iOS相機管理(lǐ)

IOS相機管理(lǐ)

相機簡介

相機是移動設備的共同特點之一，我們能(néng)夠使用(yòng)相機拍(pāi)攝圖片，并在應用(yòng)程序裏調用(yòng)它，而且相機的使用(yòng)很(hěn)簡單。

實例步驟

1、創建一個簡單的View based application

2、在ViewController.xib中添加一個button （按鈕），并爲該按鈕創建IBAction

3、添加一個 image view （圖像視(shì)圖），并創建一個名爲imageView的IBOutlet

4、ViewController.h文(wén)件代碼如下(xià)所示：

#import

@interface ViewController : UIViewController

{

UIImagePickerController *imagePicker;

IBOutlet UIImageView *imageView;

}

- (IBAction)showCamera:(id)sender;

@end

5、修改ViewController.m,如下(xià)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