相机调用

//原理:调用

#import "ViewController.h"

@interface ViewController ()<UIImagePickerControllerDelegate,UINavigationControllerDelegate>

@property(nonatomic,weak)UIImageView *photoImage;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    

    UIImageView *image=[[UIImageView alloc]initWithFrame:self.view.bounds];

    image.backgroundColor=[UIColor grayColor];

    [self.view addSubview:image];

    self.photoImage=image;

    

    [image setUserInteractionEnabled:YES];

    

    

}

//点击屏幕进行图片拍摄

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

    NSLog(@"开启射像头");

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

    //设置摄像头类型 摄像头

    picker.sourceType=UIImagePickerControllerSourceTypeCamera;

    //打开相册

    //picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;

    //设置代理

    picker.delegate=self;

    

    //显示控制器

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

    

}

#pragma mark UIImagePickerControllerDelegate

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

    //获取图片,

    UIImage *image=info[UIImagePickerControllerOriginalImage];

    self.photoImage.image=image;

    //退出控制器

    [picker dismissViewControllerAnimated:YES completion:nil];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

}

@end