使用XmlPullParser制作BindView工具

本文主要是介绍使用XmlPullParser制作BindView工具，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

在之前我写过了一个BindView的工具，之前使用的最要是正则表达的文本分析做的。最近，工作我认识了Android的XML解析，我又想起了这个问题。发现这个问题，其实用XmlPullParser更好解决。所以我重新写了这个工具。简单多了，而且不用格式化代码。

先分析一下如何写，简易思路如下

代码如下：

package com.owant.example.java;import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;/*** Created by owant on 19/10/2016.* 查找XML布局下的控件,进行生产findViewById的代码*/public class BindViewTool {public static void main(String[] arg) {bindView("/Users/owant/AndroidStudioProjects/201610/owant2/src/main/res/layout/test_bind_view.xml");}/*** private TextView info;*/private static String declare_format = "private {0} {1};";/*** info=(TextView)findViewById(R.id.text);* info=(TextView)getView().findViewById(R.id.text);*/private static String find_view_format = "{0} = ({1}){2}findViewById({3});";private static boolean isFragment = false;/*** 忽略的标识*/private static String ignoreMark = "";//找到了需要绑定的Viewprivate static ArrayList<Model> bindViews;public static void bindView(String xmlPath) {try {InputStream inputStream = new FileInputStream(new File(xmlPath));//bindView的集合bindViews = new ArrayList<>();XmlPullParser xmlPullParser = XmlPullParserFactory.newInstance().newPullParser();xmlPullParser.setInput(inputStream, "utf-8");//xmlpullparser是以事件触发为设计的代码int eventType = xmlPullParser.getEventType();while (eventType != XmlPullParser.END_DOCUMENT) {//文档结束switch (eventType) {case XmlPullParser.START_DOCUMENT://文档开始break;case XmlPullParser.START_TAG://标签开始//对于这个情况需要进行com.owant.example.view.DivViewString type = xmlPullParser.getName();int pointExist = type.lastIndexOf(".");if (pointExist != -1) {//substring这end是到end之前的//String sub = new String("你好呀!");//System.out.println(sub.substring(0, 1));>>你type = type.substring(pointExist + 1, type.length());}String androidIdValue = null;int count = xmlPullParser.getAttributeCount();for (int i = 0; i < count; i++) {String androidIdTag = xmlPullParser.getAttributeName(i);if (androidIdTag.equals("android:id")) {String androidIdTagValue = xmlPullParser.getAttributeValue(i);if (androidIdTagValue.startsWith("@+id/")) {androidIdValue = androidIdTagValue.replace("@+id/", "");//TODO ignore}}}if (androidIdValue != null) {Model model = new Model();model.mId = androidIdValue;model.mType = type;bindViews.add(model);}break;case XmlPullParser.END_TAG://标签结束break;}eventType = xmlPullParser.next();}//打印需要BindView的控件for (Model m : bindViews) {String declare = declare_format.replace("{0}", m.mType);declare = declare.replace("{1}", m.mId);System.out.println(declare);}System.out.println("\n\n");for (Model m : bindViews) {String find = find_view_format.replace("{0}", m.mId);find = find.replace("{1}", m.mType);if (isFragment) {find = find.replace("{2}", "getView().");} else {find = find.replace("{2}", "");}find = find.replace("{3}", "R.id." + m.mId);System.out.println(find);}} catch (XmlPullParserException e) {e.printStackTrace();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}public static class Model {public String mType;public String mId;}}