Question

https://github.com/SimonVT/android-numberpicker

I am trying to use this library.

But I can’t successfully use the Sample

1. Import sample
2. copy lib files (except manifest, build)

But the Sample still has an error at NumberPicker.java

I mean All(ever) R. giving an error, something like R.id.np_decrement, R.attr.numberPickerStyle, R.integer.np_config_longAnimTime…

Answer 1

The resources object (R.java) isn’t being generated because of an error. Your targetSdkVersion should be set to at least 15 in your manifest, and you should also have theme.xml from the library’s res/values folder copied to the same location in your own project.