import android.content.Context; 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 android.util.Log; import android.widget.Toast; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; 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.Map; /** * 崩潰日誌收集 * UncaughtException處理類,當程序發生Uncaught異常的時候,有該類來接管程序,並記錄發送錯誤報告. * <p> * 需要在Application中註冊,爲了要在程序啓動器就監控整個程序。 */ public class CrashHandler implements UncaughtExceptionHandler { public static final String TAG = "CrashHandler"; //系統默認的UncaughtException處理類 private Thread.UncaughtExceptionHandler mDefaultHandler; //CrashHandler實例 private static CrashHandler instance; //程序的Context對象 private Context mContext; //用來存儲設備信息和異常信息 private Map<String, String> infos = new HashMap<String, String>(); //用於格式化日期,作爲日誌文件名的一部分 private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss"); /** * 保證只有一個CrashHandler實例 */ private CrashHandler() { } /** * 獲取CrashHandler實例 ,單例模式 */ public static CrashHandler getInstance() { if (instance == null) instance = new CrashHandler(); return instance; } /** * 初始化 */ public void init(Context context) { mContext = context; //獲取系統默認的UncaughtException處理器 mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler(); //設置該CrashHandler爲程序的默認處理器 Thread.setDefaultUncaughtExceptionHandler(this); } /** * 當UncaughtException發生時會轉入該函數來處理 */ @Override public void uncaughtException(Thread thread, Throwable ex) { if (!handleException(ex) && mDefaultHandler != null) { //如果用戶沒有處理則讓系統默認的異常處理器來處理 mDefaultHandler.uncaughtException(thread, ex); } else { try { Thread.sleep(3000); } catch (InterruptedException e) { Log.e(TAG, "error : ", e); } //退出程序 android.os.Process.killProcess(android.os.Process.myPid()); System.exit(1); } } /** * 自定義錯誤處理,收集錯誤信息 發送錯誤報告等操作均在此完成. * * @param ex * @return true:如果處理了該異常信息;否則返回false. */ private boolean handleException(Throwable ex) { if (ex == null) { return false; } //收集設備參數信息 collectDeviceInfo(mContext); //使用Toast來顯示異常信息 new Thread() { @Override public void run() { Looper.prepare(); Toast.makeText(mContext, "很抱歉,程序出現異常,即將退出.", Toast.LENGTH_SHORT).show(); Looper.loop(); } }.start(); //保存日誌文件 saveCatchInfo2File(ex); return true; } /** * 收集設備參數信息 * * @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) { Log.e(TAG, "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()); Log.d(TAG, field.getName() + " : " + field.get(null)); } catch (Exception e) { Log.e(TAG, "an error occured when collect crash info", e); } } } /** * 保存錯誤信息到文件中 * * @param ex * @return 返回文件名稱, 便於將文件傳送到服務器 */ private String saveCatchInfo2File(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); try { long timestamp = System.currentTimeMillis(); String time = formatter.format(new Date()); sb.append("崩潰時間:" + time); String fileName = "crash-" + time + "-" + timestamp + ".log"; if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { String path = Environment.getExternalStorageDirectory() + "/" + "jumpChatRomm/"; File dir = new File(path); if (!dir.exists()) { dir.mkdirs(); } FileOutputStream fos = new FileOutputStream(path + fileName); fos.write(sb.toString().getBytes()); //發送給開發人員 sendCrashLog2PM(path + fileName); fos.close(); } return fileName; } catch (Exception e) { Log.e(TAG, "an error occured while writing file...", e); } return null; } /** * 將捕獲的導致崩潰的錯誤信息發送給開發人員 * <p> * 目前只將log日誌保存在sdcard 和輸出到LogCat中,並未發送給後臺。 */ private void sendCrashLog2PM(String fileName) { Log.e(TAG, "sendCrashLog2PM: 路徑:=-=" + fileName); if (!new File(fileName).exists()) { Toast.makeText(mContext, "日誌文件不存在!", Toast.LENGTH_SHORT).show(); return; } FileInputStream fis = null; BufferedReader reader = null; String s = null; try { fis = new FileInputStream(fileName); reader = new BufferedReader(new InputStreamReader(fis, "GBK")); while (true) { s = reader.readLine(); if (s == null) break; //由於目前尚未確定以何種方式發送,所以先打出log日誌。 Log.i("info", s.toString()); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { // 關閉流 try { reader.close(); fis.close(); } catch (IOException e) { e.printStackTrace(); } } }
}
Application中註冊初始化
//當程序發生Uncaught異常的時候,由該類來接管程序,一定要在這裏初始化
CrashHandler.getInstance().init(this);
<!--網絡權限--> <uses-permission android:name="android.permission.INTERNET" /> <!--網絡狀態--> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />