捕獲android程序崩潰日志
主要類：
package com.example.callstatus;import java.io.File; import java.io.FileOutputStream; import java.io.PrintWriter; import java.io.StringWriter; import java.lang.Thread.UncaughtExceptionHandler; import java.lang.reflect.Field; import java.net.UnknownHostException; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.Map; import android.annotation.SuppressLint; 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.telephony.TelephonyManager; import android.text.TextUtils; import android.util.Log; import android.widget.Toast; /** * 捕獲android程序崩潰日志<br> * UncaughtException處理類,當程序發生Uncaught異常的時候,有該類來接管程序. * * @author PMTOAM * */ @SuppressLint("SimpleDateFormat") public class CrashHandler implements UncaughtExceptionHandler { public static final String TAG = CrashHandler.class.getCanonicalName(); // 系統默認的UncaughtException處理類 private Thread.UncaughtExceptionHandler mDefaultHandler; // CrashHandler實例 private static CrashHandler INSTANCE = new CrashHandler(); // 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>(); // 用于格式化日期,作為日志文件名的一部分 private DateFormat formatter = new SimpleDateFormat("yyyyMMdd_HHmmss"); /** * 保證只有一個實例 */ private CrashHandler() { } /** * 獲取實例 ，單例模式 */ public static CrashHandler getInstance() { return INSTANCE; } /** * 初始化 * * @param context */ 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為程序的默認處理器 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; } // 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。", Toast.LENGTH_LONG) .show(); Looper.loop(); } }.start(); // 收集設備參數信息 collectDeviceInfo(mContext); // 保存日志文件 String str = saveCrashInfo2File(ex); Log.e(TAG, str); return false; } /** * 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,便于將文件傳送到服務器 */ 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"); } sb.append("\n" + getStackTraceString(ex)); try { String time = formatter.format(new Date()); TelephonyManager mTelephonyMgr = (TelephonyManager) mContext .getSystemService(Context.TELEPHONY_SERVICE); String imei = mTelephonyMgr.getDeviceId(); if (TextUtils.isEmpty(imei)) { imei = "unknownimei"; } String fileName = "CRS_" + time + "_" + imei + ".txt"; File sdDir = null; if (Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) sdDir = Environment.getExternalStorageDirectory(); File cacheDir = new File(sdDir + File.separator + "dPhoneLog"); if (!cacheDir.exists()) cacheDir.mkdir(); File filePath = new File(cacheDir + File.separator + fileName); FileOutputStream fos = new FileOutputStream(filePath); fos.write(sb.toString().getBytes()); fos.close(); return fileName; } catch (Exception e) { Log.e(TAG, "an error occured while writing file...", e); } return null; } /** * 獲取捕捉到的異常的字符串 */ public static String getStackTraceString(Throwable tr) { if (tr == null) { return ""; } Throwable t = tr; while (t != null) { if (t instanceof UnknownHostException) { return ""; } t = t.getCause(); } StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); tr.printStackTrace(pw); return sw.toString(); } } </pre><a href="/misc/goto?guid=4959614536118124882" class="CopyToClipboard" title="copy"></a></div></div> </div>
使用方法：
package com.example.callstatus;import android.app.Application; public class MyApplication extends Application { @Override public void onCreate() { super.onCreate(); CrashHandler crashHandler = CrashHandler.getInstance(); crashHandler.init(getApplicationContext()); } } </pre><a href="/misc/goto?guid=4959614536118124882" class="CopyToClipboard" title="copy"></a></div></div> </div>
所需權限：
</div> </div>來自：http://blog.csdn.net/wangyuexing_blog/article/details/39009069<uses-permission android:name="android.permission.READ_PHONE_STATE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />本文由用戶 jopen 自行上傳分享，僅供網友學習交流。所有權歸原作者，若您的權利被侵害，請聯系管理員。轉載本站原創文章，請注明出處，并保留原始鏈接、圖片水印。本站是一個以用戶分享為主的開源技術平臺，歡迎各類分享！相關資訊
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