I'm looking for a way to open (or display a notification from) an iphone app when a low battery level notification occurs. Is it possible to perform it if my app is running in background ? I found that an app can't refresh after some minutes in background, but I wonder how many apps can display notifications by their own without being opened.
Thanks.
Related
I don't understand why when my app is killed. I received an incoming notification and selected that notification until when the app was opened I found the ui design was messed up, I couldn't even access the address I had previously set for the notification to go to the required screen. please help me
Here is the screen I'm getting the error on
https://i.stack.imgur.com/5jjzw.jpg
Is there any way to bring the app to foreground which is running in background without sending any local notification?
There is no way for you to programatically foreground the app. If you think about it, allowing developers to do that could have significant consequences to user experience.
There must be a way to simulate it.
Uber Driver's App launch when the user gets a new ride with app in background.
WhatsApp in background opens a phone view when somebody calls the user.
I'm working on app that will manage quite a lot of local notifications. So since I don't want to waste user's battery, I'm wondering - is there any possibility to don't turn on the screen? So the notification still will be fired and the banner will be on the screen but only if user will unlock the phone. It's kind of "minor notification" that are still should be displayed but they're not so important to wake up the phone.
And if there's such possibility - wouldn't it be what Apple calls "bad user experience". You know, kind of confusion that notification didn't wake up the phone's screen?
And yes, sound still should exist, because it should work as reminder.
Thanks in advance.
Currently i am working on app in which i want to play continues sound when app receives push notification. as i know apple allow to play custom sound of length of 30 sec here is link..
but in well known app it plays continues sound in driver side when app is in back ground and driver receives order.
and another issue is of when my app is in back ground and receives push notification Rather clicking on notification if i open app by pressing app icon it does not show me data of push. it is not possible to load data when press on app icon here is link
iOS Push notification issue
but same thing is done in well known app
With iOS 7+, use application:didReceiveRemoteNotification:fetchCompletionHandler:, which is called even if your app is in the background. iOS will even launch your app in the background if it's not already running, but if the user force quits the app, it will not be re-launched. If you enable the remote-notification background mode, you can run app code when the notification arrives. If you include the audio background mode, you could initiate a sound that continues to play while app is in background.
For second question, typically, your app should query a server for updates if it's launched directly. However, you could leverage a remote notification as above, which you'd get in most cases (except if the app were force quit).
I implemented Push notifications in iOS. I want my application to play a music (about 15sec) when I send a push message. I am currently getting the push message, and the music is being played only if the app is in the foreground.
If the app is in the background, it shows up a notification, and when i tap it, it then plays the music.
But how do I get the functionality of automatically playing the music? I think this can be done because, in iOS, Audio apps can run in the background. So I just want the music to be played when the app goes to background, and it receives a push.
Can anyone help me with this please?
Thanks,
Nithin
Yes, there are two ways to do this.
The traditional way before iOS 7 is to register for audio playing background mode and play a silent sound forever, this will keep your app running in the background for a long time until the user kills it, or it is killed due to low memory.
This way has many drawbacks, the user must launch your app once so that you can start playing the sound and every time the iPhone is shut off, the user need to relaunch your app when he turn on the iPhone.
Also this will consume a lot of battery. 20%-30% a day for an iPhone 5.
The new way after iOS 7.0 is to exploit background fetch and remote notification, you can play your sound while performing a background fetch, which has a 30 seconds running time. Also you can trigger a background fetch with a push notification.
This is an article about background fetch and push notification http://www.objc.io/issue-5/multitasking.html