IOS 开发调用摄像头

参照文章：http://www.cnblogs.com/gcb999/p/3223469.html

                      http://blog.sina.com.cn/s/blog_9693f61a01016alr.html

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    UIButton *button=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    button.frame=CGRectMake(0, 0, 200, 50);
    [button setTitle:@"aa" forState:UIControlStateNormal];
    [button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:button];
}
//调动摄像头拍摄
-(void)click:(UIButton *)btn{
    
    UIImagePickerController *imagePicker=[[UIImagePickerController alloc] init];
    imagePicker.delegate=self;
//    imagePicker.view.frame=s
    if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
     imagePicker.sourceType=UIImagePickerControllerSourceTypeCamera;
        
    }
   // imagePicker.allowsEditing=YES;
//    [self.view addSubview:imagePicker.view];
[self presentViewController:imagePicker animated:YES completion:^{
    
}]; 

#pragma mark------从相册选择------------

- (void) chooseFromAlbum {

    UIImagePickerController *picker = [[UIImagePickerController alloc] init];

    picker.delegate = self;

    picker.allowsEditing = NO;

    //从相册列表选取

    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

    

    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {

        //此处设置只能使用相机，禁止使用视频功能

//        picker.mediaTypes = [[NSArray alloc]initWithObjects:(NSString *)kUTTypeImage,nil];

    }

    [self presentViewController:picker animated:YES completion:nil];

}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo {
    
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
    [self dismissViewControllerAnimated:YES completion:nil];
    NSLog(@"%@",info);
  UIImage *image=[info objectForKey:UIImagePickerControllerOriginalImage];

    self.image.image=image;
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
    [self dismissViewControllerAnimated:YES completion:^{
        
    }];
}

#pragma mark---保存相册到本地-------

 

- (void)saveImage

{

    int index = _scrollView.contentOffset.x / _scrollView.bounds.size.width;

    ZoomScroll *currentImageView = _scrollView.subviews[index];

    UIImageWriteToSavedPhotosAlbum(currentImageView.imageView.image, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);

    UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] init];

    indicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;

    indicator.center = self.center;

    _indicatorView = indicator;

    [[UIApplication sharedApplication].keyWindow addSubview:indicator];

    [indicator startAnimating];

}

 

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo;

{

    [_indicatorView removeFromSuperview];

    UILabel *label = [[UILabel alloc] init];

    label.textColor = [UIColor whiteColor];

    label.backgroundColor = [UIColor colorWithRed:0.1f green:0.1f blue:0.1f alpha:0.90f];

    label.layer.cornerRadius = 5;

    label.clipsToBounds = YES;

    label.bounds = CGRectMake(0, 0, 150, 30);

//    label.frame = SIZE_RectMake((ScreenWidth - label.bounds.size.width)/2, -10, 150, 30);

    label.center = self.center;

    

    label.textAlignment = NSTextAlignmentCenter;

    label.font = [UIFont boldSystemFontOfSize:17];

    [[UIApplication sharedApplication].keyWindow addSubview:label];

    [[UIApplication sharedApplication].keyWindow bringSubviewToFront:label];

    if (error) {

        label.text = SDPhotoBrowserSaveImageFailText;

    }   else {

        label.text = SDPhotoBrowserSaveImageSuccessText;

    }

    

//    [UIView animateWithDuration:0.4 animations:^{

//        label.frame = SIZE_RectMake((ScreenWidth - label.bounds.size.width)/2, (ScreenHeight - 30)/2, 150, 30);

//    }];

//    // 延迟2秒执行

//    

//    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.4 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

//        [UIView animateWithDuration:0.25  animations:^{

//            

//            label.frame = SIZE_RectMake((ScreenWidth - label.bounds.size.width)/2, (ScreenHeight - 30)/2 - 30, 150, 30);

//            NSLog(@"11111");

//            

//        }];

//    });

//

//    dispatch_after(dispatch_time(DISPATCH_TIME_NOW + 0.4, (int64_t)(2.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

//        [UIView animateWithDuration:0.4 animations:^{

//            NSLog(@"2222");

//            label.frame = SIZE_RectMake((ScreenWidth - label.bounds.size.width)/2 , (ScreenHeight + 5), 150, 30);

//            

//        }];

//    });

//    

//    dispatch_after(dispatch_time(DISPATCH_TIME_NOW + 5, (int64_t)(2.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

//        

//         NSLog(@"33333");

//        [label removeFromSuperview];

//       

//    });

    

    [label performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:2.0];

}