What language should I learn to develop an android app?

Answer 1

java is best along with sdk

Answer 2

Java & Java's swing library. U also need to know your way around the Android SDK(Android Studio)

Answer 3

The official language for Android development is Java. Large parts of Android are written in Java and its APIs are designed to be called primarily from Java. That said, it is possible to develop C and C++ apps using the Android Native Development Kit (NDK), however it isn't something that Google promotes.

Answer 4

Xml and java, mostly

Answer 5

java