自定义背景的示例

designer/designer.iml

@@ -17,6 +17,5 @@
     <orderEntry type="module" module-name="designer_base" />
     <orderEntry type="module" module-name="engine" />
     <orderEntry type="library" name="lib" level="project" />
-    <orderEntry type="module" module-name="plugins-free" />
   </component>
 </module>

designer_base/designer_base.iml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
   <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="false">
-    <output url="file://E:/env/8.0/WebReport/WEB-INF/classes" />
+    <output url="file://$MODULE_DIR$/../../env/WebReport/WEB-INF/classes" />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
     </content>

designer_base/src/com/fr/design/style/background/BackgroundFactory.java

@@ -9,7 +9,7 @@ import com.fr.design.style.background.impl.*;
 import com.fr.general.Background;
 import com.fr.general.Inter;
 
-import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Set;
 
@@ -18,8 +18,8 @@ import java.util.Set;
  */
 public class BackgroundFactory {
 
-    private static Map<Class<? extends Background>, BackgroundUIWrapper> map = new HashMap<>();
-    private static Map<Class<? extends Background>, BackgroundUIWrapper> browser = new HashMap<>();
+    private static Map<Class<? extends Background>, BackgroundUIWrapper> map = new LinkedHashMap<>();
+    private static Map<Class<? extends Background>, BackgroundUIWrapper> browser = new LinkedHashMap<>();
 
     static {
         registerUniversal(map);