A tool that generates TypeScript declaration files (.d.ts) from Jars

Because there are certain incompatibilities between Java and TypeScript, definitions MAY NOT always be completely accurate. They will however compile and provide auto complete feature inside a modern text editor supporting typings.

• Interfaces are represented by classes, this will allow you to extend them by using the new syntax, as well as show you all its members that need to be implemented
• Classes from the package java.util.function don't have their typings generated, as function is a reserved keyword in TypeScript and JavaScript
• Classes returning values of Type in the package java.util.function will return any instead
• Classes using methods with parameters of Type in the package java.util.function will take any instead
• Classes implementing java.util.Iterator, android.animation.TypeEvaluator, java.lang.Comparable do not implement those interfaces in the generated definitions for compatibility-related issues

cd dts-generator
gradlew jar
java -jar build\libs\dts-generator.jar -input %ANDROID_HOME%\platforms\android-<Platform Level (21/22/23/24)>\android.jar

cd dts-generator
gradlew jar
java -jar build\libs\dts-generator.jar -input <Path to your Jar>

cd dts-generator
gradlew jar
java -jar build\libs\dts-generator.jar -input <jar1> <jar2> <jar3>

Open the .aar archive
Extract the classes.jar and any dependencies it may have inside libs/
Rename classes.jar if necessary

java - jar build\libs\dts-generator.jar -input classes.jar dependency-of-classes-jar.jar