<转>IOS_ImagePicker还有ActionSheet

转自http://blog.csdn.net/lele9001/article/details/7446865

这个是基于IOS5.0的ImagePicker,所以都没有release,大家适当加上去吧~

 

先上效果图:

 

 

小牺牲一下我小侄吧..

 

 #import <UIKit/UIKit.h>  
   
 @interface DemoViewController : UIViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIActionSheetDelegate>  
 @property (weak, nonatomic) IBOutlet UIImageView *selectedImage;  
 -(IBAction)imagePick:(id)sender;  
 @end  

 

关键代码..其它剩余部分你懂的

-(void)takeByCamera  
  
{  
  
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];  
  
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;  
  
    picker.delegate = self;  
  
    [self presentModalViewController:picker animated:YES];  
  
}  
  
-(void)takeByPhotoLibrary  
  
{  
  
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];  
  
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;  
  
    picker.delegate = self;  
  
    [self presentModalViewController:picker animated:YES];  
  
}  
  
  
  
  
  
-(IBAction)imagePick:(id)sender  
  
{  
  
    UIActionSheet *actionSheet = [[UIActionSheet alloc]   
  
                                  initWithTitle:@"Please Select Photo"                                
  
                                  delegate:self   
  
                                  cancelButtonTitle:@"Cancel"   
  
                                  destructiveButtonTitle:nil   
  
                                  otherButtonTitles:@"From Camera",   
  
                                                    @"From Photo Library",  
  
                                  nil];  
  
    [actionSheet showInView:self.view];  
  
      
  
}  
  
  
  
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex  
  
{  
  
    switch (buttonIndex) {  
  
        case 0:  
  
            [self takeByCamera];  
  
            break;   
  
              
  
        case 1:  
  
            [self takeByPhotoLibrary];  
  
            break;  
  
   
  
        default:  
  
            break;  
  
    }  
  
}  
  
  
  
  
  
  
  
  
  
-(void) imagePickerControllerDidCancel:(UIImagePickerController *)picker{  
  
      
  
    [picker dismissModalViewControllerAnimated:YES];  
  
}  
  
  
  
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info  
  
{  
  
    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];  
  
      
  
//Display in ImageView object (if you want to display it  
  
[self.selectedImage setImage:image];  
  
      
  
//Take image picker off the screen (required)  
  
[self dismissModalViewControllerAnimated:YES];  
  
}  
  
  
  
-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo  
  
{  
  
    // TempImage is a UIImage instance  
  
    
  
    //bgImage is a UIImageView instance and it's connected in the IB  
  
    [self.selectedImage setImage:image];  
  
    // Dismiss UIImagePickerController and release it  
  
    [picker dismissModalViewControllerAnimated:YES];  
  
}  

 

结论:主要用的是UIImagePickerControllerDelegate这个事件委托来实现照相以及进入照片库的~

 

另外   将图片保存到相册中用

UIImage *image=[UIImageimageNamed:@"xxx"];

    UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);