iOS相机管理

IOS相机管理

相机简介

相机是移动设备的共同特点之一，我们能够使用相机拍摄图片，并在应用程序里调用它，而且相机的使用很简单。

实例步骤

1、创建一个简单的View based application

2、在ViewController.xib中添加一个button （按钮），并为该按钮创建IBAction

3、添加一个 image view （图像视图），并创建一个名为imageView的IBOutlet

4、ViewController.h文件代码如下所示：

#import

@interface ViewController : UIViewController

{

UIImagePickerController *imagePicker;

IBOutlet UIImageView *imageView;

}

- (IBAction)showCamera:(id)sender;

@end

5、修改ViewController.m,如下所示：

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad

{

[super viewDidLoad];

}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

- (IBAction)showCamera:(id)sender {

imagePicker.allowsEditing = YES;

if ([UIImagePickerController isSourceTypeAvailable:

UIImagePickerControllerSourceTypeCamera])

{

imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;

}

else{

imagePicker.sourceType =

UIImagePickerControllerSourceTypePhotoLibrary;

}

[self presentModalViewController:imagePicker animated:YES];

}

-(void)imagePickerController:(UIImagePickerController *)picker

didFinishPickingMediaWithInfo:(NSDictionary *)info{

UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];

if (image == nil) {

image = [info objectForKey:UIImagePickerControllerOriginalImage];

}

imageView.image = image;

}

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{

[self dismissModalViewControllerAnimated:YES];

}

@end