final some less class for not extend and better performance

Author: fengjian

lesscode-core/src/main/java/com/jayfeng/lesscode/core/$.java

@@ -2,7 +2,7 @@
 
 import android.content.Context;
 
-public class $ {
+public final class $ {
     /**
      * 单例
      */

lesscode-core/src/main/java/com/jayfeng/lesscode/core/ActivityLess.java

@@ -4,7 +4,7 @@
 import android.view.Window;
 import android.view.WindowManager;
 
-public class ActivityLess {
+public final class ActivityLess {
 
     /**
      * 第一次和第二次的退出间隔时间基准

lesscode-core/src/main/java/com/jayfeng/lesscode/core/AdapterLess.java

@@ -18,7 +18,7 @@
  * 适配器简化相关的工具类
  * 常用于:ListView,ViewPager,RecyclerView
  */
-public class AdapterLess {
+public final class AdapterLess {
 
     /**
      * 创建一个RecyclerView.Adapter

lesscode-core/src/main/java/com/jayfeng/lesscode/core/AppLess.java

@@ -9,7 +9,7 @@
 
 import java.util.List;
 
-public class AppLess {
+public final class AppLess {
 
     /**
      * 获取app的版本数versionCode,比如38

lesscode-core/src/main/java/com/jayfeng/lesscode/core/BitmapLess.java

@@ -1,4 +1,4 @@
 package com.jayfeng.lesscode.core;
 
-public class BitmapLess {
+public final class BitmapLess {
 }

lesscode-core/src/main/java/com/jayfeng/lesscode/core/CacheLess.java

@@ -7,7 +7,7 @@
  * 缓存相关的工具类
  * 常用于缓存网络请求返回的json保存到本地的缓存策略
  */
-public class CacheLess {
+public final class CacheLess {
 
     /**
      * 根据key查找缓存的内容

lesscode-core/src/main/java/com/jayfeng/lesscode/core/DeviceLess.java

@@ -11,7 +11,7 @@
 /**
  * 设备相关的工具类
  */
-public class DeviceLess {
+public final class DeviceLess {
 
     /**
      * 获取设备的mac地址

lesscode-core/src/main/java/com/jayfeng/lesscode/core/DisplayLess.java

@@ -14,7 +14,7 @@
 /**
  * 屏幕显示相关的工具类
  */
-public class DisplayLess {
+public final class DisplayLess {
 
     /**
      * 屏幕宽度

lesscode-core/src/main/java/com/jayfeng/lesscode/core/DrawableLess.java

@@ -5,7 +5,7 @@
 import android.graphics.drawable.Drawable;
 import android.support.v4.graphics.drawable.DrawableCompat;
 
-public class DrawableLess {
+public final class DrawableLess {
 
 
     /**

lesscode-core/src/main/java/com/jayfeng/lesscode/core/EncodeLess.java

@@ -7,7 +7,7 @@
 /**
  * 加解密相关的工具类
  */
-public class EncodeLess {
+public final class EncodeLess {
 
     /**
      * 通用MD5加密