Update SystemProperties.kt

app/src/main/java/com/lt2333/simplicitytools/utils/SystemProperties.kt

@@ -0,0 +1,29 @@
+package com.lt2333.simplicitytools.utils
+
+import android.annotation.SuppressLint
+import android.content.Context
+
+object SystemProperties {
+    @SuppressLint("PrivateApi")
+    operator fun get(context: Context, key: String?): String {
+        var ret = ""
+        try {
+            val cl = context.classLoader
+            val systemProperties = cl.loadClass("android.os.SystemProperties")
+            //参数类型
+            val paramTypes: Array<Class<*>?> = arrayOfNulls(1)
+            paramTypes[0] = String::class.java
+            val get = systemProperties.getMethod("get", *paramTypes)
+            //参数
+            val params = arrayOfNulls<Any>(1)
+            params[0] = key
+            ret = get.invoke(systemProperties, *params) as String
+        } catch (iAE: IllegalArgumentException) {
+            throw iAE
+        } catch (e: Exception) {
+            ret = ""
+        }
+        return ret
+    }
+
+}