Question

What is spinner? What is its role in dialog box?​

Answer 1

Explanation:

Spinners provide a quick way to select one value from a set. In the default state, a spinner shows its currently selected value. Touching the spinner displays a dropdown menu with all other available values, from which the user can select a new one.

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Answer 2

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A spinner is a graphical GUI widget that allows a user to modify the value in the adjacent text box by either clicking the up or down arrow, or holding the up or down arrow, thereby allowing the value to increase or decrease. If a user holds down the up arrow, then the text box value increases. If a user holds down the down arrow, the text box value decreases. The speed of the value change may increase as the button is held down.

Functionally, spinners are much like scrollbars, sliders, combo boxes or lists, but they are considered beneficial because they do not change the visible display or cover up other values on a screen.

A spinner is also known as a spinbox or spinner control.

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We can use a spinner and set the spinnerMode to dialog, and set the layout_width and layout_height to 0, so that the main view does not show, only the dialog (dropdown view). The advantage of this is we can customize our spinner any way we want.

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