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大容量データのダウンロード戦略
misyobun
April 25, 2015
Technology
3
12k
大容量データのダウンロード戦略
2015 04/25 DroidKaigi
http://droidkaigi.github.io/
misyobun
April 25, 2015
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Transcript
େ༰ྔμϯϩʔυ ઓུ %SPJE,BJHJ !NJTZPCVO (.0ϖύϘ
େ༰ྔͬͯɺͪΖΜϖλό Πτ 1# Ϩϕϧͷ͜ͱͩΑ Ͷʁ
͍͍͑
ςϥόΠτ 5# Ϩϕϧͷ͜ͱ ͩΑͶʁ
͍͍͑
ΪΨόΠτ (# Ϩϕϧͬ ͠ΐʁ
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.#
.#
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BOESPJEBQQ%PXOMPBE.BOBHFS ͘͢͝ศར
͓खܰ
ΞϓϦͷ༷తʹ͑ͳ͍߹͕͋Δ wΞϓϦͷ6*69ʹμϯϩʔυମݧ ΛΈࠐΈ͍ͨ w(PPHMFۘͷμϯϩʔυΞϓϦͰਐ ঢ়گΛ֬ೝͤͨ͘͞ͳ͍ wμϯϩʔυͷ༏ઌॱҐΛಠࣗʹߟྀ ͍ͨ͠
ແ͚Ε࡞Ε͍͍ !IJLB
ಠࣗʹμϯϩʔμʔ ͷΈΛ࡞Ζ͏
BOESPJEBQQ%PXOMPBE.BOBHFS ࢀߟʹ͢Δ
%PXOMPBE.BOBHFS %PXOMPBE1SPWJEFS %PXOMPBE4FSWJDF %PXOMPBE*OGP %PXOMPBE5ISFBE
͜͜·Ͱͷ·ͱΊ w%PXOMPBE.BOBHFSݸʑͷΞϓϦͷ ༷ʹଈͨ͠ܗͰΈࠐΉͷ͕͍͠ w%PXOMPBE.BOBHFSతͳΈΛࣗ࡞ ͢Δͱ͍͏Ξϓϩʔν w͡Ό͋ɺ%PXOMPBE.BOBHFSͷΈ Λࢀߟʹ࡞ͬͯΈΑ͏
%PXOMPBE.BOBHFS %PXOMPBE1SPWJEFS %PXOMPBE4FSWJDF %PXOMPBE*OGP %PXOMPBE5ISFBE
%PXOMPBE.BOBHFS %PXOMPBE1SPWJEFS %PXOMPBE4FSWJDF %PXOMPBE*OGP %PXOMPBE5ISFBE
$POUFOU1SPWJEFS w μϯϩʔυ͢ΔλεΫʹ͍ͭͯঢ়ଶΛ͔ͬ͠Γɾه͢Δ w λεΫͷঢ়ଶΛΈͯμϯϩʔυॲཧͷϋϯυϦϯάΛߦ͏
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4FSWJDF "DUJWJUZ ը໘ʣͱͷੜଘظ͕ؒҟͳΔ ෳͷը໘ؒΛ·͍ͨͰμϯϩʔυΛଓߦͰ͖Δ
Ϣʔβ͕֬ೝ͢Δज़
Ϣʔβ͕֬ೝ͢Δज़ w/PUJpDBUJPOΛग़͢ wࣗྗͰ࣮͢Δ TUBSU'PSFHSPVOE JOUJE BOESPJEBQQ/PUJpDBUJPOOPUJpDBUJPO
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4FSWJDFPS*OUFOU4FSWJDF 4FSWJDF *OUFOU4FSWJDF εϨου ϝΠϯεϨου ϫʔΧʔεϨου ॲཧํࣜ ύϥϨϧɾγϦΞϧ ʢཁ࣮ʣ
γϦΞϧ దੑ ෳͷϑΝΠϧΛಉ࣌ʹμ ϯϩʔυ͢Δͷʹ͍͍ͯΔ ୯ҰϑΝΠϧΛஞҰతʹμ ϯϩʔυ͢Δͷʹ͍͍ͯΔ
4FSWJDFͷੜࢮ ϓϩηε໊Λͬͨੜଘ֬ೝΛͯ͠ μϯϩʔυλεΫͷεςʔλεࢀর
4FSWJDFͷੜࢮ ϓϩηε໊ͷੜଘ֬ೝ
4FSWJDFͷੜࢮ ػछʹΑͬͯݺΕͳ͍
%PXOMPBE.BOBHFS %PXOMPBE1SPWJEFS %PXOMPBE4FSWJDF %PXOMPBE*OGP %PXOMPBE5ISFBE
5ISFBEͷ 5ISFBEͷͬͯଟ͍ํ͕μϯϩʔυΛޮతʹ ߦ͑ΔͷͩΖ͏͔ʁ େ͖͍ϑΝΠϧͱෳͷখ͍͞ϑΝΠϧΛμϯϩʔυ ͢Δ߹Λߟ͑Δͱͯ͠ɺͦͷ߹ɺ֤ϑΝΠϧ͝ͱʹ 5ISFBEΛ͚ͨ΄͏͕ྑ͍ͷͩΖ͏͔ʁ
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PS ΩϟϦΞ IUUQ$POOFDUJPO 5ISFBE
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5ISFBEͷ ࢼߦճճͷฏۉ ෳεϨουͰ. .✖️ݸͷ߹ܭ࣌ؒ
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5ISFBEͷ . . . . . . . .
. . . .
5ISFBEͷ
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σʔλΛอଘ͢Δ 00.&
σʔλΛอଘ͢Δ
σʔλΛอଘ͢Δ ຖճ'JMF*0ͷͭͳ͗Λ͢Δͱ͘ͳΔ
σʔλΛอଘ͢Δ
σʔλΛอଘ͢Δ
σʔλΛอଘ͢Δ
σʔλΛอଘ͢Δ #V⒎FSFE0VUQVU4USFBNͷόοϑΝͷΛௐ͢ Δ͜ͱʹΑͬͯ04ͱΞϓϦؒͰͷλεΫͷସΛগ ͳ͘͢Δ ʢσϑΥϧτόΠτʣ
σʔλΛอଘ͢Δ
σʔλΛอଘ͢Δ ૯ͯ͡ݟΔͱଝ৭ͳ͍
σʔλΛอଘ͢Δ ॻ͖ࠐΈΩϟογϡ͕͍ͬͺ͍ʹͳΔ·Ͱɺͪ࣌ؒ ͕ൃੜ͠ͳ͍ͷͰෳ5ISFBE͕͋ͬͯࡹ͚͍ͯΔ Α͏ͩɻ
௨৴ʴॻ͖ࠐΈ ࢼߦճճͷฏۉ
5ISFBEͷ ෳ ୯Ұ ϝϦοτ μϯϩʔυ͘ͳΔ ʢଳҬʹґଘ͢Δʣ ཧָ͕ɺεϨουͷϝϞϦ গͳͯ͘͢Ή σϝϦοτ
ཧ͕େม ϝϞϦফඅྔେ͖͍ ෳΑΓμϯϩʔυ ͘ͳΔ
5ISFBEͷ େ༰ྔͳσʔλΛμϯϩʔυ͢Δ߹ɺϢʔβମݧ ͱଞͷΞϓϦͷύϑΥʔϚϯεΛߟྀ͢Δͱγϯάϧ εϨουͰྑ͍ͱߟ͑ΒΕΔ
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ܾΊΔ
μϯϩʔυͷࣦഊ࣌ w KBWBMBOH0CKFDU w KBWBMBOH5ISPXBCMF w KBWBMBOH&YDFQUJPO w KBWBJP*0&YDFQUJPO
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μϯϩʔυͷࣦഊ࣌ USZ\ μϯϩʔυॲཧ ^DBUDI *0&YDFQUJPOF \ UISPXOFX4UPQ3FRVFTU&YDFQUJPO 45"564@'*-&@&3303
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μϯϩʔυͷࣦഊ࣌ ࣦഊ͢Δͦͷॠؒ·ͰɺҰମͲΕ͚ͩͷσʔλΛμϯϩʔ υͨ͠ͷ͔ʁ ࣦഊͨ͠ΒɺવΔ͖λΠϛϯάͰ·ͨ࠶։͢Ε͍͍ TUBUFN$VSSFOU#ZUFT CZUFT3FBE
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·ͱΊ w %PXOMPBE.BOBHFSͷߏཁૉΛࢀߟʹ ͯ͠ಠࣗͷμϯϩʔυͷΈΛ࡞Δ w େม͚ͩͲɺࣗͷΞϓϦಠࣗͷϢʔβମ ݧΛఏڙ͢Δ͜ͱྑ͍͜ͱʂ w ؤுΖ͏ʂʂ
εϖγϟϧαϯΫε ,*%" GSPNςοΫϑΝʔϜ
͝੩ௌ͋Γ͕ͱ͏͟͝ ͍·ͨ͠