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01 Android UI
1.1 UI
鐢ㄦ埛鐣岄潰錛圲ser Interface錛岀畝縐?UI錛屼害縐頒嬌鐢ㄨ€呯晫闈級鏄郴緇熷拰鐢ㄦ埛涔嬮棿榪涜浜や簰鍜屼俊鎭氦鎹?/div>
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1.2 Android UI
Android搴旂敤鐣岄潰鍖呭惈鐢ㄦ埛鍙煡鐪嬪茍涓庝箣浜や簰鐨勬墍鏈夊唴瀹廣€侫ndroid 鎻愪緵涓板瘜澶氭牱鐨勯緗?UI 緇?浠訛紝渚嬪緇撴瀯鍖栧竷灞€瀵硅薄鍜?UI 鎺т歡錛屾?zhèn)ㄥ彲浠ュ埄鐢q欎簺緇勪歡涓烘?zhèn)ㄧ殑搴旂敤鏋勫缓鍥惧舰鐣岄潰銆侫ndroid 榪?/div>
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02 甯冨眬
甯冨眬(layout)鍙畾涔夊簲鐢ㄤ腑鐨勭晫闈㈢粨鏋勶紙渚嬪 Activity 鐨勭晫闈㈢粨鏋勶級銆傚竷灞€涓殑鎵€鏈夊厓绱犲潎浣跨敤 View 鍜?ViewGroup 瀵硅薄鐨勫眰嬈＄粨鏋勮繘琛屾瀯寤恒€俈iew 閫氬父緇樺埗鐢ㄦ埛鍙煡鐪嬪茍榪涜浜や簰鐨勫唴瀹廣€傜劧鑰岋紝
ViewGroup 鏄笉鍙瀹瑰櫒錛岀敤浜庡畾涔?View 鍜屽叾浠?ViewGroup 瀵硅薄鐨勫竷灞€緇撴瀯銆?/div>
2.1 甯冨眬鐨勭粨鏋?/div>
瀹氫箟鐣岄潰甯冨眬鐨勮鍥懼眰嬈＄粨鏋勫浘紺?
View 瀵硅薄閫氬父縐頒負“寰歡”錛屽彲浠ユ槸浼楀瀛愮被涔嬩竴錛屼緥濡?Button 鎴?TextView 銆?ViewGroup 瀵硅薄閫氬父縐頒負“甯冨眬”錛屽彲浠ユ槸鎻愪緵鍏朵粬甯冨眬緇撴瀯鐨勪紬澶氱被鍨嬩箣涓€錛屼緥濡?/div>
LinearLayout 鎴?ConstraintLayout 銆?/div>
2.2 澹版槑甯冨眬
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鎮(zhèn)ㄤ篃鍙嬌鐢?Android Studio 鐨?Layout Editor錛屽茍閲囩敤鎷栨斁鐣岄潰鏉ユ瀯寤?XML 甯冨眬銆?/div>
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toTopOf="parent" />
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