IOS 使用相机或者在相册里获取图片

相机：

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {

UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.delegate = self;
picker.allowsEditing = YES;
[self presentViewController:picker animated:YES completion:nil];
}



画册：
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
picker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType];
picker.delegate = self;
picker.allowsEditing = YES;
[self presentViewController:picker animated:YES completion:nil];
}


取得图片

#pragma mark - UIImagePickerControllerDelegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[self dismissViewControllerAnimated:YES completion:nil];
//    NSString* mediaType = [info objectForKey:UIImagePickerControllerMediaType];
self.imageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[self.presentedViewController dismissViewControllerAnimated:YES completion:nil];
}