About Android integrated development environment-Introduction of jar package errors

 

I recently went to the android official website and found an integrated development environment. It feels good to download and use it. However, when I use an external jar package, I often report an error. I have solved this problem. Today I have encountered this problem, but I forgot how to solve the problem. This time I wrote down the record for easy reference.

Method: place the jar package in the libs directory, and the ADT is automatically addedAndroid dependencies of class pathBelow, after the jar package is introduced, it will be addedReferenced libraries of class pathNow, in the android integrated development environment, when the jar package under referenced libraries is used, no error is prompted during the encoding process, but XXX. XXX is not found during APK installation.

 

Summary: The jar package to be used must be visible under Android dependencies after the project is introduced. Otherwise, the introduction is invalid.