通过反射

Question

public class FingerprintManager {

     * @hide
     */
   // this class is hidden 
    public static abstract class EnrollmentCallback {

        public void onEnrollmentError(int errMsgId, CharSequence errString) { }


        public void onEnrollmentHelp(int helpMsgId, CharSequence helpString) { }


        public void onEnrollmentProgress(int remaining) { }
    };
}

隐藏了EnrollmentCallback类。有没有办法通过反射来实例化EnrollmentCallback类，这相当于：

EnrollmentCallback callbackObject = new EnrollmentCallback ()
{
        public void onEnrollmentError(int errMsgId, CharSequence errString) { }


        public void onEnrollmentHelp(int helpMsgId, CharSequence helpString) { }


        public void onEnrollmentProgress(int remaining) { }
};

Answer 1

没有。有可能使用字节码操作库（如ASM）来做到这一点，但是如果不扩展它并实现任何缺失（{{abstract类，它就无法实例化{{1}}类。 1}}）方法。你不能用Java反射做到这一点。