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最早CSS3和HTML5移动技术网站之一

iOS – 相机管理

简述

相机是移动设备中的常见功能之一。我们可以用相机拍照并在我们的应用程序中使用它,这也很简单。

相机管理 – 涉及的步骤

Step 1 – 创建一个简单的 View based application.
Step 2 – 添加一个 buttonViewController.xib 并为按钮创建 IBAction。
Step 3 – 添加一个 image view 并创建 IBOutlet 并将其命名为 imageView。
Step 4 − 更新 ViewController.h 如下 –

#import <UIKit/UIKit.h>
@interface ViewController : UIViewController<UIImagePickerControllerDelegate> {
UIImagePickerController *imagePicker;
IBOutlet UIImageView *imageView;
}
- (IBAction)showCamera:(id)sender;
@end

Step 5 − 更新 ViewController.m 如下 –

#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

输出

当我们运行应用程序并单击显示相机按钮时,我们将获得以下输出 –
iOS 教程
拍照后,我们可以编辑图片,即移动和缩放,如下所示 –
iOS 教程

炫意HTML5 » iOS – 相机管理

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