Issue With selecting multiple images - iphone

Question

How to detect total available/free disk space on the iPhone/iPad device?

Answer 1

I assume that clicking that "done" button would invoke cancelling the picker; in which case you can try did you try implementing the delegate method:
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[self dismissViewControllerAnimated:YES completion:^(void) {
NSLog(#"Cancelled pick");
};
}
Also it looks like you're calling release -- any reason you're not using ARC?
If I had to guess, I'd say perhaps the alert dismiss is in fact calling something like
[imagePicker.delegate imagePickerControllerDidCancel:imagePicker];
but it's already released so you're seeing this "lock-up" issue. Maybe step through in the debugger and make sure those objects still exist.
Edit:
While it doesn't solve your original issue, you could do a check for available space prior to launching the image picker, possibly with something like this so post suggests:
- (uint64_t)freeDiskspace
{
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
__autoreleasing NSError *error = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDictionary *dictionary = [[NSFileManager defaultManager] attributesOfFileSystemForPath:[paths lastObject] error: &error];
if (dictionary) {
NSNumber *fileSystemSizeInBytes = [dictionary objectForKey: NSFileSystemSize];
NSNumber *freeFileSystemSizeInBytes = [dictionary objectForKey:NSFileSystemFreeSize];
totalSpace = [fileSystemSizeInBytes unsignedLongLongValue];
totalFreeSpace = [freeFileSystemSizeInBytes unsignedLongLongValue];
NSLog(#"Memory Capacity of %llu MiB with %llu MiB Free memory available.", ((totalSpace/1024ll)/1024ll), ((totalFreeSpace/1024ll)/1024ll));
} else {
NSLog(#"Error Obtaining System Memory Info: Domain = %#, Code = %d", [error domain], [error code]);
}
return totalFreeSpace;
}