public class CrashHandler implements Thread.UncaughtExceptionHandler {  private static final String TAG = "CrashHandler";  private static final boolean DEBUG = true;  //文件路徑  private static final String PATH = Environment.getExternalStorageDirectory().getPath() +File.separator+ "crash";  private static final String FILE_NAME = "crash";  private static final String FILE_NAME_SUFEIX = ".trace";  private static Thread.UncaughtExceptionHandler mDefaultCrashHandler;  private static CrashHandler mCrashHandler = new CrashHandler();  private Context mContext;  private CrashHandler() {  }  public static CrashHandler getInstance() {    return mCrashHandler;  }  public void init(Context context) {    mDefaultCrashHandler = Thread.getDefaultUncaughtExceptionHandler();    Thread.setDefaultUncaughtExceptionHandler(this);    mContext = context.getApplicationContext();  }  @Override  public void uncaughtException(Thread thread, Throwable ex) {    try {      //將文件寫入sd卡      writeToSDcard(ex);      //寫入后在這里可以進行上傳操作    } catch (IOException e) {      e.printStackTrace();    } catch (PackageManager.NameNotFoundException e) {      e.printStackTrace();    }    ex.printStackTrace();    //如果系統提供了默認異常處理就交給系統進行處理，否則自己進行處理。    if (mDefaultCrashHandler != null) {      mDefaultCrashHandler.uncaughtException(thread, ex);    } else {      Process.killProcess(Process.myPid());    }  }  //將異常寫入文件  private void writeToSDcard(Throwable ex) throws IOException, PackageManager.NameNotFoundException {    //如果沒有SD卡，直接返回    if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {      return;    }    File filedir = new File(PATH);    if (!filedir.exists()) {      filedir.mkdirs();    }    long currenttime = System.currentTimeMillis();    String time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(currenttime));    File exfile = new File(PATH +File.separator+FILE_NAME+time + FILE_NAME_SUFEIX);    PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(exfile)));    Log.e("錯誤日志文件路徑",""+exfile.getAbsolutePath());    pw.println(time);    PackageManager pm = mContext.getPackageManager();    PackageInfo pi = pm.getPackageInfo(mContext.getPackageName(), PackageManager.GET_ACTIVITIES);    //當前版本號    pw.println("App Version:" + pi.versionName + "_" + pi.versionCode);    //當前系統    pw.println("OS version:" + Build.VERSION.RELEASE + "_" + Build.VERSION.SDK_INT);    //制造商    pw.println("Vendor:" + Build.MANUFACTURER);    //手機型號    pw.println("Model:" + Build.MODEL);    //CPU架構    pw.println("CPU ABI:" + Build.CPU_ABI);    ex.printStackTrace(pw);    pw.close();  }}

public class BaseApplication extends Application {  @Override  public void onCreate() {    super.onCreate();    CrashHandler crashHandler=CrashHandler.getInstance();    crashHandler.init(this);  }}

 mButton.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View view) {        throw new RuntimeException("拋出一個異常");      }    });