iOS Battery Optimization Best Practice
Title: iOS Battery Optimization Best Practice
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Minimise the Burden on Battery
- iOS Application Battery Optimization Techniques
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How to Increase an iPhone Battery Usage
- People find battery a serious concern but few iOS
app designing tips - and can easily extend the battery usage of an
iPhone without - compromising the . Perhaps the most ignored tip
is keeping your - iPhone beyond the reach of hot sun or avoid
leaving it in a hot car. - Heat shortens the batterys performance
significantly
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Turn Down the Volume
- In order to minimize the impact of audio on your
iphone it is recommended to turn down your volume
as well as prefer headphones when - Possible. Go to SettinggtMusic to set a volume
limit as well as to turn off the EQ in order to
save even more battery
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Stop the Location Services
- It is evident that when your iphone is used to
track location then it drains huge amount of
battery. You can stop this by going into
SettinggtPrivacygtLocation Services and turn off
any app that you dont want should track you.
Going a step further you can also turn off the
Frequent Location, Diagnostic and Usage and
Location-Based iAds by going into
SettinggtPrivacygtLocation ServicesgtSystemServices
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Turn Off Unnecessary Animations
- Parallax effect and Dynamic Wallpapers are for
sure two very attractive thing on your iPhone but
impact your iPhone Battery very negatively. - Once you put a pause on these it will surely
save you substantial amount of battery. To do
this go to SettingsgtGeneralgtAccessibility and
turn on the Reduce motion. Now go to
SettingsgtWallpapers Brightnessgt Choose
Wallpaper and select some static wallpaper
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Turn Off Unnecessary Animations
- Parallax effect and Dynamic Wallpapers are
animated using information via iPhones sensors
about the way in which you are holding and moving
the phone hence these effect drain a substantial
amount of battery
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Do the Download Beforehand
- There are multiple movie and music streaming
services where option to download the data for
offline listening and viewing is available.
Streaming data using the iPhone data pack will
put extra burden on the device battery. Now
downloading ahead of time you want it will enable
your battery to go further.
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Smart Prioritization for Remote Notification
Delivery
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Smart Prioritization for Remote Notification
Delivery
- There are multiple elements contained within the
remote notifications delivered by the server to
Apple Notification Service like payload data, an
expiration date and a priority. Notifications can
be delivered immediately or can be scheduled for
an energy-efficient time. Here using two levels
of push priority you can you can decide which
notification to be delivered instantaneously or
need to be sent later.
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Discover those Services and Characteristics that
You Actually Need
- A peripheral usually has more than enough
services to perform specific use case in an app.
It is therefore, recommended to figure out the
particular services and characteristics required
by your app. This can be done using particular
UUIDs to discover services and
discoverCharacteristicsforService methods of
the CBPeripheral class
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Discover those Services and Characteristics that
You Actually Need
- Discovering particular services
- OBJECTIVE-C
- // Look for services matching a specific set of
UUIDs - peripheral discoverServices_at_firstServiceUUID,
secondServiceUUID - SWIFT
- // Look for services matching a specific set of
UUIDs - peripheral.discoverServices(firstServiceUUID,
secondServiceUUID)
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Discover those Services and Characteristics that
You Actually Need
- Discovering particular service characteristics
- OBJECTIVE-C
- // Look for characterstics matching a specific
set of UUIDs for a given service - peripheral discoverCharacteristics_at_firstCharac
teristicUUID, secondCharacteristicUUID - forServiceinterestingService
- SWIFT
- // Look for characterstics matching a specific
set of UUIDs for a given service - peripheral.discoverCharacteristics(firstCharacter
isticUUID, secondCharacteristicUUID, forService
interestingService)
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Disconnect from the Device When You Don't Need It
- To avoid your app from meaninglessly using the
devices radio simply disconnect it from a
peripheral device if some characteristic is no
longer providing notifications or even if the
extra data is not required anymore. Cancel every
notification subscriptions by passing a value of
NO to the setNotifyValueforCharacteristic
method of the CBPeripheral class. Now disconnect
from the device by calling the cancelPeripheralCon
nection method of the CBCentralManager class
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Disconnect from the Device When You Don't Need
- OBJECTIVE - C
- // Unsubscribe from a characteristic value
- self.peripheral setNotifyValueNO
forCharacteristicinterestingCharacteristic - // Disconnect from the device
- self.myCentralManager cancelPeripheralConnection
peripheral - SWIFT
- // Unsubscribe from a characteristic value
- self.peripheral.notifyValue(false,
forCharacteristic interestingCharacteristic) - // Disconnect from the device
- self.myCentralManager.cancelPeripheralConnection(p
eripheral)
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Multiple factors affect the amount of energy
required to do the network operations on a device.
- Cellular network activity requires much more
energy than performing an activity over Wi-Fi. - Poor or fluctuation in signal conditions may
result in slow or problematic transactions, which
must be avoided. - Low network throughput (bandwidth) means radios
need to stay more than usual for performing the
transactions. - The geographic location and preferred cellular
provider can affect the amount of energy
consumption because signal conditions and
throughput vary very often.
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Networking Variable Effect on the Energy
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Guideline for content refresh optimization
- Try to limit the number of views your app uses.
- Avoid using opacity especially for the content
that changes frequently. - Prefer only recommended frameworks while
developing games. These frameworks are optimized
to provide good performance.
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