diff --git a/.idea/modules.xml b/.idea/modules.xml
index 4fac18b4..7e950955 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -2,8 +2,8 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
+      <module fileurl="file://$PROJECT_DIR$/Auto.js.iml" filepath="$PROJECT_DIR$/Auto.js.iml" />
       <module fileurl="file://E:\YiBin\AndroidStudioProjects\NoRootScriptDroid\Auto.js.iml" filepath="E:\YiBin\AndroidStudioProjects\NoRootScriptDroid\Auto.js.iml" />
-      <module fileurl="file://$PROJECT_DIR$/NoRootScriptDroid.iml" filepath="$PROJECT_DIR$/NoRootScriptDroid.iml" />
       <module fileurl="file://C:\Users\Stardust\Documents\AndroidProjects\Auto.js\NoRootScriptDroid.iml" filepath="C:\Users\Stardust\Documents\AndroidProjects\Auto.js\NoRootScriptDroid.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
       <module fileurl="file://$PROJECT_DIR$/autojs/autojs.iml" filepath="$PROJECT_DIR$/autojs/autojs.iml" />
diff --git a/app/src/main/java/com/stardust/scriptdroid/build/ApkBuilderPluginHelper.java b/app/src/main/java/com/stardust/scriptdroid/build/ApkBuilderPluginHelper.java
index b7992505..d8667b63 100644
--- a/app/src/main/java/com/stardust/scriptdroid/build/ApkBuilderPluginHelper.java
+++ b/app/src/main/java/com/stardust/scriptdroid/build/ApkBuilderPluginHelper.java
@@ -1,11 +1,13 @@
 package com.stardust.scriptdroid.build;
 
 import android.content.Context;
+import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.os.Build;
 
-import com.stardust.BuildConfig;
 import com.stardust.pio.UncheckedIOException;
+import com.stardust.scriptdroid.BuildConfig;
+import com.stardust.scriptdroid.ui.build.BuildActivity;
 import com.stardust.util.DeveloperUtils;
 
 import java.io.IOException;
@@ -20,7 +22,7 @@ public class ApkBuilderPluginHelper {
     private static final String PLUGIN_PACKAGE_NAME = "org.autojs.apkbuilderplugin";
     private static final String TEMPLATE_APK_PATH = "template.apk";
 
-    public static boolean checkPlugin(Context context) {
+    public static boolean isPluginAvailable(Context context) {
         return DeveloperUtils.checkSignature(context, PLUGIN_PACKAGE_NAME);
     }
 
@@ -37,4 +39,17 @@ public class ApkBuilderPluginHelper {
             throw new RuntimeException(e);
         }
     }
+
+    public static int getPluginVersion(Context context) {
+        try {
+            PackageInfo info = context.getPackageManager().getPackageInfo(PLUGIN_PACKAGE_NAME, 0);
+            return info.versionCode;
+        } catch (PackageManager.NameNotFoundException e) {
+            return -1;
+        }
+    }
+
+    public static int getSuitablePluginVersion() {
+        return BuildConfig.VERSION_CODE - 200;
+    }
 }
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/build/BuildActivity.java b/app/src/main/java/com/stardust/scriptdroid/ui/build/BuildActivity.java
index a06df7bc..34601b30 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/build/BuildActivity.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/build/BuildActivity.java
@@ -9,12 +9,12 @@ import android.support.design.widget.TextInputEditText;
 import android.support.design.widget.TextInputLayout;
 import android.text.TextUtils;
 import android.util.Log;
-import android.widget.EditText;
 import android.widget.ImageView;
 import android.widget.Toast;
 
 import com.afollestad.materialdialogs.MaterialDialog;
 import com.stardust.autojs.project.ProjectConfig;
+import com.stardust.scriptdroid.BuildConfig;
 import com.stardust.scriptdroid.R;
 import com.stardust.scriptdroid.autojs.build.AutoJsApkBuilder;
 import com.stardust.scriptdroid.build.ApkBuilderPluginHelper;
@@ -35,6 +35,7 @@ import org.androidannotations.annotations.ViewById;
 
 import java.io.File;
 import java.io.InputStream;
+import java.util.Locale;
 import java.util.concurrent.Callable;
 
 import io.reactivex.Observable;
@@ -82,25 +83,41 @@ public class BuildActivity extends BaseActivity implements AutoJsApkBuilder.Prog
         if (sourcePath != null) {
             setupWithSourceFile(new ScriptFile(sourcePath));
         }
-        showPluginDownloadDialogIfNeeded();
+        checkApkBuilderPlugin();
     }
 
-    private void showPluginDownloadDialogIfNeeded() {
-        if (ApkBuilderPluginHelper.checkPlugin(this)) {
+    private void checkApkBuilderPlugin() {
+        if (!ApkBuilderPluginHelper.isPluginAvailable(this)) {
+            showPluginDownloadDialog(R.string.no_apk_builder_plugin, true);
             return;
         }
+        int version = ApkBuilderPluginHelper.getPluginVersion(this);
+        if (version < 0) {
+            showPluginDownloadDialog(R.string.no_apk_builder_plugin, true);
+            return;
+        }
+        if (version < ApkBuilderPluginHelper.getSuitablePluginVersion()) {
+            showPluginDownloadDialog(R.string.apk_builder_plugin_version_too_low, false);
+        }
+
+    }
+
+    private void showPluginDownloadDialog(int msgRes, boolean finishIfCanceled) {
         new ThemeColorMaterialDialogBuilder(this)
-                .content(R.string.no_apk_builder_plugin)
+                .content(msgRes)
                 .positiveText(R.string.ok)
                 .negativeText(R.string.text_exit)
                 .onPositive((dialog, which) -> downloadPlugin())
-                .onNegative((dialog, which) -> finish())
+                .onNegative((dialog, which) -> {
+                    if (finishIfCanceled) finish();
+                })
                 .show();
 
     }
 
     private void downloadPlugin() {
-        IntentUtil.browse(this, "https://www.autojs.org/assets/autojs/plugin.apk");
+        IntentUtil.browse(this, String.format(Locale.getDefault(),
+                "https://i.autojs.org/autojs/plugin/%d.apk", ApkBuilderPluginHelper.getSuitablePluginVersion()));
     }
 
     private void setupWithSourceFile(ScriptFile file) {
@@ -165,7 +182,7 @@ public class BuildActivity extends BaseActivity implements AutoJsApkBuilder.Prog
 
     @Click(R.id.fab)
     void buildApk() {
-        if (!ApkBuilderPluginHelper.checkPlugin(this)) {
+        if (!ApkBuilderPluginHelper.isPluginAvailable(this)) {
             Toast.makeText(this, R.string.text_apk_builder_plugin_unavailable, Toast.LENGTH_SHORT).show();
             return;
         }
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 66c32ed7..2c1d3716 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -350,4 +350,5 @@
     <string name="text_size_current_value" formatted="true">字体大小: %d</string>
     <string name="error_regex_find_prev">正则表达式不能向前查找</string>
     <string name="text_notification">通知</string>
+    <string name="apk_builder_plugin_version_too_low">打包插件版本过低，打包的应用可能无法正常运行。是否立即下载对应版本的打包插件？</string>
 </resources>
diff --git a/autojs/src/main/java/com/stardust/autojs/core/graphics/ScriptCanvas.java b/autojs/src/main/java/com/stardust/autojs/core/graphics/ScriptCanvas.java
index 495553de..2041e491 100644
--- a/autojs/src/main/java/com/stardust/autojs/core/graphics/ScriptCanvas.java
+++ b/autojs/src/main/java/com/stardust/autojs/core/graphics/ScriptCanvas.java
@@ -25,14 +25,14 @@ import com.stardust.autojs.runtime.ScriptRuntime;
 
 public class ScriptCanvas {
 
-    private android.graphics.Canvas mCanvas;
+    private Canvas mCanvas;
 
-    public ScriptCanvas(android.graphics.Canvas canvas) {
+    public ScriptCanvas(Canvas canvas) {
         mCanvas = canvas;
     }
 
     public ScriptCanvas(@NonNull Bitmap bitmap) {
-        mCanvas = new android.graphics.Canvas(bitmap);
+        mCanvas = new Canvas(bitmap);
     }
 
     public ScriptCanvas(@NonNull ImageWrapper image) {
@@ -239,15 +239,15 @@ public class ScriptCanvas {
         mCanvas.setDrawFilter(filter);
     }
 
-    public boolean quickReject(@NonNull RectF rect, @NonNull android.graphics.Canvas.EdgeType type) {
+    public boolean quickReject(@NonNull RectF rect, @NonNull Canvas.EdgeType type) {
         return mCanvas.quickReject(rect, type);
     }
 
-    public boolean quickReject(@NonNull Path path, @NonNull android.graphics.Canvas.EdgeType type) {
+    public boolean quickReject(@NonNull Path path, @NonNull Canvas.EdgeType type) {
         return mCanvas.quickReject(path, type);
     }
 
-    public boolean quickReject(float left, float top, float right, float bottom, @NonNull android.graphics.Canvas.EdgeType type) {
+    public boolean quickReject(float left, float top, float right, float bottom, @NonNull Canvas.EdgeType type) {
         return mCanvas.quickReject(left, top, right, bottom, type);
     }
 
@@ -382,7 +382,7 @@ public class ScriptCanvas {
         mCanvas.drawBitmapMesh(bitmap, meshWidth, meshHeight, verts, vertOffset, colors, colorOffset, paint);
     }
 
-    public void drawVertices(@NonNull android.graphics.Canvas.VertexMode mode, int vertexCount, @NonNull float[] verts, int vertOffset, @Nullable float[] texs, int texOffset, @Nullable int[] colors, int colorOffset, @Nullable short[] indices, int indexOffset, int indexCount, @NonNull Paint paint) {
+    public void drawVertices(@NonNull Canvas.VertexMode mode, int vertexCount, @NonNull float[] verts, int vertOffset, @Nullable float[] texs, int texOffset, @Nullable int[] colors, int colorOffset, @Nullable short[] indices, int indexOffset, int indexCount, @NonNull Paint paint) {
         mCanvas.drawVertices(mode, vertexCount, verts, vertOffset, texs, texOffset, colors, colorOffset, indices, indexOffset, indexCount, paint);
     }