Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.os.Environment;

import java.io.BufferedReader;
import java.io.BufferedWriter;

import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

import java.util.ArrayList;

public class Main {
    public static void appendLog(String text) {
        File logFile = new File(Environment.getExternalStorageDirectory() + "/clr_log.file");
        if (!logFile.exists()) {
            try {
                logFile.createNewFile();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        try {
            BufferedReader buf = new BufferedReader(new FileReader(logFile));

            String line = "";
            ArrayList<String> lines = new ArrayList<String>();

            while ((line = buf.readLine()) != null) {
                lines.add(line);
            }

            int size = lines.size();

            //Every time the number of lines go over 1000, only add the last 500. This will keep its size to a minimum
            int i = lines.size() - 500;
            if (i < 0) {
                i = 0;
            }

            buf.close();

            BufferedWriter bufW = new BufferedWriter(new FileWriter(logFile, true));

            if (size > 1000) {
                bufW.write("");
                for (; i < lines.size(); i++) {
                    bufW.append(line);
                }
            }

            bufW.append(text + "\n");
            bufW.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}