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1. OBWJHBUJPOΛݟਾ͑ͨϦϑΝΫλϦϯά
 dϚϧνϞδϡʔϧԽΛఴ͑ͯd #POpSF
   "OESPJE
   
   ໦಺ɹܒี
   

2. ໦಺
   ܒี w ৬ۀɿ:
   ͷ"OESPJEΤϯδχΞ
   ݉
   ҭࣇύύ
   w झຯͰ࡞ͬͨϞϊɿʮΒ͘ͰΜ "QQ ʯɺ
 ʮ$MFBO"SDIJUFDUVSF5FNQMBUF'PS,PUMJO 044 ʯ
   

   w ޷͖ͳΞʔΩςΫνϟɿ$MFBO"SDIJUFDVUF
   w 4/4

   5XJUUFS!GFJ@LPNF

   (JUIVC!LJVDIJLFJTVLF

   2JJUB!L@LFJTVLF

3. એ఻ͦͷ̍ w ٕज़ॻయ  ʹͯαʔΫϧඈཾ͞Μ͔ͪΒ
 ʮϥϊϕ෩ʹ

   
   
   
   
   
   
   $MFBO"SDIJUFDUVSFΛֶͿຊʯ
 తͳಉਓࢽग़͠·ʔ͢

4. એ఻ͦͷ̎

5. ࠓճͷωλ
   ϑΝΠφϯεΞϓϦΛ͕ͬͭΓ
 ϦϑΝΫλϦϯά͠Α͏ͱͨ࣌͠ͷग़དྷࣄ ґଘؔ܎ ࢖༻ؔ܎

6. "QQ ͜Μͳײ͡ͳ΍ͭΛɾɾɾ 1SFTFOUFS %BUB

7. ͜Μͳײ͡ʹ͍ͨ͠ "QQ 1SFTFOUFS %BUB %PNBJO 'SBHNFOU 'SBHNFOU 'SBHNFOU OBWJ
   HBUJPO

   ɾ
   ɾ
   ɾ

8. 1SFTFOUFS OBWJHBUJPOಋೖ͢Δ্Ͱݟ͖͑ͯͨ໰୊఺ w BQQ഑Լͷ'SBHNFOU͕OBWJHBUJPO͔Βݟ͑ͳ͍
   w Ϋϥεؒͷ૬ޓґଘ͕ଟ͘શΫϥε͕͓Ҿӽ͢͠Δ੎͍ͩͬͨ
   w ը໘ભҠܥͷॲཧ͕৭ΜͳॴʹࢄΒ͹͍͙ͬͯͯ͢ʹ͸ಋೖͰ͖ͳ͔ͬͨ "QQ 'SBHNFOU

   'SBHNFOU ɾ
   ɾ
   ɾ 'SBHNFOU OBWJ
   HBUJPO 'SBHNFOU 'SBHNFOU 'SBHNFOU 'SBHNFOU TPNF$MBTT TPNF$MBTT TPNF$MBTT TPNF$MBTT

9. 
   ં஭Ҋʜ

10. কདྷOBWJHBUJPOΛಋೖ͠΍͍͢ Α͏ʹϦϑΝΫλϦϯά͠Α͏

11. ΍ͬͨ͜ͱ
    ґଘͷ޲͖Λٯసͤͭͭ͞
    OBWJHBUJPOʹؔ࿈͢ΔॲཧΛू໿ͨ͠

12. ͜ΕΛɾɾɾ w 3FGBDUPSFE'SBHNFOU͔Β͸'SBHNFOU ͕ݟ͑ͳ͍ 1SFTFOUFS "QQ 3FGBDUPSFE
 'SBHNFOU 'SBHNFOU ɾ
    

    ɾ
    ɾ 'SBHNFOU

13. ͜͏ͨ͠ w /BWJ*OUFSGBDFΛ௨ͯؒ͠઀తʹ'SBHNFOU ΁ΞΫηεͰ͖ΔΑ͏ʹͨ͠ 1SFTFOUFS "QQ 3FGBDUPSFE
 'SBHNFOU 'SBHNFOU ɾ
    

    ɾ
    ɾ 'SBHNFOU /BWJ
 *OUFSGBDF /BWJ
 *OUFSGBDF
 *NQM

14. 1SFTFOUFS "QQ ࣮૷ interface NaviInterface { fun getFragment2(): Fragment fun

    getFragment3(data: SomeData): Fragment } class RefactoredFragment { override fun onOptionsItemSelected(item: MenuItem): Boolean { when (item.itemId) { android.R.id.home -> changeFragment(naviInterface.getFragment2()) R.id.action_sub -> changeFragment(naviInterface.getFragment3(data)) } return super.onOptionsItemSelected(item) } } class NaviInterfaceImpl : NaviInterface { override fun getFragment2(): Fragment = Fragment2.newInstance() override fun getFragment3(data: SomeData): Fragment = Fragment3.newInstance(data.code, data.name) } OBWJHBUJPOΛ࢖͏ͱ͖͸͜ΕΒΛ ஔ͖׵͑Ε͹0, ͩͱࢥ͏ OBWJHBUJPOʹ͢Δ࣌͸
 ͜ΕΒΛஔ͖׵͑Ε͹0,

15. OBWJHBUJPO༻ͷॲཧ͕ू໿ग़དྷͯ
 1SFTFOUFS͕BQQʹґଘ͠ͳ͘ͳͬͨ

16. ऄ଍ͦͷ̍ w ͜ͷख๏ͬͯଞͷϨΨγʔͳ"QJ΍6UJMݺͼग़͠ʹ΋࢖͑ΔΜ͡Όʁ
 ˠ:&4 1SFTFOUFS "QQ 3FGBDUPSFE
 'SBHNFOU -FHBDZ6UJM ɾ
    

    ɾ
    ɾ -FHBDZ"QJ -FHBDZ
 *OUFSGBDF -FHBDZ
 *OUFSGBDF
 *NQM -FHBDZ
 *OUFSGBDF -FHBDZ
 *OUFSGBDF -FHBDZ
 *OUFSGBDF
 *NQM -FHBDZ
 *OUFSGBDF
 *NQM

17. ऄ଍ͦͷ w ͦ΋ͦ΋OBWJHBUJPOΛBQQ಺ʹ࣮૷͢Ε͹Α͔ͬͨͷͰ͸ʁ
 ˠ:&4 1SFTFOUFS "QQ 3FGBDUPSFE
 'SBHNFOU 'SBHNFOU ɾ
    

    ɾ
    ɾ 'SBHNFOU OBWJ
 HBUJPO

18. ·ͱΊ w ґଘͷ޲͖Λٯసͤ͞Ε͹ɺ1SFTFOUFSϞδϡʔϧ͔ΒBQQϞδϡʔϧ΁ ͷؒ઀తͳࢀর͕Մೳ OBWJHBUJPOҎ֎ʹ΋৭ΜͳγʔϯͰར༻Մೳ
    w ͦ΋ͦ΋OBWJHBUJPOͷ࣮૷ΛBQQϞδϡʔϧͰߦ͑͹ґଘੑΛ
 ؾʹ͠ͳͯ͘ྑ͍

19. ͓ΘΓ