创建一种声明性XML UI语言 - 用Java语言构建一个UI和配套框架 - 编程入门网
作者 佚名技术
来源 NET编程
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发布时间 2012-06-20
| I // that is, the periods can represent packages. StringTokenizer st = new StringTokenizer(remoteClass.getName(), "."); String previousToken = st.nextToken(); String currentToken = ""; String nameOfClassToLoad = previousToken; while(st.hasMoreTokens()) { currentToken = st.nextToken(); if(currentToken.equals("class")) nameOfClassToLoad = previousToken; else { nameOfClassToLoad += currentToken; } } // get an output stream (byte based) attach it to the //inputstream from the jar file based on the jar entry. ByteArrayOutputStream baos = new ByteArrayOutputStream(); InputStream is = jarFile.getInputStream(remoteClass); final byte[] bytes = new byte[1024]; int read = 0; while ((read = is.read(bytes)) >= 0) { baos.write(bytes, 0, read); } Class c = xuiLoader.getXUIClass(nameOfClassToLoad, baos); // check for the class that has the init method. if(remoteClass.getName().equals(className + ".class")) { modelClassEntry = remoteClass; modelClass = c; } } else { String imageNameLowerCase = remoteClass.getName().toLowerCase(); if(imageNameLowerCase.endsWith(".jpeg") || imageNameLowerCase.endsWith(".jpg") || imageNameLowerCase.endsWith(".gif") || imageNameLowerCase.endsWith(".png")) { // add resources (images) XUIResources.getInstance().addResource(remoteClass, jarFile); } } } // now instantiate the model. try { // create a new instance of this class Object o = modelClass.newInstance(); // get the method called ''init''. This is part of the API // requirement Method m = modelClass.getMethod("init", new Class[] {XUI.class}); // at last, call the method up. m.invoke(o, new Object[] {xui}); } catch(InstantiationException ie) { ie.printStackTrace(); } catch(IllegalAccessException iae) { iae.printStackTrace(); } catch(NoSuchMethodException nsm) { nsm.printStackTrace(); } catch(InvocationTargetException ite) { |
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