独自設計のAndroidアプリを設計ごとKotlinizeした話

Transcript

1. 1.

   ಠࣗઃܭͷ AndroidΞϓϦΛ ઃܭ͝ͱKotlinizeͨ͠࿩ ϦΫϧʔτϚʔέςΟϯάύʔτφʔζ
   อࡔ
   ॣ 4IVO
   )PTBLB 1

2. 2.

   ͸͡Ίʹ w อࡔ
   ॣ ΄͔͞
   ͠ΎΜ
   w ৽ଔ̍೥໨
   w (JU)VC
   2JJUBͳͲ
   
   3FZVSOJCMF
   

   w ΩοζϦʔͱ͍͏ϓϩμΫτͷ10݉ΤϯδχΞ
 ʢอҭԂ޲͚ͷαʔϏεʣ 2
3. 3.

   ࠓ೔ͷ಺༰ w ೖ͔ࣾͯ͠Βͪΐͪ͘ΐ͘΍͖ͬͯͨɺ
 ࣗϓϩμΫτͷ,PUMJOԽΛҾ͖ܧ͍ͩ࿩
   w ,PUMJOಛ༗ͷ࿩ΑΓ΋ɺॻ͖׵͑ͷ࿩͕ଟΊ
   w ॻ͖׵͑Ұؾʹ΍ͬͯ΍ͬͨʂͰ͸ͳ͘ɺ
 ௕ظεύϯͰɺͲ͏Ҿ͖ܧ͍͔ͩͷ࿩ 3

4. 4.

   ܦҢ w ࠷ॳ͸ɺ֎஫Ͱ։ൃͨ͠ϓϩμΫτ
   w ಺੡ʹר͖औͬͯɺҰ෦,PUMJOʹϦϥΠτ͠ ͔ͯΒͷϦϦʔε
   w ಺੡Խͯ͠໿೥ɺࠓ೥ͷ݄ʹ"OESPJEͷ୲ ౰ऀ͕๻ʹ 4

5. 5.

   ݱঢ় w ,PUMJO཰ɺ͘Β͍ɻ
   w ओཁͳը໘͸େମϦϥΠτ͕ऴΘͬͯɺ࢒Γ ͸ઃܭը໘ͳͲ͕ଟ͍ɻ 5

6. 6.

   ॻ͖׵͑લ w +BWBͷίʔυ
   w ಠࣗઃܭɾൿ఻ͷλϨతͳίʔυ͕୔ࢁ͋Δ 6

7. 7.

   ॻ͖׵͑ޙ w ,PUMJOͷίʔυ
   w .71
   
   %%%Ͱ%BUB#JOEJOHͳͲ౰࣌ͷτϨϯυ 7

8. 8.

   ϦϥΠτͷਐΊํ w ը໘͝ͱʹϦϥΠτ
 ɾϝϦοτɿ࡞ۀ୯Ґ͕෼͚΍͍͢ɾ෼୲͠΍͍͢
 ɾσϝϦοτɿϥΠϒϥϦΛണ͕ͨ͠Γ͢Δͷʹ͸ಓ͕௕͍
   w ૚͝ͱʹϦϥΠτ
 ɾϝϦοτɿઃܭΛม͑΍͍͢
 ɾσϝϦοτɿมߋ͕େ͖͘ͳΓ͕ͪɺҰ෦ϦϦʔε͕͠ʹ͍͘
   w

   ϦϑΝΫλϦϯά
   
   ϦϥΠτ
 ɾϝϦοτɿεςοϓΛ౿ΜͰ៉ྷʹͰ͖Δ
 ɾσϝϦοτɿ޻਺͕͔͞Ή 8
9. 9.

   ϦϥΠτͷਐΊํ 9 w ̋
   ը໘͝ͱʹϦϥΠτ
   w ૚͝ͱʹϦϥΠτ
   w ϦϑΝΫλϦϯά
   
   ϦϥΠτ
   w ཧ༝ɿ
   

   w ҰؾʹϦϥΠτ͢ΔͷͰ͸ͳ͘ɺ௕ظతͳϦϥΠτΛ૝ఆͨ͠
   w طଘίʔυʹςετ͕ͳ͘ɺͦ΋ͦ΋ϦϑΝΫλϦϯάʹ΋ة ݥ͕͋ͬͨ
10. 10.

    ϦϥΠτͷํ਑ w ࡞Γͷѱ͍ͱ͜Ζ͔ΒϦϥΠτ
    w ϦϥΠτޙ͸ඞͣςετΛॻ͘
    w ϦϥΠτ͕ऴΘΔ·Ͱ͸ɺϦϥΠτͨ͠ଆ΁ͷϥΠϒϥϦೖΕସ ͑͸ͻ͔͑Δ
    w 6*ܥ͸ೖΕସ͑ͨΓͯ͠Δ
    

    w ϦιʔεͳͲ΋طଘͷ΋ͷΛ࢖༻͠ͳ͍Ͱɺ৽͍͠΋ͷΛෳ੡ͳͲ ͯ͠࢖༻͢Δ
    w OFX@ͳͲͷQSFpYΛ෇͚ͯΔ 10
11. 11.

    ࣦഊஊͱڭ܇ w Ϣʔβʔʹ͸ɺKBWB͔LPUMJOԽ͸େͯؔ͠܎ͳ͍
 ɾۀ຿౎߹ͳͲͰɺ͕࣌ؒࠩ͠ഭͬͯΔ࣌ʹ΍Βͳ͍
    w ࢓༷ͷมߋͱϦϥΠτ͸ಉ࣌ʹ΍Βͳ͍
 ɾϦϥΠτ͔ͯ͠Βվम͢Δ͔ɺมߋ͔ͯ͠ΒϦϥΠτ
    w ةͳ͍ͳΒແཧ΍Γ,PUMJOͰॻ͔ͳ͍
 ɾϏοτ഑ྻͷॲཧͳͲ,PUMJOͰஔ͖׵͑ʹ͍͘΋ͷ΋

    ͋Δ
 ɾҰ୴+BWBͷΫϥεͷ··ݺͼग़͢ɺͨͩ͠,PUMJOϑΥ ϧμʹೖΕ͓ͯ͘ 11
12. 12.

    ࠔΔ͜ͱ w ͕࣌ؒܦͭʹͭΕɺ,PUMJOԽͨ͠΋ͷͷதͰ ΋ϦϥΠτ͍ͨ͠΋ͷ͕ग़ͯ͘Δ
    w ϦϥΠτ͢Δͱ13ͷίʔυࠩ෼͕ଟ͘ͳͬͯɺ ϨϏϡʔͮ͠Β͍ 12

13. 13.

    νοϓε w Ϧιʔεͷ࢖༻਺Χ΢ϯτɿ
 "OESPJE
    3FTPVSDF
    6TBHF
    $PVOU
 IUUQTHJUIVCDPNOJPSHBJ"OESPJE3FTPVSDF6TBHF$PVOU
    w ফ͍ͨ͠Ϋϥεͷ্Ͱɺ
    
 $PNNBOE
    
    ΫϦοΫ


    ͰґଘϑΝΠϧͷҰཡΛ֬ೝ͢Δ 13
14. 14.

    ,PUMJOԽͯ͠
    ม͑ͨॻ͖ํ 14

15. 15.

    "DUJWJUZͳͲͷϏϧμʔύλʔϯ 15 ը໘͝ͱͷextensionΛ࡞ͬͨɻ ը໘໊.ktͰτοϓϨϕϧͷextensionΛॻ͍͍ͯΔ // file privateͳͷͰଞ͔Βࢀর͞ΕΔ͜ͱ͸ͳ͍ private object Keys

    { const val hoge = "Sample.hoge" } fun SampleActivity.Companion.createIntent(context: Context, hoge: String): Intent = Intent(context, SampleActivity::class.java).apply { put(Keys.hoge, hoge) } fun SampleFragment.Companion.newInstance(hoge: String): SampleFragment = SampleFragment().apply { arguments = Bundle().apply { putString(Keys.hoge, hoge) } } fun SampleActivity.createFragment(): SampleFragment = SampleFragment.newInstance(intent.getStringExtra(Keys.hoge)) fun SampleFragment.parseHoge(): String = arguments.getString(Keys.hoge) ※SampleActivityͱSampleFragmentʹ͸ɺͦΕͧΕ companion object;ͱ͍͏ܗͷهࡌ͕ඞཁɻ
16. 16.

    ίʔϧόοΫ 16

17. 17.

    ͓ΘΓʹ w ϦϥΠτ͸ແ஡ͤͣɺ௕ظઓΛݟਾ͑ͯ΍Δ
    w ݴޠ؀ڥ͕มΘΔͷͰɺઈରతͳํ਑͸ཱͯ ͳ͍
    w ϦϥΠτ͕ϢʔβʔՁ஋ΛੜΉͱա৴͠ͳ͍ 17