iOS 拍照后裁剪图片在上传，可以直接使用系统自带的API。
//push 相机
UIImagePickerController*picker = [[UIImagePickerControlleralloc]init];
picker.delegate=self;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.allowsEditing=YES;
[selfpresentViewController:pickeranimated:YEScompletion:nil];
//注意：picker.allowsEditing=YES;要设置
//代理方法获取图片
#pragma mark --选择相机的代理
#pragma mark - UIImagePickerControllerDelegate
- (void)imagePickerControllerDidCancel:(UIImagePickerController*)picker
{
[pickerdismissViewControllerAnimated:YEScompletion:nil];
}
- (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary*)info
{
[pickerdismissViewControllerAnimated:NOcompletion:^{
[UIApplicationsharedApplication].statusBarHidden=NO;
NSString*mediaType = [infoobjectForKey:UIImagePickerControllerMediaType];
if([mediaTypeisEqualToString:@"public.image"])
{
UIImage*originImage=[[UIImagealloc]init];
originImage=[info objectForKey:UIImagePickerControllerEditedImage];
//赋值控件
self.headImg.image= originImage;
//上传图片
[self uploadHeadImgWithImg:originImage];
}
}];
}
//注意： 只有使用originImage=[info objectForKey:UIImagePickerControllerEditedImage];才能出现裁剪图片界面。
