庫中的照片不會移動和縮放

Question

在我的應用程序中，用戶可以使用下面的代碼從庫中選擇一張照片。因爲我希望用戶裁剪照片，所以我確保setAllowsEditing：YES。

當您選擇照片時，您可以移動和縮放圖像，但稍後當圖像被查看（selectedImage）時，圖像會恢復到其原始大小？

myPicker = [[UIImagePickerController alloc] init]; 
    [myPicker setSourceType: UIImagePickerControllerSourceTypePhotoLibrary]; 
    [myPicker setToolbarHidden:NO]; 
    [myPicker setAllowsEditing:YES]; 
    myPicker.delegate = self; 

    //this adds mypicker to current view 
    [self presentViewController:myPicker animated:YES completion:NULL]; 


-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{ 
selectedImage = [[UIImage alloc]init]; 

selectedImage = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; 

Answer 1

你只需要使用 「UIImagePickerControllerEditedImage」 而不是 「UIImagePickerControllerOriginalImage」。

謝謝。