Android的一个BindView工具的实现

article/2025/8/24 8:04:26

对于Android已经有很多Bind View的工具了，大多都是使用了反射和注解的方法。那么如何实现一个简易的代码生成工具呢？其实不难，只要会写代码都可以试试。这些天，我试了一下，并将它做成了工具。代码如下：

package com.example;import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;/*** Created by owant on 2016/8/4.*/
public class BindViewTool {public static String xmlPath = "F:\\MyWorkAS\\NewHome\\app\\src\\main\\res\\layout\\activity_main.xml";//第一个是类型，第二个是名字public static String formatValue = "private {0} {1};";//第一个是变量，第二是类型，第三个是IDpublic static String formatBind = "{0}=({1})findViewById(R.id.{2});";public static void main(String[] arg) {//读取文件try {String path="";path=arg[0];if(path.length()<0){System.out.println("请输入文件路径");return;}BufferedReader bufferedReader = new BufferedReader(new FileReader(new File(path)));StringBuffer context = new StringBuffer();String line;String startLine = "";String endLine = "";while ((line = bufferedReader.readLine()) != null) {if (line.trim().length() > 0) {//进入<if (line.trim().startsWith("<") && !line.trim().startsWith("</")) {startLine = line.trim();}//如果已经进入了<，进行查找Idif (startLine.length() > 0) {if (line.indexOf("android:id=\"@+id/") > 0) {endLine = line.trim();context.append(startLine.trim()).append("&&");context.append(endLine.trim()).append("&&");startLine = "";endLine = "";}}}}String contextValue = context.toString();contextValue = contextValue.substring(0, contextValue.length() - "&&".length());String[] splits = contextValue.split("&&");int length = splits.length;List<String> variables = new ArrayList<String>();List<String> binds = new ArrayList<String>();for (int i = 0; i < length; i = i + 2) {String type = splits[i].replace("<", "");if (type.lastIndexOf(".") > 0) {type = type.substring(type.lastIndexOf(".")+1, type.length());}String id = splits[i + 1].substring("android:id=\"@+id/".length(), splits[i + 1].length() - 1);// public static String formatValue = "private {0} {1}";String value = formatValue.replace("{0}", type);value = value.replace("{1}", id);variables.add(value);//public static String formatBind = "{0}=({1})findViewById(R.id.{2})";String bind = formatBind.replace("{0}", id);bind = bind.replace("{1}", type);bind = bind.replace("{2}", id);binds.add(bind);}System.out.println();System.out.println();for (String var : variables) {System.out.println(var);}System.out.println();System.out.println();for (String b : binds) {System.out.println(b);}} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}
}