筆記：在COCOS2D內建立UIView

來源： CCUIViewWrapper - wrapper for manipulating UIViews using Cocos2D

以下也只是轉貼該作者的程式碼，以防這個連結掰了＝Ａ＝“




首先是要建立一個CCUIViewWrapper的File。

在CCUIViewWrapper.h內寫上：

#import "cocos2d.h"
#import 

@interface CCUIViewWrapper : CCSprite
 {
 UIView *uiItem;
 float rotation;
 }

@property (nonatomic, retain) UIView *uiItem;

+ (id) wrapperForUIView:(UIView*)ui;
- (id) initForUIView:(UIView*)ui;

- (void) updateUIViewTransform;

@end

再來是在CCUIViewWrapper.m內寫上：

#import "CCUIViewWrapper.h"

@implementation CCUIViewWrapper

@synthesize uiItem;

+ (id) wrapperForUIView:(UIView*)ui
 {
 return [[[self alloc] initForUIView:ui] autorelease];
 }

- (id) initForUIView:(UIView*)ui
 {
 if((self = [self init]))
  {
  self.uiItem = ui;
  return self;
  }
 return nil;
 }

- (void) dealloc
 {
 self.uiItem = nil;
 [super dealloc];
 }

- (void) setParent:(CCNode *)parent
 {
 if(parent == nil)
  [uiItem removeFromSuperview];
 else if(uiItem != nil)
  [[[[CCDirector sharedDirector] openGLView] window] addSubview: uiItem];
 [super setParent:parent];
 }

- (void) updateUIViewTransform
 {
 float thisAngle, pAngle;
 CGAffineTransform transform = CGAffineTransformMakeTranslation(0, [[UIScreen mainScreen] bounds].size.height);

 for(CCNode *p = self; p != nil; p = p.parent)
  {
  thisAngle = CC_DEGREES_TO_RADIANS(p.rotation);

  if(!p.isRelativeAnchorPoint)
   transform = CGAffineTransformTranslate(transform, p.anchorPointInPixels.x, p.anchorPointInPixels.y);

  if(p.parent != nil)
   {
   pAngle = CC_DEGREES_TO_RADIANS(p.parent.rotation);

   transform = CGAffineTransformTranslate(transform,
      (p.position.x * cosf(pAngle)) + (p.position.y * sinf(pAngle)),
      (-p.position.y * cosf(pAngle)) + (p.position.x * sinf(pAngle)));
   }
  else
   transform = CGAffineTransformTranslate(transform, p.position.x, -p.position.y);

  transform = CGAffineTransformRotate(transform, thisAngle);
  transform = CGAffineTransformScale(transform, p.scaleX, p.scaleY);

  transform = CGAffineTransformTranslate(transform, -p.anchorPointInPixels.x, -p.anchorPointInPixels.y);
  }

 [uiItem setTransform:transform];
 }

- (void) setVisible:(BOOL)v
 {
 [super setVisible:v];
 [uiItem setHidden:!v];
 }

- (void) setRotation:(float)protation
 {
 [super setRotation:protation];
 [self updateUIViewTransform];
 }

- (void) setScaleX:(float)sx
 {
 [super setScaleX:sx];
 [self updateUIViewTransform];
 }

- (void) setScaleY:(float)sy
 {
 [super setScaleY:sy];
 [self updateUIViewTransform];
 }

- (void) setOpacity:(GLubyte)opacity
 {
 [uiItem setAlpha:opacity/255.0f];
 [super setOpacity:opacity];
 }

- (void) setContentSize:(CGSize)size
 {
 [super setContentSize:size];
 uiItem.frame = CGRectMake(0, 0, self.contentSize.width, self.contentSize.height);
 uiItem.bounds = CGRectMake(0, 0, self.contentSize.width, self.contentSize.height);
 }

- (void) setAnchorPoint:(CGPoint)pnt
 {
 [super setAnchorPoint:pnt];
 [self updateUIViewTransform];
 }

- (void) setPosition:(CGPoint)pnt
 {
 [super setPosition:pnt];
 [self updateUIViewTransform];
 }

@end

使用範例，基本上在那串討論串已經有很多人提供了，這裡也轉載以下：

//build
UIView *myView = [[[UIView alloc] init] autorelease];
CCUIViewWrapper *wrapper = [CCUIViewWrapper wrapperForUIView:myView];
wrapper.contentSize = CGSizeMake(320, 160);
wrapper.position = ccp(64,64);
[self addChild:wrapper];


[wrapper runAction:[CCRotateTo actionWithDuration:.25f angle:180]];
wrapper.position = ccp(96,128);
wrapper.opacity = 127;
[wrapper runAction:[CCScaleBy actionWithDuration:.5f scale:.5f];
wrapper.visible = false;

// cleanup
[self removeChild:wrapper cleanup:true];
wrapper = nil;