Some Size issue I think.

Discussion in 'iOS Programming' started by IDMah, Feb 27, 2012.

  1. IDMah, Feb 27, 2012
    Last edited: Feb 27, 2012

    IDMah macrumors 6502


    May 13, 2011
    Hi again..

    I'm trying to animate with a UIImageView.
    using this.

    -(void)animateNewStampImage:(UIImage *)myStamp ToHere:(CGRect)finalRect
    	CGRect bounds = [self bounds];
    	CGPoint topLeftCorner;
    	CGPoint centre;
    	topLeftCorner.x = bounds.origin.x + bounds.size.width ; // in percentage of screen size //
    	topLeftCorner.y = bounds.origin.y + bounds.size.height; // in percentage of the screen size // 
    	centre.x = bounds.origin.x + bounds.size.width / 2; // in percentage of screen size //
    	centre.y = bounds.origin.y + bounds.size.height/ 2; // in percentage of the screen size // 
    	UIImage* animStampImage = UIGraphicsGetImageFromCurrentImageContext();
    	UIImageView *myNewStamp = [[[UIImageView alloc]initWithImage:[myStamp stretchableImageWithLeftCapWidth:0.0 topCapHeight:0.0]]retain]; 
    	myNewStamp.bounds = CGRectMake(0,0,bounds.size.width,bounds.size.height);
    	//[myNewStamp setFrame:CGRectMake(0,0,bounds.size.width,bounds.size.height)];
    	//[myNewStamp setBounds:CGRectMake(0,0,bounds.size.width,bounds.size.height)];
    	//NSLog(@"animating Stamp");
    	//UIImageView * myNewStamp = [[UIImageView alloc] initWithImage:myStamp];
    	//[myNewStamp setFrame:CGRectMake(0,0,bounds.size.width,bounds.size.height)];
    	CABasicAnimation *opacityAnimm = [CABasicAnimation animationWithKeyPath:@"opacity"];
    	CABasicAnimation *scaleAnimm = [CABasicAnimation animationWithKeyPath:@"transform"];
    	CABasicAnimation *positionAimm = [CABasicAnimation animationWithKeyPath:@"position"];
    	scaleAnimm.fromValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(1,1,1.0)];
    	scaleAnimm.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(.1,.1,1.0)];		
    	scaleAnimm.removedOnCompletion = YES;
    	CGPoint positionStampNew = finalRect.origin;
    	//positionAimm.fromValue =[NSValue valueWithCATransform3D:CATransform3DMakeTranslation(positionStampNew.x,positionStampNew.y,0)];
    	//positionAimm.fromValue =[NSValue valueWithCATransform3D:CATransform3DMakeTranslation(positionStampNew.x,positionStampNew.y,0)];
    	positionAimm.fromValue =[NSValue valueWithCGPoint:positionStampNew];
    	//NSLog(@" x: %f y: %f",finalRect.origin.x,finalRect.origin.y);
    	CGPoint sumRandomPosition = CGPointMake(arc4random()%20+finalRect.origin.x,arc4random()%20+finalRect.origin.y);
    	positionAimm.toValue = [NSValue valueWithCGPoint:sumRandomPosition];
    	//positionAimm.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeTranslation(sumRandomPosition.x,sumRandomPosition.y,0)];
    	positionAimm.removedOnCompletion = YES;
    	NSLog(@" x: %f y: %f to X:%f Y:%f",positionStampNew.x,positionStampNew.y,sumRandomPosition.x,sumRandomPosition.y);
    	opacityAnimm.toValue = [NSNumber numberWithFloat:0.6];
    	opacityAnimm.fromValue = [NSNumber numberWithFloat:0.1];
    	opacityAnimm.removedOnCompletion = YES;
    	CAAnimationGroup *animGroupp = [CAAnimationGroup animation];
    	animGroupp.animations = [NSArray arrayWithObjects:opacityAnimm,scaleAnimm,positionAimm,nil];
    	animGroupp.delegate = self;
    	animGroupp.duration = 1.4;
    	//[UIView setAnimationDidStopSelector:@selector(stopButton)];	 
    	// [myNewStamp layer] //
    	[[myNewStamp layer] addAnimation:animGroupp forKey:@"newStamAnim"];
    	[self addSubview:myNewStamp];
    	[myNewStamp release];
    called from this inside:
    - (void)drawRect:(CGRect)rect {
    // stampPost is a CGPoint read from an array of objects 
    // stampSize is a CGSize read from an array of objects  --- both are correct when NSLogged - printed 
    if (newStampMarker){
    CGRect newStampRec = CGRectMake(stampPost.x,stampPost.y, stampSize.width, stampSize.height);
    uiimage = [UIImage imageNamed:@"SmileyStampYellow.png"];
    [self animateNewStampImage:uiimage ToHere:newStampRec];
    // also using this to draw non new stamps works fine // 
    [uiimage drawInRect:CGRectMake(stampPost.x,stampPost.y, stampSize.width, stampSize.height)];
    // and I add it to the View with this. //
            UIImage* blendedImage = UIGraphicsGetImageFromCurrentImageContext();
    	UIImageView *stampOverlay = [[UIImageView alloc] initWithImage:blendedImage]; 
    	[blendedImage release];
    	//[uiimage release];
    	[stampOverlay setFrame:CGRectMake(0,0,bounds.size.width,bounds.size.height)];
    	[stampOverlay setAlpha:STAMPBASE];
    	[self addSubview:stampOverlay];
    So my sticker appear ok but the animating ones are too big and not in the right spot, how do I scale them to match the view / drawInRect image.

    P.S sorry for the messy code..
  2. IDMah thread starter macrumors 6502


    May 13, 2011
    works better on Layer.

    Ok think this is a Nube mistake.
    but seem to work better on a Layer.

    added this..
    CALayer *newStampLayer = [[CALayer alloc] init];
    	[newStampLayer setBounds:bounds];
    	//newStampLayer  // 	
    	CGImageRef refStamp = [myStamp CGImage];
    	[newStampLayer setContents:(id) refStamp];
    	[[self layer] addSublayer:newStampLayer];
    	[newStampLayer release];
    	// .... and later locked the sticker to final position //
            animGroupp.removedOnCompletion = NO;// <----- this is so counter intuitive !!! //
    	animGroupp.fillMode = kCAFillModeForwards;
            [newStampLayer  addAnimation:animGroupp forKey:@"newStamAnim"];
    Still looking for a way to relate one for one positioning on a scaled View
  3. IDMah, Feb 27, 2012
    Last edited: Feb 27, 2012

    IDMah thread starter macrumors 6502


    May 13, 2011
    fudged to work.

    I kept picking scales to make the Sticker fit. but there has to be a better way..

    Help !!!!

    also tried to add rotation.. with ..
    // I wasn't using the right animationWithKeyPath:
    CABasicAnimation *rotateAnimm = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    // this is the right one for what I wanted	
    CGFloat rotRand = (arc4random()%42)*(M_PI/180); //  radians // 
    rotateAnimm.fromValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(rotRand,0,0,1)]; // tried  0,0,1 and 1,0,0 nothing..  
    // added to CAAnimationGroup of Course.. //
    nothing spins.. :confused:

    Ok got it.. see above .. stupidity...
  4. IDMah thread starter macrumors 6502


    May 13, 2011
    Animate in Context.

    Not sure if I'm barking up the wrong tree but is there a way to
    Animate in Context? and would that solve my sizing problems??

    but can't seem to find anything in setting it in the layer or animation


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