NSData dataWithContentsOfURL example ios

dataWithContentsOfURL:

Returns a data object containing the data from the location specified by a given URL.

+ (id)dataWithContentsOfURL:(NSURL *)aURL

Parameters

aURL

The URL from which to read data.

Return Value of [NSData dataWithContentsOfURL]

A data object containing the data from the location specified by aURL. Returns nil if the data object could not be created.

Discussion

If you need to know what was the reason for failure, use dataWithContentsOfURL :options:error:.

Example of [NSData dataWithContentsOfURL]

NSError* error = nil;
NSData* data = [NSData dataWithContentsOfURL:yourURL options:NSDataReadingUncached error:&error];
if (error) {
    NSLog(@"%@", [error localizedDescription]);
    [error release];
} else {
    NSLog(@"Data has loaded successfully.");
}