Debugging: All you need to know (English Only)

My presentation at DroidKaigi 2024 ref: https://2024.droidkaigi.jp/timetable/694440/

For Android developer from beginner to intermediate level

The session abstraction is the following.

Debugging is mandatory for you to identify debugs, to support customers/stakeholders, to improve the development productivity and so on. And also, modern team development expects some debugging skills for individuals. However, standard team development processes like code-reviews and design documents would not approach to debug skill improvements.

In this way, debugging skills are mandatory for your teams but also need to learn them alone. This could be an obstacle for both beginners and experts. In particular, experts may lose opportunities to investigate/learn better debugging approaches if problems can be solved by classical ways that are familiar with them.

I will talk about debugging skills/techniques by using Android Studio (IDEA)'s built-in debugger, debug options, etc. Conditional breakpoints and coroutine debugging will be covered. You can learn them through sample codes shown in Android app development like Jetpack Compose stuff.

Keywords: Print debugging, debugger, coroutine debugging, breakpoints

Transcript

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   ,OPX Jumpei Matsuda @red_fat_daruma
2. 2 Jumpei Matsuda @red_fat_daruma Software Architect at DeployGate, Inc. Android App and SDK Development Gradle Plugin Development Development Productivity Engineering Rails App Development and more... .F https://deploygate.com
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4. Motivations for Debugging 4 1/10
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9. The Great Debugging Method 9 2/10
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17. Getting Started with Debugger Don't become a print debugging expert 17 3/10
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28. 28 How to use Debugger better Inspect and Interact with Apps 4/10
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37. 37 How to use Debugger better Configure Breakpoints 5/10
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60. w 6TF
    %FCVH
    DPNNBOE
    GSPN
    "OESPJE
    4UVEJP
    w "UUBDI
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    SVOOJOH
    EFCVHHBCMF
    QSPDFTT
    w 4VTQFOE
    PO
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    w (P
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    w -BVODI
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    "QQ
     60
61. w 6TF
    %FCVH
    DPNNBOE
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    4UVEJP
    w "UUBDI
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    SVOOJOH
    EFCVHHBCMF
    QSPDFTT
    w 4VTQFOE
    PO
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    MBVODI
    UP
    XBJU
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    EFCVHHFS
    w (P
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    %FWFMPQFS
    PQUJPOT
    w 4FMFDU
    EFCVH
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    PO
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    w -BVODI
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    w 8BJU
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    "QQ
     61
62. w 6TF
    %FCVH
    DPNNBOE
    GSPN
    "OESPJE
    4UVEJP
    w "UUBDI
    B
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    SVOOJOH
    EFCVHHBCMF
    QSPDFTT
    w 4VTQFOE
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    MBVODI
    UP
    XBJU
    GPS
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    EFCVHHFS
    w 8BJU
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    w 3FRVJSFE
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    "QQ
     62
63. Other platforms 63 9/10
64. w +BWB,PUMJO
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    XPSLT
    SFHBSEMFTT
    PG
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    GSBNFXPSL
    w "U
    MFBTU
    #SFBLQPJOUT
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    JT
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    w /05&
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    LOPXO
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    w "QQT
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    android:debuggable=true
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65. w +7.
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    w %BSU
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    %FCVHHFS
    FUD
    w /%,
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    w .PTU
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66. Wrap up 66 10/10
67. w ✅
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    w ✅
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    w ✅
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    w ✅
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    w ✅
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    MPU
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    w ❌
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68. 4VNNBSZ w $PSPVUJOF
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    w %FCVHHFS
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    android:debuggable=true
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    MJGF 68
69. %FCVHHJOH
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    ,OPX Jumpei Matsuda @red_fat_daruma 5IBOL
    ZPV
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     23
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70. (PPE
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    SFBE w %FCVHHJOH
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    w IUUQTEFWFMPQFSBOESPJEDPNSFGFSFODFBOESPJEPT%FCVH
    w IUUQTEFWFMPQFSBOESPJEDPNQSJWBDZBOETFDVSJUZSJTLTBOESPJEEFCVHHBCMF
    w $PNQPTF
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    w $PSPVUJOF
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    w IUUQTLPUMJODPOGDPNUBMLT
    w IUUQTLPUMJOMBOHPSHEPDTEFCVHDPSPVUJOFTXJUIJEFBIUNM 70