1ヶ月でAndroidカメラアプリ開発(1/4)

by sakebook

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̍ϲ݄Ͱ ANDROIDΧϝϥΞϓϦ։ൃ @Trunk ञຊ৳໵ 2016/3/13

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͸͡Ίʹ

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ࣗݾ঺հ ञຊ৳໵ ੴ઒ݝ @sakebook Android 3೥͘Β͍ iOS ൒೥ͪΐͬͱ ϥΠϑϩά޷͖

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ຊ೔ͷྲྀΕ • ࡞ΔΞϓϦͷσϞ • Androidʹ͍ͭͯ • ։ൃ؀ڥઃఆ • ։ൃ؀ڥղઆ • ΞϓϦͷσόοά • ιʔείʔυ؅ཧ • Adobe SDKಋೖ

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࡞ΔΞϓϦͷσϞ

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ANDROID

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ANDROIDͱ͸ • Google͕։ൃ͢ΔΦʔϓϯιʔεͳ  ϞόΠϧ޲͚ϓϥοτϑΥʔϜ

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ΞʔΩςΫνϟ https://ja.wikipedia.org/wiki/Android

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όʔδϣϯ • ࡉ͔͍΋ͷΛؚΊΔͱ  20Ҏ্΋ͷछྨ  (API LEVEL) • 4.1Ҏ͕߱90%ऑΛ઎ΊΔ  (2015/6/1)

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APK • ΞϓϦͷ֦ுࢠ • Application PaKage  ͔Β͖͍ͯΔ • ։ൃͨ͠ΞϓϦ͸̋̋.apk  ͱ͍͏ܗʹͳΔ

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։ൃ؀ڥ

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ANDROID STUDIO • Intellij IDEAΛϕʔεʹͨ͠౷߹։ൃ؀ڥ(IDE) • Google͕։ൃ • Androidͷ։ൃʹಛԽ • Eclipse͸ଔۀ͍ͯͩ͘͠͞(ADT͕։ൃऴྃ)

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͊͞͸͡ΊΑ͏

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NEW PROJECT • Application name • ΞϓϦͷ໊લ • Company Domain • ࣗ෼ΛϢχʔΫʹ  ͢ΔυϝΠϯ

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NEW PROJECT • Package name • ΞϓϦΛϢχʔΫʹ  ͢Δจࣈྻ • ଞͷΞϓϦͱॏෳېࢭ • Project location • PC಺ͷϓϩδΣΫτύε

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NEW PROJECT • Phone and Tablet • API 16(4.1) • Empty Activity • Activity ≒ ը໘ • ͦͷ··(ޙ͔ΒมߋՄೳ)

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ϓϩδΣΫτߏ੒

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• ϓϧμ΢ϯΛ  Android -> Project  ʹมߋ

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• MyApplication(Root) • ϓϩδΣΫτϧʔτ • .gradle/ • ϩʔΧϧϦϙδτϦ • .idea/ • IDEͷઃఆঢ়گ

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• build/ • Ϗϧυ࣌ͷ  ϑΝΠϧஔ͖৔ • gradle/ • Ϗϧυʹඞཁͳ  Gradleஔ͖৔ • .gitignore • gitͰ؅ཧ͠ͳ͍΋ͷΛ  ࢦఆ • build.gradle • ϓϩδΣΫτͷ  ґଘؔ܎Λهड़

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• gradle.properties • Gradle͕  ࢀর͢ΔϓϩύςΟ • gradlew • Linuxͷ  Gradle࣮ߦϑΝΠϧ • gradlew.bat • Windowsͷ  Gradle࣮ߦϑΝΠϧ

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• local.properties • ݸਓͷ؀ڥͷSDKͷ  ύεͷઃఆ • MyApplication.iml • IntellijͷϑΝΠϧ • setting.gradle • GradleͷϏϧυϞδϡʔϧΛهड़ • External Libraries • ϓϩδΣΫτͷ  ֎͔Βࢀর͍ͯ͠Δ  ϥΠϒϥϦ

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• app/ • Ϟδϡʔϧ • app/libs • ϩʔΧϧϥΠϒϥϦ  ஔ͖৔ • app/build.gradle • ϞδϡʔϧͷϏϧυͷઃఆ΍  ґଘؔ܎Λهड़ • app/proguard-rules.pro • ೉ಡԽʹ༻͍Δ

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• src • ίϯύΠϧର৅ͷ  ϑΝΠϧஔ͖৔ • src/androidTest • ςετϑΝΠϧஔ͖৔ • src/main/java • ιʔεϑΝΠϧஔ͖৔ • src/main/res • ϦιʔεϑΝΠϧஔ͖৔

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• drawable • ը૾΍xmlΛஔ͘৔ॴ • layout • ϨΠΞ΢τͷxmlΛ  ஔ͘৔ॴ • menu • ϝχϡʔͷxmlΛஔ͘৔ॴ • mipmap • ΞΠίϯը૾Λஔ͘৔ॴ

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• dpi  (Dot Per Inch: ը໘ີ౓) • mdpi(48x48) • hdpi(72x72) • xhdpi(96x96) • xxhdpi(144x144)

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• dimens.xml • จࣈͷαΠζ΍  ༨നͷ஋ͳͲΛ  ఆٛͰ͖Δ • strings.xml • ςΩετΛఆٛͰ͖Δ • styles.xml • ΞϓϦͷςʔϚΛ  هड़Ͱ͖Δ

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• AndroidManifest.xml • ΞϓϦͱ୺຤ؒͷ  Permission΍  ActivityͳͲͷ  ৼΔ෣͍ɺ  Package nameͳͲ  ༷ʑͳ͜ͱΛ  ઃఆͰ͖Δ

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ANDROID STUDIO SETTING

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ίʔυิ׬ • ్த·Ͱೖྗ͢Δͱ༧ଌͰ  ݱࡏར༻ՄೳͳީิΛදࣔͯ͘͠ΕΔ • Android Studio -> Preference ->   Keymap ->ʮCompletionʯ  (޷͖ͳίϚϯυΛׂΓ౰ͯΔ)

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ߦ਺දࣔ • ϑΝΠϧͷࠨଆʹݱࡏͷߦ਺Λ  දࣔͯ͘͠ΕΔ • Android Studio -> Preference ->   Editor -> General -> Appearance ->  ʮShow line numbersʯ  (νΣοΫΛೖΕΔ)

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GENERATE • ࣗಈੜ੒Ͱ͖Δ΋ͷ΁ͷγϣʔτΧοτ  (⌘+n)

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ࠔͬͨ࣌ • (Alt + Enter)Ͱͦͷ৔ͰͰ͖Δ͜ͱΛ  αδΣετͯ͘͠ΕΔ

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ଞʹ΋ͨ͘͞Μ • http://qiita.com/sugoi_wada/items/ db449d5cbb5c83cb586c • http://qiita.com/takke/items/ 5cbc629f7f65d6a49906

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Ϗϧυ

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ϏϧυγεςϜ • Gradle • GroovyͰهड़Ͱ͖Δ • setting.gradleͰର৅ͱͳΔϞδϡʔϧΛࢦఆ • app/build.gradleʹϏϧυ࣌ͷλεΫΛهड़ • ίϚϯυϥΠϯ or ASͷػೳͰϏϧυ࣮ߦ

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No content

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ίϚϯυϥΠϯ • $./gradlew assembleDebug • BuildType͕DebugͰϏϧυ͞ΕͨapkΛ  app/build/outputs/apk ʹ࡞੒ • $./gradlew installDebug • ର৅ͷσόΠεʹapkΛΠϯετʔϧ

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࣮ػ OR ΤϛϡϨʔλ

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࣮ػ͕ͳ͚Ε͹ΤϛϡϨʔλ • ७ਖ਼ͷ΋ͷ͸͋͘ͼ͕ग़Δ΄Ͳ஗͍ • 2.x͔Βૣ͘ͳΔΒ͍͠ɻ • GenymotionΛ࢖͏

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GENYMOTION • ര଎ͷΤϛϡϨʔλ • ແྉ൛ͩͱ੍ݶ͕͋Δ͕ɺ  ௨ৗར༻ͳΒे෼ • https://www.genymotion.com/

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LOGCAT

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LOGCAT • ઀ଓ͞Ε͍ͯΔσόΠε͕ྲྀ͍ͯ͠ΔϩάΛ ऩूɾදࣔ͢Δػೳ

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දࣔͤ͞Δ • ΍ͬͱίʔυʹ৮Δʂʁ • 14ߦ໨ʹ  Log.d(“Trunk”, “onCreate”);

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͜͏͍͏ͱ͖͕ • Alt + Enterͷग़൪ʂ

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දࣔ͞Εͨ • ݟ෼͚͕  ͭ͘Α͏ʹ  ͳͬͨ

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अຐͳ΋ͷΛഉআ͍ͨ͠ • FilterΛ࡞੒͢Δ

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ݟ΍͘͢ͳͬͨʂ

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࢖͍෼͚ • Log.v(String tag, String msg) ʮ৑௕ʯ • Log.d(String tag, String msg) ʮσόοάʯ • Log.i(String tag, String msg) ʮ৘ใʯ • Log.w(String tag, String msg) ʮܯࠂʯ • Log.e(String tag, String msg) ʮΤϥʔʯ

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BREAKPOINT

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BREAK POINT • LogcatͩͱΫϥογϡͨ͠৔ॴͰɺଞͷ஋͕ Ͳ͏ͳ͍ͬͯΔ͔ͳͲ͕Θ͔Βͳ͍ • Ϋϥογϡ͢Δ෇͔ۙΒಈ͖Λ  ͭͿ͞ʹ௥͍͍ͨʂ

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DEBUG • ϓϩάϥϜΛ  ࢭΊ͍ͨ৔ॴʹ  ੺ؙΛઃஔ • ʮhogeʯͷ  ஋ΛݟͯΈΔ

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͓࢖͍ͷσόΠε͸ਖ਼ৗͰ͢ • σόΠεଆʹද͕ࣔ  ͰΔ͕଴ͭ

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εςοϓΦʔόʔ • 15ߦ໨ͰBreak • ࢭ·ͬͨߦ͸  ͦͷ࣌఺Ͱ͸  ධՁ͞Εͳ͍

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• ʮhogeʯ͕ఆٛ  ͞Ε͍ͯΔ

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• ʮhogeʯͷ  த਎͕”huga”ʹ  ͳ͍ͬͯΔ

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ෳ਺ઃஔͨ࣌͠ • ݱࡏͷ  Breakpoint͔Β  ൈ͚ͨΓ઀ଓΛ  ੾Δ͜ͱ΋  Ͱ͖Δ

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ιʔείʔυ؅ཧ

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GIT • ෼ࢄܕόʔδϣϯ؅ཧγεςϜ • GitHub • GitΛ༻͍ͨWebαʔϏε

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Α͘࢖͏ίϚϯυ • git status • git diff ϑΝΠϧ • git checkout ϑΝΠϧ • git add ϑΝΠϧ • git commit -m “ϝοηʔδ” • git pull “ϦϞʔτϦϙδτϦͷURL” “ϩʔΧϧͷϒϥϯν໊” • git push “ϦϞʔτϦϙδτϦͷURL” “ϩʔΧϧͷϒϥϯν໊”

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• git status • ݱࡏͷϒϥϯνͰ  มߋ͕͋Δ͔Ͳ͏͔Λ֬ೝ • git diff ϑΝΠϧ • ର৅ͷϑΝΠϧͷ  Ͳ͜ʹมߋ͕͋Δͷ͔Λ֬ೝ

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• git checkout ϑΝΠϧ • ର৅ͷϑΝΠϧͷ  ϩʔΧϧϦϙδτϦͰͷมߋΛ໭͢ • git add ϑΝΠϧ • ର৅ͷϑΝΠϧΛcommitର৅ʹ͢Δ

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• git commit -m “ϝοηʔδ” • commitର৅ʹͨ͠ϑΝΠϧͨͪΛ  pushର৅ʹ͢Δ • git pull “ϦϞʔτϦϙδτϦͷURL” “ϩʔΧϧͷ ϒϥϯν໊” • ϦϞʔτϦϙδτϦͷมߋΛϩʔΧϧʹ൓ өͤ͞Δ

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• git push “ϦϞʔτϦϙδτϦͷURL” “ϩʔΧ ϧͷϒϥϯν໊” • pushର৅ʹͨ͠ϑΝΠϧͨͪΛϦϞʔτ ϦϙδτϦ΁push͢Δ

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~/.GITCONFIG [user] name = Shinya Sakemoto email = [email protected] [color] ui = auto [alias] st = status br = branch -a ch = checkout cm = commit stt = status -uno difff = diff --word-diff • Α͘࢖͏΋ͷ͸  ొ࿥͓ͯ͘͠ͱศར

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ৄ͘͠͸ • http://blog.nanapi.co.jp/tech/2014/04/23/git-love/

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GITHUBʹొ࿥͠Α͏ • ઌ΄Ͳ࡞੒ͨ͠ϓϩδΣΫτΛొ࿥ • GitHubͰద౰ͳϦϙδτϦ࡞੒ • $git remote add origin ϦϙδτϦ

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ADOBE CREATIVE CLOUD

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SDK • Software Development Kit • ࠓճͩͱAdobe͕ఏڙ͍ͯ͠ΔػೳΛɺΞϓϦ಺ ʹ૊ΈࠐΉ͜ͱ͕Ͱ͖Δɻ • https://creativesdk.adobe.com/docs/android/#/articles/ gettingstarted/index.html • Ұॹʹઃఆ͠·͠ΐ͏