display image

- (void)displayImage {
    NSString *imageName = [@"http://upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png" lastPathComponent];
    NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentDirectoryPath = dirPaths[0];
    NSString *filePath = [documentDirectoryPath stringByAppendingString:imageName];
    UIImage *image = [[UIImage alloc] initWithContentsOfFile:filePath];
    [self.scheduleImage setImage:image];
}