打开相机：
- //先设定sourceType为相机，然后判断相机是否可用（ipod）没相机，不可用将sourceType设定为相片库
- UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
- // if (![UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]) {
- // sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
- // }
- //sourceType = UIImagePickerControllerSourceTypeCamera; //照相机
- //sourceType = UIImagePickerControllerSourceTypePhotoLibrary; //图片库
- //sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; //保存的相片
- UIImagePickerController *picker = [[UIImagePickerController alloc] init];//初始化
- picker.delegate = self;
- picker.allowsEditing = YES;//设置可编辑
- picker.sourceType = sourceType;
- [self presentModalViewController:picker animated:YES];//进入照相界面
- [picker release];
打开相册：（区分pad和iphone）
for iphone：
- UIImagePickerController *pickerImage = [[UIImagePickerController alloc] init];
- if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
- pickerImage.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
- //pickerImage.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
- pickerImage.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:pickerImage.sourceType];
- }
- pickerImage.delegate = self;
- pickerImage.allowsEditing = NO;
- [self presentModalViewController:pickerImage animated:YES];
- [pickerImage release];
for ipad:
- UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
- //sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; //保存的相片
- UIImagePickerController *picker = [[UIImagePickerController alloc] init];
- picker.delegate = self;
- picker.allowsEditing = NO;//是否允许编辑
- picker.sourceType = sourceType;
- /*
- 如果从一个导航按钮处呈现，使用：
- presentPopoverFromBarButtonItem:permittedArrowDirections:animated:；
- 如果要从一个视图出呈现，使用：
- presentPopoverFromRect:inView:permittedArrowDirections:animated:
- 如果设备旋转以后，位置定位错误需要在父视图控制器的下面方法里面重新定位：
- didRotateFromInterfaceOrientation:（在这个方法体里面重新设置rect）
- 然后再次调用：
- - (void)presentPopoverFromRect:(CGRect)rect inView:(UIView *)view permittedArrowDirections:(UIPopoverArrowDirection)arrowDirections animated:(BOOL)animated
- */
- //UIPopoverController只能在ipad设备上面使用；作用是用于显示临时内容，特点是总是显示在当前视图最前端，当单击界面的其他地方时自动消失。
- UIPopoverController *popover = [[UIPopoverController alloc]initWithContentViewController:picker];
- self.imagePicker = popover;
- //permittedArrowDirections 设置箭头方向
- [self.imagePicker presentPopoverFromRect:CGRectMake(0, 0, 300, 300) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
- [picker release];
- [popover release];
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
