Android の画像ライブラリPicassoを使ってみた事例です
1JDBTTPΛ ͬͯΈͨOJOKJOLVO
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w ࠓͷ༰IPUDIFNJ͞ΜͷΤϯτϦʹ͍͍ͩͨॻ͍ͯ͋Γ·͢w ը૾ϥΠϒϥϦ1JDBTTPͷ͍ํ!w ΠϯλʔωοτʹײँIUUQIPUDIFNJIBUFCMPKQFOUSZ
"OESPJEͷ8FCը૾ϩʔμʔw 7PMMFZw 6OJWFSTBM*NBHF-PBEFSw 1JDBTTP
7PMMFZw (PPHMFۘw ϝϞϦΩϟογϡɺσΟεΫΩϟογϡw ΦϓγϣϯগͳΊw /FUXPSL*NBHF7JFXw *NBHF7JFXΛܧঝw ը૾ϩʔυ෦ΛࣗͰॻ͘͜ͱͰ͖Δ͚Ͳʜ
6OJWFSTBM*NBHF-PBEFSw ݹ͔͘Β͋Δɺ҆৺ͷ࣮w ๛ͳΦϓγϣϯw ϝϞϦΩϟογϡɺσΟεΫΩϟογϡw ΠϯλʔϑΣΠεएׯࡶw ը૾Λॖখ͢ΔΦϓγϣϯ͋Δ
1JDBTTPw ҆৺ͷ4RVBSFࣾ+BLF8IBSUPO࡞w ؆ܿͳΠϯλʔϑΣΠεw ϝϞϦΩϟογϡɺσΟεΫΩϟογϡw ؾͷར͍ͨΦϓγϣϯw ը૾ॖখϩʔυw ϑΣʔυΞχϝʔγϣϯ
؆ܿͳΠϯλʔϑΣΠεw ͔͍͍ͬ͜Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);
؆ܿͳΠϯλʔϑΣΠεw ͔͍͍ͬ͜1JDBTTPXJUI HFU$POUFYU MPBE JNBHF63-QMBDFIPMEFS [email protected]FSSPS [email protected]DFOUFS$SPQ JOUP JNBHF7JFX
ΩϟογϡσϑΥϧτw ΞϓϦέʔγϣϯώʔϓͷ·ͰΛϝϞϦΩϟογϡͱͯ͠༻w MBSHF)FBQʹͪΌΜͱରԠw σΟεΫ༰ྔͷ·ͰΛσΟεΫΩϟογϡͱͯ͠༻
3FTJ[Fػೳw େ͖ͳ#JUNBQΛ*NBHF7JFXʹϩʔυ͢Δͱ0VU0G.FNPSZ͕ग़ͨΓॏ͘ͳͬͨΓ͢Δw *NBHF7JFXͷαΠζʹॖখͯ͠ಡΈࠐΉͷ͕Ԧಓw -PBEJOH-BSHF#JUNBQT&⒏DJFOUMZ!w 1JDBTTP͜ΕΛࣗಈͰͬͯ͘ΕΔw ࣗͰΛ༩͑ͯSFTJ[FͰ͖ΔIUUQEFWFMPQFSBOESPJEDPNUSBJOJOHEJTQMBZJOHCJUNBQTMPBECJUNBQIUNM
ૉͷ*NBHF7JFX͕͑Δw *NBHF7JFX͕ܧঝͰͳ͍ͷ͕ྑ͍w 3PVOEFE*NBHF7JFXͱ͍͔ࠞͥͯͨͬͨ
ಡΈࠐΈ࣌ͷϑΣʔυw σϑΥϧτ0Ow ඞཁͳ͚ΕOP'BEF Λ͏!w ࣗલͰॻ͖͚ͨΕ$BMMCBDLͰॻ͚ͦ͏ ະݕূPicasso.with(context).load(“http://i.imgur.com/DvpvklR.png”).noFade().into(imageView);
ϩʔΧϧͷը૾औಘͰ͖Δw ΪϟϥϦʔ͔Βը૾બw ϑΝΠϧύεΛ1JDBTTPʹ৯ΘͤΔw ϩʔΧϧϑΝΠϧɺ(PPHMF%SJWFͳͲΛҙࣝ͠ͳͯ͘ྑ͍w &YJGΛಡΜͰը૾ճసͱ͔ͬͯ͘ΕΔw ͜ͷลΓ࠷ۙόάͬͯͨͷͰɺ͏ͱ͖ཁݕূ
ΧελϚΠζw #VJMEFSw 1JDBTTPΠϯελϯεͷσϑΥϧτΛมߋͰ͖Δw 5SBOTGPSNBUJPOw ը૾औಘޙͷมܗૢ࡞w ؙ֯ͱ͔w $BMMCBDLw *NBHF7JFXʹೖ͢Δલͷૢ࡞w Ξχϝʔγϣϯͱ͔
ϋϚΓͲ͜Ζw PLIUUQΛೖΕͳ͍ͱඍົw "OESPJEҎԼͰΩϟογϡ͕ޮ͔ͳ͍w ύϑΥʔϚϯεѱ͍ؾ͕͢Δ ཧ༝ෆ໌w ίʔυಡΜͰͳΜͰ͔Θ͔Βͳ͔ͬͨ
ϋϚΓͲ͜Ζw ௨৴ํ๏ʹΑͬͯ5ISFBE1PPMͷ͕มΘΔw (ຊ (ຊ 8J'Jຊw ඞͣ(ͰνΣοΫ͢Δ͜ͱw ݸਓతʹ͜ͷػೳཁΒͳ͍ʜw &YFDVUPSΛࣗલͰηοτ͢Ε֎ͤΔ
·ͱΊw 1JDBTTPखܰͰ͍͍͢8FCը૾ϩʔμʔw ͏ͱ͖PLIUUQΛೖΕ·͠ΐ͏w 1JDBTTPίʔυ͔͍͍ͬ͜ͷͰษڧʹͳΓ·͢
࣭ٙԠw ࠷େαΠζΛదʹܾΊ͓͔ͯͳ͍ͱ00.ͰམͪΔͱࢥ͏͕Ͳ͏͍ͯ͠Δ͔w ฐࣾͷը૾ͦ͜·Ͱେ͖͍ͷ͕ͳ͍ͷͰɺ ·ͩݟ͕ͳ͍