How to add info button to UIToolbar

I need to add info button to toolbar.

can any one help me开发者_如何学Python to solve this.

Thanks in advance.

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You need to create a UIButton of type UIButtonTypeInfoLight (or, depending on your toolbar color UIButtonTypeInfoDark). You'd then use this button as the custom view for a UIBarButtonItem:

UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeInfoLight];
UIBarButtonItem *infoButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:infoButton] autorelease];
myToolbar.items = [NSArray arrayWithObjects:infoButtonItem, nil];

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Create the info image, then use -initWithImage:style:target:action:.