Android屏幕适配工具类 Android自动生成不同分辨率的值

/**
* Created by cdy on 2016/2/3. 
* 快速生成适配工具类 ,直接运行不成功需手动放入目录文件中
*/
public class DimenTool {
public static void gen() {
//以此文件夹下的dimens.xml文件内容为初始值参照 
File file = new File("./app/src/main/res/values/dimens.xml");
BufferedReader reader = null;
StringBuilder sw240 = new StringBuilder();
StringBuilder sw320 = new StringBuilder();
StringBuilder sw360 = new StringBuilder();
StringBuilder sw480 = new StringBuilder();
StringBuilder sw600 = new StringBuilder();
StringBuilder sw720 = new StringBuilder();
StringBuilder sw800 = new StringBuilder();
StringBuilder w820 = new StringBuilder();
try {
System.out.println("生成不同分辨率：");
reader = new BufferedReader(new FileReader(file));
String tempString;
int line = 1;
// 一次读入一行，直到读入null为文件结束 
while ((tempString = reader.readLine()) != null) {
if (tempString.contains("</dimen ")) {
//tempString = tempString.replaceAll(" ", ""); 
String start = tempString.substring(0, tempString.indexOf(" ") + 1);
String end = tempString.substring(tempString.lastIndexOf("<") - 2);
//截取<dimen </dimen 标签内的内容，从 右括号开始，到左括号减2，取得配置的数字 
Double num = Double.parseDouble
(tempString.substring(tempString.indexOf(" ") + 1,
tempString.indexOf("</dimen ") - 2));
//根据不同的尺寸，计算新的值，拼接新的字符串，并且结尾处换行。 
sw240.append(start).append( num * 0.75).append(end).append("\r\n");
sw320.append(start).append( num * 1).append(end).append("\r\n");
sw360.append(start).append( num * 1.125).append(end).append("\r\n");
sw480.append(start).append(num * 1.5).append(end).append("\r\n");
sw600.append(start).append(num * 1.87).append(end).append("\r\n");
sw720.append(start).append(num * 2.25).append(end).append("\r\n");
sw800.append(start).append(num * 2.5).append(end).append("\r\n");
w820.append(start).append(num * 2.56).append(end).append("\r\n");
} else {
sw240.append(tempString).append("");
sw320.append(tempString).append("");
sw360.append(tempString).append("");
sw480.append(tempString).append("");
sw600.append(tempString).append("");
sw720.append(tempString).append("");
sw800.append(tempString).append("");
w820.append(tempString).append("");
}
line++;
}
reader.close();
System.out.println("<!-- sw240 -- ");
System.out.println(sw240);
System.out.println("<!-- sw320 -- ");
System.out.println(sw320);
System.out.println("<!-- sw360 -- ");
System.out.println(sw360);
System.out.println("<!-- sw480 -- ");
System.out.println(sw480);
System.out.println("<!-- sw600 -- ");
System.out.println(sw600);
System.out.println("<!-- sw720 -- ");
System.out.println(sw720);
System.out.println("<!-- sw800 -- ");
System.out.println(sw800);
String sw240file = "./app/src/main/res/values-sw240dp/dimens.xml";
String sw320file = "./app/src/main/res/values-sw320dp/dimens.xml";
String sw360file = "./app/src/main/res/values-sw360dp/dimens.xml";
String sw480file = "./app/src/main/res/values-sw480dp/dimens.xml";
String sw600file = "./app/src/main/res/values-sw600dp/dimens.xml";
String sw720file = "./app/src/main/res/values-sw720dp/dimens.xml";
String sw800file = "./app/src/main/res/values-sw800dp/dimens.xml";
String w820file = "./app/src/main/res/values-w820dp/dimens.xml";
//将新的内容，写入到指定的文件中去 
writeFile(sw240file, sw240.toString());
writeFile(sw320file, sw320.toString());
writeFile(sw360file, sw360.toString());
writeFile(sw480file, sw480.toString());
writeFile(sw600file, sw600.toString());
writeFile(sw720file, sw720.toString());
writeFile(sw800file, sw800.toString());
writeFile(w820file, w820.toString());
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
/**
* 写入方法 
*
*/
public static void writeFile(String file, String text) {
PrintWriter out = null;
try {
out = new PrintWriter(new BufferedWriter(new FileWriter(file)));
out.println(text);
} catch (IOException e) {
e.printStackTrace();
}
out.close();
}
public static void main(String[] args) {
gen();
}
}