I've a grouped UITableView which has been resized and rounded. I would like to place a view BEHIND this table.I've tried:
[self.tableView addSubview:backgroundView];
[self.tableView sendSubviewToBack:backgroundView];
but it didn't work. This is what I obtain:
I would like to have the background in place of the black space.
Any idea?
How about [self.tableView setBackgroundView:backgroundView];?
Bear with me I'm a beginner. I just ran into this problem and I found two solutions. In my case, I was using a UITableView object.
To begin, add the background image into your app's directory. I put mine in "Supporting Files"
You can add the image as a UIColor object:
...
[resultsTable setBackGroundColor:setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"background.jpg"]]];
...
The problem with this method is that it will repeat your background image because it's treating it as a pattern.
The better way:
// Create a string to store the path location of your image, otherwise you would have to provide an exact path name
NSString *backPath = [[NSBundle mainBundle] pathForResource:#"background"
ofType:#"jpg"];
// Create a UIImage Object to store the image.
UIImage *bgImage = [[UIImage alloc ] initWithContentsOfFile:backPath];
// Create a UIImageView which the TableView
UIImageView *bgView = [[UIImageView alloc]initWithImage:bgImage];
// Set your TableView's background property, it takes a UIView Obj.
[resultsTable setBackgroundView: bgView];
.....
Related
Hi Quick question really currently I'm trying to connect my image to my image view within Xcode and currently when I run the program y image appears but it does so in the top left hand corner, I just wanted to know what line of code I was missing in order to navigate my image directly into one of my images views.
Thanks
UIImageView *myImage = [[UIImageView alloc]
//Allocating space for the image
initWithImage:[UIImage imageNamed:#"TESTPIC.jpg"]];
//Selecting the image
[self.view addSubview:myImage];
//Displaying the Image
You can use the frame property of UIImageView. Please find the below code for more information.
UIImageView *myImage = [[UIImageView alloc]
//Allocating space for the image
initWithImage:[UIImage imageNamed:#"test.png"]];
myImage.frame = CGRectMake(your x position, your y position, myImage.frame.size.width, myImage.frame.size.height);
//Selecting the image
[self.view addSubview:myImage];
Hope it works.
I am trying to add an image as a background to a UILabel, but my UILabel's title cannot be seen, even though I tried to send the background image to the back. My code is below and any advice on how to help with this would be great, thanks!
UIImageView *labelBackground = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"image.png"]];
[myLabel addSubview:labelBackground];
[myLabel sendSubviewToBack:labelBackground];
myLabel.backgroundColor = [UIColor clearColor];
[myLabel setText:title];
When you add a view (your image view) as a subview to another view (your label), the subview will always be in front of its superview. They would either need to be siblings:
[myContainer addSubview:labelBackground];
[myContainer addSubview:myLabel];
or better yet, the label should be a subview of the image view:
[labelBackground addSubview:myLabel];
[myContainer addSubView:labelBackground];
Another solution might be to use your image as a background color for your label:
[myLabel setBackgroundColor:[UIColor colorWithPatternImage:myUIImage]];
But note that the image will be repeated instead of centered or stretched.
Try adding the UILabel as a subview of the UIImageView, rather than the other way around.
This will result in the UIImageView being the "container" of the label, and thus the label being on top of the UIImageView.
I have 8 images on my View. 4 on left n 4 on right side on the view. i need to match images every time from ones on left to ones on right. I have done this statically by creating 8 image views in the interface builder and connecting it to the outlets created. Now i have to dynamically randomize the image views so tat the match doesn't become obvious. like for the 1st left topmost imageview the match will always be at the bottom most in the right side image view. i tried creating image views in 2 formats
UIImageView *image1 = [[UIImageView alloc] initWithFrame:CGRect(111, 135,140,130)];
image1.image = [UIImage imageNamed:#"iMac.png"
also
UIImageView *image1 = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"iMac.png"]];
image1.frame = CGRect(111,135,140,130);
images are not displayed on the screen at all. Please correct me if i have gone wrong in the code
Just Replace
image1.frame = CGRect(111,135,140,130);
with
image1.frame = CGRectMake(111,135,140,130);
I have a subview loaded into an UIView. In the subview's .m file I have the following:
- (void)startAnimation {
// Array to hold png images
imageArray = [[NSMutableArray alloc] initWithCapacity:22];
animatedImages = [[UIImageView alloc] initWithImage:viewForImage];
// Build array of images, cycling through image names
for (int i = 1; i < 22; i++){
[imageArray addObject:[UIImage imageNamed:[NSString stringWithFormat:#"image%d.png", i]]];
}
animatedImages.animationImages = [NSArray arrayWithArray:imageArray];
// One cycle through all the images takes 1 seconds
animatedImages.animationDuration = 2.0;
// Repeat forever
animatedImages.animationRepeatCount = 0;
// Add subview and make window visible
[viewForMovie addSubview:animatedImages];
// Start it up
animatedImages.startAnimating;
NSLog(#"Executed");
}
Please be noted that I have in the .h file:
UIImageView *animatedImages;
NSMutableArray *imageArray;
UIView *viewForMovie;
#property(nonatomic,retain)IBOutlet UIView *viewForMovie;
and in the .m file:
#synthesize viewForMovie;
and I have connected viewForMovie to a UIView in IB. I've been on this for several hours now and have tried many variations I've found on the web but cannot get it to work. There are no errors and the other GUI graphics in the subview appear very nicely....but the animation just doesn't appear over top where it should. Also the NSlog reports that the method has in fact been called from the parent. Can anyone see any blaring issues? Thx.
PS: I'm pretty new at this.
Based on the code shown and the behavior you see so far, here are my suggestions:
Make sure the viewForMovie IBOutlet is connected properly in Interface Builder. If it's not connected properly (and so nil), nothing will appear. If you didn't mean to make it an IBOutlet in the first place, then you'll need to manually create it and add it as a subview to self before using it.
Not sure why you have the viewForMovie UIView in the first place. Is this subview's class (let's call it MySubview) a subclass of UIView? You can just show the animation in self instead of adding another subview inside it. Are you going to add more uiviews to this subview besides the viewForMovie?
To get rid of the "may not respond to" warning, declare the startAnimation method in the MySubview.h file (under the #property line):
-(void)startAnimation;
The fact that the warning says "UIView may not respond" also tells you that the parent view has declared newView as a UIView instead of MySubview (or whatever you've named the subview class). Change the declaration in the parent from UIView *newView; to MySubview *newView;.
In the initWithImage, what is "viewForImage"? Is it a UIImage variable or something else?
If all of the images are the same size and fit in the subview as-is, you don't need to set the frame--the initWithImage will automatically size the UIImageView using the init-image dimensions.
Double check that the images you are referencing in the for-loop are named exactly as they are in the code and that they have actually been added to the project.
Finally, you should release the objects you alloc in startAnimation. At the end of the method, add:
[imageArray release];
[animatedImages release];
The only item, however, that I think is actually preventing the animation from appearing right now is item 1.
I am doing manual layouting for my Cocoa application and at some point I need to figure out what the inner size of a NSView subclass is. (E.g. What is the height available for my child view inside of a NSBox?)
One of the reasons is that I am using a coordinate system with origin at the top-left and need to perform coordinate transformations.
I could not figure out a way to get this size so far and would be glad if somebody can give me a hint.
Another very interesting property I would like to know is the minimum size of a view.
-bounds is the one you're looking for in most views. NSBox is a bit of a special case, however, since you want to look at the bounds of the box's content view, not the bounds of the box view itself (the box view includes the title, edges, etc.). Also, the bounds rect is always the real size of the box, while the frame rect can be modified relative to the bounds to apply transformations to the view's contents (such as squashing a 200x200 image into a 200x100 frame).
So, for most views you just use [parentView bounds], and for NSBox you'll use [[theBox contentView] bounds], and you'll use [[theBox contentView] addSubview: myView] rather than [parentView addSubview: myView] to add your content.
Unfortunately, there is no standard way to do this for all NSView subclasses. In your specific example, the position and size of a child view within an NSBox can be computed as follows:
NSRect availableRect = [someNSBox bounds];
NSSize boxMargins = [someBox contentViewMargins];
availableRect = NSInsetRect(availableRect, boxMargins.width, boxMargins.height);
If you find yourself using this often, you could create a category on NSBox as follows:
// MyNSBoxCategories.h
#interface NSBox (MyCategories)
- (NSRect)contentFrame;
#end
// MyNSBoxCategories.m
#implementation NSBox (MyCategories)
- (NSRect)contentFrame
{
NSRect frameRect = [self bounds];
NSSize margins = [self contentViewMargins];
return NSInsetRect(frameRect, margins.width, margins.height);
}
#end
And you would use it like so:
#import "MyNSBoxCategories.h"
//...
NSRect frameRect = [someNSBox contentFrame];
[myContentView setFrame:frameRect];
[someNSBox addSubview:myContentView];
The bounds property of NSView returns an NSRect with the origin (usually (0,0)) and the size of an NSView. See this Apple Developer documentation page.
I'm not sure (I never had to go too deep in that stuff), but isn't it [NSView bounds]?
http://www.cocoadev.com/index.pl?DifferenceBetweenFrameAndBounds