IOS相機(jī)管理

相機(jī)簡(jiǎn)介

相機(jī)是移動(dòng)設(shè)備的共同特點(diǎn)之一，我們能夠使用相機(jī)拍攝圖片，并在應(yīng)用程序里調(diào)用它，而且相機(jī)的使用很簡(jiǎn)單。

實(shí)例步驟

1、創(chuàng)建一個(gè)簡(jiǎn)單的View based application

2、在ViewController.xib中添加一個(gè)button （按鈕），并為該按鈕創(chuàng)建IBAction

3、添加一個(gè) image view （圖像視圖），并創(chuàng)建一個(gè)名為imageView的IBOutlet

4、ViewController.h文件代碼如下所示：

#import <UIKit/UIKit.h>@interface ViewController : UIViewController<UIImagePickerControllerDelegate>{   
   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