how to download files in background for iOS ?? IOSBackgroundTask: true not work for me, any one please help me out ??

[cbpanchal]

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[cbpanchal]

@joltup

[cbpanchal]

I am done with this https://github.com/Jacse/rn-fetch-blob#ios-background-uploading but still not working, please check if anyone has an idea @joltup

Thanks

[TfADrama]

Someone knows a library that works on background for ios?

[venkataluri]

Hi, I am also looking for IOS background upload support, here is my code RNFetchBlob.config({ IOSBackgroundTask: true, }) .fetch('POST', videoPath, { 'ClientToken': access_token, 'Content-Type' : 'application/octet-stream', }, RNFetchBlob.wrap(fileUrl)) .then((res) => { console.log('res',res.text()) }) .catch((err) => { console.log('err',err) })

while uploading data to server, if application is moved to background and again brining back to foreground RNFetchBlob callbacks are not getting called and showing loading continuously.

can anyone help me to fix this issue

Thanks

[venkataluri]

Hi, after adding the following code in AppDelegate, i am able to upload file in background

//AppDelegate.h
@property (nonatomic, assign) UIBackgroundTaskIdentifier taskIdentifier;

// AppDelegate.m
- (void)applicationWillResignActive:(UIApplication *)application {
    if (self.taskIdentifier != UIBackgroundTaskInvalid) {
        [application endBackgroundTask:self.taskIdentifier];
        self.taskIdentifier = UIBackgroundTaskInvalid;
    }
    
    __weak typeof(self) weakSelf = self;
    self.taskIdentifier = [application beginBackgroundTaskWithName:nil expirationHandler:^{
        [application endBackgroundTask:weakSelf.taskIdentifier];
        weakSelf.taskIdentifier = UIBackgroundTaskInvalid;
    }];
}

here is my RNFetchBlob code RNFetchBlob.config({ IOSBackgroundTask: true, }) .fetch('POST', videoPath, { 'ClientToken': access_token, 'Content-Type' : 'application/octet-stream', }, RNFetchBlob.wrap(fileUrl)) .then((res) => { console.log('res',res.text()) }) .catch((err) => { console.log('err',err) })

[ramazanarslan]

@venkataluri thanks it worked really. @mustafakemalelma

[ankitpmi]

Hi, after adding the following code in AppDelegate, i am able to upload file in background

//AppDelegate.h
@property (nonatomic, assign) UIBackgroundTaskIdentifier taskIdentifier;

// AppDelegate.m
- (void)applicationWillResignActive:(UIApplication *)application {
    if (self.taskIdentifier != UIBackgroundTaskInvalid) {
        [application endBackgroundTask:self.taskIdentifier];
        self.taskIdentifier = UIBackgroundTaskInvalid;
    }
    
    __weak typeof(self) weakSelf = self;
    self.taskIdentifier = [application beginBackgroundTaskWithName:nil expirationHandler:^{
        [application endBackgroundTask:weakSelf.taskIdentifier];
        weakSelf.taskIdentifier = UIBackgroundTaskInvalid;
    }];
}

here is my RNFetchBlob code RNFetchBlob.config({ IOSBackgroundTask: true, }) .fetch('POST', videoPath, { 'ClientToken': access_token, 'Content-Type' : 'application/octet-stream', }, RNFetchBlob.wrap(fileUrl)) .then((res) => { console.log('res',res.text()) }) .catch((err) => { console.log('err',err) })

Thanks, It worked for me!!!

[DodlaRajasekharReddy1995]

Hi, after adding the following code in AppDelegate, i am able to upload file in background

//AppDelegate.h
@property (nonatomic, assign) UIBackgroundTaskIdentifier taskIdentifier;

// AppDelegate.m
- (void)applicationWillResignActive:(UIApplication *)application {
    if (self.taskIdentifier != UIBackgroundTaskInvalid) {
        [application endBackgroundTask:self.taskIdentifier];
        self.taskIdentifier = UIBackgroundTaskInvalid;
    }
    
    __weak typeof(self) weakSelf = self;
    self.taskIdentifier = [application beginBackgroundTaskWithName:nil expirationHandler:^{
        [application endBackgroundTask:weakSelf.taskIdentifier];
        weakSelf.taskIdentifier = UIBackgroundTaskInvalid;
    }];
}

here is my RNFetchBlob code RNFetchBlob.config({ IOSBackgroundTask: true, }) .fetch('POST', videoPath, { 'ClientToken': access_token, 'Content-Type' : 'application/octet-stream', }, RNFetchBlob.wrap(fileUrl)) .then((res) => { console.log('res',res.text()) }) .catch((err) => { console.log('err',err) })

We are trying to download a video file in ios and got this error when the app went to background,

we have used the above code provided by @venkataluri , the download is working fine till 30 sec after that we are getting same issue, can someone help out here... we are stuck with this issue.

[hamidpak013]

Someone knows a library that works on background for ios? npm i react-native-background-fetch try this one

[OrtizJorge97]

It worked for me, but with a little of modifications in my AppDelegate.mm (note that for me it is not AppDelegate.m)

//AppDelegate.mm
- (void)applicationWillResignActive:(UIApplication *)application {
   if (self.taskIdentifier != UIBackgroundTaskInvalid) {
      [application endBackgroundTask:self.taskIdentifier];
      self.taskIdentifier = UIBackgroundTaskInvalid;
   }
 
   __weak AppDelegate *weakSelf = self; //THIS LINE IS DIFFERENT
   self.taskIdentifier = [application beginBackgroundTaskWithName:nil expirationHandler:^{
      if (weakSelf) {
          [application endBackgroundTask:weakSelf.taskIdentifier];
          weakSelf.taskIdentifier = UIBackgroundTaskInvalid;
      }
   }];
}

When tried to build with npx react-native run-ios --simulator="iPhone 15 Pro" command, with the previous solution it was not able to compile, so had to modify it the above way to work!

[giapmn-1380]

Hi, after adding the following code in AppDelegate, i am able to upload file in background

//AppDelegate.h @property (nonatomic, assign) UIBackgroundTaskIdentifier taskIdentifier;

// AppDelegate.m

• (void)applicationWillResignActive:(UIApplication *)application { if (self.taskIdentifier != UIBackgroundTaskInvalid) { [application endBackgroundTask:self.taskIdentifier]; self.taskIdentifier = UIBackgroundTaskInvalid; }

  __weak typeof(self) weakSelf = self; self.taskIdentifier = [application beginBackgroundTaskWithName:nil expirationHandler:^{ [application endBackgroundTask:weakSelf.taskIdentifier]; weakSelf.taskIdentifier = UIBackgroundTaskInvalid; }]; } here is my RNFetchBlob code RNFetchBlob.config({ IOSBackgroundTask: true, }) .fetch('POST', videoPath, { 'ClientToken': access_token, 'Content-Type' : 'application/octet-stream', }, RNFetchBlob.wrap(fileUrl)) .then((res) => { console.log('res',res.text()) }) .catch((err) => { console.log('err',err) })

=> sometime, download file error still happend. Message error "The network connection was lost" when app running in background.

[maksymhcode-care]

Hi, after adding the following code in AppDelegate, i am able to upload file in background //AppDelegate.h @Property (nonatomic, assign) UIBackgroundTaskIdentifier taskIdentifier; // AppDelegate.m

• (void)applicationWillResignActive:(UIApplication *)application { if (self.taskIdentifier != UIBackgroundTaskInvalid) { [application endBackgroundTask:self.taskIdentifier]; self.taskIdentifier = UIBackgroundTaskInvalid; } __weak typeof(self) weakSelf = self; self.taskIdentifier = [application beginBackgroundTaskWithName:nil expirationHandler:^{ [application endBackgroundTask:weakSelf.taskIdentifier]; weakSelf.taskIdentifier = UIBackgroundTaskInvalid; }]; } here is my RNFetchBlob code RNFetchBlob.config({ IOSBackgroundTask: true, }) .fetch('POST', videoPath, { 'ClientToken': access_token, 'Content-Type' : 'application/octet-stream', }, RNFetchBlob.wrap(fileUrl)) .then((res) => { console.log('res',res.text()) }) .catch((err) => { console.log('err',err) })

=> sometime, download file error still happend. Message error "The network connection was lost" when app running in background.

Have you found a solution?