$ yarn add react-native-background-fetch
$ npm install --save react-native-background-fetch
>= 1.10+
:
$ pod --version
// if < 1.10.0
$ sudo gem install cocoapods
$ cd ios
$ pod install
-
Select the root of your project. Select Capabilities tab. Enable Background Modes and enable the following mode:
-
Background fetch
-
Background processing (:new: iOS 13+; Only if you intend to use
BackgroundFetch.scheduleTask
)
- Open your
Info.plist
and add the key "Permitted background task scheduler identifiers"
- Add the required identifier
com.transistorsoft.fetch
.
- If you intend to execute your own custom tasks via
BackgroundFetch.scheduleTask
, you must add those custom identifiers as well. For example, if you intend to execute a customtaskId: 'com.transistorsoft.customtask'
, you must add the identifiercom.transistorsoft.customtask
to your "Permitted background task scheduler identifiers", as well.
com.transistorsoft.
— In the future, the com.transistorsoft
prefix may become required.
BackgroundFetch.scheduleTask({
taskId: 'com.transistorsoft.customtask',
delay: 60 * 60 * 1000 // In one hour (milliseconds)
});
Apple now requires apps provide a Privacy Manifest for "sensitive" APIs which could be abused for "fingerprinting" a user for malicious marketing activity.
If your app does not yet have a Privacy Manifest (PrivacyInfo.xcprivacy
), create one now:
ℹ️ Click here for detailed instructions...
- In XCode,
File -> New -> File...
:
- Be sure to enable your
Targets: [x] YourApp
:
It's best to edit this file's XML manually.
- 📂
ios/PrivacyInfo.xcprivacy
- Add the following block within the
NSPrivacyAccessedAPITypes
<array>
container:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>NSPrivacyAccessedAPITypes</key>
<array>
<!-- [1] background_fetch: UserDefaults -->
<dict>
<key>NSPrivacyAccessedAPIType</key>
<string>NSPrivacyAccessedAPICategoryUserDefaults</string>
<key>NSPrivacyAccessedAPITypeReasons</key>
<array>
<string>CA92.1</string>
</array>
</dict>
</array>
</dict>
</plist>
📂 AppDelegate.m
#import "AppDelegate.h"
#import <React/RCTBridge.h>
#import <React/RCTBundleURLProvider.h>
#import <React/RCTRootView.h>
// IMPORTANT: Paste import ABOVE the DEBUG macro
+#import <TSBackgroundFetch/TSBackgroundFetch.h>
#if DEBUG
.
. ///////////////////////////////////////////////////////////////////////////////////
. // IMPORTANT: DO NOT paste import within DEBUG macro or archiving will fail!!!
. ///////////////////////////////////////////////////////////////////////////////////
.
#endif
@implementation AppDelegate
(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
.
.
.
+ // [REQUIRED] Register BackgroundFetch
+ [[TSBackgroundFetch sharedInstance] didFinishLaunching];
return YES;
}
📂 AppDelegate.swift
:
import Foundation
import UIKit
+import TSBackgroundFetch
@UIApplicationMain
class AppDelegate: RCTAppDelegate {
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
.
.
.
+ // [REQUIRED] Register BackgroundFetch
+ TSBackgroundFetch.sharedInstance().didFinishLaunching();
return self.application(application, didFinishLaunchingWithOptions: launchOptions);
}
}
< iOS 13
.
BackgroundFetch implements an AppDelegate
method didPerformFetchWithCompletionHandler
. You must manually add this file to the same folder where your AppDelegate.m
lives:
- In the XCode's
Project navigator
, right click on project's name ➜Add Files to <...>
. node_modules/react-native-background-fetch/ios/RNBackgroundFetch/RNBackgroundFetch+AppDelegate.m
.
node_modules/react-native-background-fetch/ios/RNBackgroundFetch/RNBackgroundFetch+AppDelegate.m