问题
I'm using the new Android Marshmallow SDK and the method FloatMath.sqrt() is gone. What should I use now?
回答1:
The documentations say this:
Historically these methods were faster than the equivalent double-based java.lang.Math methods. On versions of Android with a JIT they became slower and have since been re-implemented to wrap calls to java.lang.Math. java.lang.Math should be used in preference.
All methods were removed from the public API in version 23.
@deprecated Use java.lang.Math instead.
This means the solution is to use the Math class:
(float)Math.sqrt(...)
来源：https://stackoverflow.com/questions/32065160/method-floatmath-sqrt-not-found