problem in changing size of uialertview - iphone

Question

Hello
I am having a alertview and i want to change the size by cgrectmake property but it does not happen .
It just take the by default size.
i tried following code.
- (void)viewDidLoad {
[super viewDidLoad];
UIAlertView* find = [[[UIAlertView alloc] init]initWithFrame:CGRectMake(0,0,300,200)];
[find setDelegate:self];
[find setTitle:#"Sample Alert"];
[find setNeedsLayout];
[find show];
[find release];
}
Thanks in advance .

Answer 1

To achieve what you want, in your code, after:
[find show];
add:
find.frame = CGRectMake(0,0,300,200);
It's not pretty though, I suggest you use ActionSheets.

Answer 2

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Confirmation" message:#" Submit the answer " delegate:self cancelButtonTitle:#"NO" otherButtonTitles:#"YES", nil];
[alert show];
[alert release];
UILabel *theTitle = [alert valueForKey:#"_titleLabel"];
[theTitle setTextColor:[UIColor blackColor]];
UILabel *theBody = [alert valueForKey:#"_bodyTextLabel"];
[theBody setTextColor:[UIColor blackColor]];
UIImage *theImage = [UIImage imageNamed:#"blue-white-abstract-background.jpg"];
theImage = [theImage stretchableImageWithLeftCapWidth:10 topCapHeight:10];
CGSize theSize = [alert frame].size;
UIGraphicsBeginImageContext(theSize);
[theImage drawInRect:CGRectMake(0, 0, theSize.width, theSize.height)];
theImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//[[alert layer] setContents:[theImage CGImage]];
[[alert layer] setContents:[UIColor clearColor]];
This code does a lot of things to alertview and modify it to increase the size of the alert view.

Answer 3

This does the job pretty well, and does not look weird when the alert appear (ahmet emrah solution has a pretty bad side effect).
CGAffineTransform myTransform = CGAffineTransformMakeScale(1.0, 0.5f);
[alert setTransform:myTransform];

Answer 4

You can subclass the UIAlertView. I have done something like this, change it for your need.
Header file,
#import <Foundation/Foundation.h>
/* An alert view with a textfield to input text. */
#interface AlertPrompt : UIAlertView
{
UITextField *textField;
}
#property (nonatomic, retain) UITextField *textField;
#property (readonly) NSString *enteredText;
- (id)initWithTitle:(NSString *)title message:(NSString *)message delegate:(id)delegate cancelButtonTitle:(NSString *)cancelButtonTitle okButtonTitle:(NSString *)okButtonTitle;
#end
Source code,
#import "AlertPrompt.h"
#implementation AlertPrompt
static const float kTextFieldHeight = 25.0;
static const float kTextFieldWidth = 100.0;
#synthesize textField;
#synthesize enteredText;
- (void) drawRect:(CGRect)rect {
[super drawRect:rect];
CGRect labelFrame;
NSArray *views = [self subviews];
for (UIView *view in views){
if ([view isKindOfClass:[UILabel class]]) {
labelFrame = view.frame;
} else {
view.frame = CGRectMake(view.frame.origin.x, view.frame.origin.y + kTextFieldHeight , view.frame.size.width, view.frame.size.height);
}
}
CGRect myFrame = self.frame;
self.textField.frame = CGRectMake(95, labelFrame.origin.y+labelFrame.size.height + 5.0, kTextFieldWidth, kTextFieldHeight);
self.frame = CGRectMake(myFrame.origin.x, myFrame.origin.y, myFrame.size.width, myFrame.size.height + kTextFieldHeight);
}
- (id)initWithTitle:(NSString *)title message:(NSString *)message delegate:(id)delegate cancelButtonTitle:(NSString *)cancelButtonTitle okButtonTitle:(NSString *)okayButtonTitle
{
if (self = [super initWithTitle:title message:message delegate:delegate cancelButtonTitle:cancelButtonTitle otherButtonTitles:okayButtonTitle, nil])
{
// add the text field here, so that customizable from outside. But set the frame in drawRect.
self.textField = [[UITextField alloc] init];
[self.textField setBackgroundColor:[UIColor whiteColor]];
[self addSubview: self.textField];
// CGAffineTransform translate = CGAffineTransformMakeTranslation(0.0, 20.0);
// [self setTransform:translate];
}
return self;
}
- (void)show
{
[textField becomeFirstResponder];
[super show];
}
- (NSString *)enteredText
{
return textField.text;
}
- (void)dealloc
{
[textField release];
[super dealloc];
}
#end