Viewの再利用方法まとめ

potatotips#15でのLTです。
http://connpass.com/event/12140/

Transcript

1. 7JFXͷ࠶ར༻ํ๏·ͱΊ ʢ໦ʣ
   খ੢
   ༟հ
2. !LPOJGBS w "OESPJE࡞ͬͯ·͢ɻ
   w ࠷ۙ͸8FCɻ
   w ಙౡݝࠤಹՏ಺ଜग़਎ɻ
 4BOTBOਆࢁΦϑΟεͷྡͷଜ
3. 7JFXͷ࠶ར༻ํ๏  EJNFOTYNMɺDPMPSTYNM
    ESBXBCMF
   YNM
    TUZMFTYNM
    JODMVEF
   
    $VTUPN7JFX
4. EJNFOTYNMɺDPMPSTYNM <TextView android:textColor="#757575" android:gravity="center_vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:textSize="12dp" />
5. EJNFOTYNMɺDPMPSTYNM <TextView android:textColor="#757575" android:gravity="center_vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:textSize="12dp" />
6. EJNFOTYNMɺDPMPSTYNM <TextView android:textColor="@color/grey600" android:gravity="center_vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:textSize="@dimen/text_small" /> <color name=“grey600">#757575</color> <dimen name="text_small">12sp</dimen>
7. ESBXBCMF <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/white"> … </RelativeLayout>
8. ESBXBCMF <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/white"> … </RelativeLayout>
9. ESBXBCMF <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable_bg_feedback"> … </RelativeLayout>
10. ESBXBCMF <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.~~android"> ! <item android:state_pressed="true"> <shape android:shape="rectangle"> <solid android:color="#0a000000" /> </shape> </item> ! </selector>
11. ESBXBCMF <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.~~android"> ! <item android:state_pressed="true"> <shape android:shape="rectangle"> <solid android:color="#0a000000" /> </shape> </item> ! </selector> ࢖͑ΔTUBUF͸ɺ4UBUF-JTU%SBXBCMFͷϖʔδࢀরɻ
12. TUZMFTYNM <TextView android:textColor="@color/grey600" android:gravity="center_vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:textSize="@dimen/text_small" />
13. TUZMFTYNM <TextView android:textColor="@color/grey600" android:gravity="center_vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:maxLines="2" android:textSize="@dimen/text_small" />
14. TUZMFTYNM <TextView style="@style/TextSub" android:layout_width="match_parent" android:layout_height="wrap_content" /> <style name="TextSub"> <item name="android:textSize">@dimen/text_small</item> <item name="android:textColor">@color/grey600</item> <item name=“android:gravity">center_vertical</item> <item name="android:maxLines">2</item> </style>
15. TUZMFTYNM TUZMFT͸ෳ਺ͷYNMʹ෼͚ͯ؅ཧͨ͠ํ͕͍͍͔ ΋͠Ε·ͤΜɻ
    ྫ
    TUZMFT@IPNFYNMɺTUZMFT@EFUBJMTYNM
    ! ৄ͘͠͸<຋༁>
    BOESPJE
    CFTU
    QSBDUJDFΛࢀরɻ
16. JODMVEF
     <RelativeLayout android:layout_width="match_parent" android:layout_height=“wrap_content”> ! <ImageView … /> ! <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView … /> <TextView … /> <TextView … /> </RelativeLayout> ! </RelativeLayout>
17. JODMVEF
     <RelativeLayout android:layout_width="match_parent" android:layout_height=“wrap_content”> ! <ImageView … /> ! <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView … /> <TextView … /> <TextView … /> </RelativeLayout> ! </RelativeLayout>
18. JODMVEF
     <RelativeLayout android:layout_width="match_parent" android:layout_height=“wrap_content”> ! <ImageView … /> ! <include layout=“@layout/part_character_info" /> ! </RelativeLayout> 7JFXͷωετ͕ଟ͘ͳΓ͕ͪͳͷͰɺNFSHFͷ࢖͍ํΛ֮͑ͯ ͓͘ͱΑ͍ɻ
    㱺
    8IBU
    JT
    UIF
    QVSQPTF
    PG
    "OESPJET
    UBH
    JO
    9.-
    MBZPVUT
19. $VTUPN7JFX <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"> ! <FrameLayout android:id="@+id/triangle" android:background=“@drawable/left_triangle" … /> ! <TextView android:id=“@+id/txt_balloon"
 android:background="@drawable/bg_word_balloon" … /> ! </RelativeLayout>
20. $VTUPN7JFX <com.konifar.whovoice.views.WordBalloonView android:id="@+id/balloon_word" android:layout_width="match_parent" android:layout_height=“wrap_content" />
21. $VTUPN7JFX public class WordBalloonView extends RelativeLayout { ... public WordBalloonView(Context context, AttributeSet attrs) { super(context, attrs); inflate(context, R.layout.ui_word_balloon, this); ButterKnife.inject(this); ! TypedArray a = context.obtainStyledAttributes( attrs, R.styleable.WordBalloonView); try { balloonText = a.getString( R.styleable.WordBalloonView_balloonText); } finally { a.recycle(); } ! mTxtBalloon.setText(balloonText); } ! public void setBalloonText(String balloonText) { mTxtBalloon.setText(balloonText); } }
22. $VTUPN7JFX public class WordBalloonView extends RelativeLayout { ... public WordBalloonView(Context context, AttributeSet attrs) { super(context, attrs); inflate(context, R.layout.ui_word_balloon, this); ButterKnife.inject(this); ! TypedArray a = context.obtainStyledAttributes( attrs, R.styleable.WordBalloonView); try { balloonText = a.getString( R.styleable.WordBalloonView_balloonText); } finally { a.recycle(); } ! mTxtBalloon.setText(balloonText); } ! public void setBalloonText(String balloonText) { mTxtBalloon.setText(balloonText); } }
23. $VTUPN7JFX public class WordBalloonView extends RelativeLayout { ... public WordBalloonView(Context context, AttributeSet attrs) { super(context, attrs); inflate(context, R.layout.ui_word_balloon, this); ButterKnife.inject(this); ! TypedArray a = context.obtainStyledAttributes( attrs, R.styleable.WordBalloonView); try { balloonText = a.getString( R.styleable.WordBalloonView_balloonText); } finally { a.recycle(); } ! mTxtBalloon.setText(balloonText); } ! public void setBalloonText(String balloonText) { mTxtBalloon.setText(balloonText); } }
24. $VTUPN7JFX public class WordBalloonView extends RelativeLayout { ... public WordBalloonView(Context context, AttributeSet attrs) { super(context, attrs); inflate(context, R.layout.ui_word_balloon, this); ButterKnife.inject(this); ! TypedArray a = context.obtainStyledAttributes( attrs, R.styleable.WordBalloonView); try { balloonText = a.getString( R.styleable.WordBalloonView_balloonText); } finally { a.recycle(); } ! mTxtBalloon.setText(balloonText); } ! public void setBalloonText(String balloonText) { mTxtBalloon.setText(balloonText); } }
25. $VTUPN7JFX public class WordBalloonView extends RelativeLayout { ... public WordBalloonView(Context context, AttributeSet attrs) { super(context, attrs); inflate(context, R.layout.ui_word_balloon, this); ButterKnife.inject(this); ! TypedArray a = context.obtainStyledAttributes( attrs, R.styleable.WordBalloonView); try { balloonText = a.getString( R.styleable.WordBalloonView_balloonText); } finally { a.recycle(); } ! mTxtBalloon.setText(balloonText); } ! public void setBalloonText(String balloonText) { mTxtBalloon.setText(balloonText); } }
26. ·ͱΊ EJNFOTYNM
    DPMPSTYNM
    ESBXBCMFYNM Կ౓΋ग़ͯ͘Δ ϨΠΞ΢τ͔ TUZMFTYNM JODMVEF
     $VTUPN7JFX ෳ਺ͷ7JFXͰ ߏ੒͞Ε͍ͯΔ͔ ϩδοΫؚ͕· ΕΔ͔ ϨΠΞ΢τYNMʹ௚઀هड़ /P :FT /P :FT /P :FT σβΠϯʹ߹Θͤͯ࢖༻
27. ͋Γ͕ͱ͏͍͟͝·ͨ͠
    ٩ ๑❛ᴗ❛๑ ۶ גࣜձࣾحฌୂ
    ΤϯδχΞେืूதͰ͢