snap.m

iPhone development example: Camera control

#import <Foundation/Foundation.h>
#import <PhotoLibrary/CameraController.h>
#import <UIKit/UIKit.h>

@interface SnapApp : UIApplication
{
    NSString *filename;
}
- (id)_initWithArgc:(int)argc argv:(const char **)argv;
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification;
@end

@implementation SnapApp
- (id)_initWithArgc:(int)argc argv:(const char **)argv {
    filename = [ [ NSString alloc ] initWithCString: argv[1] ];
    return [ super _initWithArgc: argc argv: argv ];
}

- (void)cameraControllerReadyStateChanged:(NSNotification *)aNotification
{

}

-(void)cameraController:(id)sender
    tookPicture:(UIImage*)picture
    withPreview:(UIImage*)preview
    jpegData:(NSData*)rawData
    imageProperties:(struct __CFDictionary *)imageProperties
{
    [ rawData writeToFile: filename atomically: NO ];
    [ self terminate ];
}

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
    CameraController *camera = [ [ CameraController alloc ] init ]; 

    [ camera setDelegate: self ];
    [ camera startPreview ];

    printf("Smile...\n");
    sleep(1);
    [ camera capturePhoto ];
    [ camera stopPreview ];
}

int main(int argc, char *argv[])
{
    NSAutoreleasePool *autoreleasePool = [ [ NSAutoreleasePool alloc ] init ];
    int returnCode;
    if (argc == 2) {
        returnCode = UIApplicationMain(argc, argv, [ SnapApp class ]);
    } else {
        fprintf(stderr, "Syntax: %s [filename]\n", argv[0]);
    }
    [ autoreleasePool release ];
    return returnCode;
}
@end