problem in changing size of uialertview
20,223
Solution 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.
Solution 2
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];
Solution 3
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.
Solution 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
Author by
mrugen munshi
Updated on July 21, 2022Comments
-
mrugen munshi almost 2 years
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 .
-
mrugen munshi over 13 yearshere i want to change the width of the alert view how can i change that ,i am able to change the height but dont know how to change width.
-
ahmet emrah over 13 yearsWell my answer still applies you can change width after the call to [find show], and the result is still ugly and you shoud still use actionsheets
-
roocell over 12 yearsthis just changes the uiwindow for me (ie - the textfield 'message' inside doesn't resize)
-
AWrightIV over 12 yearsNope. This shrinks the contents of the alert view, distorting the text and everything.
-
johnnieb over 11 years@rocell I have a similar problem. The subviews don’t resize properly.
-
Gajendra K Chauhan almost 11 years@ahmetemrah. Making customization of alertview. Is it ok with apple rule. I mean what about approvel or rejection. Can I customize alert view?