iphone - how to display previously selected value in UIPickerview selected bar -

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i displaying numbers 0 30 in uipickerview.

and call pickerview when tap on button.

when ever select 1 value in pickerview , tap on ok button quit pickerview.

for next time when ever tap on button open uipickerview need display previous selected value like this.

for example select 13 next time when open pickerview need display 13 on selected bar show in figure.

how can done.

can 1 please me.

thank u in advance.

save user selection somewhere , before show picker view set selection programmatically selectrow:incomponent:animated: method:

// create picker if needed [pickerview selectrow:13 incomponent:0 animated:no]; // show picker

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