- (void)viewDidLoad
{
[super viewDidLoad];
[self setTitle:#"myTitle"];
UIImageView *titleLabel = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"myImage.PNG"]];
titleLabel.frame = CGRectMake(0, 0, 120, 40);
self.navigationItem.titleView = titleLabel;
}
UIImageView *titleLabel = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"nature.jpeg"]];
titleLabel.frame = CGRectMake(0, 0, 120, 40);
titleLabel.contentMode = UIViewContentModeRight;
self.navigationItem.titleView = titleLabel;
I think the best is to use UIImageView contentMode property.
You can use like this:
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0,320,480)];
imageView.contentMode = UIViewContentModeLeft;
It should be ok.
Related
I want to give a background image to my UITableView, so I tried this method:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
UIImageView *v = [[UIImageView alloc] initWithFrame:self.view.bounds];
[v setImage:[UIImage imageNamed:#"Background.png"]];
[self.view addSubview:v];
[self.view sendSubviewToBack: v];
...
}
This works fine. However, after pushViewController, this method doesn't work anymore (why?). So I changed a method:
- (void)viewDidLoad
{
[super loadView];
// Do any additional setup after loading the view from its nib.
self.tableView.backgroundView = nil;
self.tableView.backgroundColor = [[UIColor alloc]initWithPatternImage:[UIImage imageNamed:#"Background.png"]];
...
}
This can work, but the result is not what I expected. Somehow the background picture changes its size (like a partial enlargement), and the background of cells is darker than the previous one.
Anyone knows the reason? I've been stuck with this problem for a long time.
Thanks a lot!
Use this:
UIColor *background = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:#"TableBackground.jpg"]];
self.tableView.backgroundColor = background;
[background release];
Edit:
UIImage *myImage = [[UIImage alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
myImage.image = [UIImage imageNamed:#"TableBackground.jpg"];
UIColor *background = [[UIColor alloc] initWithPatternImage:myImage];
self.tableView.backgroundColor = background;
[background release];
Try This Code i am sure it'll work
UIImage * targetImage = [UIImage imageNamed:#"coloured_flower.jpg"];
UIGraphicsBeginImageContextWithOptions(tableView.frame.size, NO, 0.f);
[targetImage drawInRect:CGRectMake(0.f, 0.f, tableView.frame.size.width, tableView.frame.size.height)];
UIImage * resultImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
tableView.backgroundColor = [UIColor colorWithPatternImage:resultImage];
UITableView *tblView=[[UITableView alloc] init];
[tblView setFrame:CGRectMake(0, 0, 320, 300)];
UIImageView *imgView=[[UIImageView alloc] initWithFrame:tblView.frame];
[imgView setImage:[UIImage imageNamed:#"cinemax.jpg"]];
tblView.backgroundView=imgView;
[self.view addSubview:tblView];
I'm trying to add a UIToolbar that shows the user karma in a NavigationBar. The problem I have is that the colors are not exactly equals, as you can see at the photo.
So, any idea How could I resolve this? Here is the code:
- (void)viewDidLoad
{
[super viewDidLoad];
UIToolbar *tools = [[UIToolbar alloc]
initWithFrame:CGRectMake(0.0f, 0.0f, 80.0f, 45.00f)];
UILabel *karma = [[UILabel alloc] initWithFrame:CGRectMake(30.0f, 0.0f, 40.0f, 44.00f)];
karma.text = [[NSUserDefaults standardUserDefaults] stringForKey:#"karma"];
karma.font = [UIFont fontWithName:#"Helvetica" size:(14.0)];
karma.textColor = [UIColor colorWithRed:(255.0) green:(255.0) blue:(255.0) alpha:1];
karma.backgroundColor = [UIColor colorWithRed:(64/255.0) green:(64/255.0) blue:(64/255.0) alpha:0];
UIImage *image = [UIImage imageNamed:#"ic_people.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
imageView.frame = CGRectMake(0.0f, 7.5f, 30.0f, 30.00f);
// Add Pin button.
[tools setBarStyle: UIBarStyleDefault];
[tools addSubview:karma];
[tools addSubview:imageView];
// Add toolbar to nav bar.
UIBarButtonItem *karmaNav = [[UIBarButtonItem alloc] initWithCustomView:tools];
self.navigationItem.rightBarButtonItem = karmaNav;
...
Thank you.
Why not embed your karma label and image inside of a UIView instead of a UIToolbar. Then, you'd be able to set the background color of that UIView to clearColor.
Something like this:
UIView *tools = [[UIView alloc]
initWithFrame:CGRectMake(0.0f, 0.0f, 80.0f, 45.00f)];
tools.backgroundColor = [UIColor clearColor];
UILabel *karma = [[UILabel alloc] initWithFrame:CGRectMake(30.0f, 0.0f, 40.0f, 44.00f)];
karma.text = [[NSUserDefaults standardUserDefaults] stringForKey:#"karma"];
karma.font = [UIFont fontWithName:#"Helvetica" size:(14.0)];
karma.textColor = [UIColor colorWithRed:(255.0) green:(255.0) blue:(255.0) alpha:1];
karma.backgroundColor = [UIColor colorWithRed:(64/255.0) green:(64/255.0) blue:(64/255.0) alpha:0];
UIImage *image = [UIImage imageNamed:#"ic_people.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
imageView.frame = CGRectMake(0.0f, 7.5f, 30.0f, 30.00f);
[tools addSubview:karma];
[tools addSubview:imageView];
UIBarButtonItem *karmaNav = [[UIBarButtonItem alloc] initWithCustomView:tools];
self.navigationItem.rightBarButtonItem = karmaNav;
Why is this image not being added to my UIScrollView? A white screen is being displayed:
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(self.scrollView.frame.size.width * 1, 0, self.scrollView.frame.size.width, self.scrollView.frame.size.height)];
imageView.backgroundColor = [UIColor redColor];
[imageView setImage:[UIImage imageNamed:#"placeholder.png"]];
[self.scrollView addSubview:imageView];
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * self.urlArray.count, self.scrollView.frame.size.height);
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.scrollView.frame.size.width, self.scrollView.frame.size.height)];
Ans also give proper contentSize of UIScrollView and add UIScrollView to your UIView
I have a custom UIView. So myView class extend UIView. In initWithFrame:(CGRect)frame method I set UIImageView for my UIView as a background image.
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
self.bgImage = [[[UIImageView alloc] initWithFrame:
CGRectMake(0, 0, frame.size.width , frame.size.height)] autorelease];
int stretchableCap = 20;
UIImage *bg = [UIImage imageNamed:#"myImage.png"];
UIImage *stretchIcon = [bg
stretchableImageWithLeftCapWidth:stretchableCap topCapHeight:0];
[self.bgImage setImage:stretchIcon];
}
return self;
}
So when I create my view everything is fine.
MyCustomView *customView = [[MyCustomView alloc] initWithFrame:CGRectMake(10, 10, 100, 50)];
But if I want to change my view size to bigger or smaller:
customView.frame = CGRectMake(10, 10, 50, 50)];
then I have the problem with my background image. Because it's size didn't changed. What to do ? Ho to change bg image size together with view frame ?
Try setting the autoresizing mask of the UIImageView, it will resize according to the size changes of the super view.
My suggestion is use update function to update your custom view when you want to change the frame:
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self UpdateViewWithFrame:frame];
}
return self;
}
- (void)UpdateViewWithFrame:(CGRect)frame
{
self.frame = frame;//set frame
if(!self.bgImage)
{
//initialize your imageview
self.bgImage = [[[UIImageView alloc] initWithFrame:
CGRectMake(0, 0, frame.size.width , frame.size.height)] autorelease];
}
int stretchableCap = 20;
UIImage *bg = [UIImage imageNamed:#"myImage.png"];
UIImage *stretchIcon = [bg
stretchableImageWithLeftCapWidth:stretchableCap topCapHeight:0];
[self.bgImage setImage:stretchIcon];
}
When you want change frame , just call this function.Have a try man.
Set the required Autoresizingmask property attributes for the imageview correctly as it must be adjusted along with the view frames.
So the suggestions was right. I should add autoresizing mask. Now my initWithFrame looks like that:
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
self.bgImage = [[[UIImageView alloc] initWithFrame:
CGRectMake(0, 0, frame.size.width , frame.size.height)] autorelease];
int stretchableCap = 20;
UIImage *bg = [UIImage imageNamed:#"myImage.png"];
UIImage *stretchIcon = [bg
stretchableImageWithLeftCapWidth:stretchableCap topCapHeight:0];
[self.bgImage setImage:stretchIcon];
self.bgImage.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
self.autoresizesSubviews = YES;
}
return self;
}
I need so set the name of the UIViewController and an image to the navigationBar. So far I am able to display the image, but the title is of course missing.
// show image
UIImage *image = [UIImage imageNamed: #"bar_icon.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage: image];
imageView.frame = CGRectMake(0, 0, 40, 40);
self.navigationItem.titleView = imageView;
[imageView release];
Thanks for your help,
BR, doonot
// show image
UIImage *image = [UIImage imageNamed: #"bar_icon.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage: image];
imageView.frame = CGRectMake(70, 0, 40, 40);
// label
UILabel *tmpTitleLabel = [[UILabel alloc] initWithFrame:CGRectMake(120, 0, 100, 40)];
tmpTitleLabel.text = #"Mannschaft";
tmpTitleLabel.backgroundColor = [UIColor clearColor];
tmpTitleLabel.textColor = [UIColor whiteColor];
CGRect applicationFrame = CGRectMake(0, 0, 300, 40);
UIView * newView = [[[UIView alloc] initWithFrame:applicationFrame] autorelease];
[newView addSubview:imageView];
[newView addSubview:tmpTitleLabel];
self.navigationItem.titleView = newView;
[imageView release];
[tmpTitleLabel release];
Create a UIView with 2 subview: a UIImageView and a UILabel. Set the titleView to the UIView.