How can i increase the button width dynamically depends on the text size in iphone?

Question

I have created 10 buttons programmatically and set the titles in the button. Now i want to increase the button frame size dynamically,its depends on the text.

I given so

Answer 1

Copy an pasted from Apples Bubble Level source code.

This is the line you want

UIImage *newImage = [image stretchableImageWithLeftCapWidth:10 topCapHeight:10];

full code here

- (UIButton *)buttonWithTitle:(NSString *)title target:(id)target selector:(SEL)inSelector frame:(CGRect)frame image:(UIImage*)image {
    UIButton *button = [[UIButton alloc] initWithFrame:frame];
    button.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
    button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
    [button setTitle:title forState:UIControlStateNormal & UIControlStateHighlighted & UIControlStateSelected];
    [button setTitleColor:[UIColor blackColor] forState:UIControlEventTouchDown];
    UIImage *newImage = [image stretchableImageWithLeftCapWidth:10 topCapHeight:10];
    [button setBackgroundImage:newImage forState:UIControlStateNormal];
    [button addTarget:target action:inSelector forControlEvents:UIControlEventTouchUpInside];
    button.adjustsImageWhenDisabled = YES;
    button.adjustsImageWhenHighlighted = YES;
    [button setBackgroundColor:[UIColor clearColor]];   // in case the parent view draws with a custom color or gradient, use a transparent color
    [button autorelease];
    return button;
}

Answer 2

I got the answer and my working code is,

        float x=0;

        for(int i = 100; i < 110; i++)
         {
             btn = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];

             UIImage * img = [UIImage imageNamed:@"Round_Rect4.png"];

            [btn setBackgroundImage:img forState:UIControlStateSelected];

            titleString = [titleArray objectAtIndex:i-100];  // get button title

           CGSize fontSize = [titleString sizeWithFont:[UIFont systemFontOfSize:12.0]];

            CGRect currentFrame = btn.frame;

            CGRect buttonFrame = CGRectMake(x, currentFrame.origin.y, fontSize.width + 22.0, fontSize.height + 12.0);

           [btn setFrame:buttonFrame];

            x = x + fontSize.width + 35.0;

            [btn setTitle:titleString forState: UIControlStateNormal];

            [btn setTag:i];

            [self.view addSubview:btn];

}

Answer 3

[btn sizeToFit]

Answer 4

Very simple solution:

TestButton.titleEdgeInsets = UIEdgeInsetsMake(0, 8, 0, 8);
[TestButton sizeToFit];
float width  =   TestButton.frame.size.width + 20;
TestButton.frame = CGRectMake(TestButton.frame.origin.x, TestButton.frame.origin.y, width, 40);