Android App层 单独使用SystemProperties

 单独拷贝成 SystemProperties.java 即可享用。

import java.lang.reflect.Method;public class SystemProperties {public static String get(String key, String defaultValue) {String value = defaultValue;try {Class c = Class.forName("android.os.SystemProperties");Method get = c.getMethod("get", String.class, String.class);value = (String) (get.invoke(c, key, "unknown"));} catch (Exception e) {e.printStackTrace();} finally {return value;}}public static void set(String key, String value) {try {Class c = Class.forName("android.os.SystemProperties");Method set = c.getMethod("set", String.class, String.class);set.invoke(c, key, value);} catch (Exception e) {e.printStackTrace();}}
}