一人開発でつまづいたときの処方箋

DroidKaigi 2020で発表予定だった資料です。残念ながら中止となってしまったので、ブログに発表内容を書き下ろしてあります。
https://androhi.hatenablog.com/entry/2020/07/10/122254

Transcript

1. Ұਓ։ൃͰͭ·͍ͮͨ ͱ͖ͷॲํᝦ %SPJE,BJHJ
   
   
   Լ઒
   ܟ߂
2. ΞδΣϯμ w ࣗݾ঺հ
   w Ϗϧυ͕௨Βͳ͍ͱ͖ͷॲํͤΜ
   w ΞϓϦ͕Ϋϥογϡ͢Δͱ͖ͷॲํͤΜ
   w ΞϓϦͷධՁ্͕͕Βͳ͍ͱ͖ͷॲํͤΜ
3. ࣗݾ঺հ w ॴଐ
   גࣜձࣾετϥΠϓσύʔτϝϯτ
   w "OESPJEΞϓϦ։ൃ
   TNBSCZ
   w ۀ຿ҕୗ
   :QFSגࣜձࣾ
   w 3FBDU/BUJWFΞϓϦ։ൃ
   0,*11"
   w 5XJUUFS
   !BOESPIJ
4. ঱ঢ়̍
   Ϗϧυ͕௨Βͳ͍
5. JNQPSUΛਖ਼͘͠هड़͢Δ ༻๏ɿ"VUP
   *NQPSUઃఆ ༻ྔɿ"OESPJE4UVEJPΠϯετʔϧޙॳճ ࣗಈੜ੒ίʔυͷ࠶ੜ੒ ༻๏ɿ1SPKFDUͷ$MFBOͱ#VJME ༻ྔɿϒϥϯνΛ੾Γସ͑ͨޙ ͍Ζ͍ΖͳΩϟογϡΛ࡟আ͢Δ ༻๏ɿΩϟογϡΫϦΞ ༻ྔɿݪҼෆ໌ͷϏϧυΤϥʔ͕ൃੜͨ࣌͠ ॲɹํɹͤɹΜ
6. "VUP
   *NQPSUઃఆ
7. ݴޠ͝ͱʹ"VUP
   *NQPSUͷ
   ৼΔ෣͍ΛઃఆՄೳ
8. "EE
   VOBNCJHVPVT
   JNQPSUT
   PO
   UIF
   qZ ᶃ৽͍͠Ϋϥε౳Λೖྗͨ͠ࡍʹɺ࠷దͳJNQPSUจΛ௥Ճͯ͘͠ΕΔ
   ᶄJNQPSUର৅͕໌֬ͳ৔߹ͷΈɺࣗಈͰJNQPSUจΛૠೖ͢Δ
9. 0QUJNJ[F
   JNQPSUT
   PO
   UIF
   qZ ᶃϑΝΠϧ಺શମͷJNQPSUΛ࠷దԽͯ͘͠ΕΔ
   ᶄϑΝΠϧ಺ͷෆཁͳJNQPSUจ΍هड़ҐஔͳͲ΋ௐ੔ͯ͘͠ΕΔ
   ᶅखಈͰߦ͏ํ๏΋͋Δɻ$PEF
   
   0QUJNJ[F
   *NQPSUT
   $OU 0QU 0 ˞
   ศརͳ൓໘ɺ๬·ͳ͍มߋ΋ൃੜ͢ΔՄೳੑ͕͋ΔͷͰɺࣗಈͱ खಈΛ͏·͘࢖͍෼͚Δඞཁ͕͋Γ·͢
10. IUUQTXXXKFUCSBJOTDPNIFMQJEFBDSFBUJOHBOEPQUJNJ[JOH JNQPSUTIUNM TFDUJPO8JOEPXT$SFBUJOH@BOE@0QUJNJ[JOH@*NQPSUTYNM *OUFMMJ+
    *%&"ͷ"VUP*NQPSUʹؔ͢Δϔϧϓ
11. 1SPKFDUͷ
    $MFBOͱ#VJME
12. /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ
13. ࣗಈੜ੒͞ΕΔιʔείʔυ (MJEF΍%BHHFSͳͲͳͲʜʢ!(MJEF.PEVMF
    !$PNQPOFOU
14. ௨ৗCVJMEσΟϨΫτϦ͸(JU؅ཧԽʹ͸ஔ͔ͳ͍ͨΊɺϒϥϯνΛ੾Γସ͑ͯ࡞ۀ͠ ͨ৔߹ʹɺࣗಈੜ੒͞Εͨιʔείʔυͷ಺༰͕Ϛον͠ͳ͍έʔε͕ى͜Δɻ ͳͥʁ … local.properties *.keystore *.DS_Store *.aab proguard-project.txt captures/** **/.gradle **/.settings **/build .gradle … HJUJHOPSF
15. w $MFBO
    1SPKFDU
    
    #VJME
    
    શͯͷதؒϏϧυϑΝΠϧͱΩϟογϡϏϧυϑΝΠϧΛ࡟আ͢Δ
    w 3FCVJME
    1SPKFDU
    
    $MFBO
    1SPKFDUͨ͠ޙɺ"1,Λੜ੒͢Δ ղܾํ๏
16. ΩϟογϡΫϦΞ
    
    DMFBO#VJME$BDIF
17. ls -l ~/.android/build-cache/ total 0 drwxr-xr-x 4 shimokawa staff 128 2 11 12:57 3.5.1 -rw-r--r-- 1 shimokawa staff 0 2 11 12:57 3.5.1.lock "OESPJE
    (SBEMF
    1MVHJO͕ੜ੒͢ΔϏϧυΩϟογϡ ˞ࠓ͸"OESPJE
    QMVHJOͷόʔδϣϯ͝ͱʹσΟϨΫτϦΛ࡞ΔͬΆ͍
18. શͯͷϏϧυΩϟογϡΛ࡟আ͢Δ ./gradlew cleanBuildCache ls -l total 0 -rw-r--r-- 1 shimokawa staff 0 2 11 12:57 3.5.1.lock ˞IUUQTEFWFMPQFSBOESPJEDPNTUVEJPCVJMECVJMEDBDIF IMKB
19. ΩϟογϡΫϦΞ
    
    *OWBMJEBUF
    DBDIF
    BOE
    SFTUBSU
20. ϏϧυΩϟογϡͷ࡟আͰ΋ղܾग़དྷͳ͍৔߹ͷɺ࠷ऴखஈͱͯ͠ࢼ͢΂͖ΞΫγϣϯ ͳͥ࠷ऴखஈͳͷ͔ʁ શͯͷϩʔΧϧΩϟογϡΛ࡟আͯ͠͠·͏ͨΊɺ
    ࣍ʹϓϩδΣΫτΛ։͍ͨͱ͖΍ॳճϏϧυʹ͕͔͔࣌ؒΔ શͯͷϩʔΧϧώετϦʔ͕࡟আ͞Ειʔείʔυͷมߋཤྺ͕ࣦΘΕͯ͠͏ͨΊɺ
    ಛఆͷঢ়ଶʹϩʔϧόοΫग़དྷͳ͘ͳͬͯ͠·͏ *OWBMJEBUF
    DBDIF
    BOE
    SFTUBSUͱ͸ʁ
21. *OUFMMJ+
    *%&"ͷΩϟογϡΫϦΞʹؔ͢Δϔϧϓ IUUQTXXXKFUCSBJOTDPNIFMQJEFBXPSLJOHXJUI QSPKFDUTIUNMJOWBMJEBUFDBDIF ˞ϏϧυΩϟογϡͱ͔Ͱ͸ແ͍ɺ༷ʑͳϩʔΧϧΩϟογϡΛ࡟আ͍ͯ͠ΔΒ͍͠
22. ঱ঢ়̎
    ΞϓϦ͕Ϋϥογϡ͢Δ
23. ݪҼΛ୳Δ ༻๏ɿ4UBDL
    5SBDFΛ෼ղͯ͠ಡΈղ͘ ༻ྔɿΫϥογϡ͕खݩͰ࠶ݱग़དྷΔͱ͖ ղܾͷώϯτΛूΊΔ ༻๏ɿྨࣅέʔεͷ*TTVFΛ୳͢ ༻ྔɿࣗྗͰղܾग़དྷΔ໨ॲཱ͕ͨͳ͍ͱ͖ ॲɹํɹͤɹΜ
24. 4UBDL
    5SBDFΛ෼ղͯ͠ಡΈղ͘
25. 2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF
26. 2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF
27. 2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF
28. 2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF
29. 2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF
30. 2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF
31. 2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF 3FHJTUFS"DUJWJUZKBWBͷߦ໨Ͱ
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32. 2020-02-11 14:38:56.248 18143-18143/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 18143 android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@1a76d12 is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:798) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:329) at androidx.appcompat.app.AlertDialog$Builder.show(AlertDialog.java:1009) at jp.smarby.activities.landing.RegisterActivity$3.run(RegisterActivity.java:300) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) ࢖༻͍ͯ͠Δ$POUFYU͕ద੾Ͱͳ͔ͬͨ৔߹ͷ4UBDL5SBDF
33. 2020-02-11 14:38:56.248 18143-18143/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 18143 android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@1a76d12 is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:798) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:329) at androidx.appcompat.app.AlertDialog$Builder.show(AlertDialog.java:1009) at jp.smarby.activities.landing.RegisterActivity$3.run(RegisterActivity.java:300) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) ࢖༻͍ͯ͠Δ$POUFYU͕ద੾Ͱͳ͔ͬͨ৔߹ͷ4UBDL5SBDF
34. 2020-02-11 14:38:56.248 18143-18143/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 18143 android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@1a76d12 is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:798) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:329) at androidx.appcompat.app.AlertDialog$Builder.show(AlertDialog.java:1009) at jp.smarby.activities.landing.RegisterActivity$3.run(RegisterActivity.java:300) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) ࢖༻͍ͯ͠Δ$POUFYU͕ద੾Ͱͳ͔ͬͨ৔߹ͷ4UBDL5SBDF
35. 2020-02-11 14:38:56.248 18143-18143/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 18143 android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@1a76d12 is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:798) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:329) at androidx.appcompat.app.AlertDialog$Builder.show(AlertDialog.java:1009) at jp.smarby.activities.landing.RegisterActivity$3.run(RegisterActivity.java:300) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) ࢖༻͍ͯ͠Δ$POUFYU͕ద੾Ͱͳ͔ͬͨ৔߹ͷ4UBDL5SBDF
36. 2020-02-11 14:38:56.248 18143-18143/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID: 18143 android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@1a76d12 is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:798) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:329) at androidx.appcompat.app.AlertDialog$Builder.show(AlertDialog.java:1009) at jp.smarby.activities.landing.RegisterActivity$3.run(RegisterActivity.java:300) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) ࢖༻͍ͯ͠Δ$POUFYU͕ద੾Ͱͳ͔ͬͨ৔߹ͷ4UBDL5SBDF 3FHJTUFS"DUJWJUZKBWBͷߦ໨Ͱ
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