我无法使用Android Studio中导入的库中另一个类的方法

Question

I used

dependencies {
    compile 'com.macroyau:thingspeakandroid:0.2.0'
}

to download the external libraries I need. I created an instance of one of the classes of the lib and upon calling the methods, it seems I can only call the interfaces instead of the actual methods as you can see here!

It's the first time I am using Android Studio, is it the right way to import external libraries?

Answer 1

Properly add the library by adding new module in android studio File->New->New Module->Android Library Choose the path where you downloaded the library.

Then add the dependency and rebuild it. Check the errors if any