Understanding Android UI Controls

In this article, we’ll discuss some of the most common Android UI controls.

As an Android user, you interact with various UI controls every day. From buttons and text fields to drop-down lists and progress bars, these controls are the backbone of the user interface in any Android app.



Android UI Controls

As an Android app developer, you know that UI controls are crucial elements in designing an attractive and user-friendly interface for your application.

The Android SDK provides a broad range of pre-built UI controls that you can use to create your app’s UI with a consistent look and feel on various devices.

These controls allow your app users to interact with your app’s interface, ranging from simple text and image display to complex data input and manipulation.

Some of the most common Android UI controls include:

UI ControlsOverview
TextViewText is displayed in user interfaces through the TextView control. A single-line or multi-line text can be displayed with various text formatting options, including bold, italic, and underlining.
EditTextThe EditText control is used to accept text input from users. Users can enter text and use various text formatting options such as password masking and autocomplete.
AutoCompleteTextViewAutoCompleteTextView is a subclass of EditText view in Android that provides auto-complete suggestions as the user types into it.
ButtonButton controls trigger actions in an app when pressed. It is one of the most commonly used controls in Android user interfaces.
ImageButtonSimilar to the Button control, the ImageButton displays an image instead of text. Apps commonly use it to display icons and other graphical elements.
ImageViewAn app uses the ImageView control to display images. In addition to supporting various image formats, it can display images from local files or URLs.
CheckBoxA CheckBox control represents a binary choice, such as yes/no. Pressing on an option allows the user to select or deselect it.
RadioButtonRadioButton controls represent mutually exclusive choices, such as selecting one option from a list. The user can select only one option at a time.
RadioGroupOne or more RadioButtons are grouped together by a RadioGroup.
ToggleButtonLike the CheckBox control, the ToggleButton allows the user to toggle between two states, such as on/off or true/false.
SpinnerDisplays a drop-down list of options using the Spinner control. It is often used in forms and other data entry screens where the user needs to select an option from a list.
ProgressBarThe ProgressBar control displays a visual indicator of ongoing task progress. It can be used to indicate the progress of tasks such as downloading files or uploading data.
SeekBarThe SeekBar control allows the user to select a value from a range by dragging a slider. It is often used for selecting values such as volume or brightness.
RatingBarThe RatingBar control allows the user to rate a particular item or object, such as a movie or restaurant. It displays a visual representation of the rating in the form of stars or other symbols.
DatePickerThe DatePicker control provides a calendar-based interface for selecting a date.
TimePickerThe TimePicker control provides a clock-based interface for selecting a time.

Below example demonstrates the use of Android UI controls:

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp">

<TextView
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Choose a fruit:" />

<RadioGroup
android:id="@+id/radioGroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">

<RadioButton
android:id="@+id/radioButton1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Apple" />

<RadioButton
android:id="@+id/radioButton2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Banana" />

<RadioButton
android:id="@+id/radioButton3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Orange" />
</RadioGroup>

<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Submit" />

</LinearLayout>

In this layout, we have a TextView that displays a prompt asking the user to choose a fruit. Below the TextView, we have a RadioGroup containing three RadioButton controls for the different fruit options.

Finally, we have a Button that the user can click to submit their choice.

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