Recent tips collection

Transcript

1. ࠷ۙͷTipsू
2. yoppie Αͬͽʔ
3. KotlinͷString 
 trimMargin() w ࠷ॳͱ࠷ޙͷۭനͱۭߦΛ࡟আ
   w c
   ΑΓࠨͷۭനΛ࡟আ
4. requireActivity() 'SBHNFOUͰHFU"DUJWJUZΛݺͿ৔߹/VMMBCMFͳͷͰɺ
 BDUJWJUZʹͳΔ
5. requireActivity() 'SBHNFOUͰSFRVJSF"DUJWJUZΛݺͿͱ/PO/VMMͳͷͰɺ
 BDUJWJUZ
   ͕
   SFRVJSF"DUJWJUZ
   ʹͳΔ
6. Custom ViewͷAttribute BQQTFU*DPO5FYU!\IPHFOBNF^
   BQQTFU#BDL(SPVOE!\IPHFOBNF^
7. FragmentͷSnackbar 'SBHNFOUΛද͍ࣔͯ͠Δ"DUJWJUZͷ
 ਌ͷ7JFXΛࢦఆ͢΂͖ͩͬͨ
8. HTMLͷtextarea෩
 EditText
9. HTMLͷtextarea෩
 EditText <?xml version="1.0" encoding="UTF-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/bg_active" android:state_focused="true" /> <item android:drawable="@drawable/bg_inactive" /> </selector> <?xml version="1.0" encoding="UTF-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <stroke android:width="1dp" android:color="@color/colorPrimary" /> <corners android:topLeftRadius="2dp" android:topRightRadius="2dp" android:bottomLeftRadius="2dp" android:bottomRightRadius="2dp" /> </shape> <?xml version="1.0" encoding="UTF-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <stroke android:width="1dp" android:color="#CCCCCC" /> <corners android:topLeftRadius="2dp" android:topRightRadius="2dp" android:bottomLeftRadius="2dp" android:bottomRightRadius="2dp" /> </shape> CH@IPHFYNM
10. HTMLͷtextarea෩
 EditText ͖ͬ͞ͷϦιʔε ࠨ্࢝·Γ ϓϨΠεϗϧμʔ ෳ਺ߦ
    ೖྗ ݟ͑Δߦ਺ͷ࠷େ஋ ϓϨΠεϗϧμʔͷ৭
11. MediatorLiveData ผͷ-JWF%BUBΛ؂ࢹͯࣗ͠਎ͷ஋Λมߋ w FEJU5FYU
    w ૒ํ޲%BUB#JOEJOH
    w JT"CMF4VCNJU
    w ηʔϒதͷ৔߹GBMTF
    w ஋͕ۭͷ৔߹GBMTF
12. ٕज़ॻయ