how can I hide my UIPickerView on viewdidload & show it on buttonclick? [closed]

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how can I hide my UIPickerView on viewdidload & show it on buttonclick?

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In your ViewDidLoad method you'll hide it by simply setting its hidden property to true:

myPickerView.hidden = YES;

Then in your button's TouchUpInside event you simply set the pickerView's hidden property to false:

myPickerView.hidden = NO;

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use in viewDidLoad

[myPickerView removeFromSuperView];

and on buttonClick

[self.view addSubView:myPickerView];