
As users, we all know there are sometimes consequences of exiting a program without giving it time to save your settings.
For push notification it is better to register when the app first starts and then send the push token to your server in the background. However, if you have a good reason why you need to do the registration just as the app terminates, I believe you can do this if you are using iOS 4. iOS 4 has a new feature called "task finishing" that allows an app to stay running for a few minutes after the user closes it so that it may finish up any tasks it was in the middle of (such as saving data).
I want to develop a screensaver-like app where the only way of getting back to the springboard is entering a code. Therefore I would need the Home Button action to be ignored, that is that when the user presses the button nothing happens..or something custom...instead of going back to the springboard and terminating the app.
Is this possible? does anybody know if apple will approve/reject this kind of app?
The answer to your question is, yes.
The answer to the question you meant to ask--can I ship an app through the iPhone store that has the home button disabled--is no.
If you are only publishing your app to jailbroken phones you can do it, but it will piss everyone off.
Edit 7 years later:
This is actually extremely possible now--there is a standard feature in the iPhone called "Guided Access". It's hidden under that "Accessibility" Link (With some other fairly cool stuff like flashing the LED whenever you get a call and allowing a Bluetooth keyboard to tab between controls)
It's called "Guided Access". You set a passcode, launch the app then triple-click the home button to start guided access.
It disables exit and allows you to designate regions of the screen you can't touch. You can also set a time limit (For kids playing which seems to be the reason a lot of people look up this question).
Tempted to edit the "Accepted answer" and throw this info in there, but that seems rude so I'll just hope people find this answer.
Annoyingly you also seem to be unable to shut off the phone--I suppose this is perfect for people who want their kids to play a game, but might not hit the original asker's problem of restricting access to a single app (I mean it WILL do that but it'll also prevent it from doing ANYTHING else).
Not with public APIS (and hopefully, not with private ones). Even if you manage it somehow, Apple will reject it for breaking UI guidelines. Moreover, even if they didn't, people could always use the iPhone's "Force Quit" equivalent to hard terminate your app.
Apple is not going to approve this type of app, they state pretty explicitly that you're app needs to respond appropriately to springboard telling the app to terminate both when things like phone calls come in and when memory warnings come in.
This is not possible with the current SDK, nor do I suspect it will ever be.
You might be able to get this behaviour via jailbreaking, but you won't be able to sell your app through iTunes, nor will Apple ever approve such an application.
You can do it like this
Install the following mobileconfig file
This will disable the home button once you launch the app
Download
Found the link Here
Apple won't allow it.
What if something emergency happens and you wan to dial an emergency phone number. You are putting the user at risk. The trade-off isn't worth it.