如何反射获取Android SystemProperties 的字段

1、获取Android系统的 字段属性

private String getSystemProperties(String key){

String values = "";
Class<?> cls = null;    
   
try {
cls = Class.forName("android.os.SystemProperties");
Method mMethod = cls.getMethod("get", String.class);
Object object = cls.newInstance();    
values = (String) mMethod.invoke(object, key);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}   
    

   

return values;
}