ScrollViewクラスとは？
状態:-
閲覧数:1,758
投稿日:2014-07-08
更新日:2018-07-04
スクロール表示
画面にレイアウトが収まらない場合、収まらない分をスクロールして表示するためのクラス
構成
java.lang.Object
↳ android.view.View
↳ android.view.ViewGroup
↳ android.widget.FrameLayout
↳ android.widget.ScrollView
↳ android.view.View
↳ android.view.ViewGroup
↳ android.widget.FrameLayout
↳ android.widget.ScrollView
レイアウト例
構成
・1つのScrollViewの中に、1つのRelativeLayoutを配置
ScrollView
┗RelativeLayout
│├android:layout_width="match_parent"
│├android:layout_height="wrap_content"
│├android:paddingBottom="@dimen/activity_vertical_margin"
│├android:paddingLeft="@dimen/activity_horizontal_margin"
│├android:paddingRight="@dimen/activity_horizontal_margin"
│└android:paddingTop="@dimen/activity_vertical_margin"
│
├TextView
│ ├android:id="@+id/LongText"
│ ├android:layout_width="match_parent"
│ ├android:layout_height="wrap_content"
│ └android:text="@string/hello_world"
│
└Button
├android:layout_width="match_parent"
├android:layout_height="wrap_content"
├android:layout_below="@+id/LongText" … LongTextで指定した文字列の下
└android:text="Button"
コード
▼/res/layout/activity_main.xml
<ScrollView android:layout_width="match_parent" android:layout_height="match_parent"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity"> <!-- TODO: LongText をスクロールできるようにする --> <!-- TODO: LongText の下に 1 つ Button を配置する --> <TextView android:id="@+id/LongText" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hello_world"/> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/LongText" android:text="Button"/> </RelativeLayout></ScrollView> |
▼/res/values/dimens.xml
<resources> <!-- Default screen margins, per the Android Design guidelines. --> <dimen name="activity_horizontal_margin">16dp</dimen> <dimen name="activity_vertical_margin">16dp</dimen></resources> |
▼/res/values/strings.xml
<string name="hello_world">Hello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! 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This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! Have fun \nHello world! My name is Android. This app is written in Java, and running on Dalvik VM, not Sun VM. Nice to see you! 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