相机是移动设备中的常见功能之一。无涯教程可以用相机拍照并在无涯教程的应用程序中使用它，这也非常简单。
相机管理步骤
步骤1 - 创建一个简单的基于视图的应用程序。
步骤2 - 在 ViewController.xib 中添加按钮并为该按钮创建IBAction。
步骤3 - 添加图像视图并创建IBOutlet，将其命名为imageView。
步骤4 - 如下更新 ViewController.h -
#import <UIKit/UIKit.h>@interface ViewController : UIViewController<UIImagePickerControllerDelegate> { UIImagePickerController imagePicker; IBOutlet UIImageView imageView; }
- (IBAction)showCamera:(id)sender; @end
步骤5 - 如下更新 ViewController.m -
#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];
</span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">image </span><span class="pun">==</span><span class="pln"> </span><span class="kwd">nil</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
image</span><span class="pun">=[</span><span class="pln">info objectForKey</span><span class="pun">:</span><span class="typ">UIImagePickerControllerOriginalImage</span><span class="pun">];</span><span class="pln">
</span><span class="pun">}</span><span class="pln">
imageView.image=image;
}
-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[self dismissModalViewControllerAnimated:YES];
}
@end
当无涯教程运行该应用程序并单击"显示摄像机"按钮时，将获得以下输出-
拍照后，无涯教程可以编辑图片，即如下所示移动和缩放-
