android - Set the number of visible items in a NumberPicker -


i have simple numberpicker this:

numberpicker

and wondering how can make show more elements above , below selected element.

for example, in picture can see "9" above selected element "10", , "11" right below it.

i change number of visible rows shows more elements "7, 8, 9", selected element "10", "11, 12, 13".

this code:

<numberpicker     android:id="@+id/picker"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:layout_margintop="15dp"     android:gravity="center"     android:textcolor="@android:color/white"     android:textsize="16sp"     />

and i've tried change setting android:layout_height match_parent , big number (e.g. 500dp) doesn't seen work...

finally able find workaround problem. need extend numberpicker class , need change 

private static final int selector_wheel_item_count = 3;

from 3 more wish, display according available space.

you can find library , sample here.


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