在做Android加固的时候经常用到反射，然后我就从网上复制了一个反射工具类
总共包含下面6个方法
调用类的静态方法
调用类的实例方法
获取类的实例成员变量
获取类的静态成员变量
设置类的实例成员变量的值
设置类的静态成员变量的值
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
// Android的类反射调用的工具
public class RefInvoke {
// 通过类反射调用调用类的静态方法
public static Object invokeStaticMethod(String class_name, String method_name, Class[] pareTyple, Object[] pareVaules) {
try {
Class obj_class = Class.forName(class_name);
Method method = obj_class.getMethod(method_name, pareTyple);
return method.invoke(null, pareVaules);
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}
// 通过类反射调用调用类的实例方法
public static Object invokeMethod(String class_name, String method_name, Object obj ,Class[] pareTyple, Object[] pareVaules){
try {
Class obj_class = Class.forName(class_name);
Method method = obj_class.getMethod(method_name, pareTyple);
return method.invoke(obj, pareVaules);
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}
// 通过类反射调用获取类的实例成员变量
public static Object getFieldOjbect(String class_name, Object obj, String filedName){
try {
Class obj_class = Class.forName(class_name);
Field field = obj_class.getDeclaredField(filedName);
field.setAccessible(true);
return field.get(obj);
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}
// 通过类反射调用获取类的静态成员变量
public static Object getStaticFieldOjbect(String class_name, String filedName){
try {
Class<?> obj_class = Class.forName(class_name);
Field field = obj_class.getDeclaredField(filedName);
field.setAccessible(true);
return field.get(null);
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}
// 通过类反射调用设置类的实例成员变量的值
public static void setFieldOjbect(String classname, String filedName, Object obj, Object filedVaule){
try {
Class<?> obj_class = Class.forName(classname);
Field field = obj_class.getDeclaredField(filedName);
field.setAccessible(true);
field.set(obj, filedVaule);
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
// 通过类反射调用设置类的静态成员变量的值
public static void setStaticOjbect(String class_name, String filedName, Object filedVaule) {
try {
Class<?> obj_class = Class.forName(class_name);
Field field = obj_class.getDeclaredField(filedName);
field.setAccessible(true);
field.set(null, filedVaule);
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
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