IOS调取系统摄像头

  

   

    

     

    
    

     

      1、打开摄像头
     
    
   

    

     

    
    

     

      - (IBAction)Open:(id)sender {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              picker.sourceType = UIImagePickerControllerSourceTypeCamera;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSArray *temp_MediaTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              picker.mediaTypes = temp_MediaTypes;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              picker.delegate = self;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              picker.allowsImageEditing = YES; 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          [self presentModalViewController:picker animated:YES];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          [picker release];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      2.拍照回调
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
     NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
     BOOL success;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    NSFileManager *fileManager = [NSFileManager defaultManager];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    NSError *error;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    NSString *documentsDirectory = [paths objectAtIndex:0];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    if ([mediaType isEqualToString:@"public.image"]){
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        UIImage *image = [info objectForKey:@"UIImagePickerControllerEditedImage"];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSLog(@"found an image");
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
       NSString *imageFile = [documentsDirectory stringByAppendingPathComponent:@"temp.jpg"];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSLog(@"%@", imageFile);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              success = [fileManager fileExistsAtPath:imageFile];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        if(success) {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

                  success = [fileManager removeItemAtPath:imageFile error:&error];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              imageView.image = image;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              [UIImageJPEGRepresentation(image, 1.0f) writeToFile:imageFile atomically:YES];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
         //SETIMAGE(image);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        //CFShow([[NSFileManager defaultManager] directoryContentsAtPath:[NSHomeDirectory() stringByAppendingString:@"/Documents"]]);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    else if([mediaType isEqualToString:@"public.movie"]){
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSLog(@"%@", videoURL);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSLog(@"found a video");
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        /****************************************/
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSString *videoFile = [documentsDirectory stringByAppendingPathComponent:@"temp.mov"];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        NSLog(@"%@", videoFile);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              success = [fileManager fileExistsAtPath:videoFile];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        if(success) {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

                  success = [fileManager removeItemAtPath:videoFile error:&error];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              [videoData writeToFile:videoFile atomically:YES];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        //CFShow([[NSFileManager defaultManager] directoryContentsAtPath:[NSHomeDirectory() stringByAppendingString:@"/Documents"]]);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        //NSLog(videoURL);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          [picker dismissModalViewControllerAnimated:YES];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

             [picker dismissModalViewControllerAnimated:YES];
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      }
     
    
  
 

  
 
 

文章来源: zzzili.blog.csdn.net，作者：清雨小竹，版权归原作者所有，如需转载，请联系作者。

原文链接：zzzili.blog.csdn.net/article/details/49391873