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Encouragement of ListView
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Ryutaro Miyashita
July 14, 2013
Technology
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Encouragement of ListView
Introduction of Titanium 3.1 ListView
Ryutaro Miyashita
July 14, 2013
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Transcript
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JNUIJOLFSOFU 5JUBOJVN͘͘ձJO/*'5:
5JUBOJVN͘͘ձJO/*'5: ࠓळɺϞόΠϧΞϓϦΛશ໘ϦχϡʔΞϧ 5JUBOJVN͘͘ձJO/*'5:
ύϑΥʔϚϯε 5JUBOJVN͘͘ձJO/*'5: 5JUBOJVNΞϓϦͰ·͞ΕΔ՝ͷͭ
5J6*5BCMF7JFX 5JUBOJVN͘͘ձJO/*'5: ΈΜͳେ͖͍ͬͺ͍͏
࣮ੑೳʷ 5JUBOJVN͘͘ձJO/*'5: ͔ͬͯΔͳ "OESPJEͳ
Ȓ 5JUBOJVN͘͘ձJO/*'5: ೦ɺզʑͷ5JUBOJVNऴΘͬͯ͠·ͬͨ
5JUBOJVN͘͘ձJO/*'5: ʘʘaaᵋ Т ʯʗʗ ͦΜͳ5JUBOJVNʹٹੈओ͕ ʘʘaaᵋ Т ʯʗʗ 5JUBOJVN͘͘ձJO/*'5: ͦΜͳ5JUBOJVNʹٹੈओ͕
5J6*-JTU7JFX 5JUBOJVN͘͘ձJO/*'5: 5JUBOJVNYʹݱΕͨ৽͍͠"1*
-JTU7JFXࢁͷSPXΛ࣋ͭ߹ੑೳ͕ྑ͍ 5JUBOJVN͘͘ձJO/*'5: “ListView is designed to perform better with a
large number of rows.”
Ξϓϩʔνͷҧ͍ 5JUBOJVN͘͘ձJO/*'5: -JTU7JFXͱ5BCMF7JFXͷҧ͍
σʔλͱϏϡʔ 5JUBOJVN͘͘ձJO/*'5: -JTU7JFXσʔλࢦ5BCMF7JFXϏϡʔࢦ
5JUBOJVN͘͘ձJO/*'5:
5JUBOJVN͘͘ձJO/*'5: σʔλ Ϗϡʔ ใͷҰཡ ԿΒ͔ͷը໘
l-BCFM*NBHF7JFXΛஔ͍ͨ 5BCMF7JFX3PXΛࢁ࡞ͬͯ 5BCMF7JFXͰදࣔ͢Δz 5BCMF7JFXͷΞϓϩʔν 5JUBOJVN͘͘ձJO/*'5:
l-BCFM*NBHF7JFXΛஔ͍ͨ 5BCMF7JFX3PXΛࢁ࡞ͬͯ 5BCMF7JFXͰදࣔ͢Δz 5BCMF7JFXͷΞϓϩʔν 5JUBOJVN͘͘ձJO/*'5: ύϑΥʔϚϯεͷϘτϧωοΫ
l-JTU7JFXͷ্Ͱ -BCFM*NBHF7JFXΛ Ͳ͏දࣔ͢Δͷ͔Λ༧ΊܾΊ͓ͯ͘z -JTU7JFXͷΞϓϩʔν 5JUBOJVN͘͘ձJO/*'5:
l-JTU7JFXͷ্Ͱ -BCFM*NBHF7JFXΛ Ͳ͏දࣔ͢Δͷ͔Λ༧ΊܾΊ͓ͯ͘z -JTU7JFXͷΞϓϩʔν ΞΠςϜςϯϓϨʔτ 5JUBOJVN͘͘ձJO/*'5:
ίʔυΛݟͤΖ 5JUBOJVN͘͘ձJO/*'5: ͬ͝ͱ
var plain_template = { childTemplates: [{ type: "Ti.UI.Label", bindId: "myLabel",
properties: { left: "10dp" }, events: { click: reportFunction } }] }; var list = Ti.UI.createListView({ templates: { plain: plain_template }, defaultItemTemplate: "plain" }); 5JUBOJVN͘͘ձJO/*'5: ςϯϓϨʔτͷઃఆ
var data = []; [1,2,3,4,5].forEach(function (idx) { data.push({ myLabel: {
text: "Row #" + idx }, properties: { itemId: "item" + idx } }); }); var section = Ti.UI.createListSection({ items: data }); list.sections = [section]; 5JUBOJVN͘͘ձJO/*'5: ςϯϓϨʔτΛͬͯΞΠςϜΛ࡞Δ
5JUBOJVN͘͘ձJO/*'5: list.addEventListener( "itemclick", function (e) { // Get clicked item
reference var item = e.section.getItemAt(e.itemIndex); console.log(item.properties.itemId); // Replace clicked item e.section.UpdateItemAt(e.itemIndex, item); } ); -JTU7JFXͷΠϕϯτϋϯυϦϯά
-JTU7JFXͱ ܾΊͨͱ͓ΓͷܗͰσʔλΛදࣔͤ͞ΔͨΊͷͷ 5JUBOJVN͘͘ձJO/*'5:
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5JUBOJVN͘͘ձJO/*'5: )5$%FTJSF4 "OESPJE Y 4OBQESBHPO()[ .#3". (PPHMF/FYVT4 ˺
5JUBOJVN͘͘ձJO/*'5:
NT Y NT Y 1SFQBSF 1SFQBSF 5JUBOJVN͘͘ձJO/*'5:
5JUBOJVN͘͘ձJO/*'5: ੌ͍ 5JUBOJVN͘͘ձJO/*'5: ੌ͍ "OESPJEͰ͍ "OESPJEͰ͍
-JTU7JFX 5BCMF7JFX ˚ "OESPJE Y J1IPOF 4JNVMBUPS
Y J1IPOF Y ୯Ґ<NT> 5JUBOJVN͘͘ձJO/*'5:
5JUBOJVN͘͘ձJO/*'5: J04ޮՌൈ܈ J04"OESPJEڞʹ͍ J04ޮՌൈ܈ 5JUBOJVN͘͘ձJO/*'5: J04"OESPJEڞʹ͍
ͬͨίʔυ 5JUBOJVN͘͘ձJO/*'5: IUUQTHJUIVCDPNSZVHPP5JUBOJVN-JTU7JFX4BNQMF
5JUBOJVN͘͘ձJO/*'5: ʘʘaaᵋ Т ʯʗʗ ͜ΕͰղܾͩ ʘʘaaᵋ Т ʯʗʗ 5JUBOJVN͘͘ձJO/*'5: ͜ΕͰղܾͩ
éĕÕǤʌñʞìè 5JUBOJVN͘͘ձJO/*'5: ͪΖΜɺ·ͩɺશ͕ͯղܾ͢ΔΘ͚Ͱͳ͍
5JUBOJVN͘͘ձJO/*'5: ࣮ɺ·ͩ·ͩ"1*͕Γͯͳ͍ “A complete list of implemented features is schedule
for the next list version, which is planned for Release 3.2.0.”
5JUBOJVN͘͘ձJO/*'5: 1SPQT FEJUJOHFEJUBCMF TFQBSBUPS$PMPS4UZMF &WFOUT ESBHTUBSUESBHFOE TDSPMMTDSPMMFOE IFBEFS7JFXGPPUFS7JFX EFMFUFNPWF ʜ
ʜ
5JUBOJVN 5JUBOJVN͘͘ձJO/*'5: Β͍͠ 8BJUJOH
·ͱΊ 5JUBOJVN͘͘ձJO/*'5: $PODMVTJPO
-JTU7JFX͍ 5JUBOJVN͘͘ձJO/*'5: 5BCMF7JFXͷYY͙Β͍͍
ͪΐͬͱ͍͠ 5JUBOJVN͘͘ձJO/*'5: 5BCMF7JFX΄Ͳͷॊೈੑແ͍
·్࣮ͩத 5JUBOJVN͘͘ձJO/*'5: 5JUBOJVNͰҰ௨Γͷ࣮͕ऴΘΔΒ͍͠
Ͱ͍ 5JUBOJVN͘͘ձJO/*'5: ෳࡶͳॲཧΛΘͳ͚Εेʹ͑Δ
ࢼ͢Ձ͋Γ 5JUBOJVN͘͘ձJO/*'5: 5BCMF7JFX͚͔ͩ͠Θͳ͍ͷମͳ͍
CODESTRONG ! 5JUBOJVN͘͘ձJO/*'5: