In my application I want that my application being active even after termination of application. I want that when "slide to unlock" my appliaction is launched.
It is possible? How can I do it without jailbreaking & all...
It is a convenience feature for the user. The application is an audio player and should start playing music immediately when the user unlocks his iPhone or speaking a text "Welcome to iPhone" or something like that.
Please clarify more about it that what you want to do. For this you might be use jail broken tools.
Use this link
http://www.redmondpie.com/how-to-unlock-any-jailbroken-iphone-on-any-baseband-and-firmware/
http://www.redmondpie.com/how-to-unlock-any-jailbroken-iphone-on-any-baseband-and-firmware/
Related
Is it possible to flash a flashlight in iPhone when application is background mode?
Please give some suitable suggestion.
Already given the answer similar of your this question, pls see this link at once
Iphone flashlight not working while app is in background
This is a normal behavior.
Apple's sandboxing will not allow you to keep the flash on while your app is in the background.
There is no workaround unless we are talking about a jailbroken app.
Edit:
Apple is very strict on it's system's APIs usage. Especially when it comes to:
- User privacy
- Battery life
- User experience
In the case of the flashlight, the last two items are relevant. Apple will not let an app drain the battery when not in the foreground and iOS users are used to the fact that flashlight, camera, microphone... are immediately disabled when going to the background (with an exception for the microphone in some background modes cases).
To answer the comment on your initial post, iOS controls your hardware. So since Apple decided they don't want the light to stay on when the user closes the app, iOS will just power off the flash when your app goes in the background. Your app has no authority to prevent it.
When in background your application doesn't work or get any messages from the system.
The only cases when this is allowed are:
navigation application
audio player
Internet telephony
Unless you are designing any of the above you can not flash the user with anything.
If you only want to notify the user about something, you can create a notifier that will pop a message in the users window even if your application is in the background or entirely off. the user can click the message and then he will be back to your application
My app is an audio player, so it keeps running in the background. But flashlight works only when it's in the Foreground. No flashlight from the background.
try AVCaptureDevice
AVCaptureDevice
I am working on app in which audio file playing very vital role.
for playing audio file I am using AVaudioPlayer in my app.
but one problem is suppose device is in silent mode and user starts running the app
and suppose he/she turns on silent/ring switch in the middle of the app.
right now he/she must exit the game but I want such kind of functionality in
which He/she should not exit the app and in the middle of the app user should be
able to hear the sound when he turns on the ring/silent switch from the device.
iOS apps have the ability to play music in the background whether they be games or not, since multitasking was introduced in iOS.
See the following tutorial.
http://mobile.tutsplus.com/tutorials/iphone/ios-sdk_background-audio/
Whether its legit for a game to do this I seriously question. But thats your call.
I wrote my first iPhone App, and managed to get it into the App store. I later discovered a bug that happens on a real device but not on my emulator. I have committed a fix (changed plist to prevent app running in background), but I don't really understand why it happened.
My App allows users to record a sound-byte, however while they are recording they can use the iPhone home button to move the app to the background, and then it can keep recording forever if they don't restart the phone or the app does not crash.
My impression from everything I have read, is that this should not happen as you have to ask for background audio specifically if you want to do this, but now it appears to me that you have to ask specifically to disable it.
Could anyone explain this to me?
The iOS App lifecycle is described in Apple's iOS App Programming Guide.
The App is given the opportunity to save data and otherwise stop things that don't need to be running, before being suspended. You can request extra time doing this by using beginBackgroundTaskWithExpirationHandler:.
If you want your app to stop doing its "normal thing" when it is put into the background then you need to detect the App state transition and stop it yourself.
I have an application in which I want to lock the iPhone programmatically so that the user can't perform any action.
How can I determine the user is not working with the iPhone for some period, and after that period automatically lock the phone?
Such applications are used in all phone devices, where the user can set an auto-lock time and then the device will automatically lock if the user does not handle the device.
How is it done programmatically? Please give me one example of the code so I can perform this easily.
I am new to iPhone programming, and I am struggling in my application. Help me. Thanks in advance.
(For your lock the iphone device through programatic only )
Impossible.
But , you could prevent your phone from locking when your app is running.
[UIApplication sharedApplication].idleTimerDisabled = YES
There is no way to disable the Home Button in iOS using the documented API. The user will always be able to get back to the home screen or close your application using the Home Button.
Even if you find a way do it (which is very unlikely) your app will be definitely rejected from the App Store for a blatant violation of the iOS Human Interface Guidelines. If I were you I would reconsider implementing this behaviour, frankly, it's just not a good idea.
If you're only looking for blocking the the UI of your app, check out the answers to this question, more specifically, check out the incredibly useful MBProgressHUD library:
How can I quit iPhone4 app? When I use exit(0) the app goes in the background. I want to quit the app instead of sending it to the background.
iPhone apps shouldn't have a quit button. The user quits by pressing the main button.
From Apple's docs: (http://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/MobileHIG.pdf)
People quit an iPhone application by opening a different application. In particular, note that people don’t tap an application close button or choose Quit from a menu. In iOS 4.0 and later, and on certain devices, the quitting application moves to a suspended state in the background. All iPhone applications should:
Be prepared to quit at any time. Therefore, save user data as soon as possible and as often as reasonable.
Save the current state when stopping, at the finest level of detail possible. For example, if your application
displays scrolling data, save the current scroll position.
iPhone applications should never quit programmatically because doing so looks like a crash to the user. There may be times, however, when external circumstances prevent your application from functioning as intended. The best way to handle this is to display an attractive screen that describes the problem and suggests how users can correct it. This helps users in two ways:
It provides feedback that reassures users that there’s nothing wrong with your application
It puts users in control, letting them decide whether they want to take corrective action and continue
using your application or press the Home button and open a different application
Set UIApplicationExitsOnSuspend in your application's plist. This will cause the app not to go into the background under iOS4 when the user switches to another app.
Then have your app send an openURL: message to Safari when your app wants to exit. When Safari launches, your app will be terminated (by honoring the UIApplicationExitsOnSuspend plist key).
If you point the Safari URL at a web page explaining why your app just stopped running, the user might be less likely to give it a 1-star rating.
Note that this procedure may or may not follow Apple's recommendations, but it does stay within legal public API use (e.g. even some of Apple's example apps launch Safari).
after that I put everything I had said I put this and it worked
- (Void) applicationDidEnterBackground: (UIApplication *) application
{
exit (0);
}
comes completely out of the application
in app delegate there is method call applicationDidEnterBackground
call the exit(0)