ScrollView is a special type of FrameLayout in that it enables users to scroll through a list of view that occupy more space than the physical display. The ScrollView can contain only one child view or ViewGroup , which normally is a LinearLayout.
ScrollView gives us a scrollable layout for large data. Please consider the following XML layout to understand ScrollView:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 1"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 2"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 3"
/>
<EditText
android:layout_width="fill_parent"
android:layout_height="250dp"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 4"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 5"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 6"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 7"
/>
</LinearLayout>
</ScrollView>
ScrollView gives us a scrollable layout for large data. Please consider the following XML layout to understand ScrollView:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 1"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 2"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 3"
/>
<EditText
android:layout_width="fill_parent"
android:layout_height="250dp"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 4"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 5"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 6"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 7"
/>
</LinearLayout>
</ScrollView>
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