// 全局异常捕获 if (LogLevel.enableLog) { GlobalExceptionHanlder.getInstance().register(getApplicationContext()); }
package com.utils; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.PrintWriter; import java.io.StringWriter; import java.io.Writer; import java.lang.Thread.UncaughtExceptionHandler; import java.lang.reflect.Field; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.Locale; import java.util.Map; import android.content.Context; import android.content.Intent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.os.Build; import android.os.Environment; import android.os.Looper; import com.***.***.R; import com.utils.logging.LogUtil; /** * 全局异常捕获类 * * @author Eric.wsd * @since 2012-5-21 */ public class GlobalExceptionHanlder implements UncaughtExceptionHandler { public static String ACTION = null; // 系统默认的UncaughtException处理类 private Thread.UncaughtExceptionHandler mDefaultHandler; // GlobalExceptionHanlder实例 private static GlobalExceptionHanlder mHandler; // 程序的Context对象 private Context mContext; // 用来存储设备信息和异常信息 private Map<String, String> infos = new HashMap<String, String>(); // 用于格式化日期,作为日志文件名的一部分 private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss", Locale.getDefault()); // 日志位置 private String logPath = null; // 异常信息等级 public GlobalExceptionHanlder() { } /** * 注册异常处理 * * @param context */ public void register(Context context) { mContext = context; // 获取系统默认的UncaughtException处理器 mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler(); // 设置该GlobalExceptionHanlder为程序的默认处理器 Thread.setDefaultUncaughtExceptionHandler(this); ACTION = context.getString(R.string.global_exception_action); logPath = Environment.getExternalStorageDirectory() + context.getString(R.string.global_exception_sdcard_dir); } /** 获取GlobalExceptionHanlder实例 ,单例模式 */ public static GlobalExceptionHanlder getInstance() { if (mHandler == null) { mHandler = new GlobalExceptionHanlder(); } return mHandler; } @Override public void uncaughtException(Thread thread, Throwable ex) { // if (!HttpUtils.isNetworkConnected(mContext)) { // Toast.makeText(mContext, "网络异常,请检查网络设置", Toast.LENGTH_LONG).show(); // } if (!handleException(ex) && mDefaultHandler != null) { // 如果用户没有处理则让系统默认的异常处理器来处理 mDefaultHandler.uncaughtException(thread, ex); } else { try { Thread.sleep(3000); } catch (InterruptedException e) { LogUtil.e("error : " + e); } systemExit(); } } /** * 退出程序 */ private void systemExit() { Intent intent = new Intent(); intent.setAction(GlobalExceptionHanlder.ACTION); android.os.Process.killProcess(android.os.Process.myPid()); System.exit(0); } /** * 检查SD卡是否可用 * * @return */ public static boolean checkSDCard() { if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) return true; else return false; } /** * 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. * * @param ex * @return true:如果处理了该异常信息;否则返回false. */ private boolean handleException(Throwable ex) { if (ex == null) { return true; } // 使用Toast来显示异常信息 new Thread() { @Override public void run() { Looper.prepare(); // 初始化用户信息 // InfoBuyerStorage.newInstance(mContext).notifyDataSetChanged(); Looper.loop(); } }.start(); // 收集设备参数信息 collectDeviceInfo(mContext); boolean isEnable = Boolean.parseBoolean(mContext.getString(R.string.global_exception_enable)); if (isEnable) saveCrashInfo2File(ex);// 保存日志文件 // 分类处理异常 return true; } /** * 收集设备参数信息 * * @param ctx */ public void collectDeviceInfo(Context ctx) { try { PackageManager pm = ctx.getPackageManager(); PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES); if (pi != null) { String versionName = pi.versionName == null ? "null" : pi.versionName; String versionCode = pi.versionCode + ""; infos.put("versionName", versionName); infos.put("versionCode", versionCode); } } catch (NameNotFoundException e) { LogUtil.e("an error occured when collect package info" + e); } Field[] fields = Build.class.getDeclaredFields(); for (Field field : fields) { try { field.setAccessible(true); infos.put(field.getName(), field.get(null).toString()); LogUtil.d(field.getName() + " : " + field.get(null)); } catch (Exception e) { LogUtil.e("an error occured when collect crash info" + e); } } } /** * 保存错误信息到文件中 * * @param ex * @return 返回文件名称,便于将文件传送到服务器 */ private String saveCrashInfo2File(Throwable ex) { StringBuffer sb = new StringBuffer(); for (Map.Entry<String, String> entry : infos.entrySet()) { String key = entry.getKey(); String value = entry.getValue(); sb.append(key + "=" + value + "\n"); } Writer writer = new StringWriter(); PrintWriter printWriter = new PrintWriter(writer); ex.printStackTrace(printWriter); Throwable cause = ex.getCause(); while (cause != null) { cause.printStackTrace(printWriter); cause = cause.getCause(); } printWriter.close(); String result = writer.toString(); sb.append(result); LogUtil.e(result);// 此处如果改成Log.d();有些手机异常会打印不出来 FileOutputStream fos = null; try { long timestamp = System.currentTimeMillis(); String time = formatter.format(new Date()); String fileName = mContext.getString(R.string.app_name) + "-" + time + "-" + timestamp + ".log"; if (checkSDCard()) { File dir = new File(logPath); if (!dir.exists()) { dir.mkdirs(); } fos = new FileOutputStream(logPath + fileName); fos.write(sb.toString().getBytes()); } return fileName; } catch (Exception e) { LogUtil.e("an error occured while writing file..." + e); } finally { try { if (fos != null) { fos.close(); } } catch (IOException e) { LogUtil.e("an error occured while close file..." + e); } } return null; } /** * 删除所有的日志文件 */ public void clearAllLogs(final Context ctx) { if (checkSDCard()) { try { File file = new File(logPath); if (file != null && file.exists()) { File[] files = file.listFiles(); for (int i = 0; i < files.length; i++) { files[i].delete(); } } } catch (Exception e) { e.printStackTrace(); } } } /** * 异步删除所有日志文件 * * @param ctx */ public void asynClearAllLogs(final Context ctx) { new Thread() { public void run() { clearAllLogs(ctx); } }.start(); } }
资源文件如下:
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="global_exception_action">com.utils.GlobalExceptionHanlder</string> <string name="global_exception_sdcard_dir">/dir/log/</string> <string name="global_exception_enable">true</string> </resources>