Cannot call public static method inside a public class

Question

I've been trying to generate thumbnails for images and videos using Android's inbuilt ThumbnailUtils class. Video thumbnail generation succeeds properly via the createVideoThumbnail(..) method. However, I cannot even call the related method createImageThumbnail. Both methods are declared public and static. Here's the github link to the source.

How is it possible to restrict clients from using a public static method selectively in Java?

[Edit]: See this link for more info about using Android's internal/hidden methods:

"I cannot even call the related method createImageThumbnail" - which result do you get? compile-time, run-time? — Smutje, May 28 '15 at 09:08
Compile time. (eclipse complains "The method createImageThumbnail(String, int) is undefined for the type ThumbnailUtils") — Kedar Paranjape, May 28 '15 at 09:09
means you have to call public static method inside public class ? am i right ? — krunal shah, May 28 '15 at 09:14

score 3 · Accepted Answer · edited May 23 '17 at 12:06

3

The documentation for createImageThumbnail contains the @hide which makes it not callable outside of the Android SDK.

More information about @hide here.

edited May 23 '17 at 12:06

Community

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answered May 28 '15 at 09:12

Gaëtan

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Awesome, thanks! Now, how do I use `@hide` for my functions? It doesn't seem to work for my functions. – Kedar Paranjape May 28 '15 at 09:31
You can't call it directly. You have to use reflection to do so. See the second link in my answer for an example. – Gaëtan May 28 '15 at 09:38
No, i meant how do I hide my custom methods? (I read your link and was able to call the method via reflection) – Kedar Paranjape May 28 '15 at 09:39
Oh sorry. I don't know. I never tried to do it myself. Try asking a new question for that. – Gaëtan May 28 '15 at 09:41

Cannot call public static method inside a public class

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