Imagine a yellow box (CALayer instance) drawn in the its parent layer (which is the root layer of a layer-backing NSView).
When the frame of the parent view changes, the yellow box should remain at the same position on the screen. When i set up autoresizing masks to NSViewMinXMarging and NSViewMaxXMarging the yellow box move on the screen proportionally between changing view width...
How can I adjust the frame of the NSWindow (NSView) while keeping the child layer at its initial position?
I know about - (void)layoutSublayersOfLayer:(CALayer *)layer CALayerDelegate method but i did not have an idea how to implement this behavior.
Here is demo:
This is my approach.
Subclass NSWindow.
.h-file:
#import <Cocoa/Cocoa.h>
#import <QuartzCore/QuartzCore.h>
#interface NNMainWindow : NSWindow <NSWindowDelegate> {
CALayer* yellowLayer;
NSRect leftEdge;
NSRect rightEdge;
NSRect topEdge;
NSRect bottomEdge;
}
#end
.m-file:
#import "NNMainWindow.h"
#implementation NNMainWindow
- (void)awakeFromNib {
//Add yellow layer here....
[self setAcceptsMouseMovedEvents:YES];
[self updateResizingMarkers];
}
- (void)updateResizingMarkers {
NSSize horizontalRectSize = NSMakeSize(NSWidth(self.frame), 8.f);
horizontalRectSize.width += 10.f;
NSSize verticalRectSize = NSMakeSize(8.f, NSHeight(self.frame));
verticalRectSize.height += 10.f;
leftEdge = NSZeroRect;
leftEdge.size = verticalRectSize;
leftEdge.origin = NSMakePoint(-5.f, -5.f);
rightEdge = NSZeroRect;
rightEdge.size = verticalRectSize;
rightEdge.origin = NSMakePoint(horizontalRectSize.width - 10.f - 3.f, -5.f);
}
- (void)mouseMoved:(NSEvent *)theEvent {
NSPoint currentLocation = [theEvent locationInWindow];
if (NSPointInRect(currentLocation, leftEdge))
yellowLayer.autoresizingMask = kCALayerMinXMargin;
if (NSPointInRect(currentLocation, rightEdge))
yellowLayer.autoresizingMask = kCALayerMaxXMargin;
}
- (void)windowDidResize:(NSNotification *)notification {
[self updateResizingMarkers];
}
#end
Related
I want to have UITextField with multiple lines, after a quick google on this issue I found that I should use TextView so I did switch my code to use UITextView when I want multiple lines. My View still have other one line textField that I want to keep.
To make my TextView looks like TextField, I had to add code to set border and radius, but they look a little bit different on iOS7. Does anyone know:
what is the color for the UITextField border? when both enabled and disabled so I can sent my textview to match it.
what is radius of the corner of TextField.
what is the background color for UITextField when it is disabled[attached picture shows the text field has lighter shade of grey when it is disabled]? so i can set my text view to the same color when i disable user interaction.
If there is away to keep using textfield for multiline text, I am all ears and i switch to use it.
Best Regards,
I use this:
textView.layer.borderColor = [[UIColor colorWithRed:215.0 / 255.0 green:215.0 / 255.0 blue:215.0 / 255.0 alpha:1] CGColor];
textView.layer.borderWidth = 0.6f;
textView.layer.cornerRadius = 6.0f;
little differences in the params make it looks more like UITextField(I hope).
I use this:
#import <QuartzCore/QuartzCore.h>
-(void) textViewLikeTextField:(UITextView*)textView
{
[textView.layer setBorderColor:[[UIColor colorWithRed:212.0/255.0
green:212.0/255.0
blue:212.0/255.0
alpha:1] CGColor]];
[textView.layer setBorderWidth:1.0f];
[textView.layer setCornerRadius:7.0f];
[textView.layer setMasksToBounds:YES];
}
and get a good resut.
I have a small subclass of UITextView that gives in iOS 7 the same look as the UITextField
The interface is empty:
#interface MyTextView : UITextView
#end
The implementation overwrites the initialization and the setter of the 'editable' property:
#implementation MyTextView
//================================================================================
- (id) initWithFrame: (CGRect) frame
{
self = [super initWithFrame:frame];
if (self)
{
[self commonInit];
}
return self;
}
//================================================================================
- (id) initWithCoder: (NSCoder *) aDecoder
{
self = [super initWithCoder:aDecoder];
if (self)
{
[self commonInit];
}
return self;
}
//================================================================================
- (void) commonInit
{
self.layer.borderWidth = 1.0f;
self.layer.borderColor = [[UIColor colorWithRed:232.0/255.0
green:232.0/255.0 blue:232.0/255.0 alpha:1] CGColor];
self.layer.cornerRadius = 6;
}
//================================================================================
- (void) setEditable: (BOOL) editable
{
[super setEditable:editable];
if (editable)
{
self.backgroundColor = [UIColor whiteColor];
}
else
{
self.backgroundColor = [UIColor colorWithRed:250.0/255.0
green:250.0/255.0 blue:250.0/255.0 alpha:1];
}
}
//================================================================================
#end
This is the closest I got with enabled UITextView
[yourTextView.layer setBorderColor:[[[UIColor lightGrayColor] colorWithAlphaComponent:0.2] CGColor]];
[yourTextView.layer setBorderWidth:2.0];
yourTextView.layer.cornerRadius = 5;
yourTextView.clipsToBounds = YES;
yourTextView.textColor = [UIColor lightGrayColor];
I want to add another menu option to the default image attachment menu options (Copy Image, Save to Camera Roll). Note that these options are shown when you long press on an image embedded in the UITextView if the textView is not in editing mode.
I have tried adding a custom menu to the uimenucontroller and using -(void)canPerformAction to enable or disable the option, however this seems to add the menu item to the uitextView's edit menu and has no affect on the attachments popup menu.
-(void)canPerformAction never seems to get called when long pressing on the image attachment.
Well according to Apple there is no public API for doing this, however as it turns out its relatively straight forward to replace the default menu with one that looks and behaves the same.
In the viewController that contains the UITextView add the following or similar and set it up as the textView's delegate.
- (BOOL)textView:(UITextView *)textView shouldInteractWithTextAttachment:(NSTextAttachment *)textAttachment inRange:(NSRange)characterRange {
// save in ivar so we can access once action sheet option is selected
_attachment = textAttachment;
[self attachmentActionSheet:(UITextView *)textView range:characterRange];
return NO;
}
- (void)attachmentActionSheet:(UITextView *)textView range:(NSRange)range {
// get the rect for the selected attachment (if its a big image with top not visible the action sheet
// will be positioned above the top limit of the UITextView
// Need to add code to adjust for this.
CGRect attachmentRect = [self frameOfTextRange:range inTextView:textView];
_attachmentMenuSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:self
cancelButtonTitle:#"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:#"Copy Image", #"Save to Camera Roll", #"Open in Viewer", nil];
// Show the sheet
[_attachmentMenuSheet showFromRect:attachmentRect inView:textView animated:YES];
}
- (CGRect)frameOfTextRange:(NSRange)range inTextView:(UITextView *)textView {
CGRect rect = [textView.layoutManager boundingRectForGlyphRange:range inTextContainer:textView.textContainer];
// Now convert to textView coordinates
CGRect rectRange = [textView convertRect:rect fromView:textView.textInputView];
// Now convert to contentView coordinates
CGRect rectRangeSuper = [self.contentView convertRect:rectRange fromView:textView];
// Get the textView frame
CGRect rectView = textView.frame;
// Find the intersection of the two (in the same coordinate space)
CGRect rectIntersect = CGRectIntersection(rectRangeSuper, rectView);
// If no intersection then that's weird !!
if (CGRectIsNull(rectIntersect)) {
return rectRange;
}
// Now convert the intersection rect back to textView coordinates
CGRect rectRangeInt = [textView convertRect:rectIntersect fromView:self.contentView];
return rectRangeInt;
}
- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {
if (actionSheet == _attachmentMenuSheet) {
switch (buttonIndex) {
case 0:
[self copyImageToPasteBoard:[_attachment image]];
break;
case 1:
[self saveToCameraRoll:[_attachment image]];
break;
case 2:
[self browseImage:[_attachment image]];
break;
default:
break;
}
}
}
- (void)saveToCameraRoll:(UIImage*)image {
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
}
- (void)copyImageToPasteBoard:(UIImage*)image {
UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
NSData *data = UIImagePNGRepresentation(image);
[pasteboard setData:data forPasteboardType:#"public.png"];
}
-(void)browseImage:(UIImage*)image
{
OSImageViewController *_imageViewerController = [[OSImageViewController alloc] init];
UIImage *img = [[UIImage alloc] initWithData:UIImagePNGRepresentation(image)];
_imageViewerController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
_imageViewerController.modalPresentationStyle = UIModalPresentationFullScreen;
_imageViewerController.delegate = self;
[self presentViewController:_imageViewerController animated:YES completion:^(void){
[_imageViewerController setImage:img];
}];
}
Resize MKAnnotationView Image When map zooms in and out? This methord are successful on iOS5, but failed on iOS6.
I change the MKAnnotationView's transform directly, and no luck. The MKAnnotationView only resize in a flash(When touch up inside the MKMapView, after the touch up finish, the MKAnnotationView will restore the original size).
My code are below:
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated {
for (id <MKAnnotation>annotation in _mapView.annotations) {
// if it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
continue;
// handle our custom annotations
//
if ([annotation isKindOfClass:[XPMKAnnotation class]])
{
// try to retrieve an existing pin view first
MKAnnotationView *pinView = [_mapView viewForAnnotation:annotation];
//resize the pin view
double zoomLevel = [_mapView getZoomLevel];
double scale = (1.0 * zoomLevel / 16) + 0.5;
pinView.transform = CGAffineTransformMakeScale(scale, scale);
}
}
}
Can we resize the MKAnnotationView on iOS6? Anybody know any way?
Apple suggests resizing the .image property of an annotation view. In my case shown below, I looked at the UIImage that was set in the viewforAnnotation and re-scaled it to the zoom level in a UIPinchGestureRecognizer
UIImage *orangeImage = [UIImage imageNamed:#"Orange210.PNG"];
CGRect resizeRect;
//rescale image based on zoom level
resizeRect.size.height = orangeImage.size.height * scale;
resizeRect.size.width = orangeImage.size.width * scale ;
NSLog(#"height = %f, width = %f, zoomLevel = %f", resizeRect.size.height, resizeRect.size.width,zoomLevel );
resizeRect.origin = (CGPoint){0,0};
UIGraphicsBeginImageContext(resizeRect.size);
[orangeImage drawInRect:resizeRect];
UIImage *resizedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
pinView.image = resizedImage;
I am trying to built an animated circle which would be drawn clockwise until it becomes complete circle as illustrated in iPhone Core Animation - Drawing a Circle
Problem is that CALayer object is not added or build. I tested and saw that it is not accessing my drawInContext:CGContextRef and animatingArc methods.
What so far I have done is:
In AnimateArc.h
#interface AnimateArc : CALayer {
CAShapeLayer *circle;
}
-(void) animatingArc;
#end
In AnimateArc.m
-(void) drawInContext:(CGContextRef)ctx
{
CGFloat radius = 50.0;
circle = [CAShapeLayer layer];
//make a circular shape
circle.path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0.0, 0.0, 2 * radius, 2 * radius) cornerRadius:radius].CGPath;
CGPoint centerPoint = CGPointMake(CGRectGetWidth(self.bounds)/2, CGRectGetHeight(self.bounds)/2);
//center the shape in self.view
circle.position = centerPoint;
//configure appearence of circle
circle.fillColor = [UIColor clearColor].CGColor;
circle.strokeColor = [UIColor blackColor].CGColor;
circle.lineWidth = 5;
/*CGPointMake((self.contentsCenter.size.width), (self.contentsCenter.size.height));*/
//path the circle
CGContextAddArc(ctx, centerPoint.x, centerPoint.y, radius, 0.0, 2 * M_PI, 0);
CGContextClosePath(ctx);
//fill it
CGContextSetFillColorWithColor(ctx, [UIColor redColor].CGColor);
CGContextFillPath(ctx); }
///////////////////////////////////////////////////////////////////////
-(void) animatingArc
{
CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:#"arcEnd"];
anim.duration = 20.0; //animate over 20 seconds
anim.repeatCount = 1.0; //animate only once
anim.removedOnCompletion = NO; //Reamin there after completion
//animate from start to end
anim.fromValue = [NSNumber numberWithFloat:50.0f];
anim.toValue = [NSNumber numberWithFloat:150.0f];
//experiment with timing to get appearence to look the way you want
anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
//add animation to circle
[circle addAnimation:anim forKey:#"animatingArc"];
}
/////////////////////
//needed since key not part of animatable properties
+(BOOL) needsDisplayForKey:(NSString *)key
{
if([key isEqualToString:#"arcEnd"])
return YES;
else
return [super needsDisplayForKey:key];
}
//ensure custom properties copied to presentation layer
-(id) initWithLayer:(id)layer
{
if((self = [super initWithLayer:layer]))
{
if ([layer isKindOfClass:[AnimateArc class]])
{
AnimateArc *other = (AnimateArc *) layer;
[other setNeedsDisplay];
}
}
return self; }
And finally in my viewController,
- (void)viewDidLoad
{
[super viewDidLoad];
[self.view.layer addSublayer:AnimateArcObject];
[AnimateArcObject animatingArc];
}
Apology for bad formatting.... Please can someone tell me what am I doing wrong? I have also doubt that my code can crash at any place after accessing those two functions since I am novice about Core Animation and haven't got any idea that I am in right direction or not.
Any help will be appreciated. Thanks.
From my painful experience with CoreAnimation, you must always set the bounds property of any CALayer you instantiate.
So, you're layer is not showing because you are missing something like:
layer.bounds = CGRectMake(0, 0, width, height);
you should place this as soon as you instantiate the layer, and make it a habit to do so, so you don't fall into it again.
As for your code crashing, sorry. It's too distributed and I am not sure how it's linked together, so I can't help you there.
After little searching, I thought that I am going in wrong direction. So I deleted this AnimateArc file and added new one which is inheriting from UIViewController.
Then in viewDidLoad Method, I wrote the code from this link to create circle and animations using path.
In parent view controller, I added AnimatedArc ViewController's subview. Now its working perfectly :)
In my application I want to show iAd in table view controller which have both navigation bar and Tab bar. I am able to show iAd in my application but this iAd is give trouble when I try to scroll, the problem is that iAd is also scrolling with the cells due to which I am not able to view the cell in bottom. I am creating the iAd using below code. can some one help me out in resolving following issue.
#pragma mark -
#pragma mark === Banner View Methods ===
#pragma mark -
- (void)createBannerView {
Class cls = NSClassFromString(#"ADBannerView");
if (cls) {
ADBannerView *adView = [[cls alloc] initWithFrame:CGRectZero];
adView.requiredContentSizeIdentifiers = [NSSet setWithObjects:ADBannerContentSizeIdentifierPortrait,
ADBannerContentSizeIdentifierLandscape, nil];
// Set the current size based on device orientation
adView.currentContentSizeIdentifier = ADBannerContentSizeIdentifierPortrait;
adView.delegate = self;
adView.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleRightMargin;
// Set intital frame to be offscreen
CGRect bannerFrame =adView.frame;
bannerFrame.origin.y = self.view.frame.size.height;
adView.frame = bannerFrame;
self.bannerView = adView;
[self.view addSubview:adView];
[adView release];
}
}
- (void)showBanner {
CGFloat fullViewHeight = self.view.frame.size.height;
CGRect tableFrame = self.tv.frame;
CGRect bannerFrame = self.bannerView.frame;
// Shrink the tableview to create space for banner
tableFrame.size.height = fullViewHeight - bannerFrame.size.height;
// Move banner onscreen
bannerFrame.origin.y = fullViewHeight - bannerFrame.size.height;
[UIView beginAnimations:#"showBanner" context:NULL];
self.tv.frame = tableFrame;
self.bannerView.frame = bannerFrame;
[UIView commitAnimations];
}
- (void)hideBanner {
// Grow the tableview to occupy space left by banner
CGFloat fullViewHeight = self.view.frame.size.height;
CGRect tableFrame = self.tv.frame;
tableFrame.size.height = fullViewHeight;
// Move the banner view offscreen
CGRect bannerFrame = self.bannerView.frame;
bannerFrame.origin.y = fullViewHeight;
self.tv.frame = tableFrame;
self.bannerView.frame = bannerFrame;
}
- (void)releaseBanner {
if (self.bannerView) {
bannerView.delegate = nil;
self.bannerView = nil;
}
}
- (void)changeBannerOrientation:(UIInterfaceOrientation)toOrientation {
if (UIInterfaceOrientationIsLandscape(toOrientation)) {
self.bannerView.currentContentSizeIdentifier =
ADBannerContentSizeIdentifierLandscape;
}
else {
self.bannerView.currentContentSizeIdentifier =
ADBannerContentSizeIdentifierPortrait;
}
}
#pragma mark -
#pragma mark === ADBannerViewDelegate Methods ===
#pragma mark -
- (void)bannerViewDidLoadAd:(ADBannerView *)banner {
[self showBanner];
}
- (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error {
[self hideBanner];
}
yes i got it you use addSubView which i think is wrong Add this Banner in last cell of a tableview or in a fotter of a table view if you are not use load more functionalty in you app
– tableView:viewForFooterInSection:
use that delegate method of table view UItableViewDelegate i think it helps you
– tableView:heightForFooterInSection:
add that method too to specify the height of footer of your table
add the calculate banner size code in
– tableView:heightForFooterInSection:
and add banner in – tableView:heightForFooterInSection: