如何像在联系人中添加照片选项一样，实现编辑照片的移动缩放图片选项

Question

在我的iPhone应用程序i中添加了照片选项，因为我添加了照片from library as well as captured images。

当我打开图像选择器来添加/捕获图像时，它只显示retake & use照片。

当我点击“使用”时，它会显示为图像视图中的图像。

但是i need to display my selected crop,就像在iphone的联系人应用中添加照片一样

我通过设置self.imagePickerController.allowsEditing = YES;做了

但是，每当我想编辑图像时，我都需要返回原始图像，而不是图像选择器中的缩放/裁剪图像，以重新编辑。

Answer 1

您必须将allowEditing of UIImagePickerController设置为“是”，请尝试以下操作：

- (IBAction)takePicture:(id)sender {
UIImagePickerController *imagePicer = [[UIImagePickerController alloc] init];
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
    [imagePicer setSourceType:UIImagePickerControllerSourceTypeCamera];
} else {
    [imagePicer setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
}

// This will sets the editing mode after taking of picking image from image picker

[imagePicer setAllowsEditing:YES];
[imagePicer setDelegate:self];

//place image picker on the screen
[self presentViewController:imagePicer animated:YES completion:nil];
}

如果您想使用编辑后的图像，请将"UIImagePickerControllerOriginalImage“更改为"UIImagePickerControllerEditedImage"，就这样！