Customize Error Message

Customize Error Message for Android

How to catch Uncaught Exception.

Transcript

1. Customize
   Error Message
   @magie_pooh
   shibuya.apk #16
   

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2. ࣗݾ঺հ
   ౻ాୖຏ
   @magie_pooh
   @magiepooh
   

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3. Customize
   Error Message
   @magie_pooh
   shibuya.apk #16
   

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4. Crash Reporting Tool
   • Crashlytics
   • Firebase Crash Reporting
   • Play Console
   

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5. Crash Reporting Tool
   • Crashlytics
   • Firebase Crash Reporting
   • Play Console
   

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7. ͜͜ΛΧελϚΠζ͍ͨ͠
   

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11. ফ͍ͨ͠
    

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12. private static Thread.UncaughtExceptionHandler defaultUEH;

    private static Thread.UncaughtExceptionHandler caughtExceptionHandler
    =

    new Thread.UncaughtExceptionHandler() {

    @TargetApi(Build.VERSION_CODES.KITKAT) @Override

    public void uncaughtException(Thread thread, Throwable
    throwable) {

    // do something
    defaultUEH.uncaughtException(thread, throwable);

    }

    };
    @Override public void onCreate() {

    super.onCreate();

    Fabric.with(this, new Crashlytics());

    defaultUEH = Thread.getDefaultUncaughtExceptionHandler();

    Thread.setDefaultUncaughtExceptionHandler(caughtExceptionHandler);

    }
    ApplicationΫϥε
    

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13. private static Thread.UncaughtExceptionHandler defaultUEH;

    private static Thread.UncaughtExceptionHandler caughtExceptionHandler
    =

    new Thread.UncaughtExceptionHandler() {

    @TargetApi(Build.VERSION_CODES.KITKAT) @Override

    public void uncaughtException(Thread thread, Throwable
    throwable) {

    // do something
    defaultUEH.uncaughtException(thread, throwable);

    }

    };
    @Override public void onCreate() {

    super.onCreate();

    Fabric.with(this, new Crashlytics());

    defaultUEH = Thread.getDefaultUncaughtExceptionHandler();

    Thread.setDefaultUncaughtExceptionHandler(caughtExceptionHandler);

    }
    ApplicationΫϥε
    

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14. private static Thread.UncaughtExceptionHandler defaultUEH;

    private static Thread.UncaughtExceptionHandler caughtExceptionHandler
    =

    new Thread.UncaughtExceptionHandler() {

    @TargetApi(Build.VERSION_CODES.KITKAT) @Override

    public void uncaughtException(Thread thread, Throwable
    throwable) {

    // do something
    defaultUEH.uncaughtException(thread, throwable);

    }

    };
    @Override public void onCreate() {

    super.onCreate();

    Fabric.with(this, new Crashlytics());

    defaultUEH = Thread.getDefaultUncaughtExceptionHandler();

    Thread.setDefaultUncaughtExceptionHandler(caughtExceptionHandler);

    }
    ApplicationΫϥε
    

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15. private static Thread.UncaughtExceptionHandler defaultUEH;

    private static Thread.UncaughtExceptionHandler caughtExceptionHandler
    =

    new Thread.UncaughtExceptionHandler() {

    @TargetApi(Build.VERSION_CODES.KITKAT) @Override

    public void uncaughtException(Thread thread, Throwable
    throwable) {

    // do something
    defaultUEH.uncaughtException(thread, throwable);

    }

    };
    @Override public void onCreate() {

    super.onCreate();

    Fabric.with(this, new Crashlytics());

    defaultUEH = Thread.getDefaultUncaughtExceptionHandler();

    Thread.setDefaultUncaughtExceptionHandler(caughtExceptionHandler);

    }
    ApplicationΫϥε
    

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16. private static Thread.UncaughtExceptionHandler defaultUEH;

    private static Thread.UncaughtExceptionHandler caughtExceptionHandler
    =

    new Thread.UncaughtExceptionHandler() {

    @TargetApi(Build.VERSION_CODES.KITKAT) @Override

    public void uncaughtException(Thread thread, Throwable
    throwable) {

    // do something
    defaultUEH.uncaughtException(thread, throwable);

    }

    };
    @Override public void onCreate() {

    super.onCreate();

    Fabric.with(this, new Crashlytics());

    defaultUEH = Thread.getDefaultUncaughtExceptionHandler();

    Thread.setDefaultUncaughtExceptionHandler(caughtExceptionHandler);

    }
    ApplicationΫϥε
    

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17. private static Thread.UncaughtExceptionHandler defaultUEH;

    private static Thread.UncaughtExceptionHandler caughtExceptionHandler
    =

    new Thread.UncaughtExceptionHandler() {

    @TargetApi(Build.VERSION_CODES.KITKAT) @Override

    public void uncaughtException(Thread thread, Throwable
    throwable) {

    // do something
    defaultUEH.uncaughtException(thread, throwable);

    }

    };
    @Override public void onCreate() {

    super.onCreate();

    Fabric.with(this, new Crashlytics());

    defaultUEH = Thread.getDefaultUncaughtExceptionHandler();

    Thread.setDefaultUncaughtExceptionHandler(caughtExceptionHandler);

    }
    ApplicationΫϥε
    

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18. Field field = Throwable.class
    .getDeclaredField("detailMessage");

    field.setAccessible(true);

    field.set(throwable, "");
    ExceptionͷϝοηʔδΛͻͨ͢Βফ͢
    

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19. ফ͑ͨʂʂʂ
    

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20. Crashlyticsͷ࢓૊Έ
    • Fabric.with(this, new Crashlytics());
    

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21. Crashlyticsͷ࢓૊Έ
    • Fabric.with(this, new Crashlytics());
    • CrashlyticsCore#onPreExecute()಺Ͱ
    CrashlyticsControllerΛੜ੒
    

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22. Crashlyticsͷ࢓૊Έ
    • Fabric.with(this, new Crashlytics());
    • CrashlyticsCore#onPreExecute()಺Ͱ
    CrashlyticsControllerΛੜ੒
    • CrashlyticsControllerΫϥεͰ
    CrashlyticsUncaughtExceptionHandlerΛੜ੒
    

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23. ·ͱΊ
    • UncaughtExceptionHandlerΛ࢖͑͹ΧελϚΠζͰ͖Δ
    • ଞͷCrash Reporting Tool͸ະௐࠪͳͷͰɺͲͳ͔ͨڭ͑
    ͍ͯͩ͘͞
    • Firebase Crash ReportingͰ͸ݸਓ৘ใʹؔΘΔ෦෼͸
    ʮREDACTED_PERSONAL_IDENTIFICATION_NUMBER
    ʯʹͳΔΒ͍͠ɻ୭͔ڭ͍͑ͯͩ͘͞
    

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