Question

其实我正在尝试截取并将其保存到Android图库中，我正在使用一个开源库“Unity Native Gallery”我的代码如下：

NativeGallery.Permission permission = NativeGallery.CheckPermission();
if (permission == NativeGallery.Permission.Granted) {
     Debug.Log("May proceed");
 }
else {
     Debug.Log("Not allowed");
}
// Output ==> "May Proceed"

Debug.Log("Path is "+NativeGallery.GetSavePath("GalleryTest","My_img_{0}.png"));
//Output ==>  /storage/emulated/0/DCIM/GalleryTest/My_img_1.png

Texture2D ss = new Texture2D( Screen.width, Screen.height, TextureFormat.RGB24, false );
ss.ReadPixels( new Rect( 0, 0, Screen.width, Screen.height ), 0, 0 );
ss.Apply();

Debug.Log("Secondlast");
permission = NativeGallery.SaveImageToGallery( ss, "GalleryTest", "My_img_{0}.png" ) ;

Debug.Log("Done screenshot");

但是我从不保存屏幕截图，当我看到控制台时，我得到了2个重要的日志

1.我的调试日志“SecondLast”在控制台上打印但不是最后一个“Done screenshot”

2.有一个异常打印“UnauthorizedAccessException：访问路径”/storage/emulated/0/DCIM/GalleryTest/My_img_1.png“被拒绝。”

重点： - 我已经在统一播放器设置中将写入权限设置为外部（SDCard）。（实际上我尝试使用“内部”和“外部”两种设置）

Answer 1

我查看了他们的回购，使用您提供的源代码，似乎您正在尝试截取屏幕截图并保存，无论您是否拥有权限。这可能是您的问题：

NativeGallery.Permission permission = NativeGallery.CheckPermission();
if (permission == NativeGallery.Permission.Granted) 
{
     Debug.Log("May proceed");
}
else 
{
     Debug.Log("Not allowed");
     // You do not break out of the function here so it will attempt to save anyways
}

你应该看起来像这样：

NativeGallery.Permission permission = NativeGallery.CheckPermission();
if (permission == NativeGallery.Permission.ShouldAsk) 
{
     permission = NativeGallery.RequestPermission();
     Debug.Log("Asking");
}
// If we weren't denied but told to ask, this will handle the case if the user denied it.
// otherwise if it was denied then we return and do not attempt to save the screenshot
if (permission == NativeGallery.Permission.Denied) 
{
     Debug.Log("Not allowed");
     return;
}
Debug.Log("Path is "+NativeGallery.GetSavePath("GalleryTest","My_img_{0}.png"));
//Output ==>  /storage/emulated/0/DCIM/GalleryTest/My_img_1.png

Texture2D ss = new Texture2D( Screen.width, Screen.height, TextureFormat.RGB24, false );
ss.ReadPixels( new Rect( 0, 0, Screen.width, Screen.height ), 0, 0 );
ss.Apply();

Debug.Log("Secondlast");
permission = NativeGallery.SaveImageToGallery( ss, "GalleryTest", "My_img_{0}.png" ) ;

Debug.Log("Done screenshot");

C＃unity脚本使用库UnityNativeGallery在android库中获取并保存屏幕截图

1 个答案: