如何使用UIPickerView

Question

我已经新使用UIPickerView，而显示UIPickerView是否需要在同一视图中隐藏所有其他控件，因为我得到这样的问题。请看图片

后面的按钮显示正面。如何避免这个问题。任何想法？

Answer 1

[self.view bringSubviewToFront:yourPickerView]; 

Answer 2

嗨，我想你必须设置选取器视图的框架。下面的代码是uipickerview，如你所愿修改。

- （IBAction为）pickButtonpressed：（ID）发送方

{

UIActionSheet * asheet = [[UIActionSheet的alloc] initWithTitle：@ “选择距离” 委托：自cancelButtonTitle：@ “取消” destructiveButtonTitle：无otherButtonTitles：@“Select”，nil];

[asheet setTag:200]; 

UIPickerView *statePicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 40, 0, 0)]; 

statePicker.delegate=self; 

statePicker.showsSelectionIndicator = YES; 

[statePicker setTag:11]; 

[asheet addSubview:statePicker]; 

[asheet showInView:[self.view superview]]; //note: in most cases this would be just self.view, but because I was doing this in a tabBar Application, I use the superview. 

[asheet setBounds:CGRectMake(0,0,320, 700)]; 

[asheet setFrame:CGRectMake(0, 117, 320, 383)]; 

NSArray *subviews = [asheet subviews]; 

[[subviews objectAtIndex:1] setFrame:CGRectMake(20, 266, 280, 46)]; 

[[subviews objectAtIndex:2] setFrame:CGRectMake(20, 317, 280, 46)]; 

}