diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index 398f8f7d..bf0552a3 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/app/build.gradle b/app/build.gradle
index 9ae3d14d..ea809434 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,8 +8,8 @@ android {
         applicationId "org.autojs.autojs"
         minSdkVersion 17
         targetSdkVersion 23
-        versionCode 403
-        versionName "4.0.2 Alpha"
+        versionCode 406
+        versionName "4.0.2 Alpha2"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
         ndk {
diff --git a/app/src/main/java/org/autojs/autojs/ui/floating/FloatyWindowManger.java b/app/src/main/java/org/autojs/autojs/ui/floating/FloatyWindowManger.java
index f2be6c8c..54dec712 100644
--- a/app/src/main/java/org/autojs/autojs/ui/floating/FloatyWindowManger.java
+++ b/app/src/main/java/org/autojs/autojs/ui/floating/FloatyWindowManger.java
@@ -54,7 +54,7 @@ public class FloatyWindowManger {
     }
 
     public static boolean showCircularMenu() {
-        if (!SettingsCompat.canDrawOverlays(GlobalAppContext.get())) {
+        if (!FloatingPermission.canDrawOverlays(GlobalAppContext.get())) {
             Toast.makeText(GlobalAppContext.get(), R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
             manageDrawOverlays(GlobalAppContext.get());
             return false;
diff --git a/autojs/src/main/assets/.vscode/launch.json b/autojs/src/main/assets/.vscode/launch.json
deleted file mode 100644
index 897fbc7a..00000000
--- a/autojs/src/main/assets/.vscode/launch.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-    // 使用 IntelliSense 了解相关属性。 
-    // 悬停以查看现有属性的描述。
-    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "type": "node",
-            "request": "launch",
-            "name": "启动程序",
-            "program": "${file}"
-        }
-    ]
-}
\ No newline at end of file
diff --git a/autojs/src/main/assets/init.js b/autojs/src/main/assets/init.js
index 1fa0fe37..3734cf50 100644
--- a/autojs/src/main/assets/init.js
+++ b/autojs/src/main/assets/init.js
@@ -72,21 +72,12 @@ runtime.init();
     Image = com.stardust.autojs.core.image.ImageWrapper;
 
     //重定向require以便支持相对路径
+
     (function(){
-        var __require__ = require;
-        var builtInModules = ["lodash.js"];
-        global.require = function(path){
-            if(!path.endsWith(".js")){
-                path = path + ".js";
-            }
-            if(builtInModules.indexOf(path) >= 0 && !files.exists(path)){
-                return __require__(path);
-            }
-            if(path.startsWith("http://") || path.startsWith("https://")){
-               return __require__(path);
-            }
-            return __require__(files.path(path));
-        };
+        var loadAssets = function(path){
+            eval(files.readAssets(path));
+        }
+        loadAssets("jvm-npm.js");
     })();
 
 
diff --git a/autojs/src/main/assets/jvm-npm.js b/autojs/src/main/assets/jvm-npm.js
new file mode 100644
index 00000000..25de71e6
--- /dev/null
+++ b/autojs/src/main/assets/jvm-npm.js
@@ -0,0 +1,294 @@
+/**
+ *  Copyright 2014-2016 Red Hat, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License")
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+// Since we intend to use the Function constructor.
+/* jshint evil: true */
+
+module = (typeof module === 'undefined') ? {} : module;
+
+(function () {
+  var builtInModules = ["lodash.js"];
+
+  var System = java.lang.System;
+  var Scanner = java.util.Scanner;
+  var File = java.io.File;
+
+  NativeRequire = (typeof NativeRequire === 'undefined') ? {} : NativeRequire;
+  if (typeof require === 'function' && !NativeRequire.require) {
+    NativeRequire.require = require;
+  }
+
+  function Module (id, parent, core) {
+    this.id = id;
+    this.core = core;
+    this.parent = parent;
+    this.children = [];
+    this.filename = id;
+    this.loaded = false;
+
+    Object.defineProperty(this, 'exports', {
+      get: function () {
+        return this._exports;
+      }.bind(this),
+      set: function (val) {
+        Require.cache[this.filename] = val;
+        this._exports = val;
+      }.bind(this)
+    });
+    this.exports = {};
+
+    if (parent && parent.children) parent.children.push(this);
+
+    this.require = function (id) {
+      return Require(id, this);
+    }.bind(this);
+  }
+
+  Module._load = function _load (file, parent, core, main) {
+    var module = new Module(file, parent, core);
+    var body = readFile(module.filename, module.core);
+    var dir = new File(module.filename).getParent();
+    var func = new Function('exports', 'module', 'require', '__filename', '__dirname', body);
+    func.apply(module,
+      [module.exports, module, module.require, module.filename, dir]);
+    module.loaded = true;
+    module.main = main;
+    return module.exports;
+  };
+
+  Module.runMain = function runMain (main) {
+    var file = Require.resolve(main);
+    Module._load(file, undefined, false, true);
+  };
+
+  function Require (id, parent) {
+    var normalizePath = normalizeName(id);
+    if(builtInModules.indexOf(normalizePath) >= 0 && !files.exists(normalizePath)){
+        return NativeRequire.require(normalizePath);
+    }
+    if(id.startsWith("http://") || id.startsWith("https://")){
+        return NativeRequire.require(id);
+    }
+
+    var core;
+    var native_;
+    var file = Require.resolve(id, parent);
+
+    if (!file) {
+      if (typeof NativeRequire.require === 'function') {
+        if (Require.debug) {
+          System.out.println(['Cannot resolve', id, 'defaulting to native'].join(' '));
+        }
+        native_ = NativeRequire.require(id);
+        if (native_) return native_;
+      }
+      System.err.println('Cannot find module ' + id);
+      throw new ModuleError('Cannot find module ' + id, 'MODULE_NOT_FOUND');
+    }
+
+    if (file.core) {
+      file = file.path;
+      core = true;
+    }
+    try {
+      if (Require.cache[file]) {
+        return Require.cache[file];
+      } else if (file.endsWith('.js')) {
+        return Module._load(file, parent, core);
+      } else if (file.endsWith('.json')) {
+        return loadJSON(file);
+      }
+    } catch (ex) {
+      if (ex instanceof java.lang.Exception) {
+        throw new ModuleError('Cannot load module ' + id, 'LOAD_ERROR', ex);
+      } else {
+        System.out.println('Cannot load module ' + id + ' LOAD_ERROR');
+        throw ex;
+      }
+    }
+  }
+
+  Require.resolve = function (id, parent) {
+    var roots = findRoots(parent);
+    for (var i = 0; i < roots.length; ++i) {
+      var root = roots[i];
+      var result = resolveCoreModule(id, root) ||
+      resolveAsFile(id, root, '.js') ||
+      resolveAsFile(id, root, '.json') ||
+      resolveAsDirectory(id, root) ||
+      resolveAsNodeModule(id, root);
+      if (result) {
+        return result;
+      }
+    }
+    return false;
+  };
+
+  Require.root = files.cwd();//System.getProperty('user.dir');
+  Require.NODE_PATH = undefined;
+
+  function findRoots (parent) {
+    var r = [];
+    r.push(findRoot(parent));
+    return r.concat(Require.paths());
+  }
+
+  function parsePaths (paths) {
+    if (!paths) {
+      return [];
+    }
+    if (paths === '') {
+      return [];
+    }
+    var osName = java.lang.System.getProperty('os.name').toLowerCase();
+    var separator;
+
+    if (osName.indexOf('win') >= 0) {
+      separator = ';';
+    } else {
+      separator = ':';
+    }
+
+    return paths.split(separator);
+  }
+
+  Require.paths = function () {
+    var r = [];
+    r.push(java.lang.System.getProperty('user.home') + '/.node_modules');
+    r.push(java.lang.System.getProperty('user.home') + '/.node_libraries');
+
+    if (Require.NODE_PATH) {
+      r = r.concat(parsePaths(Require.NODE_PATH));
+    } else {
+      var NODE_PATH = java.lang.System.getenv().NODE_PATH;
+      if (NODE_PATH) {
+        r = r.concat(parsePaths(NODE_PATH));
+      }
+    }
+    // r.push( $PREFIX + "/node/library" )
+    return r;
+  };
+
+  function findRoot (parent) {
+    if (!parent || !parent.id) { return Require.root; }
+    var pathParts = parent.id.split(/[\/|\\,]+/g);
+    pathParts.pop();
+    return pathParts.join('/');
+  }
+
+  Require.debug = true;
+  Require.cache = {};
+  Require.extensions = {};
+  require = Require;
+
+  module.exports = Module;
+
+  function loadJSON (file) {
+    var json = JSON.parse(readFile(file));
+    Require.cache[file] = json;
+    return json;
+  }
+
+  function resolveAsNodeModule (id, root) {
+    var base = [root, 'node_modules'].join('/');
+    return resolveAsFile(id, base) ||
+      resolveAsDirectory(id, base) ||
+      (root ? resolveAsNodeModule(id, new File(root).getParent()) : false);
+  }
+
+  function resolveAsDirectory (id, root) {
+    var base = [root, id].join('/');
+    var file = new File([base, 'package.json'].join('/'));
+    if (file.exists()) {
+      try {
+        var body = readFile(file.getCanonicalPath());
+        var package_ = JSON.parse(body);
+        if (package_.main) {
+          return (resolveAsFile(package_.main, base) ||
+            resolveAsDirectory(package_.main, base));
+        }
+        // if no package.main exists, look for index.js
+        return resolveAsFile('index.js', base);
+      } catch (ex) {
+        throw new ModuleError('Cannot load JSON file', 'PARSE_ERROR', ex);
+      }
+    }
+    return resolveAsFile('index.js', base);
+  }
+
+  function resolveAsFile (id, root, ext) {
+    var file;
+    if (id.length > 0 && id[0] === '/') {
+      file = new File(normalizeName(id, ext));
+      if (!file.exists()) {
+        return resolveAsDirectory(id);
+      }
+    } else {
+      file = new File([root, normalizeName(id, ext)].join('/'));
+    }
+    if (file.exists()) {
+      return file.getCanonicalPath();
+    }
+  }
+
+  function resolveCoreModule (id, root) {
+    var name = normalizeName(id);
+    var classloader = java.lang.Thread.currentThread().getContextClassLoader();
+    if (classloader.getResource(name)) {
+      return { path: name, core: true };
+    }
+  }
+
+  function normalizeName (fileName, ext) {
+    var extension = ext || '.js';
+    if (fileName.endsWith(extension)) {
+      return fileName;
+    }
+    return fileName + extension;
+  }
+
+  function readFile (filename, core) {
+    var input;
+    try {
+      if (core) {
+        var classloader = java.lang.Thread.currentThread().getContextClassLoader();
+        input = classloader.getResourceAsStream(filename);
+      } else {
+        input = new File(filename);
+      }
+      // TODO: I think this is not very efficient
+      return new Scanner(input).useDelimiter('\\A').next();
+    } catch (e) {
+      throw new ModuleError('Cannot read file [' + input + ']: ', 'IO_ERROR', e);
+    }
+  }
+
+  function ModuleError (message, code, cause) {
+    this.code = code || 'UNDEFINED';
+    this.message = message || 'Error loading module';
+    this.cause = cause;
+  }
+
+  // Helper function until ECMAScript 6 is complete
+  if (typeof String.prototype.endsWith !== 'function') {
+    String.prototype.endsWith = function (suffix) {
+      if (!suffix) return false;
+      return this.indexOf(suffix, this.length - suffix.length) !== -1;
+    };
+  }
+
+  ModuleError.prototype = new Error();
+  ModuleError.prototype.constructor = ModuleError;
+}());
\ No newline at end of file
diff --git a/autojs/src/main/java/com/stardust/autojs/core/console/StardustConsole.java b/autojs/src/main/java/com/stardust/autojs/core/console/StardustConsole.java
index 28c1512c..0ed26141 100644
--- a/autojs/src/main/java/com/stardust/autojs/core/console/StardustConsole.java
+++ b/autojs/src/main/java/com/stardust/autojs/core/console/StardustConsole.java
@@ -10,6 +10,7 @@ import com.stardust.autojs.annotation.ScriptInterface;
 import com.stardust.autojs.runtime.api.AbstractConsole;
 import com.stardust.autojs.runtime.api.Console;
 import com.stardust.autojs.runtime.exception.ScriptInterruptedException;
+import com.stardust.autojs.util.FloatingPermission;
 import com.stardust.concurrent.ConcurrentArrayList;
 import com.stardust.enhancedfloaty.FloatyService;
 import com.stardust.enhancedfloaty.ResizableExpandableFloatyWindow;
@@ -151,8 +152,8 @@ public class StardustConsole extends AbstractConsole {
         if (mShown) {
             return;
         }
-        if (!SettingsCompat.canDrawOverlays(mUiHandler.getContext())) {
-            SettingsCompat.manageDrawOverlays(mUiHandler.getContext());
+        if (!FloatingPermission.canDrawOverlays(mUiHandler.getContext())) {
+            FloatingPermission.manageDrawOverlays(mUiHandler.getContext());
             mUiHandler.toast(R.string.text_no_floating_window_permission);
             return;
         }
diff --git a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/DynamicLayoutInflater.java b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/DynamicLayoutInflater.java
index f43ff511..6d1f1e17 100644
--- a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/DynamicLayoutInflater.java
+++ b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/DynamicLayoutInflater.java
@@ -38,6 +38,7 @@ import com.stardust.autojs.core.ui.inflater.inflaters.TimePickerInflater;
 import com.stardust.autojs.core.ui.inflater.inflaters.ToolbarInflater;
 import com.stardust.autojs.core.ui.inflater.inflaters.ViewGroupInflater;
 import com.stardust.autojs.core.ui.inflater.util.Res;
+import com.stardust.autojs.core.ui.widget.JsSpinner;
 import com.stardust.autojs.core.ui.widget.JsTabLayout;
 import com.stardust.autojs.core.ui.widget.JsToolbar;
 import com.stardust.autojs.core.ui.xml.XmlConverter;
@@ -126,7 +127,7 @@ public class DynamicLayoutInflater {
         registerViewAttrSetter(DatePicker.class.getName(), new DatePickerInflater(mResourceParser));
         registerViewAttrSetter(RadioGroup.class.getName(), new RadioGroupInflater<>(mResourceParser));
         registerViewAttrSetter(ProgressBar.class.getName(), new ProgressBarInflater<>(mResourceParser));
-        registerViewAttrSetter(Spinner.class.getName(), new SpinnerInflater(mResourceParser));
+        registerViewAttrSetter(JsSpinner.class.getName(), new SpinnerInflater(mResourceParser));
         registerViewAttrSetter(TimePicker.class.getName(), new TimePickerInflater(mResourceParser));
         registerViewAttrSetter(AppBarLayout.class.getName(), new AppBarInflater<>(mResourceParser));
         registerViewAttrSetter(JsTabLayout.class.getName(), new TabLayoutInflater<>(mResourceParser));
diff --git a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/SpinnerInflater.java b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/SpinnerInflater.java
index 7c6335ac..8c3a2a4a 100644
--- a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/SpinnerInflater.java
+++ b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/SpinnerInflater.java
@@ -2,17 +2,22 @@ package com.stardust.autojs.core.ui.inflater.inflaters;
 
 import android.content.Context;
 import android.os.Build;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
+import android.util.TypedValue;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.SimpleAdapter;
 import android.widget.Spinner;
 
+import com.stardust.autojs.R;
 import com.stardust.autojs.core.ui.inflater.ResourceParser;
 import com.stardust.autojs.core.ui.inflater.ViewCreator;
+import com.stardust.autojs.core.ui.inflater.util.Colors;
 import com.stardust.autojs.core.ui.inflater.util.Dimensions;
 import com.stardust.autojs.core.ui.inflater.util.Strings;
 import com.stardust.autojs.core.ui.inflater.util.ValueMapper;
+import com.stardust.autojs.core.ui.widget.JsSpinner;
 
 import java.util.List;
 import java.util.Map;
@@ -21,7 +26,7 @@ import java.util.Map;
  * Created by Stardust on 2017/11/29.
  */
 
-public class SpinnerInflater extends BaseViewInflater<Spinner> {
+public class SpinnerInflater extends BaseViewInflater<JsSpinner> {
 
     protected static final ValueMapper<Integer> SPINNER_MODES = new ValueMapper<Integer>("spinnerMode")
             .map("dialog", Spinner.MODE_DIALOG)
@@ -32,38 +37,48 @@ public class SpinnerInflater extends BaseViewInflater<Spinner> {
     }
 
     @Override
-    public boolean setAttr(Spinner view, String attr, String value, ViewGroup parent, Map<String, String> attrs) {
+    public boolean setAttr(JsSpinner view, String attr, String value, ViewGroup parent, Map<String, String> attrs) {
         switch (attr) {
             case "dropDownHorizontalOffset":
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-                    view.setDropDownHorizontalOffset(Dimensions.parseToIntPixel(value, view));
-                }
+                view.setDropDownHorizontalOffset(Dimensions.parseToIntPixel(value, view));
                 break;
             case "dropDownSelector":
                 Exceptions.unsupports(view, attr, value);
                 break;
             case "dropDownVerticalOffset":
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-                    view.setDropDownVerticalOffset(Dimensions.parseToIntPixel(value, view));
-                }
+                view.setDropDownVerticalOffset(Dimensions.parseToIntPixel(value, view));
                 break;
             case "dropDownWidth":
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-                    view.setDropDownWidth(Dimensions.parseToIntPixel(value, view));
-                }
+                view.setDropDownWidth(Dimensions.parseToIntPixel(value, view));
                 break;
             case "popupBackground":
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-                    view.setPopupBackgroundDrawable(getDrawables().parse(view, value));
-                }
+                view.setPopupBackgroundDrawable(getDrawables().parse(view, value));
                 break;
             case "prompt":
                 view.setPrompt(Strings.parse(view, value));
                 break;
             case "entries":
-                view.setAdapter(new ArrayAdapter<>(view.getContext(),
+                view.setAdapter(view.new Adapter(view.getContext(),
                         android.R.layout.simple_spinner_dropdown_item, value.split("[|]")));
                 break;
+            case "textStyle":
+                view.setTextStyle(TextViewInflater.TEXT_STYLES.split(value));
+                break;
+            case "textColor":
+                view.setTextColor(Colors.parse(view.getContext(), value));
+                break;
+            case "textSize":
+                view.setTextSize(Dimensions.parseToPixel(value, view));
+                break;
+            case "entryTextStyle":
+                view.setEntryTextStyle(TextViewInflater.TEXT_STYLES.split(value));
+                break;
+            case "entryTextColor":
+                view.setEntryTextColor(Colors.parse(view.getContext(), value));
+                break;
+            case "entryTextSize":
+                view.setEntryTextSize(Dimensions.parseToPixel(value, view));
+                break;
             default:
                 return super.setAttr(view, attr, value, parent, attrs);
         }
@@ -76,16 +91,11 @@ public class SpinnerInflater extends BaseViewInflater<Spinner> {
         return (context, attrs) -> {
             String mode = attrs.remove("android:spinnerMode");
             if (mode == null) {
-                return new Spinner(context);
+                return new JsSpinner(context);
             }
-            return new Spinner(context, SPINNER_MODES.get(mode));
+            return new JsSpinner(context, SPINNER_MODES.get(mode));
         };
     }
 
-    private static class EntryAdapter extends SimpleAdapter {
 
-        public EntryAdapter(Context context, List<? extends Map<String, ?>> data, int resource, String[] from, int[] to) {
-            super(context, data, resource, from, to);
-        }
-    }
 }
diff --git a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TabLayoutInflater.java b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TabLayoutInflater.java
index 164a8093..cbb3d309 100644
--- a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TabLayoutInflater.java
+++ b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TabLayoutInflater.java
@@ -1,6 +1,5 @@
 package com.stardust.autojs.core.ui.inflater.inflaters;
 
-import android.content.Context;
 import android.content.res.ColorStateList;
 import android.graphics.Color;
 import android.support.annotation.Nullable;
@@ -15,7 +14,6 @@ import com.stardust.autojs.core.ui.inflater.util.Colors;
 import com.stardust.autojs.core.ui.inflater.util.Dimensions;
 import com.stardust.autojs.core.ui.inflater.util.Gravities;
 import com.stardust.autojs.core.ui.inflater.util.ValueMapper;
-import com.stardust.autojs.core.ui.widget.JsTabLayout;
 
 import java.util.Map;
 
diff --git a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TextViewInflater.java b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TextViewInflater.java
index f92ae9d9..0bd1709a 100644
--- a/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TextViewInflater.java
+++ b/autojs/src/main/java/com/stardust/autojs/core/ui/inflater/inflaters/TextViewInflater.java
@@ -98,7 +98,7 @@ public class TextViewInflater<V extends TextView> extends BaseViewInflater<V> {
             .map("number", InputType.TYPE_CLASS_NUMBER)
             .map("signed", InputType.TYPE_NUMBER_FLAG_SIGNED);
 
-    private static final ValueMapper<Integer> TEXT_STYLES = new ValueMapper<Integer>("textStyle")
+    static final ValueMapper<Integer> TEXT_STYLES = new ValueMapper<Integer>("textStyle")
             .map("bold", Typeface.BOLD)
             .map("italic", Typeface.ITALIC)
             .map("normal", Typeface.NORMAL);
diff --git a/autojs/src/main/java/com/stardust/autojs/core/ui/widget/JsSpinner.java b/autojs/src/main/java/com/stardust/autojs/core/ui/widget/JsSpinner.java
new file mode 100644
index 00000000..8649d7f4
--- /dev/null
+++ b/autojs/src/main/java/com/stardust/autojs/core/ui/widget/JsSpinner.java
@@ -0,0 +1,163 @@
+package com.stardust.autojs.core.ui.widget;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.util.AttributeSet;
+import android.util.TypedValue;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+public class JsSpinner extends android.support.v7.widget.AppCompatSpinner {
+
+    private float mTextSize = -1;
+    private int mTextStyle = -1;
+    private int mTextColor = 0;
+
+    private float mEntryTextSize = -1;
+    private int mEntryTextStyle = -1;
+    private int mEntryTextColor = 0;
+
+    public JsSpinner(Context context) {
+        super(context);
+    }
+
+    public JsSpinner(Context context, int mode) {
+        super(context, mode);
+    }
+
+    public JsSpinner(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public JsSpinner(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public JsSpinner(Context context, AttributeSet attrs, int defStyleAttr, int mode) {
+        super(context, attrs, defStyleAttr, mode);
+    }
+
+    public JsSpinner(Context context, AttributeSet attrs, int defStyleAttr, int mode, Resources.Theme popupTheme) {
+        super(context, attrs, defStyleAttr, mode, popupTheme);
+    }
+
+
+    public float getTextSize() {
+        return mTextSize;
+    }
+
+    public float getEntryTextSize() {
+        return mEntryTextSize;
+    }
+
+    public void setEntryTextSize(float entryTextSize) {
+        mEntryTextSize = entryTextSize;
+    }
+
+    public int getEntryTextStyle() {
+        return mEntryTextStyle;
+    }
+
+    public void setEntryTextStyle(int entryTextStyle) {
+        mEntryTextStyle = entryTextStyle;
+    }
+
+    public int getEntryTextColor() {
+        return mEntryTextColor;
+    }
+
+    public void setEntryTextColor(int entryTextColor) {
+        mEntryTextColor = entryTextColor;
+    }
+
+    public void setTextSize(float textSize) {
+        mTextSize = textSize;
+        for (int i = 0; i < getChildCount(); i++) {
+            View child = getChildAt(i);
+            if (child instanceof TextView) {
+                ((TextView) child).setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextSize);
+            }
+        }
+    }
+
+
+    public int getTextStyle() {
+        return mTextStyle;
+    }
+
+    public void setTextStyle(int textStyle) {
+        mTextStyle = textStyle;
+        for (int i = 0; i < getChildCount(); i++) {
+            View child = getChildAt(i);
+            if (child instanceof TextView) {
+                ((TextView) child).setTypeface(((TextView) child).getTypeface(), mTextStyle);
+            }
+        }
+    }
+
+    public int getTextColor() {
+        return mTextColor;
+    }
+
+    public void setTextColor(int textColor) {
+        mTextColor = textColor;
+        for (int i = 0; i < getChildCount(); i++) {
+            View child = getChildAt(i);
+            if (child instanceof TextView) {
+                ((TextView) child).setTextColor(mTextColor);
+            }
+        }
+    }
+
+
+    public class Adapter extends ArrayAdapter<String> {
+
+        public Adapter(@NonNull Context context, int resource, @NonNull String[] objects) {
+            super(context, resource, objects);
+        }
+
+        @NonNull
+        @Override
+        public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
+            View view = super.getView(position, convertView, parent);
+            if (!(view instanceof TextView)) {
+                return view;
+            }
+            TextView textView = (TextView) view;
+            if (mTextColor != 0) {
+                textView.setTextColor(mTextColor);
+            }
+            if (mTextSize != -1) {
+                textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextSize);
+            }
+            if (mTextStyle != -1) {
+                textView.setTypeface(textView.getTypeface(), mTextStyle);
+            }
+            return textView;
+        }
+
+        @Override
+        public View getDropDownView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
+            View view = super.getDropDownView(position, convertView, parent);
+            if (!(view instanceof TextView)) {
+                return view;
+            }
+            TextView textView = (TextView) view;
+            if (mEntryTextColor != 0) {
+                textView.setTextColor(mEntryTextColor);
+            }
+            if (mEntryTextSize != -1) {
+                textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, mEntryTextSize);
+            }
+            if (mEntryTextStyle != -1) {
+                textView.setTypeface(textView.getTypeface(), mEntryTextStyle);
+            }
+            return textView;
+        }
+    }
+}
diff --git a/autojs/src/main/java/com/stardust/autojs/core/ui/xml/XmlConverter.java b/autojs/src/main/java/com/stardust/autojs/core/ui/xml/XmlConverter.java
index a264b8d3..f2e27cad 100644
--- a/autojs/src/main/java/com/stardust/autojs/core/ui/xml/XmlConverter.java
+++ b/autojs/src/main/java/com/stardust/autojs/core/ui/xml/XmlConverter.java
@@ -25,6 +25,7 @@ import com.stardust.autojs.core.ui.widget.JsImageView;
 import com.stardust.autojs.core.ui.widget.JsLinearLayout;
 import com.stardust.autojs.core.ui.widget.JsListView;
 import com.stardust.autojs.core.ui.widget.JsRelativeLayout;
+import com.stardust.autojs.core.ui.widget.JsSpinner;
 import com.stardust.autojs.core.ui.widget.JsTabLayout;
 import com.stardust.autojs.core.ui.widget.JsTextView;
 import com.stardust.autojs.core.ui.widget.JsToolbar;
@@ -68,7 +69,7 @@ public class XmlConverter {
                     .map("webview", JsWebView.class.getName())
                     .map("progressbar", ProgressBar.class.getName())
                     .map("seekbar", SeekBar.class.getName())
-                    .map("spinner", Spinner.class.getName())
+                    .map("spinner", JsSpinner.class.getName())
                     .map("radio", RadioButton.class.getName())
                     .map("radiogroup", RadioGroup.class.getName())
                     .map("checkbox", CheckBox.class.getName())
diff --git a/autojs/src/main/java/com/stardust/autojs/runtime/api/Files.java b/autojs/src/main/java/com/stardust/autojs/runtime/api/Files.java
index 0cf659d5..15635ad4 100644
--- a/autojs/src/main/java/com/stardust/autojs/runtime/api/Files.java
+++ b/autojs/src/main/java/com/stardust/autojs/runtime/api/Files.java
@@ -4,9 +4,11 @@ import com.stardust.autojs.engine.ScriptEngine;
 import com.stardust.autojs.runtime.ScriptRuntime;
 import com.stardust.pio.PFileInterface;
 import com.stardust.pio.PFiles;
+import com.stardust.pio.UncheckedIOException;
 import com.stardust.util.Func1;
 
 import java.io.File;
+import java.io.IOException;
 
 /**
  * Created by Stardust on 2018/1/23.
@@ -82,10 +84,23 @@ public class Files {
         return PFiles.read(path(path), encoding);
     }
 
+
     public String read(String path) {
         return PFiles.read(path(path));
     }
 
+    public String readAssets(String path, String encoding){
+        try {
+            return PFiles.read(mRuntime.getUiHandler().getContext().getAssets().open(path), encoding);
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    public String readAssets(String path){
+        return readAssets(path, "UTF-8");
+    }
+
     public byte[] readBytes(String path){
         return PFiles.readBytes(path(path));
     }
@@ -185,4 +200,5 @@ public class Files {
     public String getSimplifiedPath(String path) {
         return PFiles.getSimplifiedPath(path);
     }
+
 }
diff --git a/autojs/src/main/java/com/stardust/autojs/util/FloatingPermission.java b/autojs/src/main/java/com/stardust/autojs/util/FloatingPermission.java
index 7b5abcda..c8e59d1b 100644
--- a/autojs/src/main/java/com/stardust/autojs/util/FloatingPermission.java
+++ b/autojs/src/main/java/com/stardust/autojs/util/FloatingPermission.java
@@ -1,8 +1,14 @@
 package com.stardust.autojs.util;
 
 import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
+import android.provider.Settings;
+import android.support.annotation.RequiresApi;
+import android.text.TextUtils;
 import android.widget.Toast;
 
 import com.stardust.R;
@@ -10,6 +16,11 @@ import com.stardust.autojs.runtime.exception.ScriptInterruptedException;
 import com.stardust.enhancedfloaty.util.FloatingWindowPermissionUtil;
 import com.stardust.lang.ThreadCompat;
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Set;
+
+import ezy.assist.compat.RomUtil;
 import ezy.assist.compat.SettingsCompat;
 
 /**
@@ -19,8 +30,20 @@ import ezy.assist.compat.SettingsCompat;
 public class FloatingPermission {
 
 
+    private static final int OP_SYSTEM_ALERT_WINDOW = 24;
+    private static Method sCheckOp;
+
+    static {
+        try {
+            sCheckOp = SettingsCompat.class.getDeclaredMethod("checkOp", Context.class, int.class);
+            sCheckOp.setAccessible(true);
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        }
+    }
+
     public static void ensurePermissionGranted(Context context) {
-        if (!SettingsCompat.canDrawOverlays(context)) {
+        if (!canDrawOverlays(context)) {
             Toast.makeText(context, R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
             manageDrawOverlays(context);
             return;
@@ -28,7 +51,7 @@ public class FloatingPermission {
     }
 
     public static void waitForPermissionGranted(Context context) throws InterruptedException {
-        if (SettingsCompat.canDrawOverlays(context)) {
+        if (canDrawOverlays(context)) {
             return;
         }
         Runnable r = () -> {
@@ -41,7 +64,7 @@ public class FloatingPermission {
             r.run();
         }
         while (true) {
-            if (SettingsCompat.canDrawOverlays(context))
+            if (canDrawOverlays(context))
                 return;
             Thread.sleep(200);
         }
@@ -51,11 +74,42 @@ public class FloatingPermission {
 
     public static void manageDrawOverlays(Context context) {
         try {
-            SettingsCompat.manageDrawOverlays(context);
+            if (RomUtil.isMiui() && TextUtils.equals("V10", RomUtil.getVersion())
+                    && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                manageDrawOverlaysForAndroidM(context);
+            } else {
+                SettingsCompat.manageDrawOverlays(context);
+            }
         } catch (Exception ex) {
-            FloatingWindowPermissionUtil.goToAppDetailSettings(context, context.getPackageName());
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                manageDrawOverlaysForAndroidM(context);
+            } else {
+                FloatingWindowPermissionUtil.goToAppDetailSettings(context, context.getPackageName());
+
+            }
         }
     }
 
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    public static void manageDrawOverlaysForAndroidM(Context context) {
+        Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
+        intent.setData(Uri.parse("package:" + context.getPackageName()));
+        context.startActivity(intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+    }
 
+    public static boolean canDrawOverlays(Context context) {
+        return SettingsCompat.canDrawOverlays(context);
+    }
+
+    private static boolean checkOp(Context context, int op) {
+        if (sCheckOp == null) {
+            return SettingsCompat.canDrawOverlays(context);
+        }
+        try {
+            return (boolean) sCheckOp.invoke(null, context, op);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
 }
diff --git a/common/src/main/java/com/stardust/util/IntentUtil.java b/common/src/main/java/com/stardust/util/IntentUtil.java
index 3b595b84..93efdea4 100644
--- a/common/src/main/java/com/stardust/util/IntentUtil.java
+++ b/common/src/main/java/com/stardust/util/IntentUtil.java
@@ -84,6 +84,7 @@ public class IntentUtil {
         return goToAppDetailSettings(context, context.getPackageName());
     }
 
+    // FIXME: 2018/7/11 Permission denial
     public static void installApk(Context context, String path) {
         Intent intent = new Intent(Intent.ACTION_VIEW);