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Questions tagged [nsinputstream]

NSInputStream is an Objective-C class on iOS , a subclass of NSStream that provides read-only stream functionality. NSInputStream is “toll-free bridged” with its Core Foundation counterpart, CFReadStreamRef.

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NSStreamEventEndEncountered not happen for NSInputStream when read content from file

I created a NSInputStream to load content from a file(IOS): NSString* fileName = [[NSBundle mainBundle] pathForResource:@"resource" ofType:@".dat"]; NSInputStream* dataStream = [NSInputStream inputStreamWithFileAtPath:fileName]; if (dataStream ==…
crax
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How to convert NSInputStream to NSString or how to read NSInputStream

I'm trying to convert my input stream to a string. The input stream I'm trying to convert is NSURLRequest.HTTPBodyStream, apparently the httpbody is set to null and replaced with the stream after you make the request. how do I go about doing this?…
Minimi
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Methods to render a PDF into a very high resolution NSImage bitmap file

I have to render a PDF into a very high resolution image (say up to and even over 100,000 * 80,000 pixels). I managed to do that without going out of ram by splitting the render into several slices and then rendering each one using NSOperationQueue,…
Fabio Cionini
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Parse JSON String which contains an array with InputReader?

I have a problem with JSON. I searched through Internet, but didn't found any solution that worked for me. For better working I saved the answer (JSON) of the server in a *.json file. The JSON is looking like this (short…
TBockmair
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NSOutputStream blocking, HasBytesAvailable event was not triggered

I am trying to create custom framework that will deal with ExternalAccessory.framework to do read/write operation with the connected accessory. I can able to create a session and open the device to do read/write operations. Problem i am facing was,…
iosLearner
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Save audio data from NSInputStream into a file

I'm using multipeerconnectivity framework to transfer audio samples (CMSampleBufferRef) from the microphone. I can pass the samples using NSOutputStream for send data and NSInputStream for receive data. Once I receive the data in the other device,…
Pablo Martinez
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Convert an Objective-C method into Swift for NSInputStream (convert bytes into double)

I have the following code in Objective-C: - (double)readDouble { double value = 0.0; if ([self read:(uint8_t *)&value maxLength:8] != 8) { NSLog(@"***** Couldn't read double"); } return value; } It works. But I don't…
Bagusflyer
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Reading a NSInputStream produces a -1 bytes available error

I'm trying to do some simple encoding using NSInputStream and NSOutputStream: import Foundation let path = "/Users/johni/desktop/a" // holds "123456789abcdef" var data: NSData = NSData(contentsOfFile: path) var inp: NSInputStream =…
johni
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NSInputStream with url coming up nil in iOS

I'm trying to set up a NSInputStream, but my input stream is comes out as nil when I step into the code. The url comes from a Dropbox account. Getting the file through NSData after I have the url through Dropbox Chooser crashes my iPhone 4…
MScottWaller
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Captcha on iPhone.

I have a website, require input username, pass and captcha to login. Now, I develop an application on iPhone to login that website. I don't know how to get that captcha and show on iphone. I can get that Captcha in NSData and convert it into…
Brave
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NSInputStream non-stop connection?

So I have both an input stream and an output stream and they are setup as the code provided below. The input stream's delegate method NSStreamEventHasBytesAvailable is called only when i write somedata onto the output stream. Why is that? //…
Legolas
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NSStreamDelegate not receiving messages

I have a TCP connection class which uses the NSStreamDelegate and works fine. It receives messages and respond to them in any matter. In some cases it should open a second connection. This is a second class which is quite similar to the first…
Julian F. Weinert
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Does -[NSInputStream read:maxLength:] block?

I can't seem to find the answer to this anywhere, but does read:maxLength: on NSInputStream block until data is available or there is an error, or do I need to poll on hasBytesAvailable before attempting to read?
Patrick McDaniel
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I cannot initialize a NSInputStream

Please help me, im going insane. I need to create an NSInputStream so i can read a live preview from a camera over wifi. liveViewStream is an NSInputStream-Instance-Variable that is declared in my implementation like so: @implementation…
katzenhut
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What Am I Missing? : iPhone Objective-C NSInputStream initWithData

I'm creating an NSInputStream from an NSData object but once created the stream reports NO for hasBytesAvailable: NSData* data = [outputStream propertyForKey: NSStreamDataWrittenToMemoryStreamKey]; NSLog(@"creating stream with data 0x%x length…
gabe
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