renrenSDK中有个获取系统Log的方法 将来可能用的到吧

/*** $id$*/
package com.renren.api.connect.android.demo;import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;/*** Read the logcat log* * @author Shaofeng Wang (shaofeng.wang@renren-inc.com)*/
public final class LogHelper {private static final String LOG_TAG_REQUEST = "Renren-SDK-Request";private static final String LOG_TAG_RESPONSE = "Renren-SDK-Response";/*** Get the log using the specified filter * * @param tag * @return*/public synchronized String getLog() { StringBuffer logger = new StringBuffer();try {Process process = Runtime.getRuntime().exec("logcat -v time + "+ LOG_TAG_REQUEST + ":I " + LOG_TAG_RESPONSE + ":I *:S");BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()), 1024);Thread thread = new Thread(new LogFinalizer(process));thread.start();String line = bufferedReader.readLine();while (line != null && line.length() != 0) {logger.append(parseLog(line));line = bufferedReader.readLine();}if(bufferedReader != null) {bufferedReader.close();}} catch (IOException e) {e.printStackTrace();}return logger.toString();}/*** clear the log*/public synchronized void clear() {try {Runtime.getRuntime().exec("logcat -c + "+ LOG_TAG_REQUEST + ":I " + LOG_TAG_RESPONSE + ":I *:S");} catch (IOException e) {}}/*** 解析log为显示格式* @param log* @return*/private static String parseLog(String logStr) {StringBuffer sb = new StringBuffer();String requestTag = "I/" + LOG_TAG_REQUEST;String responseTag = "I/" + LOG_TAG_RESPONSE;if(logStr.contains(requestTag)) { //请求log 格式形如：08-23 03:05:43.112 I/Renren-SDK-Request(  775): //method=users.getInfo&Bundle[{v=1.0, uids=3××××××, …… StringBuffer log = new StringBuffer(logStr);int tagIndex = log.indexOf(requestTag);//添加时间sb.append(log.substring(0, tagIndex)).append("\r\n");int methodIndex = log.indexOf("method");int methodEnd = log.indexOf("&");//添加method项sb.append(log.substring(methodIndex, methodEnd)).append("\r\n").append("request:\r\n");String bundleStr = "Bundle[{";int paramIndex = log.indexOf(bundleStr, 0) + bundleStr.length();//获取参数序列（不包括"[{"以及"}]"）String paramStr = log.substring(paramIndex, log.length() - 2);//添加参数 key=value 对String[] params = paramStr.split(",");sb.append("{\r\n");if(params != null) {for(String str : params) {sb.append("\t").append(str.trim()).append(";\r\n");}}sb.append("}\r\n\r\n");} else if(logStr.contains(responseTag)){ //响应log 格式形如：03:05:51.452 I/Renren-SDK-Response(  775): // method=status.set&{"result":1}…… StringBuffer log = new StringBuffer(logStr);int tagIndex = log.indexOf(responseTag);//添加时间sb.append(log.substring(0, tagIndex)).append("\r\n");int methodIndex = log.indexOf("method");int methodEnd = log.indexOf("&");//添加method项sb.append(log.substring(methodIndex, methodEnd)).append("\r\n").append("response:\r\n");int paramIndex = methodEnd + 1;//获取参数序列String paramStr = log.substring(paramIndex, log.length());//添加参数 key=value 对paramStr.replace(",", ",\r\n");sb.append(paramStr).append("\r\n\r\n");} else {return logStr;}return sb.toString();}/*** Used to stop the log process after a specified time * * @author Shaofeng Wang (shaofeng.wang@renren-inc.com)*/private class LogFinalizer implements Runnable{private Process process;public LogFinalizer(Process process) {this.process = process;}@Overridepublic void run() {try {Thread.sleep(2000);} catch (InterruptedException e) {}process.destroy();}}
}