IOS成长之路-调用照相机和相册功能(转)

转载自:http://blog.csdn.net/like7xiaoben/article/details/8465237

1. //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
2. UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypeCamera;
3. //    if (![UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]) {
4. //        sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
5. //    }
6. //sourceType = UIImagePickerControllerSourceTypeCamera; //照相机
7. //sourceType = UIImagePickerControllerSourceTypePhotoLibrary; //图片库
8. //sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; //保存的相片
9. UIImagePickerController *picker = [[UIImagePickerController alloc] init];//初始化
10. picker.delegate = self;
11. picker.allowsEditing = YES;//设置可编辑
12. picker.sourceType = sourceType;
13. [self presentModalViewController:picker animated:YES];//进入照相界面
14. [picker release];

打开相册：（区分pad和iphone）

for iphone：

1. UIImagePickerController *pickerImage = [[UIImagePickerController alloc] init];
2. if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
3. pickerImage.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
4. //pickerImage.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
5. pickerImage.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:pickerImage.sourceType];
6. }
7. pickerImage.delegate = self;
8. pickerImage.allowsEditing = NO;
9. [self presentModalViewController:pickerImage animated:YES];
10. [pickerImage release];

for ipad:

1. UIImagePickerControllerSourceType sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
2. //sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; //保存的相片
3. UIImagePickerController *picker = [[UIImagePickerController alloc] init];
4. picker.delegate = self;
5. picker.allowsEditing = NO;//是否允许编辑
6. picker.sourceType = sourceType;
7. /*
8. 如果从一个导航按钮处呈现，使用：
9. presentPopoverFromBarButtonItem:permittedArrowDirections:animated:；
10. 如果要从一个视图出呈现，使用：
11. presentPopoverFromRect:inView:permittedArrowDirections:animated:
12. 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：
13. didRotateFromInterfaceOrientation:（在这个方法体里面重新设置rect）
14. 然后再次调用：
15. - (void)presentPopoverFromRect:(CGRect)rect inView:(UIView *)view permittedArrowDirections:(UIPopoverArrowDirection)arrowDirections animated:(BOOL)animated
16. */
17. //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。
18. UIPopoverController *popover = [[UIPopoverController alloc]initWithContentViewController:picker];
19. self.imagePicker = popover;
20. //permittedArrowDirections 设置箭头方向
21. [self.imagePicker presentPopoverFromRect:CGRectMake(0, 0, 300, 300) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
22. [picker release];
23. [popover release];

点击相册中的图片 货照相机照完后点击use  后触发的方法

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

点击cancel 调用的方法

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker

例子下载地址：http://download.csdn.net/download/like7xiaoben/4958356