5FDI5BMLTͱ
w 88%$鲳鲻鲯鳟鳫Ҏ֎鱰鲇"QQMF鱑ެ։鱜鱫鱉鲐ಈը鱑鱇鲐
w "QQMF%FWFMPQFS"QQ鲉鲭鲜鳀鱬ݟ鲑鲐
w 鱢鱳த鱳5FDI5BMLT鱑鱏鲇鱜鲒鱉
3/19
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ࠓհ͢Δ5FDI5BMLT
w 6*鲚鳃鳙鱅鲯鳟鳫鱳鲏鱏鲍鱸鳤鳫鲸鱅鳣鱅鳏鱰ର鱞鲐ݕ౼
ʢ&YQMPSF6*"OJNBUJPO)JUDIFTBOE5IF3FOEFS-PPQʣ
w ݄鱰ެ։鱚鲑鱤
w J04"QQ鱳鲱鲧鳥鱅鳣࣌鱳දࣔ鱳鲇鱤鱩鱒鲗վળ鱞鲐ํ๏
4/19
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)JUDIʢΓʣ
w 鳍鳤鱅鳘鱑༧ఆ鲍鲏鱔දࣔ鱚鲑鲐鱘鱭
w ӈ鱳ྫ鱴'SBNF鱳දࣔ鱑鲑鱤
w 'SBNF鱳දࣔ鱬Ұॠࢭ鲃鱨鱫ݟ鱍鲐
5/19
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3FOEFS-PPQ
w 鲷鲻鲹鲜鳑鳫鳀鱑"QQ鱰鱚鲑鱫鱐鲎
ඳը鱑ऴ鲔鲐鲃鱬鱳鳏鳥鲳鲱鱳鱘鱭
w ஈ֊鱰鱐鲑鲐
w 74:/$鱰߹鲔鱠࣌ؒ鱰ॲཧ鱑ඞཁ
w J1IPOFJ1BENTʢ)[ʣ
w J1BE1SPNTʢ)[ʣ
6/19
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$PNNJUϑΣʔζ
w 3FOEFS-PPQ鱳ஈ֊
w 鳤鲜鲚鲞鳀
w 7JFX鱳ੜ鲉ஔ
w layoutSubviews
w දࣔ
w 7JFX鱳drawRect
w 7JFX鱳֊ߏ鱴อ࣋鱚鲑鲐
7/19
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3FOEFSϑΣʔζ
w 3FOEFS-PPQ鱳ஈ֊
w $PNNJU鱚鲑鱤7JFXߏ鲗ɺදࣔը໘
鱭鱜鱫ඳը鱞鲐
w 7JFX鱳ॏ鱲߹鲔鱠ɺ鲯鳛鳁鲞ɺ鲚鳃
鳙鱅鲯鳟鳫鱯鱮
w 3FOEFSTFSWFS鱴"QQ鱭鱴ผ鳏鳥鲳鲱
鱥鱑ɺ։ൃऀ鱳
8/19
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දࣔ
w 3FOEFS-PPQ鱳ஈ֊
w 鳤鳫鲸鳢鳫鲨鱚鲑鱤鲇鱳鲗දࣔ
9/19
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ฒྻ࣮ߦ
w 3FOEFS-PPQ鱴ฒྻ࣮ߦ鱚鲑鲐
w 鲸鳎鳣鳈鲻鳍鲙鳢鳫鲨
w දࣔ鱳ཪ鱬3FOEFS鳍鲟鱅鲲
w 3FOEFS鱳ཪ鱬$PNNJU鳍鲟鱅鲲
w ֤鳍鲟鱅鲲鱬੍࣌ؒݶ鲗क鲐ඞཁ鱑鱇鲐
w क鲎鱯鱉鱭)JUDI鱑ൃੜ鱞鲐
10/19
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ڐ༰͞ΕΔൣғ
w )JUDIUJNFSBUJP
w ඵ鱇鱤鲏ԿNT鱳IJUDI鱑鱇鲐鱐
w NTT鱑ཧ
w NTTҎԼ鱯鲎(PPE
w 鱩鲃鲏ඵ鱰ճఔ鱯鲎େৎ
w 鱢鲑鲗鱍鲐鱭ཁௐࠪ
11/19
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)JUDIͷௐࠪ
w *OTUSVNFOUT鲗鱨鱫ௐࠪ鱬鱒鲐
w ӈ鱳ྫ鱬鱴ɺ$PNNJU鳍鲟鱅鲲鱰࣌ؒ鱑
鱐鱐鱨鱫鱉鲐
w ۩ମత鱰ԿNT鱐鱐鱨鱫鱉鲐鱐鲇ݟ鲑鲐
12/19
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ͷॲཧΛ୳͢
w 鱚鲎鱰5JNF1SPpMFS鱬鱮鱳ؔ鱬࣌ؒ
鱑鱐鱐鱨鱫鱉鲐鱐ݟ鲑鲐
13/19
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ͷॲཧΛվળ͢Δ
w $PMMFDUJPO7JFX$FMM鱬鱑鱇鱨鱤
w prepareForReuse鱬ɺ$FMM鱳
7JFX鲗আ鱜鱫ੜ鱜鱯鱏鱜鱫鱉鱤
w 7JFX鲗࠶ར༻鱞鲐鲍鱋มߋ鱞鲑鱵鲍鱉
14/19
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$PNNJU)JUDIͷճආ
w લड़鱳)JUDI鱴$PNNJU鳍鲟鱅鲲鱬ൃ
ੜ鱜鱤
w $PNNJU鳍鲟鱅鲲鱬ؾ鲗鱩鱖鲐鱾鱒鱘鱭
鱴ଞ鱰鲇鱇鲐
w ྫ鳤鲜鲚鲞鳀ߋ৽鱳鱭鱒ɺ
layoutIfNeeded鱳༻鲗ආ鱖鱫
setNeedsLayout鱳༻鱑鱏鱞鱞鲆
15/19
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0⒎TDSFFO1BTT
w 3FOEFS鳍鲟鱅鲲鱬࣌ؒ鱑鱐鱐鲐ࣄྫ
w ӈ鱳ྫ鱬鱴ɺӨ鱳ܗ鲗ௐ鱾鲐鱤鲆鱰ผ鱳
ॴ鱰ਤܗ鲗ඳը鱜鱫鱉鲐
16/19
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3FOEFSͷΛൃݟ
w 9DPEF鱳7JFX%FCVHHFS鱬Օॴ鱭
վળํ๏鲗ࢦఠ鱜鱫鱔鲑鲐
w ӈ鱳ྫ鱬鱴ɺӨ鱳ඳը鱬鱑ࢦఠ鱚鲑
鱫鱉鲐
w վળํ๏鱭鱜鱫shadowPath鱳ࢦఆ鱑
ఏҊ鱚鲑鱫鱉鲐
17/19
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ࢦఠՕॴͷվળ
w ఏҊ鱚鲑鱤鱭鱏鲏shadowPath鲗໌ࣔ
త鱰ࢦఆ鱞鲐
w 鱘鲑鱬0GGTDSFFO1BTT鲗ݮ鲎鱜鱫
3FOEFS鳍鲟鱅鲲鱳ॲཧ࣌ؒ鱑վળ鱜鱤
18/19
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ࢀߟʢ5FDI5BMLTʣ
w 6*鲚鳃鳙鱅鲯鳟鳫鱳鲏鱏鲍鱸鳤鳫鲸鱅鳣鱅鳏鱰ର鱞鲐ݕ౼
ʢ&YQMPSF6*"OJNBUJPO)JUDIFTBOE5IF3FOEFS-PPQʣ
w 鲫鳗鲻鳀鳍鲟鱅鲲鱬鱳鲏鲗ݟ鱩鱖मਖ਼鱞鲐ʢ'JOEBOE'JY
)JUDIFTJOUIF$PNNJU1IBTFʣ
w 鳤鳫鲸鳢鳫鲨鳍鲟鱅鲲鱬鱳鲏鲗ඥղ鱒ഉআ鱞鲐ʢ%FNZTUJGZ
BOE&MJNJOBUF)JUDIFTJOUIF3FOEFS
19/19