move up UIToolbar

Question

I have a UIToolbar at bottom of my view, and I have a UITextField in this toolbar. When I begin editing this field, it is hidden behind the keyboard. To see what I\'ve typed

Answer 1

Here is a more elegant solution using uiview category

#import 


@interface UIView(AnimationUtils)
-(void)scrollControlToCenter:(UIView *)view;
-(void)scrollViewToOriginalPosition;
@end



#import "UIView+AnimationUtils.h"


@implementation UIView(AnimationUtils)
#pragma mark ScrollView Methods

//Method Called whenever keyboard appears
- (void)scrollControlToCenter:(UIView *)view {  
    if([view isKindOfClass:[UITextField class]]){
        CGRect viewFrame = [view frame];
        float verticalDistance = 216.0f - viewFrame.origin.y - (2*viewFrame.size.height);
        if(viewFrame.size.height >= (460 - 216)/2){
            verticalDistance = 0;
        }
        [UIView beginAnimations:@"ScrollToCenter" context:nil];
        [UIView setAnimationDuration:0.5];
        [self setFrame:CGRectMake(0, verticalDistance, self.frame.size.width, self.frame.size.height)];
        [UIView commitAnimations];
    }else if([view isKindOfClass:[UITextView class]]){
        [UIView beginAnimations:@"ScrollToTop" context:nil];
        [UIView setAnimationDuration:0.5];
        UIView *viewBG = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
        [viewBG setTag:5];
        [viewBG setBackgroundColor:[UIColor blackColor]];
        [viewBG setAlpha:0.75];
        [self addSubview:viewBG];
        [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, view.frame.size.height)];
        [self setFrame:CGRectMake(0, -view.frame.origin.y , self.frame.size.width, self.frame.size.height)];
        [self insertSubview:view atIndex:[self.subviews count] + 1];
        [UIView commitAnimations];
    }

}
-(void)scrollViewToOriginalPosition{
    [UIView beginAnimations:@"ScrollToOriginal" context:nil];
    [UIView setAnimationDuration:0.5];
    for(UIView *view in self.subviews){
        if(view.tag == 5){
            [view removeFromSuperview];
        }
    }
    [self setFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
    [UIView commitAnimations];  

}

#pragma mark -
@end