Why can't one access getFrameTime() in Choreographer Class?

Question

package android.view;
public final class Choreographer {
...
    public long getFrameTime() {
        return getFrameTimeNanos() / TimeUtils.NANOS_PER_MS;
    }
...
}

I can't see the reason why I get the error message Error:(195, 50) error: cannot find symbol method getFrameTime() with Choreographer.getInstance().getFrameTime()

build.gradle

android {
compileSdkVersion 23
buildToolsVersion "23.0.2"

defaultConfig {
    minSdkVersion 21
    targetSdkVersion 23

Answer 1

Because the method is annotated with @Hide. Access through reflection is still possible though.