Android Uncaught Exception Handler郵件發送錯誤日誌

Use for "Force Close".

 

//close the activity immediately.

 

android.os.Process.killProcess(android.os.Process.myPid());

System.exit(0);

 

 

Post from:

http://blog.blackmoonit.com/2010/02/android-postmortem-reports-via-email.html

 

package com.myapp; import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.lang.Thread.UncaughtExceptionHandler; import java.lang.reflect.Field; import java.text.DecimalFormat; import java.text.NumberFormat; import java.text.SimpleDateFormat; import java.util.Date; import android.app.Activity; 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; public class PostMortemReportExceptionHandler implements UncaughtExceptionHandler, Runnable { public static final String ExceptionReportFilename = "postmortem.trace"; private static final String MSG_SUBJECT_TAG = "Exception Report"; //"app title + this tag" = email subject private static final String MSG_SENDTO = "[e-mail]"; //email will be sent to this account //the following may be something you wish to consider localizing private static final String MSG_BODY = "Please help by sending this email. "+ "No personal information is being sent (you can check by reading the rest of the email)."; private Thread.UncaughtExceptionHandler mDefaultUEH; private Activity mApp = null; public PostMortemReportExceptionHandler(Activity aApp) { mDefaultUEH = Thread.getDefaultUncaughtExceptionHandler(); mApp = aApp; } @Override protected void finalize() throws Throwable { if (Thread.getDefaultUncaughtExceptionHandler().equals(this)) Thread.setDefaultUncaughtExceptionHandler(mDefaultUEH); super.finalize(); } @Override public void uncaughtException(Thread t, Throwable e) { submit(e); //do not forget to pass this exception through up the chain if (mDefaultUEH!=null) mDefaultUEH.uncaughtException(t,e); } public String getDebugReport(Throwable aException) { NumberFormat theFormatter = new DecimalFormat("#0."); String theErrReport = ""; theErrReport += mApp.getPackageName()+" generated the following exception:/n"; theErrReport += aException.toString()+"/n/n"; //stack trace StackTraceElement[] theStackTrace = aException.getStackTrace(); if (theStackTrace.length>0) { theErrReport += "--------- Stack trace ---------/n"; for (int i=0; i<theStackTrace.length; i++) { theErrReport += theFormatter.format(i+1)+"/t"+theStackTrace[i].toString()+"/n"; }//for theErrReport += "-------------------------------/n/n"; } //if the exception was thrown in a background thread inside //AsyncTask, then the actual exception can be found with getCause Throwable theCause = aException.getCause(); if (theCause!=null) { theErrReport += "----------- Cause -----------/n"; theErrReport += theCause.toString() + "/n/n"; theStackTrace = theCause.getStackTrace(); for (int i=0; i<theStackTrace.length; i++) { theErrReport += theFormatter.format(i+1)+"/t"+theStackTrace[i].toString()+"/n"; }//for theErrReport += "-----------------------------/n/n"; }//if //app environment PackageManager pm = mApp.getPackageManager(); PackageInfo pi; try { pi = pm.getPackageInfo(mApp.getPackageName(), 0); } catch (NameNotFoundException eNnf) { //doubt this will ever run since we want info about our own package pi = new PackageInfo(); pi.versionName = "unknown"; pi.versionCode = 69; } Date theDate = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd_HH.mm.ss_zzz"); theErrReport += "-------- Environment --------/n"; theErrReport += "Time/t="+sdf.format(theDate)+"/n"; theErrReport += "Device/t="+Build.FINGERPRINT+"/n"; try { Field theMfrField = Build.class.getField("MANUFACTURER"); theErrReport += "Make/t="+theMfrField.get(null)+"/n"; } catch (SecurityException e) { } catch (NoSuchFieldException e) { } catch (IllegalArgumentException e) { } catch (IllegalAccessException e) { } theErrReport += "Model/t="+Build.MODEL+"/n"; theErrReport += "Product/t="+Build.PRODUCT+"/n"; theErrReport += "App/t/t="+mApp.getPackageName()+", version "+pi.versionName+" (build "+pi.versionCode+")/n"; theErrReport += "Locale="+mApp.getResources().getConfiguration().locale.getDisplayName()+"/n"; theErrReport += "-----------------------------/n/n"; theErrReport += "END REPORT."; return theErrReport; } protected void saveDebugReport(String aReport) { //save report to file try { FileOutputStream theFile = mApp.openFileOutput(ExceptionReportFilename, Context.MODE_PRIVATE); theFile.write(aReport.getBytes()); theFile.close(); } catch(IOException ioe) { //error during error report needs to be ignored, do not wish to start infinite loop } } public void sendDebugReportToAuthor() { String theLine = ""; String theTrace = ""; try { BufferedReader theReader = new BufferedReader( new InputStreamReader(mApp.openFileInput(ExceptionReportFilename))); while ((theLine = theReader.readLine())!=null) { theTrace += theLine+"/n"; } if (sendDebugReportToAuthor(theTrace)) { mApp.deleteFile(ExceptionReportFilename); } } catch (FileNotFoundException eFnf) { // nothing to do } catch(IOException eIo) { // not going to report } } public Boolean sendDebugReportToAuthor(String aReport) { if (aReport!=null) { Intent theIntent = new Intent(Intent.ACTION_SEND); String theSubject = mApp.getTitle()+" "+MSG_SUBJECT_TAG; String theBody = "/n"+MSG_BODY+"/n/n"+aReport+"/n/n"; theIntent.putExtra(Intent.EXTRA_EMAIL,new String[] {MSG_SENDTO}); theIntent.putExtra(Intent.EXTRA_TEXT, theBody); theIntent.putExtra(Intent.EXTRA_SUBJECT, theSubject); theIntent.setType("message/rfc822"); Boolean hasSendRecipients = (mApp.getPackageManager().queryIntentActivities(theIntent,0).size()>0); if (hasSendRecipients) { mApp.startActivity(theIntent); return true; } else { return false; } } else { return true; } } @Override public void run() { sendDebugReportToAuthor(); } public void submit(Throwable e) { String theErrReport = getDebugReport(e); saveDebugReport(theErrReport); //try to send file contents via email (need to do so via the UI thread) mApp.runOnUiThread(this); } }