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3Y+BWBֶशͷϕετϓϥΫςΟεͬΆ͍ͷ
2015/03/17(Ր) ീ
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3Y+BWBJTUPPIVHF
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4UFQCZTUFQMFBSOJOH
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4UFQCZTUFQBQQMJDBUJPO
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w ֓೦
w ֓೦ͷ+BWBԽ
w ίϨΫγϣϯૢ࡞
w 1SPNJTF
w -JGU
w 4VCKFDU
3Y+BWB͜ͷॱͰֶʂʁ
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3Y+BWBͱ
https://rx.codeplex.com/
https://github.com/ReactiveX/RxJava
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w 3FBDUJWF&YUFOTJPOT 3Y
ɺ؍ଌՄೳ
PCTFSWBCMF
ͳγʔέϯεͱ-*/2ελΠϧͷΫ
ΤϦԋࢉࢠΛͬͯɺඇಉظͳΠϕϯτϕʔεͷϓ
ϩάϥϜΛ߹͢ΔϥΠϒϥϦͰ͢ɻ3YΛ͏ͱɺ
։ൃऀඇಉظσʔλετϦʔϜΛ0CTFSWBCMF
Ͱද͠ɺඇಉظσʔλετϦʔϜʹର͢ΔΫΤϦ
ʹ-*/2ԋࢉࢠΛ͍ɺඇಉظετϦʔϜͷฒߦ
ੑΛ4DIFEVMFSͰύϥϝλԽ͠·͢ɻ؆୯ʹݴ͑
ɺ3Y0CTFSWBCMF-*/24DIFEVMFSͰ͢ɻ
3Y+BWBͱ
http://okapies.hateblo.jp/entry/2015/03/04/031148
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w 0CTFSWBCMFͱ࣌ؒUʹྲྀΕΔ4USFBNͰ͋Δ
֓೦
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w 0CTFSWBCMFͱ࣌ؒUʹྲྀΕΔ4USFBNͰ͋Δ
֓೦
Event Array
Async
ͲΕ࣌ؒUʹྲྀΕΔ4USFBNͱͯ͠ߟ͑Δ
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w &WFOUϢʔβ͕ૢ࡞ͨ࣌͠ U
ͳͲʹൃՐ͢ΔΠϕϯτ
w "TZODඇಉظॲཧ͕ྃ U
ͨ͠ΒൃՐ͢ΔΠϕϯτ
w "SSBZ֤ཁૉͷִؒ U
͕ݶΓͳ͘ʹ͍ۙΠϕϯτ
֓೦
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֓೦
ؔΛద༻
Ͱ͖Δ
มɺ߹ɺ࿈݁ɺϑΟϧλɺࠐΈɺಉظɺඇಉظ
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֓೦ͷ+BWBԽ
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֓೦ͷ+BWBԽ
࣌ؒUΛྲྀΕΔJOUFHFSͷTUSFBN
0CTFSWBCMF*OUFHFSDPVOUFSDSFBUF$PVOUFS
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֓೦ͷ+BWBԽ
࣌ؒUΛྲྀΕΔJOUFHFSͷTUSFBN
0CTFSWBCMF*OUFHFSDPVOUFSDSFBUF$PVOUFS
1 2 3 4
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֓೦ͷ+BWBԽ
؍ଌ͢Δ
DPVOUFSTVCTDSJCF OFX"DUJPO*OUFHFS
\
!0WFSSJEF
QVCMJDWPJEDBMM *OUFHFSJOUFHFS
\
EPTPNFUIJOH
^
^
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֓೦ͷ+BWBԽ
؍ଌ͢Δ
DPVOUFSTVCTDSJCF OFX"DUJPO*OUFHFS
\
!0WFSSJEF
QVCMJDWPJEDBMM *OUFHFSJOUFHFS
\
EPTPNFUIJOH
^
^
1 2 3 4
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֓೦ͷ+BWBԽ
࣌ؒUΛྲྀΕΔ5PVDI&WFOUͷTUSFBN
0CTFSWBCMF5PVDI&WFOUUPVDIFTWJFXUPVDIFT
Down Move Move Up
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֓೦ͷ+BWBԽ
ؔΛద༻͢Δ
0CTFSWBCMF5PVDI&WFOUUPVDI&WFOU.PWF
UPVDIFTpMUFS OFX'VOD5PVDI&WFOU
#PPMFBO
\
!0WFSSJEF
QVCMJD#PPMFBODBMM 5PVDI&WFOUUPVDI&WFOU
\
SFUVSOUPVDI&WFOUUZQF
.PWF
^
^
Down Move Move Up
Move Move
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֓೦ͷ+BWBԽ
ؔΛద༻͢Δ
0CTFSWBCMF4USJOHUPVDI&WFOU-PH
UPVDIFTNBQ OFX'VOD5PVDI&WFOU
4USJOH
\
!0WFSSJEF
QVCMJD4USJOHDBMM 5PVDI&WFOUUPVDI&WFOU
\
SFUVSOUPVDI&WFOUUP4USJOH
^
^
Down Move Move Up
“Move” “Move”
“Down” “Up”
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0CTFSWBCMFͷϊϦΘ͔ͬͨɻ
͡Ό͋۩ମతʹԿʹ͏ͷʁ
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w 0CTFSWBCMFϦονͳ*UFSBUPSͰ͋Δɻ
ίϨΫγϣϯૢ࡞
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w 0CTFSWBCMF3FDJQFSFDJQFT0CTFSWBCMFGSPN SFDJQF-JTU
w 0CTFSWBCMF*OUFHFSDPVOUFS0CTFSWBCMFSBOHF
w
ίϨΫγϣϯΛ0CTFSWBCMFԽ
QVCMJDDMBTT999"EBQUFSFYUFOET"SSBZ"EBQUFS5\
QVCMJD0CTFSWBCMF5JUFNT
\
SFUVSO0CTFSWBCMF
SBOHF
HFU$PVOU
NBQ JHFU*UFN J
XJOEPX HFU$PVOU
UP#MPDLJOH
TJOHMF
^
^
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͋ͱԿͰΓ์
0CTFSWBCMF3FDJQFIJTUPSZ0CTFSWBCMFGSPN IJTUPSZ-JTU
0CTFSWBCMF4USJOHJETIJTUPSZ
NBQ OFX'VOD3FDJQF
-POH
\
!0WFSSJEF
QVCMJD-POHDBMM 3FDJQFSFDJQF
\
SFUVSOSFDJQFHFU*E
^
^
MJNJU
SFEVDF
OFX'VOD4USJOH
-POH
4USJOH
\
!0WFSSJEF
QVCMJD4USJOHDBMM 4USJOHT
-POHJE
\
SFUVSO TOVMM
JEUP4USJOH
^
^
4USJOHJET4USJETUP#MPDLJOH
TJOHMF
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͋ͱԿͰΓ์
0CTFSWBCMF3FDJQFIJTUPSZ0CTFSWBCMFGSPN IJTUPSZ-JTU
0CTFSWBCMF4USJOHJETIJTUPSZ
NBQ OFX'VOD3FDJQF
-POH
\
!0WFSSJEF
QVCMJD-POHDBMM 3FDJQFSFDJQF
\
SFUVSOSFDJQFHFU*E
^
^
MJNJU
SFEVDF
OFX'VOD4USJOH
-POH
4USJOH
\
!0WFSSJEF
QVCMJD4USJOHDBMM 4USJOHT
-POHJE
\
SFUVSO TOVMM
JEUP4USJOH
^
^
4USJOHJET4USJETUP#MPDLJOH
TJOHMF
3FDJQF-POH
࠷େ݅
l
zͰ࿈݁
ΛऔΓग़͢
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ίϨΫγϣϯૢ࡞ͰϦεΫֶश
w ίϨΫγϣϯૢ࡞ʹద༻ͯ͠ϦεΫͰಋೖɻҰ୴
3Y+BWBਥԽ࣮ͯ͠গͳ͍ɻ
w ౷Ұతͳه๏ΛֶͿɺద༻ՕॴΛݕ౼͢Δ
w Մಡੑͷߴ͍3Y+BWBίʔυΛࡧ͢Δ
ྫ͑લทͷSFEVDFDPNNPOTMBOHͷ
4USJOH6UJMTKPJOΛͬͨํ͕Α͘ͳ͍ʁͱ͔ͳΜͱ͔
w ςετίʔυॻ͖Ͱࢼ͢ͱΔ
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׳Ε͖ͯͨͧɺͬͱ࣮༻ੑΛʂ
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w 0CTFSWBCMF1SPNJTFͰ͋Δ
1SPNJTF
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1SPNJTFͭͷΛ࣋ͭ
0CTFSWBCMF
http://ninjinkun.hatenablog.com/entry/introrxja
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4DIFEVMFSͰεϨουΛม͑Δ
result
Observer
5ISFBE
.BJO5ISFBE
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&SSPSIBOEMJOH
Observer
5ISFBE
.BJO5ISFBE
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ͭͷΛ࣋ͭ0CTFSWBCMFΛ࡞Δ
QVCMJD0CTFSWBCMF3FDJQFSFDJQF pOBMMPOHSFDJQF*E
\
SFUVSO0CTFSWBCMFDSFBUF OFX0CTFSWBCMF0O4VCTDSJCF3FDJQF
\
!0WFSSJEF
QVCMJDWPJEDBMM 4VCTDSJCFS TVQFS3FDJQFTVCTDSJCFS
\
USZ\
3FDJQFSFDJQFMPBE3FDJQF SFDJQF*E
TVCTDSJCFSPO/FYU SFDJQF
TVCTDSJCFSPO$PNQMFUFE
^DBUDI &YDFQUJPOF
\
TVCTDSJCFSPO&SSPS F
^
^
^
^
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4DIFEVMFSΛηοτ͢Δ
0CTFSWBCMF3FDJQFSFDJQF0CTFSWBCMFSFDJQF JE
SFDJQF0CTFSWBCMF
TVCTDSJCF0O 4DIFEVMFSTJP
PCTFSWF0O "OESPJE4DIFEVMFSTNBJO5ISFBE
0CTFSWBCMFͷॲཧεϨου
0CTFSWFSͷॲཧεϨου
˞"OESPJE4DIFEVMFST3Y"OESPJE͕ఏڙ͢ΔΫϥε
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ΤϥʔϋϯυϦϯά͢Δ
SFDJQF0CTFSWBCMFTVCTDSJCF
OFX"DUJPO3FDJQF
\
!0WFSSJEF
QVCMJDWPJEDBMM 3FDJQFSFDJQF
\
TVDDFTT
TIPX3FDJQF SFDJQF
^
^
OFX"DUJPO5ISPXBCMF
\
!0WFSSJEF
QVCMJDWPJEDBMM 5ISPXBCMFUISPXBCMF
\
FSSPS
TIPX&SSPS UISPXBCMF
^
^
OFX"DUJPO
\
!0WFSSJEF
QVCMJDWPJEDBMM
\
DPNQMFUF
IJEF1SPHSFTT
^
^
˞͜ΕΒ෦తʹ4VCTDSJCFSʹϥοϓ͞Ε͍ͯΔɻ4VCTDSJCFSΛ͍͍͕ͯ͠MBNCEBΛߟ͑Δͱݸผͷํ͕͍͍ͱࢥ͏
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͞Β"TZOD5BTL
http://qiita.com/KeithYokoma/items/1120ea1aacd6841d4e4d
༁ʳ"TZOD5BTLͱ"TZOD5BTL-PBEFSΛSY0CTFSWBCMFʹஔ͖͑Δ3Y+BWB"OESPJE1BUUFSOT
4VCTDSJQUJPOTVCTDSJQUJPO4VCTDSJQUJPOTFNQUZ
!0WFSSJEF
QSPUFDUFEWPJEPO$SFBUF
\
TVCTDSJQUJPO"OESPJE0CTFSWBCMF UIJT
SFDJQF JE
TVCTDSJCF0O 4DIFEVMFSTJP
NBQ
TVCTDSJCF
^
!0WFSSJEF
QSPUFDUFEWPJEPO%FTUSPZ
\
TVQFSPO%FTUSPZ
TVCTDSJQUJPOVOTVCTDSJCF
^
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1SPNJTFԽͰ͞ΑͳΒ"TZOD5BTL
w ͭͷΛ࣋ͭ0CTFSWBCMFΛ࡞Δ
w 4DIFEVMFSͰ࣮ߦεϨουΛઃఆ͢Δ
w ΤϥʔϋϯυϦϯάΛ͢Δ
w "TZOD5BTLͱஔ͖͑Δ
w ςετ؆୯ʹॻ͚ΔΑ
IUUQTZTZBHJIBUFOBCMPHDPNFOUSZ
5FTU4VCTDSJCFSΛͬͯ3Y+BWBͷTVCTDSJCFͷςετΛॻ͘
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w ͯ͢0QFSBUPSͷ࿈݁Ͱ͋Δ
-JGU
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NBQ
Recipe
“Recipe”
NBQ
3FDJQFΛ4USJOHʹม͢Δɻ
෦ͰԿ͕ى͖͍ͯΔʁ
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QVCMJDpOBM30CTFSWBCMF3NBQ 'VOD TVQFS5
FYUFOET3GVOD
\
SFUVSOMJGU OFX0QFSBUPS.BQ GVOD
^
NBQ
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QVCMJDpOBM30CTFSWBCMF3MJGU pOBM0QFSBUPS FYUFOET3
TVQFS5MJGU
\
SFUVSOOFX0CTFSWBCMF OFX0O4VCTDSJCF
\
QVCMJDWPJEDBMM 4VCTDSJCFS TVQFS3P
\
USZ\
4VCTDSJCFS TVQFS5TU 4VCTDSJCFS
0CTFSWBCMFIPPLPO-JGU MJGU
DBMM P
USZ\
TUPO4UBSU
0CTFSWBCMFUIJTPO4VCTDSJCFDBMM TU
^
DBUDI 5ISPXBCMFF
\
ུ
TUPO&SSPS F
^
^
DBUDI 5ISPXBCMFF
\
ུ
PPO&SSPS F
^
^
^
^
MJGU
৽͍͠0CTFSWBCMFʻ3ʼΛ࡞ͬ
ͯฦ͍ͯ͠Δɻ0CTFSWBCMF5
ͷߪಡऀͱͯ͠ৼΔ͏
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MJGU
Recipe
“Recipe”
MJGU OFX0QFSBUPS.BQ GVOD
4VCTDSJCFS3FDJQFʹݟ͑Δ
0CTFSWBCMF4USJOHʹݟ͑Δ
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QVCMJDpOBMDMBTT0QFSBUPS.BQ5
3JNQMFNFOUT0CTFSWBCMF0QFSBUPS3
5\
ུ
QVCMJD4VCTDSJCFS TVQFS5DBMM pOBM4VCTDSJCFS TVQFS3P
\
SFUVSOOFX4VCTDSJCFS P
\
QVCMJDWPJEPO$PNQMFUFE
\
PPO$PNQMFUFE
^
QVCMJDWPJEPO&SSPS 5ISPXBCMFF
\
PPO&SSPS F
^
QVCMJDWPJEPO/FYU 5U
\
USZ\
PPO/FYU 0QFSBUPS.BQUIJTUSBOTGPSNFSDBMM U
^
DBUDI 5ISPXBCMFF
\
&YDFQUJPOTUISPX*G'BUBM F
PO&SSPS 0O&SSPS5ISPXBCMFBEE7BMVF"T-BTU$BVTF F
U
^
^
^
^
^
0QFSBUPS.BQ
'VOD5
3Λద༻ͯ͠
4VCTDSJCFS3PO/FYU
ʹ͠
͍ͯΔɻ
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TVCTDSJCF0O
QVCMJDpOBM0CTFSWBCMF5TVCTDSJCF0O 4DIFEVMFSTDIFEVMFS
\
JG UIJTJOTUBODFPG4DBMBS4ZODISPOPVT0CTFSWBCMF
\
SFUVSO 4DBMBS4ZODISPOPVT0CTFSWBCMF5
UIJT
TDBMBS4DIFEVMF0O TDIFEVMFS
^
SFUVSOOFTU
MJGU OFX0QFSBUPS4VCTDSJCF0O5 TDIFEVMFS
^
͋ʂ
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TVCTDSJCF0O
OFTU
Recipe
MJGU OFX0QFSBUPS4VCTDSJCF0O TDIFEVMFS
TDIFEVMFS͕ࢦఆͨ͠εϨου
ͰTVCTDSJCF
͢Δ
Recipe
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Slide 44 text
$VTUPN0QFSBUPS
QVCMJDJOUFSGBDF0QFSBUPS3
5
FYUFOET'VOD4VCTDSJCFS TVQFS3
4VCTDSJCFS TVQFS5\
^
ͨͩͷ'VOD
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$VTUPN0QFSBUPS
OFX0CTFSWBCMF0QFSBUPS4USJOH
*OUFHFS
\
!0WFSSJEF
QVCMJD4VCTDSJCFS TVQFS*OUFHFSDBMM 4VCTDSJCFS TVQFS4USJOHTVCTDSJCFS
\
SFUVSOOFX4VCTDSJCFS*OUFHFS
\
!0WFSSJEF
QVCMJDWPJEPO$PNQMFUFE
\
TVCTDSJCFSPO$PNQMFUFE
^
!0WFSSJEF
QVCMJDWPJEPO&SSPS 5ISPXBCMFUISPXBCMF
\
TVCTDSJCFSPO&SSPS UISPXBCMF
^
!0WFSSJEF
QVCMJDWPJEPO/FYU *OUFHFSJOUFHFS
\
TVCTDSJCFSPO/FYU JOUFHFSUP4USJOH
^
^
^
^
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4FSJBM0QFSBUPS
QVCMJDDMBTT4FSJBM0QFSBUPS3
5JNQMFNFOUT0CTFSWBCMF0QFSBUPS3
5\
"DUJPO4VCTDSJCFS TVQFS3
5UIFO
5OFYU
4FSJBM0QFSBUPS "DUJPO4VCTDSJCFS TVQFS3
5UIFO
\
UIJTUIFOUIFO
^
!0WFSSJEF
QVCMJD4VCTDSJCFS TVQFS5DBMM pOBM4VCTDSJCFS TVQFS3TVCTDSJCFS
\
SFUVSOOFX4VCTDSJCFS5
\
!0WFSSJEF
QVCMJDWPJEPO$PNQMFUFE
\
UIFODBMM TVCTDSJCFS
OFYU
^
!0WFSSJEF
QVCMJDWPJEPO&SSPS 5ISPXBCMFUISPXBCMF
\
TVCTDSJCFSPO&SSPS UISPXBCMF
^
!0WFSSJEF
QVCMJDWPJEPO/FYU 5U
\
OFYUU
^
^
^
^
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4FSJBM0QFSBUPS
BQJVTFS
0CTFSWBCMF6TFS
MJGU OFX4FSJBM0QFSBUPS
OFX"DUJPO4VCTDSJCFS TVQFS-JTU'FFE
6TFS
\
!0WFSSJEF
QVCMJDWPJEDBMM 4VCTDSJCFS TVQFS-JTU'FFETVCTDSJCFS
6TFSVTFS
\
BQJVTFS'FFE VTFS
TVCTDSJCF TVCTDSJCFS
^
^
TVCTDSJCF OFX"DUJPO-JTU'FFE
\
!0WFSSJEF
QVCMJDWPJEDBMM -JTU'FFEGFFE-JTU
\
EPTPNFUIJOH
^
^
0CTFSWBCMF6TFSͷऔಘΛͬ
ͯɺVTFS'FFEΛऔΓʹߦ͖ɺ
-JTU'FFEΛऔಘ͢Δɻ
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NFSHF
QVCMJDTUBUJDpOBM50CTFSWBCMF5NFSHF
0CTFSWBCMF FYUFOET0CTFSWBCMF FYUFOET5TPVSDF
\
SFUVSOTPVSDFMJGU OFX0QFSBUPS.FSHF
^
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NFSHF
࣌ؒ࣠͝ͱϚʔδɻͭ·ΓύϥϨϧ
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Slide 50 text
NFSHFΛͬͨฒྻϦΫΤετ
-JTU0CTFSWBCMF#PPMFBOPCTFSWBCMFTOFX"SSBZ-JTU
PCTFSWBCMFTBEE SFDJQF
0CTFSWBCMF3FDJQF
EP0O/FYU OFX"DUJPO3FDJQF
\
!0WFSSJEF
QVCMJDWPJEDBMM 3FDJQFSFDJQF
\
TVDDFTT
^
^
JT&NQUZ
PCTFSWBCMFTBEE VTFS
0CTFSWBCMF6TFS
EP0O/FYU OFX"DUJPO6TFS
\
!0WFSSJEF
QVCMJDWPJEDBMM 6TFSVTFS
\
TVDDFTT
^
^
JT&NQUZ
0CTFSWBCMF#PPMFBOQBSBMMFM0CTFSWBCMFNFSHF PCTFSWBCMFT
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Slide 51 text
NFSHFΛͬͨฒྻϦΫΤετ
QBSBMMFMTVCTDSJCF
OFX"DUJPO#PPMFBO
\
!0WFSSJEF
QVCMJDWPJEDBMM #PPMFBOB#PPMFBO
\
શ෦ޭ
^
^
OFX"DUJPO5ISPXBCMF
\
!0WFSSJEF
QVCMJDWPJEDBMM 5ISPXBCMFUISPXBCMF
\
͍ͣΕ͔͕ࣦഊ
^
^
ύϥϨϧʹ"1*ୟ͍ͯͪ߹Θͤͱ͔
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Slide 52 text
w શ෦0QFSBUPSͷ࿈݁ͩɻڪΖ͘͠ෳࡶͳʜ
w ιʔεΛಡΉΜͩɻ
w ॊೈʹͳΜͰߏஙՄೳͳͷͰઃܭ͕͍͠
w ૬ஊ͍ͨ͠
શ෦0QFSBUPS
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w 4VCKFDU0CTFSWFSͰ͋Γ0CTFSWBCMFͰ͋Δ
4VCKFDU
Slide 54
Slide 54 text
w όΠύεͷΠϝʔδ͔ͳʔʁ
4VCKFDU
Recipe
“Recipe”
4VCKFDU
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w 3Y"OESPJE'SBNFXPSLͷ3Y"DUJWJUZ
-JGFDZDMF0CTFSWBCMF
w 4VCKFDUΛͬͨ-JTU7JFXͷՃಡΈࠐΈఆ
w &WFOU#VT
4VCKFDU
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Slide 56 text
Զͨͪͷઓ͍·ͩ࢝·͔ͬͨΓ
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Slide 57 text
UPCFDPOUJOVFE