修改非androidx版本，增加maven脚本

demo/build.gradle

 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion "29.0.2"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.3"
 
     defaultConfig {
         applicationId "com.study.skindemo"
         minSdkVersion 18
-        targetSdkVersion 29
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
 
@@ -29,7 +29,7 @@ dependencies {
     implementation fileTree(dir: "libs", include: ["*.jar"])
     implementation "com.android.support:support-v13:28.0.0"
     implementation 'com.google.android.material:material:1.2.1'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.android.support.constraint:constraint-layout:2.0.4'
     implementation project(':skin-lib')
 
     testImplementation 'junit:junit:4.12'

demo/src/main/java/com/study/skindemo/MainActivity.java

 package com.study.skindemo;
 
+import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
 import android.view.View;
 
+import androidx.annotation.RequiresApi;
 
-
-import com.study.libs.SkinManager;
+import com.miya.skin_lib.SkinManager;
 
 import java.io.File;
 
@@ -18,6 +20,7 @@ public class MainActivity extends AppCompatActivity {
         setContentView(R.layout.activity_main);
 
         findViewById(R.id.btnCtl).setOnClickListener(new View.OnClickListener() {
+            @RequiresApi(api = Build.VERSION_CODES.KITKAT)
             @Override
             public void onClick(View v) {
                 SkinManager.getInstance()

demo/src/main/java/com/study/skindemo/OneApplication.java

@@ -2,7 +2,7 @@ package com.study.skindemo;
 
 import android.app.Application;
 
-import com.study.libs.SkinManager;
+import com.miya.skin_lib.SkinManager;
 
 
 public class OneApplication extends Application {

skin-lib/build.gradle

 apply plugin: 'com.android.library'
+apply plugin: "maven-publish"
+apply plugin: 'maven' //发布到maven 库中的插件
 
 def supportLibVersion = "28.0.0"
 android {
@@ -26,6 +28,34 @@ android {
 dependencies {
     implementation fileTree(dir: "libs", include: ["*.jar"])
     implementation "com.android.support:support-v13:${supportLibVersion}"
-    testImplementation 'junit:junit:4.12'
+}
+
+//设置动态属性
+ext {
+    //发布到仓库用户名
+    publishUserName = "face-dev"
+    //发布到仓库地址
+    publishUserPassword = "Face-dev@2019"
+    //仓库地址
+    publishURL = "https://nexus.infra.miyatech.com/repository/shualianzhifu/"
+
+    publishVersion = '1.0'
+    //skin-lib-compat表示兼容之前版本，skin-lib是androidx版本的
+    publishArtifactId = "skin-lib-compat"
+    publishGroupId = 'com.miya.iot'
+}
 
+uploadArchives {
+    repositories.mavenDeployer {
+        repository(url: publishURL) {//RELEASE
+            authentication(userName: publishUserName, password: publishUserPassword)
+        }
+        pom.project {
+            version publishVersion
+            artifactId publishArtifactId
+            groupId publishGroupId
+            packaging 'aar'
+            description 'skin_lib'
+        }
+    }
 }
\ No newline at end of file

skin-lib/src/main/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.study.libs">
+    package="com.miya.skin_lib">
+
 </manifest>
\ No newline at end of file

skin-lib/src/main/java/com/study/libs/ActivityLifeCycleCallback.java → skin-lib/src/main/java/com/miya/skin_lib/ActivityLifeCycleCallback.java

-package com.study.libs;
+package com.miya.skin_lib;
 
 import android.app.Activity;
 import android.app.Application;
@@ -7,7 +7,7 @@ import android.support.annotation.NonNull;
 import android.support.v4.view.LayoutInflaterCompat;
 import android.view.LayoutInflater;
 
-import com.study.libs.utils.SkinThemeUtils;
+import com.miya.skin_lib.utils.SkinThemeUtils;
 
 import java.lang.reflect.Field;
 import java.util.HashMap;

skin-lib/src/main/java/com/study/libs/SkinAttribute.java → skin-lib/src/main/java/com/miya/skin_lib/SkinAttribute.java

-package com.study.libs;
+package com.miya.skin_lib;
 
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
@@ -8,8 +8,7 @@ import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
 
-import com.study.libs.utils.SkinResources;
-import com.study.libs.utils.SkinThemeUtils;
+import com.miya.skin_lib.utils.SkinThemeUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -110,7 +109,7 @@ public class SkinAttribute {
                 Drawable left = null, top = null, right = null, bottom = null;
                 switch (skinPair.attributeName) {
                     case "background":
-                        Object background = SkinResources.getInstance().getBackground(skinPair
+                        Object background = SkinThemeUtils.SkinResources.getInstance().getBackground(skinPair
                                 .resId);
                         //背景可能是 @color 也可能是 @drawable
                         if (background instanceof Integer) {
@@ -120,7 +119,7 @@ public class SkinAttribute {
                         }
                         break;
                     case "src":
-                        background = SkinResources.getInstance().getBackground(skinPair.resId);
+                        background = SkinThemeUtils.SkinResources.getInstance().getBackground(skinPair.resId);
                         if (background instanceof Integer) {
                             ((ImageView) view).setImageDrawable(new ColorDrawable((Integer)
                                     background));
@@ -129,20 +128,20 @@ public class SkinAttribute {
                         }
                         break;
                     case "textColor":
-                        ((TextView) view).setTextColor(SkinResources.getInstance().getColorStateList
+                        ((TextView) view).setTextColor(SkinThemeUtils.SkinResources.getInstance().getColorStateList
                                 (skinPair.resId));
                         break;
                     case "drawableLeft":
-                        left = SkinResources.getInstance().getDrawable(skinPair.resId);
+                        left = SkinThemeUtils.SkinResources.getInstance().getDrawable(skinPair.resId);
                         break;
                     case "drawableTop":
-                        top = SkinResources.getInstance().getDrawable(skinPair.resId);
+                        top = SkinThemeUtils.SkinResources.getInstance().getDrawable(skinPair.resId);
                         break;
                     case "drawableRight":
-                        right = SkinResources.getInstance().getDrawable(skinPair.resId);
+                        right = SkinThemeUtils.SkinResources.getInstance().getDrawable(skinPair.resId);
                         break;
                     case "drawableBottom":
-                        bottom = SkinResources.getInstance().getDrawable(skinPair.resId);
+                        bottom = SkinThemeUtils.SkinResources.getInstance().getDrawable(skinPair.resId);
                         break;
                     default:
                         break;

skin-lib/src/main/java/com/study/libs/SkinLayoutInflaterFactory.java → skin-lib/src/main/java/com/miya/skin_lib/SkinLayoutInflaterFactory.java

-package com.study.libs;
+package com.miya.skin_lib;
 
 import android.app.Activity;
 import android.content.Context;
@@ -10,7 +10,7 @@ import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 
-import com.study.libs.utils.SkinThemeUtils;
+import com.miya.skin_lib.utils.SkinThemeUtils;
 
 import java.lang.reflect.Constructor;
 import java.util.HashMap;

skin-lib/src/main/java/com/study/libs/SkinManager.java → skin-lib/src/main/java/com/miya/skin_lib/SkinManager.java

-package com.study.libs;
+package com.miya.skin_lib;
 
 import android.app.Application;
 import android.content.pm.PackageInfo;
@@ -9,7 +9,7 @@ import android.os.Build;
 import android.support.annotation.RequiresApi;
 import android.text.TextUtils;
 
-import com.study.libs.utils.SkinResources;
+import com.miya.skin_lib.utils.SkinThemeUtils;
 
 import java.io.File;
 import java.lang.reflect.Method;
@@ -29,7 +29,7 @@ public class SkinManager extends Observable {
     private SkinManager(Application application) {
         this.application = application;
         SkinPreference.init(application.getApplicationContext());
-        SkinResources.init(application);
+        SkinThemeUtils.SkinResources.init(application);
         application.registerActivityLifecycleCallbacks(new ActivityLifeCycleCallback(this));
         loadSkin(SkinPreference.getInstance().getSkin());
     }
@@ -60,7 +60,7 @@ public class SkinManager extends Observable {
     public void loadSkin(String skinPath) {
         if (TextUtils.isEmpty(skinPath) && !new File(skinPath).exists()) {//如果为空或者不存在该文件，则不用管
             SkinPreference.getInstance().reset();
-            SkinResources.getInstance().reset();
+            SkinThemeUtils.SkinResources.getInstance().reset();
         } else {
             try {
                 Resources appResource = application.getResources();
@@ -71,7 +71,7 @@ public class SkinManager extends Observable {
                 Resources skinResources = new Resources(assetManager, appResource.getDisplayMetrics(), appResource.getConfiguration());
                 PackageManager packageManager = application.getPackageManager();
                 PackageInfo info = packageManager.getPackageArchiveInfo(skinPath, PackageManager.GET_ACTIVITIES);
-                SkinResources.getInstance().applySkin(skinResources, info.packageName);
+                SkinThemeUtils.SkinResources.getInstance().applySkin(skinResources, info.packageName);
                 SkinPreference.getInstance().setSkin(skinPath);
 
             } catch (Exception e) {
@@ -87,7 +87,7 @@ public class SkinManager extends Observable {
      */
     public void reset() {
         SkinPreference.getInstance().reset();
-        SkinResources.getInstance().reset();
+        SkinThemeUtils.SkinResources.getInstance().reset();
         setChanged();
         notifyObservers();
     }

skin-lib/src/main/java/com/study/libs/SkinPreference.java → skin-lib/src/main/java/com/miya/skin_lib/SkinPreference.java

-package com.study.libs;
+package com.miya.skin_lib;
 
 import android.content.Context;
 import android.content.SharedPreferences;

skin-lib/src/main/java/com/study/libs/SkinViewSupport.java → skin-lib/src/main/java/com/miya/skin_lib/SkinViewSupport.java

-package com.study.libs;
+package com.miya.skin_lib;
 
 public interface SkinViewSupport {
 

skin-lib/src/main/java/com/study/libs/utils/SkinResources.java → skin-lib/src/main/java/com/miya/skin_lib/utils/SkinResources.java

-package com.study.libs.utils;
+package com.miya.skin_lib.utils;
 
 import android.content.Context;
 import android.content.res.ColorStateList;
@@ -10,7 +10,6 @@ import android.text.TextUtils;
 
 public class SkinResources {
 
-
     //皮肤包的包名
     private String skinPkgName;
     //是否使用默认的皮肤，用原始的内容

skin-lib/src/main/java/com/study/libs/utils/SkinThemeUtils.java → skin-lib/src/main/java/com/miya/skin_lib/utils/SkinThemeUtils.java

-package com.study.libs.utils;
+package com.miya.skin_lib.utils;
 
 import android.app.Activity;
 import android.content.Context;
+import android.content.res.ColorStateList;
+import android.content.res.Resources;
 import android.content.res.TypedArray;
+import android.graphics.drawable.Drawable;
 import android.os.Build;
+import android.support.v4.content.res.ResourcesCompat;
+import android.text.TextUtils;
+
 
 /**
  * 修改主题信息
@@ -70,4 +76,119 @@ public class SkinThemeUtils {
         }
     }
 
+    public static class SkinResources {
+
+
+        //皮肤包的包名
+        private String skinPkgName;
+        //是否使用默认的皮肤，用原始的内容
+        private boolean isDefaultSkin = true;
+
+        //app原始的resource
+        private Resources appResources;
+        //皮肤包的resources
+        private Resources skinResources;
+
+        private static volatile SkinResources instance;
+
+        private SkinResources(Context context) {
+            appResources = context.getResources();
+        }
+
+        public static void init(Context context) {
+            if (null == instance) {
+                synchronized (SkinResources.class) {
+                    if (null == instance) {
+                        instance = new SkinResources(context);
+                    }
+                }
+            }
+        }
+
+        public static SkinResources getInstance() {
+            return instance;
+        }
+
+        public void reset() {
+            skinResources = null;
+            skinPkgName = null;
+            isDefaultSkin = true;
+        }
+
+        public void applySkin(Resources resources, String pkgName) {
+            skinResources = resources;
+            skinPkgName = pkgName;
+            //是否使用默认皮肤
+            isDefaultSkin = TextUtils.isEmpty(pkgName) || resources == null;
+        }
+
+        /**
+         * 1. 通过原始app中的resId获取到自己的名字（R.color.icon_up，获取到的就是icon_up）和类型
+         * 2. 根据名字和类型获取皮肤包中的ID
+         */
+        public int getIdentifier(int resId) {
+            if (isDefaultSkin) {
+                return resId;
+            }
+            //获取名称，如：icon_up
+            String resName = appResources.getResourceEntryName(resId);
+            //获取类型，如：drawable
+            String resType = appResources.getResourceTypeName(resId);
+            int skinId = skinResources.getIdentifier(resName, resType, skinPkgName);
+            return skinId;
+        }
+
+        /**
+         * 输入主app的id，获取皮肤包中的
+         */
+        public int getColor(int resId) {
+            if (isDefaultSkin) {
+                return appResources.getColor(resId);
+            }
+            int skinId = getIdentifier(resId);
+            if (skinId == 0) {
+                return appResources.getColor(resId);
+            }
+            return skinResources.getColor(skinId);
+        }
+
+        public Drawable getDrawable(int resId) {
+            if (isDefaultSkin) {
+                return ResourcesCompat.getDrawable(appResources, resId, null);
+            }
+            int skinId = getIdentifier(resId);
+            if (skinId == 0) {
+                return ResourcesCompat.getDrawable(appResources, resId, null);
+            }
+            return ResourcesCompat.getDrawable(skinResources, skinId, null);
+        }
+
+        public ColorStateList getColorStateList(int resId) {
+            if (isDefaultSkin) {
+                return ResourcesCompat.getColorStateList(appResources, resId, null);
+            }
+            int skinId = getIdentifier(resId);
+            if (skinId == 0) {
+                return ResourcesCompat.getColorStateList(appResources, resId, null);
+            }
+            return ResourcesCompat.getColorStateList(skinResources, skinId, null);
+        }
+
+
+        /**
+         * 可能是Color 也可能是drawable
+         *
+         * @return
+         */
+        public Object getBackground(int resId) {
+            String resourceTypeName = appResources.getResourceTypeName(resId);
+            if ("color".equals(resourceTypeName)) {
+                return getColor(resId);
+            } else {
+                // drawable
+                return getDrawable(resId);
+            }
+        }
+
+    }
 }

skin-lib/src/test/java/com/study/libs/ExampleUnitTest.kt

-package com.study.libs
+package com.miya.skin_lib
 
 import org.junit.Test