package com.basic.security.utils;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.os.Build;
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import android.os.Environment;
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import org.springframework.util.FileCopyUtils;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.FileReader;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.io.Writer;
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import java.lang.reflect.Field;
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import java.text.DateFormat;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* <h3>全局捕获异常</h3>
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* <br>
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* 当程序发生Uncaught异常的时候,有该类来接管程序,并记录错误日志
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*/
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@SuppressLint("SimpleDateFormat")
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public class CrashHandler implements Thread.UncaughtExceptionHandler {
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public static String TAG = "MyCrash";
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private static com.basic.security.utils.CrashHandler instance = new com.basic.security.utils.CrashHandler();
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// 用于格式化日期,作为日志文件名的一部分
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private static DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
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// 系统默认的UncaughtException处理类
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private Thread.UncaughtExceptionHandler mDefaultHandler;
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private Context mContext;
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// 用来存储设备信息和异常信息
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private Map<String, String> infos = new HashMap<String, String>();
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/**
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* 保证只有一个CrashHandler实例
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*/
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private CrashHandler() {
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}
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/**
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* 获取CrashHandler实例 ,单例模式
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*/
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public static com.basic.security.utils.CrashHandler getInstance() {
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return instance;
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}
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public static String getErrorContent() {
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String time = formatter.format(new Date());
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String fileName = "crash-" + time + ".log";
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String content = "";
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try {
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String path = getGlobalpath();
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File dir = new File(path);
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if (!dir.exists())
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dir.mkdirs();
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File file = new File(path + fileName);
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if (file.exists()) {
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content = FileCopyUtils.copyToString(new FileReader(file));
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return content;
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}
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public static String getGlobalpath() {
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// return BaseApplication.getApplication().getFilesDir().getAbsolutePath();
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return Environment.getExternalStorageDirectory().getAbsolutePath()
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+ File.separator + "crash" + File.separator;
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}
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public static void setTag(String tag) {
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TAG = tag;
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}
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/**
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* 初始化
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*
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* @param context
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*/
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public void init(Context context) {
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mContext = context;
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// 获取系统默认的UncaughtException处理器
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mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
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// 设置该CrashHandler为程序的默认处理器
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Thread.setDefaultUncaughtExceptionHandler(this);
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}
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/**
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* 当UncaughtException发生时会转入该函数来处理
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*/
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public void uncaughtException(Thread thread, Throwable ex) {
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handleException(ex);
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}
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/**
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* 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成.
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*
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* @param ex
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* @return true:如果处理了该异常信息; 否则返回false.
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*/
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private boolean handleException(Throwable ex) {
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collectDeviceInfo(mContext);
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try {
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saveCrashInfoFile(ex);
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} catch (Exception e) {
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e.printStackTrace();
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}
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AppUtil.restartApp(mContext);
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return true;
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}
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/**
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* 收集设备参数信息
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*
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* @param ctx
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*/
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public void collectDeviceInfo(Context ctx) {
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try {
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PackageManager pm = ctx.getPackageManager();
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PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(),
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PackageManager.GET_ACTIVITIES);
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if (pi != null) {
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String versionName = pi.versionName + "";
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String versionCode = pi.versionCode + "";
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infos.put("versionName", versionName);
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infos.put("versionCode", versionCode);
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}
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} catch (PackageManager.NameNotFoundException e) {
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System.out.println("CrashHandler.collectDeviceInfo " + e.getMessage());
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}
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Field[] fields = Build.class.getDeclaredFields();
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for (Field field : fields) {
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try {
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field.setAccessible(true);
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infos.put(field.getName(), field.get(null).toString());
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} catch (Exception e) {
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System.out.println("CrashHandler.collectDeviceInfo " + e.getMessage());
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}
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}
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}
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/**
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* 保存错误信息到文件中
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*
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* @param ex
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* @return 返回文件名称, 便于将文件传送到服务器
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* @throws Exception
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*/
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private String saveCrashInfoFile(Throwable ex) throws Exception {
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StringBuffer sb = new StringBuffer();
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try {
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SimpleDateFormat sDateFormat = new SimpleDateFormat(
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"yyyy-MM-dd HH:mm:ss");
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String date = sDateFormat.format(new Date());
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sb.append("\r\n" + date + "\n");
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for (Map.Entry<String, String> entry : infos.entrySet()) {
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String key = entry.getKey();
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String value = entry.getValue();
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sb.append(key + "=" + value + "\n");
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}
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Writer writer = new StringWriter();
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PrintWriter printWriter = new PrintWriter(writer);
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ex.printStackTrace(printWriter);
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Throwable cause = ex.getCause();
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while (cause != null) {
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cause.printStackTrace(printWriter);
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cause = cause.getCause();
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}
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printWriter.flush();
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printWriter.close();
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String result = writer.toString();
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sb.append(result);
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return writeFile(sb.toString());
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} catch (Exception e) {
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System.out.println("CrashHandler.saveCrashInfoFile " + e.getMessage());
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sb.append("an error occured while writing file...\r\n");
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writeFile(sb.toString());
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}
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return null;
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}
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private String writeFile(String sb) throws Exception {
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String time = formatter.format(new Date());
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String fileName = "crash-" + time + ".log";
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System.out.println("CrashHandler.writeFile " + sb);
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// if (FileUtil.hasSdcard()) {
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if (true) {
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String path = getGlobalpath();
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File dir = new File(path);
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if (!dir.exists())
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dir.mkdirs();
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FileOutputStream fos = new FileOutputStream(path + fileName, true);
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fos.write(sb.getBytes());
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fos.flush();
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fos.close();
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}
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return fileName;
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}
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/**
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* 文件删除
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*
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* @param day 文件保存天数
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*/
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// public void autoClear(final int autoClearDay) {
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// FileUtil.delete(getGlobalpath(), new FilenameFilter() {
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//
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//
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// public boolean accept(File file, String filename) {
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// String s = FileUtil.getFileNameWithoutExtension(filename);
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// int day = autoClearDay < 0 ? autoClearDay : -1 * autoClearDay;
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// String date = "crash-" + DateUtil.getOtherDay(day);
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// return date.compareTo(s) >= 0;
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// }
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// });
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//
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// }
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}
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