Use javah to generate a. h file and solve the problem that the android. app and Activity cannot be accessed.

My classmates run javah com.cn. ndk22.Ndk22. Activity in the ndk22/bin/classes project. The. h file appears.

 

 

 

I am in the bin/classes directory and cannot access it,

: Error: unable to access android. app. Activity

Android. app. Activity not found

As shown in

 

 

 

 

 

 

So I went to the ndk/src directory in cmd and ran javah com. heima. ndk. ndkActivity. If it was successful, it would be successful... I don't know why.

 

 

 

 

 

 

Conclusion: when using javah to generate a. h file,

If javah com. heima. ndk. ndkActivity cannot be accessed in D: \ Android \ project \ ndk \ bin \ classes and the class file cannot be found

 

Run javah com. heima. ndk. ndkActivity in D: \ Android \ project \ ndk \ src.

I don't know why. I can use it anyway...

 

Reproduced in: http://201202212729.iteye.com/blog/1625779