try to fix crash under android19

app/build.gradle

@@ -9,8 +9,8 @@ android {
         applicationId "com.stardust.scriptdroid"
         minSdkVersion 17
         targetSdkVersion 23
-        versionCode 145
-        versionName "2.0.13 Beta3"
+        versionCode 146
+        versionName "2.0.14 Alpha"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
         ndk {

app/src/main/assets/modules/dialogs.js

@@ -1,3 +0,0 @@
-module.exports = function(){
-
-}

app/src/main/assets/sample/图片与图色处理/颜色获取和检测.js

@@ -0,0 +1,12 @@
+if(!requestScreenCapture()){
+  toast("请求截图失败");
+}
+sleep(2000);
+var x = 760;
+var y = 180;
+//获取在点(x, y)处的颜色
+var c = images.pixel(captureScreen(), x, y);
+//显示该颜色
+toast((c >>> 0).toString(16));
+//检测在点(x, y)处是否有颜色0x73bdb6 (模糊比较)
+toast(images.detectsColor(captureScreen(), x, y, 0x73bdb6))

autojs/src/main/assets/modules/__images__.js

@@ -1,18 +1,23 @@
 
 module.exports = function(__runtime__, scope){
    var images = {};
+   if(android.os.Build.VERSION.SDK_INT < 19){
+        return images;
+   }
 
-   var colorFinder = __runtime__.images.colorFinder;
+   var rtImages = __runtime__.getImages();
 
-   images.requestScreenCapture = __runtime__.images.requestScreenCapture.bind(__runtime__.images);
+   var colorFinder = rtImages.colorFinder;
 
-   images.captureScreen = __runtime__.images.captureScreen.bind(__runtime__.images);
+   images.requestScreenCapture = rtImages.requestScreenCapture.bind(rtImages);
 
-   images.saveImage = __runtime__.images.saveImage.bind(__runtime__.images);
+   images.captureScreen = rtImages.captureScreen.bind(rtImages);
 
-   images.pixel = __runtime__.images.pixel;
+   images.saveImage = rtImages.saveImage.bind(rtImages);
 
-   images.detectsColor = __runtime__.images.detectsColor.bind(__runtime__.images);
+   images.pixel = rtImages.pixel;
+
+   images.detectsColor = rtImages.detectsColor.bind(rtImages);
 
    images.findColor = function(img, color, options){
         if(typeof(color) == 'string'){

autojs/src/main/java/com/stardust/autojs/runtime/AbstractScriptRuntime.java

@@ -1,6 +1,7 @@
 package com.stardust.autojs.runtime;
 
 import android.content.Context;
+import android.os.Build;
 import android.support.annotation.CallSuper;
 
 import com.stardust.autojs.engine.ScriptEngine;
@@ -40,12 +41,12 @@ public abstract class AbstractScriptRuntime {
     @ScriptVariable
     public UI ui;
 
-    @ScriptVariable
-    public Images images;
 
     @ScriptVariable
     public Dialogs dialogs;
 
+    private Images images;
+
     private static WeakReference<Context> applicationContext;
 
     public AbstractScriptRuntime(UiHandler uiHandler, Console console, AccessibilityBridge bridge, AppUtils appUtils, ScreenCaptureRequester screenCaptureRequester) {
@@ -54,7 +55,9 @@ public abstract class AbstractScriptRuntime {
         this.automator = new SimpleActionAutomator(bridge, this);
         this.info = bridge.getInfoProvider();
         this.ui = new UI(uiHandler.getContext());
-        images = new Images(uiHandler.getContext(), this, screenCaptureRequester);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            images = new Images(uiHandler.getContext(), this, screenCaptureRequester);
+        }
         dialogs = new Dialogs(app, uiHandler);
     }
 
@@ -109,6 +112,12 @@ public abstract class AbstractScriptRuntime {
 
     @CallSuper
     public void onStop() {
-        images.releaseScreenCapturer();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            images.releaseScreenCapturer();
+        }
+    }
+
+    public Object getImages() {
+        return images;
     }
 }