Hand-made Crash Report of Android Library

http://connpass.com/event/20240/
How to implement crash report of Android-Library

Transcript

1. Hand-made CrashReport
   of
   Android Library
   potatotips #22
   @petitviolet
   

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2. About me
   • @petitviolet
   • Fringe81 Co., Ltd.
   • ޿ࠂSDKͷAndroid/iOS։ൃ
   • ࠷ۙ͸Scalaॻ͍ͯ·͢
   

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3. ΫϥογϡϨϙʔτ
   

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5. CrashReport
   • ΞϓϦέʔγϣϯ͕Ϋϥογϡͨ࣌͠ͷঢ়گ
   ΛϨϙʔτͱͯ͠ૹ৴
   • ୺຤ͷछྨ
   • OS
   • ελοΫτϨʔε
   • etc.
   

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6. crashlytics
   https://try.crashlytics.com/
   

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7. ACRA
   https://github.com/ACRA/acra
   

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8. Desire
   • ϥΠϒϥϦىҼͷΫϥογϡϩά΋ऩू͍ͨ͠
   • ΞϓϦͷΫϥογϡϩά͸ऩू͠ͳ͍
   • ͦΕ͸Crashlytics౳ʹ͓೚ͤ
   • ಠࣗͷσʔλ͕ཉ͍͠
   

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9. UncaughtException
   • (جຊతʹ)Ϋϥογϡ͢Δͱ͖ʹඈͿྫ֎
   • catch͞Εͳ͔ͬͨͷͰuncaught
   • ErrorͰ͸ͳ͘Exception
   

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10. UncaughtExceptionHandler
    • UncaughtExceptionΛͲ͏ѻ͏͔
    • σϑΥϧτͷಈ࡞͸
    getDefaultUncaughtExceptionHandler
    • Defaultͷಈ࡞Λյ͞ͳ͍ͨΊʹอଘ
    

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11. جຊ෦෼
    

    class MyUncaughtExceptionHandler implements Thread.UncaughtExceptionHandler {

    private static final String PACKAGE_NAME = BuildConfig.APPLICATION_ID;

    

    private final Thread.UncaughtExceptionHandler mDefaultHandler;

    private WeakReference mContext;

    volatile private static boolean sCrashing = false;

    

    public MyUncaughtExceptionHandler(Context context) {

    mContext = new WeakReference<>(context.getApplicationContext());

    mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();

    }

    }
    

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12. جຊ෦෼
    

    class MyUncaughtExceptionHandler implements Thread.UncaughtExceptionHandler {

    private static final String PACKAGE_NAME = BuildConfig.APPLICATION_ID;

    

    private final Thread.UncaughtExceptionHandler mDefaultHandler;

    private WeakReference mContext;

    volatile private static boolean sCrashing = false;

    

    public MyUncaughtExceptionHandler(Context context) {

    mContext = new WeakReference<>(context.getApplicationContext());

    mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();

    }

    }
    UncaughtExceptionHandlerΛܧঝ
    

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13. جຊ෦෼
    

    class MyUncaughtExceptionHandler implements Thread.UncaughtExceptionHandler {

    private static final String PACKAGE_NAME = BuildConfig.APPLICATION_ID;

    

    private final Thread.UncaughtExceptionHandler mDefaultHandler;

    private WeakReference mContext;

    volatile private static boolean sCrashing = false;

    

    public MyUncaughtExceptionHandler(Context context) {

    mContext = new WeakReference<>(context.getApplicationContext());

    mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();

    }

    }
    DefaultͷUncaughtExceptionHandlerΛอଘ
    UncaughtExceptionHandlerΛܧঝ
    

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14. جຊ෦෼
    @Override

    public void uncaughtException(final Thread thread, final Throwable ex) {

    if (sCrashing) {

    mDefaultHandler.uncaughtException(thread, ex);

    return;

    }

    sCrashing = true;

    StackTraceElement[] stackTraceElements = ex.getStackTrace();

    

    boolean inLibraryException = false;

    for (StackTraceElement stackTraceElement : stackTraceElements) {

    if (stackTraceElement.getClassName().contains(PACKAGE_NAME)) {

    inLibraryException = true;

    break;

    }

    }

    

    // ϥΠϒϥϦ಺ͰͷΫϥογϡͩͬͨ৔߹͸ϩάΛૹΔ

    if (inLibraryException) {

    try {

    sendCrashReport(ex);

    } catch (Exception e) {

    e.printStackTrace();

    }

    }

    

    // ϝΠϯεϨουͩͬͨ৔߹͸ࢮ͵͔͠ແ͍

    if (thread.getId() == Looper.getMainLooper().getThread().getId()
    || !inLibraryException) {

    mDefaultHandler.uncaughtException(thread, ex);

    }

    }
    

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15. @Override

    public void uncaughtException(final Thread thread, final Throwable ex) {

    if (sCrashing) {

    mDefaultHandler.uncaughtException(thread, ex);

    return;

    }

    sCrashing = true;

    StackTraceElement[] stackTraceElements = ex.getStackTrace();

    

    boolean inLibraryException = false;

    for (StackTraceElement stackTraceElement : stackTraceElements) {

    if (stackTraceElement.getClassName().contains(PACKAGE_NAME)) {

    inLibraryException = true;

    break;

    }

    }
    ͢ͰʹΫϥογϡͨ͠ޙͳΒࢮ͵
    

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16. @Override

    public void uncaughtException(final Thread thread, final Throwable ex) {

    if (sCrashing) {

    mDefaultHandler.uncaughtException(thread, ex);

    return;

    }

    sCrashing = true;

    StackTraceElement[] stackTraceElements = ex.getStackTrace();

    

    boolean inLibraryException = false;

    for (StackTraceElement stackTraceElement : stackTraceElements) {

    if (stackTraceElement.getClassName().contains(PACKAGE_NAME)) {

    inLibraryException = true;

    break;

    }

    }
    ͢ͰʹΫϥογϡͨ͠ޙͳΒࢮ͵
    Library಺ͷΫϥογϡ͔Ͳ͏͔൑ఆ
    

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17. // ϥΠϒϥϦ಺ͰͷΫϥογϡͩͬͨ৔߹͸ϩάΛૹΔ

    if (inLibraryException) {

    try {

    sendCrashReport(ex);

    } catch (Exception e) {

    e.printStackTrace();

    }

    }

    

    // ϝΠϯεϨουͩͬͨ৔߹͸ࢮ͵͔͠ແ͍

    if (thread.getId() == Looper.getMainLooper().getThread().getId()
    || !inLibraryException) {

    mDefaultHandler.uncaughtException(thread, ex);

    }

    }
    

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18. // ϥΠϒϥϦ಺ͰͷΫϥογϡͩͬͨ৔߹͸ϩάΛૹΔ

    if (inLibraryException) {

    try {

    sendCrashReport(ex);

    } catch (Exception e) {

    e.printStackTrace();

    }

    }

    

    // ϝΠϯεϨουͩͬͨ৔߹͸ࢮ͵͔͠ແ͍

    if (thread.getId() == Looper.getMainLooper().getThread().getId()
    || !inLibraryException) {

    mDefaultHandler.uncaughtException(thread, ex);

    }

    }
    Library಺ͷΫϥογϡͳΒϩάૹ৴
    

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19. // ϥΠϒϥϦ಺ͰͷΫϥογϡͩͬͨ৔߹͸ϩάΛૹΔ

    if (inLibraryException) {

    try {

    sendCrashReport(ex);

    } catch (Exception e) {

    e.printStackTrace();

    }

    }

    

    // ϝΠϯεϨουͩͬͨ৔߹͸ࢮ͵͔͠ແ͍

    if (thread.getId() == Looper.getMainLooper().getThread().getId()
    || !inLibraryException) {

    mDefaultHandler.uncaughtException(thread, ex);

    }

    }
    Library֎ͷΫϥογϡ͔UIεϨουͳΒࢮ͵
    Library಺ͷΫϥογϡͳΒϩάૹ৴
    

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20. جຊ෦෼
    @Override

    public void uncaughtException(final Thread thread, final Throwable ex) {

    if (sCrashing) {

    mDefaultHandler.uncaughtException(thread, ex);

    return;

    }

    sCrashing = true;

    StackTraceElement[] stackTraceElements = ex.getStackTrace();

    

    boolean inLibraryException = false;

    for (StackTraceElement stackTraceElement : stackTraceElements) {

    if (stackTraceElement.getClassName().contains(PACKAGE_NAME)) {

    inLibraryException = true;

    break;

    }

    }

    

    // ϥΠϒϥϦ಺ͰͷΫϥογϡͩͬͨ৔߹͸ϩάΛૹΔ

    if (inLibraryException) {

    try {

    sendCrashReport(ex);

    } catch (Exception e) {

    e.printStackTrace();

    }

    }

    

    // ϝΠϯεϨουͩͬͨ৔߹͸ࢮ͵͔͠ແ͍

    if (thread.getId() == Looper.getMainLooper().getThread().getId()
    || !inLibraryException) {

    mDefaultHandler.uncaughtException(thread, ex);

    }

    }
    Library಺ͷΫϥογϡ͔Ͳ͏͔൑ఆ
    Library಺ͷΫϥογϡͳΒϩάૹ৴
    Library֎ͷΫϥογϡ͔UIεϨουͳΒࢮ͵
    ͢ͰʹΫϥογϡͨ͠ޙͳΒࢮ͵
    

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21. େࣄͳ͜ͱ
    • ϥΠϒϥϦ΋ΫϥογϡϩάΈͯվળ
    • ΞϓϦͷअຐΛ͠ͳ͍
    • σϑΥϧτͷಈ࡞Λࡴ͞ͳ͍
    • ϑϦʔζͤ͞ͳ͍Α͏ʹ
    • ແݶΫϥογϡ͠ͳ͍Α͏ʹ؅ཧ
    • ໘౗Ͱ΋ϑϥά؅ཧ
    

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