Optimize code

New Privilege object, which follows Application lifecycle.
Add Privilege.DPM and Privilege.DAR variable, instead of creating DPM and DAR instance every time.

app/src/main/java/com/bintianqi/owndroid/MyApplication.kt

@@ -0,0 +1,18 @@
+package com.bintianqi.owndroid
+
+import android.app.Application
+import android.os.Build.VERSION
+import org.lsposed.hiddenapibypass.HiddenApiBypass
+
+class MyApplication : Application() {
+    override fun onCreate() {
+        super.onCreate()
+        if (VERSION.SDK_INT >= 28) HiddenApiBypass.setHiddenApiExemptions("")
+        SP = SharedPrefs(applicationContext)
+        Privilege.initialize(applicationContext)
+        Privilege.updateStatus()
+    }
+}
+
+lateinit var SP: SharedPrefs
+    private set