AWSStaticCredentialsProvider *credentialsProvider = [[AWSStaticCredentialsProvider alloc] initWithAccessKey:#"AKIA..........." secretKey:#"6FuqRt................."];
AWSServiceConfiguration *configuration = [[AWSServiceConfiguration alloc] initWithRegion:AWSRegionEUWest2 credentialsProvider:credentialsProvider];
[AWSServiceManager defaultServiceManager].defaultServiceConfiguration = configuration;
self.transferManager = [AWSS3TransferManager defaultS3TransferManager];
NSString *filePath = [[NSBundle mainBundle] pathForResource:#"qr" ofType:#"jpeg"];
AWSS3TransferManagerUploadRequest *uploadRequest = [AWSS3TransferManagerUploadRequest new];
uploadRequest.bucket = #"my-flologic-bucket";
uploadRequest.key = #"monday.jpeg";
uploadRequest.body = [NSURL fileURLWithPath:filePath];
[[self.transferManager upload:uploadRequest] continueWithExecutor:[AWSExecutor mainThreadExecutor] withBlock:^id(AWSTask *task)
{
if (task.error)
{
NSLog(#"Error: %#", task.error);
}
else {
NSLog(#"The file uploaded successfully.");
}
return nil;
}];
ERROR:
Bucket=my-flologic-bucket,
Endpoint=my-flologic-bucket.s3-us-west-2.amazonaws.com, Message=The
bucket you are attempting to access must be addressed using the
specified endpoint. Please send all future requests to this endpoint.,
Code=PermanentRedirect, RequestId=E7471ACE4D6049F8}
As per the regions and endpoints document from AWS Regions and Endpoints, below region endpoints are valid for S3 us-west-2:
s3.us-west-2.amazonaws.com
s3-us-west-2.amazonaws.com
s3.dualstack.us-west-2.amazonaws.com
Can you try using https://<bucket-name>.s3.us-west-2.amazonaws.com instead of s3-us-west-2.amazonaws.com. I understand s3-us-west-2.amazonaws.com is also valid, but I've always used the previous one without any issues.
Related
-- a question about how to make an object that is saved to the documents directory persist on the drive and be recoverable after the iDevice is rebooted.
Here's my problem. I make a data object with NSCoding and fill it with data. I write it to the documentsDirectory each time the data in the object are updated. I stop the app and start the app again, and my data object persists, with all of its data. But if I reboot the iPhone the code I wrote to recover and read the data object fails.
The code I wrote originally used only a NSString for the file path. It worked well under ios7 but it fails under ios8.
Reading up on things, I found this clue from the Apple documentation:
"Important: Although they are safe to use while your app is running, file reference URLs are not safe to store and reuse between launches of your app because a file’s ID may change if the system is rebooted. If you want to store the location of a file persistently between launches of your app, create a bookmark as described in Locating Files Using Bookmarks."
So I rewrote my ios7 file open and file close methods so they no longer use strings or urls but get their strings and urls from a bookmark that is saved using NSUserDefaults. Same problem: everything works fine so long as I do not power off the phone, but all is lost once I do. I am not able to solve this.
Here is my current series of steps. First I either determine (or if it already exists in NSUsrDefaults, I recover) the absolute path to the documentsDirectory, using a bookmark:
+ (NSString*) getGeoModelAbsolutePath
{
NSString *path;
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
NSURL *documentsDirectoryBookmarkURL;
NSData* documentsDirectoryBookmark = [userDefaults objectForKey:#"documentDirectoryBookmark"];
if(documentsDirectoryBookmark == nil)
{
documentsDirectoryBookmarkURL = [self getDocumentsDirectoryURL];
documentsDirectoryBookmark = [self bookmarkForURL:documentsDirectoryBookmarkURL];
}
documentsDirectoryBookmarkURL = [self urlForBookmark:documentsDirectoryBookmark];
path = documentsDirectoryBookmarkURL.path;
path = [path stringByAppendingString:#"/Model.mod"];
return path;
}
using methods modified from my ios7 code (which used only the getDocumentsDirectory method):
+ (NSString *)getDocumentsDirectory
{
NSURL *directory = [self getDocumentsDirectoryURL];
NSString * documentsDirectory = directory.path;
return documentsDirectory;
}
And
+ (NSURL *)getDocumentsDirectoryURL
{
NSURL *directory = [[[NSFileManager defaultManager]
URLsForDirectory:NSDocumentDirectory
inDomains:NSUserDomainMask]
lastObject];
return directory;
}
And
+ (NSData*)bookmarkForURL:(NSURL*)url {
NSError* theError = nil;
NSData* bookmark = [url bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile
includingResourceValuesForKeys:nil
relativeToURL:nil
error:&theError];
if (theError || (bookmark == nil)) {
// Handle any errors.
return nil;
}
return bookmark;
}
So now I have a NSString path with the model filename that I can use to get to the GeoModel
- (GeoModel*) openGeoModel
{
GeoModel *geoModel;
NSString* documentsDirectoryGeoModel =[FileManager getGeoModelAbsolutePath];
if([FileManager fileExistsAtAbsolutePath:documentsDirectoryGeoModel])
{
NSData* data = [NSData dataWithContentsOfFile: documentsDirectoryGeoModel]; //]documentsDirectoryGeoModel];
geoModel = [NSKeyedUnarchiver unarchiveObjectWithData: data];
NSString *unarchivedGeoModelVersion = geoModel.geoModel_VersionID;
if(![unarchivedGeoModelVersion isEqual: currentGeoModelVersion])
{
[FileManager deleteFile:documentsDirectoryGeoModel];
geoModel = [GeoModel geoModelInit];
[Utilities setGeoProjectCounter:0];
}
}
else
{
geoModel = [GeoModel geoModelInit];
}
[FileManager saveGeoModel];
return geoModel;
}
Which I then can save to the documentsDirectory as follows:
+ (BOOL)saveGeoModel
{
NSError *error = nil;
NSString *path = [self getGeoModelAbsolutePath];
[NSKeyedArchiver archiveRootObject:appDelegate.currentGeoModel toFile:path];
NSData* encodedData = [NSKeyedArchiver archivedDataWithRootObject: appDelegate.currentGeoModel];
BOOL success = [encodedData writeToFile: path options:NSDataWritingAtomic error:&error];
return success;
}
Which is always successful -- but is persistent only if I do not turn off the device! I am not making any progress with this: Any help would be much appreciated!
Thanks in advance
Tim Redfield
There. I think it is answered -- unless someone else has a comment on how to improve the above listings, they DO work as they ought to!
How to upload using AFNetworking in ios app extension?
apple's example uses NSURLSession, can you explain to me how this works?
- (void)didSelectPost {
NSExtensionItem *imageItem = [self.extensionContext.inputItems lastObject];
// Verify that we have a valid NSExtensionItem
if (!imageItem) {
return;
}
// Verify that we have a valid NSItemProvider
NSItemProvider *imageItemProvider = [[imageItem attachments] firstObject];
if (!imageItemProvider) {
return;
}
// Look for an image inside the NSItemProvider
if ([imageItemProvider hasItemConformingToTypeIdentifier:(NSString *)kUTTypeImage]) {
[imageItemProvider loadItemForTypeIdentifier:(NSString *)kUTTypeImage options:nil completionHandler:^(id item, NSError *error) {
if (item)
{
NSData *data = [NSData dataWithContentsOfURL:item];
[self method:data];
}
[self.extensionContext completeRequestReturningItems:nil completionHandler:nil];
}];
}
}
How do I upload this data using this method or using AFNetworking or using my app to upload this?
- (void)method:(NSData *)data
{
NSString *confName = #"com.example.photoblog.backgroundconfiguration";
NSURLSessionConfiguration *conf = [NSURLSessionConfiguration backgroundSessionConfiguration:confName];
NSURLSession *session = [NSURLSession sessionWithConfiguration:conf delegate:self delegateQueue:nil];
NSURLRequest *requeust = [self requestForExtensionItems];
NSURLSessionUploadTask *upload = [session uploadTaskWithStreamedRequeust:request];
[upload resume];
}
You should setting app group both Your extension and containing app,then config session like this
config.sharedContainerIdentifier = #"group.xxxxx";
You can refer more info by this tutorial
http://www.shinobicontrols.com/blog/posts/2014/07/21/ios8-day-by-day-day-2-sharing-extension
I trying to implement Load image asynchronously.
NSURL *url = [NSURL URLWithString:_posterImg];
NSURLRequest* request = [NSURLRequest requestWithURL:url];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse * response,
NSData * data,
NSError * error) {
if (!error){
UIImage *getImg = [[UIImage alloc] initWithData:data];
// do whatever you want with image
}
}];
But when i put this code, getImg will get warning "Unused Variable". i had check "response", "data" and "error", it all look fine but the getImg is NIL. is that i had write any thing wrong? thanks.
The affected variable is response. Although you use data and error, response is only declared as a parameter but nowhere used in your completion handler!
NSURL *url = [NSURL URLWithString:_posterImg];
NSURLRequest* request = [NSURLRequest requestWithURL:url];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse * response,
NSData * data,
NSError * error) {
NSString *errorMsg = nil;
UIImage *getImg = nil;
if (!error){
getImg = [[UIImage alloc] initWithData:data];
}
else
{
errorMsg = [NSString stringWithFormat:#"Failed to load image. Error Message: %#", [error localizedString]];
}
[self handleImageRequestWithResponse:response image:getImg andErrorMessage:errorMsg];
}];
// Image hasn't load yet here since the request is asynchronously!
//if(getImg != nil && errorMsg == nil)
// NSLog(#"Image is available!");
//else
// NSLog(#"Loading the image asynchronously failed! %#", errorMsg);
// In addition now provide the following method.
- (void) handleImageRequestWithResponse:(NSURLResponse*)response image:(UIImage*)img andErrorMessage:(NSString*)err
{
if(img!= nil && err == nil)
NSLog(#"Image is available!");
else
NSLog(#"Loading the image asynchronously failed! %#", err);
// Handle image
};
EDIT: My bad! Since the code executes asynchronously getImg was of course nil when you checked as before
EDIT:
Using NSData dataWithContentsOfURL is synchronous,i.e. if executed on the main thread your application is blocked.
See this official documentation: https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSData_Class/Reference/Reference.html#//apple_ref/occ/clm/NSData/dataWithContentsOfURL:
Most important:
Important: Do not use this synchronous method to request network-based URLs. For network-based URLs, this method can block the current thread for tens of seconds on a slow network, resulting in a poor user experience, and in iOS, may cause your app to be terminated.
Going for a completionHandler and a handler method called after the requested raw data has been handled/prepared is better for your performance and does not violate the official recommendation!
I'm working with TWrequest to display my twitter lists in a tableview. The following code works. The problem is it is very slow to update the table. I am NSlogging the request response (which happens very quickly), I am also looping through each list and adding the list 'name' to an array (which again, happens very quickly <1s). But for some inexplicable reason, the table takes roughly a further 4 seconds or so to update.
Why is this taking so long for the table to reload? The problem is not parsing the response (because I can see with nslog this happens pretty quick), it's taking a long time to display in the table? Help very much appreciated!
-(IBAction)getLists{
// First, we need to obtain the account instance for the user's Twitter account
ACAccountStore *store = [[ACAccountStore alloc] init];
ACAccountType *twitterAccountType = [store accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
// Request permission from the user to access the available Twitter accounts
[store requestAccessToAccountsWithType:twitterAccountType withCompletionHandler:^(BOOL granted, NSError *error) {
if (!granted) {
// The user rejected your request
NSLog(#"User rejected access to the account.");
}
else {
// Grab the available accounts
twitterAccounts = [store accountsWithAccountType:twitterAccountType];
if ([twitterAccounts count] > 0) {
// Use the first account for simplicity
ACAccount *account = [twitterAccounts objectAtIndex:0];
// Now make an authenticated request to our endpoint
NSMutableDictionary *params = [[NSMutableDictionary alloc] init];
//[params setObject:#"1" forKey:#"include_entities"];
// The endpoint that we wish to call
NSURL *url = [NSURL URLWithString:#"http://api.twitter.com/1.1/lists/list.json"];
// Build the request with our parameter
TWRequest *request = [[TWRequest alloc] initWithURL:url parameters:params requestMethod:TWRequestMethodGET];
// Attach the account object to this request
[request setAccount:account];
[request performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
if (!responseData) {
// inspect the contents of error
NSLog(#"error = %#", error);
}
else {
NSError *jsonError;
NSArray *timeline = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableLeaves error:&jsonError];
if (timeline) {
// at this point, we have an object that we can parse
NSLog(#"timeline = %#", timeline);
for (NSDictionary *element in timeline) {
NSString *listName = [element valueForKey:#"name"];
[listsArray addObject:listName];
}
[listsTable reloadData];
}
else {
// inspect the contents of jsonError
NSLog(#"jsonerror = %#", jsonError);
}
}
}];
}
}
}];
}
Sorry, just came across this post. If you haven't found a solution yet, hopefully this will help.
I believe that performRequestWithHandler can be called on any thread, so UI changes should be dispatched to the main thread.
dispatch_async(dispatch_get_main_queue(), ^{
//update UI here
});
Or in the case of reloading table data you can use:
[self.tableView performSelectorOnMainThread:#selector(reloadData) withObject:nil waitUntilDone:NO];
I have a special URL that returns an image in a browser. I'd like to put this special image into a UIImage object. However, in my code sample below, it seems that the data returned is not an image.
The browser seems to know about the image, how can I get to the image?
Yes, I need get this image via the proxify proxy server to solve an issue we have.
Here is the sample code.
-(UIImage*)retrieveMap
{
NSString* proxifiedGoogleMapURL = #"http://proxify.com/p/011010A1000100/687474703a2f2f6d6170732e676f6f676c652e636f6d2f6d6170732f6170692f7374617469636d61703f63656e7465723d34312e3031343130312c2d3130342e393738333333267a6f6f6d3d362673697a653d35303678353036267363616c653d32266d6170747970653d726f61647326666f726d61743d706e672673656e736f723d66616c7365";
NSURLRequest * firstRequest = [NSURLRequest requestWithURL:[NSURL URLWithString: proxifiedGoogleMapURL]];
NSURLResponse * firstResponse = nil;
NSError * firstError = nil;
NSData* firstData = [NSURLConnection sendSynchronousRequest:firstRequest returningResponse:&firstResponse error:&firstError];
UIImage* dataAsImage = [UIImage imageWithData:firstData];
if(firstError != nil || dataAsImage == nil)
{
NSLog(#"Failed in retrieving the map");
}
else
{
NSLog(#"Succeeded in retrieving the map");
}
return dataAsImage;
}
I've spotted a few problems:
You should test firstError != nil before you try to convert to an UIImage. Testing it after kind of makes it useless.
I've tried to access that URL you posted and I got an error saying it is available only to users logged in. In the browser it might work for you since you are probably logged in, but the iphone is not and you get that HTML from proxify
To see the response you get, before creating the image convert it to NSString and display it to the console:
NSLog(#"Response from server: %#", [[NSString alloc] initWithData:firstData encoding:NSUTF8StringEncoding]