Popup view的实现
以前写过一篇文章：UIPopoverController的定位，这篇文章实现了类似的功能。
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首先，导入CoreGraphics.framework和QuartzCore.framework。
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pch文件：
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#ifdef __OBJC__#import <Foundation/Foundation.h>#import <UIKit/UIKit.h>#endif#if TARGET_IPHONE_SIMULATOR#import <objc/objc-runtime.h>#else#import <objc/runtime.h>#endif#ifdef_DEBUG#defineDNSLog(...);NSLog(__VA_ARGS__);#define DNSLogMethodNSLog(@"[%s] %@", class_getName([self class]), NSStringFromSelector(_cmd));#define DNSLogPoint(p)NSLog(@"%f,%f", p.x, p.y);#define DNSLogSize(p)NSLog(@"%f,%f", p.width, p.height);#define DNSLogRect(p)NSLog(@"%f,%f %f,%f", p.origin.x, p.origin.y, p.size.width, p.size.height);CFAbsoluteTime startTime;#define D_STARTstartTime=CFAbsoluteTimeGetCurrent();#define D_ENDDNSLog(@"[%s] %@ %f seconds", class_getName([self class]), NSStringFromSelector(_cmd), CFAbsoluteTimeGetCurrent() - startTime );#else#define DNSLog(...); NSLog(__VA_ARGS__);#define DNSLogMethod NSLog(@"[%s] %@", class_getName([self class]), NSStringFromSelector(_cmd) );#define DNSLogPoint(p) NSLog(@"%f,%f", p.x, p.y);#define DNSLogSize(p) NSLog(@"%f,%f", p.width, p.height);#define DNSLogRect(p) NSLog(@"%f,%f %f,%f", p.origin.x, p.origin.y, p.size.width, p.size.height);#define D_START CFAbsoluteTime startTime=CFAbsoluteTimeGetCurrent();#define D_END DNSLog(@"New %f seconds", CFAbsoluteTimeGetCurrent() - startTime );#endif#define SAFE_FREE(p) { if(p) { free(p); (p)=NULL; } }??
#import <UIKit/UIKit.h>#define SHADOW_OFFSETCGSizeMake(10, 10)#define CONTENT_OFFSETCGSizeMake(10, 10)#define POPUP_ROOT_SIZECGSizeMake(20, 10)#define HORIZONTAL_SAFE_MARGIN30#define POPUP_ANIMATION_DURATION0.3#define DISMISS_ANIMATION_DURATION0.2#define DEFAULT_TITLE_SIZE20#define ALPHA0.6#define BAR_BUTTON_ITEM_UPPER_MARGIN10#define BAR_BUTTON_ITEM_BOTTOM_MARGIN5@class TouchPeekView;typedef enum {SNPopupViewUp= 1,SNPopupViewDown= 2,SNPopupViewRight= 1 << 8,SNPopupViewLeft= 2 << 8,} SNPopupViewDirection;@class SNPopupView;@protocol SNPopupViewModalDelegate <NSObject>- (void)didDismissModal:(SNPopupView *)popupview;@end@interface SNPopupView : UIView {CGGradientRef gradient;CGGradientRef gradient2;CGRectcontentRect;CGRectcontentBounds;CGRectpopupRect;CGRectpopupBounds;CGRectviewRect;CGRectviewBounds;CGPointpointToBeShown;NSString*title;UIImage*image;floatfontSize;UIView*contentView;floathorizontalOffset;SNPopupViewDirectiondirection;idtarget;SELaction;TouchPeekView*peekView;id<SNPopupViewModalDelegate>delegate;BOOLanimatedWhenAppering;}@property (nonatomic, readonly) NSString *title;@property (nonatomic, readonly) UIImage *image;@property (nonatomic, readonly) UIView *contentView;@property (nonatomic, assign) id <SNPopupViewModalDelegate> delegate;- (id)initWithString:(NSString *)newValue withFontOfSize:(float)newFontSize;- (id)initWithString:(NSString *)newValue;- (id)initWithImage:(UIImage *)newImage;- (id)initWithContentView:(UIView *)newContentView contentSize:(CGSize)contentSize;- (void)showAtPoint:(CGPoint)p inView:(UIView *)inView;- (void)showAtPoint:(CGPoint)p inView:(UIView *)inView animated:(BOOL)animated;- (void)presentModalAtPoint:(CGPoint)p inView:(UIView *)inView;- (void)presentModalAtPoint:(CGPoint)p inView:(UIView *)inView animated:(BOOL)animated;- (BOOL)shouldBeDismissedFor:(NSSet *)touches withEvent:(UIEvent *)event;- (void)dismiss;- (void)dismiss:(BOOL)animtaed;- (void)dismissModal;- (void)addTarget:(id)target action:(SEL)action;@end
#import "SNPopupView.h"#import <QuartzCore/QuartzCore.h>@interface TouchPeekView : UIView {SNPopupView *delegate;}@property (nonatomic, assign) SNPopupView *delegate;@end@interface SNPopupView(Private)- (void)popup;@end@implementation TouchPeekView@synthesize delegate;- (id)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { [self setBackgroundColor:[UIColor clearColor]]; } return self;}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {DNSLogMethodif ([delegate shouldBeDismissedFor:touches withEvent:event])[delegate dismissModal];}@end@implementation SNPopupView@synthesize title, image, contentView, delegate;#pragma mark - Prepare- (void)setupGradientColors {CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB();CGFloat colors[] ={155.0 / 255.0, 155.0 / 255.0, 155.0 / 255.0, ALPHA,70.0 / 255.0, 70.0 / 255.0, 70.0 / 255.0, ALPHA,};gradient = CGGradientCreateWithColorComponents(rgb, colors, NULL, sizeof(colors)/(sizeof(colors[0]) * 4));CGFloat colors2[] ={20.0 / 255.0, 20.0 / 255.0, 20.0 / 255.0, ALPHA,0.0 / 255.0, 0.0 / 255.0, 0.0 / 255.0, ALPHA,};gradient2 = CGGradientCreateWithColorComponents(rgb, colors2, NULL, sizeof(colors2) / (sizeof(colors2[0]) * 4));CGColorSpaceRelease(rgb);}- (id) initWithString:(NSString *)newValue {return [self initWithString:newValue withFontOfSize:DEFAULT_TITLE_SIZE];}- (id) initWithString:(NSString *)newValue withFontOfSize:(float)newFontSize {self = [super init];if (self != nil) {title = [newValue copy];[self setBackgroundColor:[UIColor clearColor]];fontSize = newFontSize;UIFont *font = [UIFont boldSystemFontOfSize:fontSize];CGSize titleRenderingSize = [title sizeWithFont:font];contentBounds = CGRectMake(0, 0, 0, 0);contentBounds.size = titleRenderingSize;[self setupGradientColors];}return self;}- (id) initWithImage:(UIImage *)newImage {self = [super init];if (self != nil) {image = [newImage retain];[self setBackgroundColor:[UIColor clearColor]];contentBounds = CGRectMake(0, 0, 0, 0);contentBounds.size = image.size;[self setupGradientColors];}return self;}- (id) initWithContentView:(UIView *)newContentView contentSize:(CGSize)contentSize {self = [super init];if (self != nil) {contentView = [newContentView retain]; [self setBackgroundColor:[UIColor clearColor]];contentBounds = CGRectMake(0, 0, 0, 0);contentBounds.size = contentSize;[self setupGradientColors];}return self;}- (void)addTarget:(id)newTarget action:(SEL)newAction {if ([newTarget respondsToSelector:newAction]) {target = newTarget;action = newAction;}}#pragma mark - Present modal- (void)createAndAttachTouchPeekView {UIWindow *window = [[UIApplication sharedApplication] keyWindow]; [peekView removeFromSuperview];[peekView release];peekView = nil;peekView = [[TouchPeekView alloc] initWithFrame:window.frame];[peekView setDelegate:self];[window addSubview:peekView];}- (void)presentModalAtPoint:(CGPoint)p inView:(UIView *)inView {animatedWhenAppering = YES;[self createAndAttachTouchPeekView];[self showAtPoint:[inView convertPoint:p toView:[[UIApplication sharedApplication] keyWindow]] inView:[[UIApplication sharedApplication] keyWindow]];}- (void)presentModalAtPoint:(CGPoint)p inView:(UIView *)inView animated:(BOOL)animated {animatedWhenAppering = animated;[self createAndAttachTouchPeekView];[self showAtPoint:[inView convertPoint:p toView:[[UIApplication sharedApplication] keyWindow]] inView:[[UIApplication sharedApplication] keyWindow] animated:animated];}#pragma mark - Show as normal view- (void)showAtPoint:(CGPoint)p inView:(UIView *)inView {[self showAtPoint:p inView:inView animated:NO];}- (void)showAtPoint:(CGPoint)p inView:(UIView *)inView animated:(BOOL)animated {if ((p.y - contentBounds.size.height - POPUP_ROOT_SIZE.height - 2 * CONTENT_OFFSET.height - SHADOW_OFFSET.height) < 0) {direction = SNPopupViewDown;}else {direction = SNPopupViewUp;}if (direction & SNPopupViewUp) { pointToBeShown = p;contentRect.origin.x = p.x - (int)contentBounds.size.width / 2;contentRect.origin.y = p.y - CONTENT_OFFSET.height - POPUP_ROOT_SIZE.height - contentBounds.size.height;contentRect.size = contentBounds.size;popupBounds.origin = CGPointMake(0, 0);popupBounds.size.width = contentBounds.size.width + CONTENT_OFFSET.width + CONTENT_OFFSET.width;popupBounds.size.height = contentBounds.size.height + CONTENT_OFFSET.height + CONTENT_OFFSET.height + POPUP_ROOT_SIZE.height;popupRect.origin.x = contentRect.origin.x - CONTENT_OFFSET.width;popupRect.origin.y = contentRect.origin.y - CONTENT_OFFSET.height;popupRect.size = popupBounds.size;viewBounds.origin = CGPointMake(0, 0);viewBounds.size.width = popupRect.size.width + SHADOW_OFFSET.width + SHADOW_OFFSET.width;viewBounds.size.height = popupRect.size.height + SHADOW_OFFSET.height + SHADOW_OFFSET.height;viewRect.origin.x = popupRect.origin.x - SHADOW_OFFSET.width;viewRect.origin.y = popupRect.origin.y - SHADOW_OFFSET.height;viewRect.size = viewBounds.size; float left_viewRect = viewRect.origin.x + viewRect.size.width;if (viewRect.origin.x < 0) {direction = direction | SNPopupViewRight;horizontalOffset = viewRect.origin.x;if (viewRect.origin.x - horizontalOffset < pointToBeShown.x - HORIZONTAL_SAFE_MARGIN) {}else {pointToBeShown.x = HORIZONTAL_SAFE_MARGIN;}viewRect.origin.x -= horizontalOffset;contentRect.origin.x -= horizontalOffset;popupRect.origin.x -= horizontalOffset;}else if (left_viewRect > inView.frame.size.width) {direction = direction | SNPopupViewLeft;horizontalOffset = inView.frame.size.width - left_viewRect;if (left_viewRect + horizontalOffset > pointToBeShown.x + HORIZONTAL_SAFE_MARGIN) {}else {pointToBeShown.x = inView.frame.size.width - HORIZONTAL_SAFE_MARGIN;}viewRect.origin.x += horizontalOffset;contentRect.origin.x += horizontalOffset;popupRect.origin.x += horizontalOffset;}}else {pointToBeShown = p;contentRect.origin.x = p.x - (int)contentBounds.size.width / 2;contentRect.origin.y = p.y + CONTENT_OFFSET.height + POPUP_ROOT_SIZE.height;contentRect.size = contentBounds.size;popupBounds.origin = CGPointMake(0, 0);popupBounds.size.width = contentBounds.size.width + CONTENT_OFFSET.width + CONTENT_OFFSET.width;popupBounds.size.height = contentBounds.size.height + CONTENT_OFFSET.height + CONTENT_OFFSET.height + POPUP_ROOT_SIZE.height;popupRect.origin.x = contentRect.origin.x - CONTENT_OFFSET.width;popupRect.origin.y = contentRect.origin.y - CONTENT_OFFSET.height - POPUP_ROOT_SIZE.height;popupRect.size = popupBounds.size;viewBounds.origin = CGPointMake(0, 0);viewBounds.size.width = popupRect.size.width + SHADOW_OFFSET.width + SHADOW_OFFSET.width;viewBounds.size.height = popupRect.size.height + SHADOW_OFFSET.height + SHADOW_OFFSET.height;viewRect.origin.x = popupRect.origin.x - SHADOW_OFFSET.width;viewRect.origin.y = popupRect.origin.y - SHADOW_OFFSET.height;viewRect.size = viewBounds.size;float left_viewRect = viewRect.origin.x + viewRect.size.width;if (viewRect.origin.x < 0) {direction = direction | SNPopupViewRight;horizontalOffset = viewRect.origin.x;if (viewRect.origin.x - horizontalOffset < pointToBeShown.x - HORIZONTAL_SAFE_MARGIN) {}else {pointToBeShown.x = HORIZONTAL_SAFE_MARGIN;}viewRect.origin.x -= horizontalOffset;contentRect.origin.x -= horizontalOffset;popupRect.origin.x -= horizontalOffset;}else if (left_viewRect > inView.frame.size.width) {direction = direction | SNPopupViewLeft;horizontalOffset = inView.frame.size.width - left_viewRect;if (left_viewRect + horizontalOffset > pointToBeShown.x + HORIZONTAL_SAFE_MARGIN) {}else {pointToBeShown.x = inView.frame.size.width - HORIZONTAL_SAFE_MARGIN;}viewRect.origin.x += horizontalOffset;contentRect.origin.x += horizontalOffset;popupRect.origin.x += horizontalOffset;}}contentRect.origin.x -= viewRect.origin.x;contentRect.origin.y -= viewRect.origin.y;popupRect.origin.x -= viewRect.origin.x;popupRect.origin.y -= viewRect.origin.y;pointToBeShown.x -= viewRect.origin.x;pointToBeShown.y -= viewRect.origin.y;BOOL isAlreadyShown = (self.superview == inView);if (isAlreadyShown) {[self setNeedsDisplay];if (animated) {[UIView beginAnimations:@"move" context:nil];[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];}self.frame = viewRect;if (animated) {[UIView commitAnimations];}}else {[inView addSubview:self];self.frame = viewRect;if (contentView) {[self addSubview:contentView];[contentView setFrame:contentRect];}if (animated)[self popup];}}#pragma mark - Core Animation call back- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag {[self removeFromSuperview];}#pragma mark - Make CoreAnimation object- (CAKeyframeAnimation *)getAlphaAnimationForPopup {CAKeyframeAnimation *alphaAnimation = [CAKeyframeAnimationanimationWithKeyPath:@"opacity"];alphaAnimation.removedOnCompletion = NO;alphaAnimation.values = [NSArray arrayWithObjects: [NSNumber numberWithFloat:0], [NSNumber numberWithFloat:0.7], [NSNumber numberWithFloat:1], nil];alphaAnimation.keyTimes = [NSArray arrayWithObjects: [NSNumber numberWithFloat:0], [NSNumber numberWithFloat:0.1], [NSNumber numberWithFloat:1], nil];return alphaAnimation;}- (CAKeyframeAnimation *)getPositionAnimationForPopup {float r1 = 0.1;float r2 = 1.4;float r3 = 1;float r4 = 0.8;float r5 = 1;float y_offset = (popupRect.size.height / 2 - POPUP_ROOT_SIZE.height);CAKeyframeAnimation *positionAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];CATransform3D tm1, tm2, tm3, tm4, tm5;if (direction & SNPopupViewUp) {if (direction & SNPopupViewLeft)horizontalOffset = -horizontalOffset;tm1 = CATransform3DMakeTranslation(horizontalOffset * (1 - r1), y_offset * (1 - r1), 0);tm2 = CATransform3DMakeTranslation(horizontalOffset * (1 - r2), y_offset * (1 - r2), 0);tm3 = CATransform3DMakeTranslation(horizontalOffset * (1 - r3), y_offset * (1 - r3), 0);tm4 = CATransform3DMakeTranslation(horizontalOffset * (1 - r4), y_offset * (1 - r4), 0);tm5 = CATransform3DMakeTranslation(horizontalOffset * (1 - r5), y_offset * (1 - r5), 0);}else {if (direction & SNPopupViewLeft)horizontalOffset = -horizontalOffset;tm1 = CATransform3DMakeTranslation(horizontalOffset * (1 - r1), -y_offset * (1 - r1), 0);tm2 = CATransform3DMakeTranslation(horizontalOffset * (1 - r2), -y_offset * (1 - r2), 0);tm3 = CATransform3DMakeTranslation(horizontalOffset * (1 - r3), -y_offset * (1 - r3), 0);tm4 = CATransform3DMakeTranslation(horizontalOffset * (1 - r4), -y_offset * (1 - r4), 0);tm5 = CATransform3DMakeTranslation(horizontalOffset * (1 - r5), -y_offset * (1 - r5), 0);}tm1 = CATransform3DScale(tm1, r1, r1, 1);tm2 = CATransform3DScale(tm2, r2, r2, 1);tm3 = CATransform3DScale(tm3, r3, r3, 1);tm4 = CATransform3DScale(tm4, r4, r4, 1);tm5 = CATransform3DScale(tm5, r5, r5, 1);positionAnimation.values = [NSArray arrayWithObjects:[NSValue valueWithCATransform3D:tm1],[NSValue valueWithCATransform3D:tm2],[NSValue valueWithCATransform3D:tm3],[NSValue valueWithCATransform3D:tm4],[NSValue valueWithCATransform3D:tm5],nil];positionAnimation.keyTimes = [NSArray arrayWithObjects: [NSNumber numberWithFloat:0.0], [NSNumber numberWithFloat:0.2], [NSNumber numberWithFloat:0.4], [NSNumber numberWithFloat:0.7], [NSNumber numberWithFloat:1.0], nil];return positionAnimation;}#pragma mark - Popup and dismiss- (void)popup {CAKeyframeAnimation *positionAnimation = [self getPositionAnimationForPopup];CAKeyframeAnimation *alphaAnimation = [self getAlphaAnimationForPopup];CAAnimationGroup *group = [CAAnimationGroup animation];group.animations = [NSArray arrayWithObjects:positionAnimation, alphaAnimation, nil];group.duration = POPUP_ANIMATION_DURATION;group.removedOnCompletion = YES;group.fillMode = kCAFillModeForwards;[self.layer addAnimation:group forKey:@"hoge"];}- (BOOL)shouldBeDismissedFor:(NSSet *)touches withEvent:(UIEvent *)event {UITouch *touch = [touches anyObject];CGPoint p = [touch locationInView:self];return !CGRectContainsPoint(contentRect, p);}- (void)dismissModal {if ([peekView superview]) [delegate didDismissModal:self];[peekView removeFromSuperview];[self dismiss:animatedWhenAppering];}- (void)dismiss:(BOOL)animtaed {if (animtaed)[self dismiss];else {[self removeFromSuperview];}}- (void)dismiss {CAKeyframeAnimation *positionAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];float r1 = 1.0;float r2 = 0.1;float y_offset = (popupRect.size.height/2 - POPUP_ROOT_SIZE.height);CAKeyframeAnimation *alphaAnimation = [CAKeyframeAnimationanimationWithKeyPath:@"opacity"];alphaAnimation.removedOnCompletion = NO;alphaAnimation.values = [NSArray arrayWithObjects: [NSNumber numberWithFloat:1], [NSNumber numberWithFloat:0], nil];alphaAnimation.keyTimes = [NSArray arrayWithObjects: [NSNumber numberWithFloat:0], [NSNumber numberWithFloat:1], nil];CATransform3D tm1, tm2;if (direction & SNPopupViewUp) {tm1 = CATransform3DMakeTranslation(horizontalOffset * (1 - r1), y_offset * (1 - r1), 0);tm2 = CATransform3DMakeTranslation(horizontalOffset * (1 - r2), y_offset * (1 - r2), 0);}else {tm1 = CATransform3DMakeTranslation(horizontalOffset * (1 - r1), -y_offset * (1 - r1), 0);tm2 = CATransform3DMakeTranslation(horizontalOffset * (1 - r2), -y_offset * (1 - r2), 0);}tm1 = CATransform3DScale(tm1, r1, r1, 1);tm2 = CATransform3DScale(tm2, r2, r2, 1);positionAnimation.values = [NSArray arrayWithObjects:[NSValue valueWithCATransform3D:tm1],[NSValue valueWithCATransform3D:tm2],nil];positionAnimation.keyTimes = [NSArray arrayWithObjects: [NSNumber numberWithFloat:0], [NSNumber numberWithFloat:1.0], nil];CAAnimationGroup *group = [CAAnimationGroup animation];group.animations = [NSArray arrayWithObjects:positionAnimation, alphaAnimation, nil];group.duration = DISMISS_ANIMATION_DURATION;group.removedOnCompletion = NO;group.fillMode = kCAFillModeForwards;group.delegate = self;[self.layer addAnimation:group forKey:@"hoge"];}#pragma mark - Drawing- (void)makePathCircleCornerRect:(CGRect)rect radius:(float)radius popPoint:(CGPoint)popPoint { CGContextRef context = UIGraphicsGetCurrentContext();if (direction & SNPopupViewUp) {rect.size.height -= POPUP_ROOT_SIZE.height; CGFloat minx = CGRectGetMinX( rect ), midx = CGRectGetMidX( rect ), maxx = CGRectGetMaxX( rect );CGFloat miny = CGRectGetMinY( rect ), midy = CGRectGetMidY( rect ), maxy = CGRectGetMaxY( rect );CGFloat popRightEdgeX = popPoint.x + (int)POPUP_ROOT_SIZE.width / 2;CGFloat popRightEdgeY = maxy;CGFloat popLeftEdgeX = popPoint.x - (int)POPUP_ROOT_SIZE.width / 2;CGFloat popLeftEdgeY = maxy;CGContextMoveToPoint(context, minx, midy);CGContextAddArcToPoint(context, minx, miny, midx, miny, radius);CGContextAddArcToPoint(context, maxx, miny, maxx, midy, radius);CGContextAddArcToPoint(context, maxx, maxy, popRightEdgeX, popRightEdgeY, radius);CGContextAddLineToPoint(context, popRightEdgeX, popRightEdgeY);CGContextAddLineToPoint(context, popPoint.x, popPoint.y);CGContextAddLineToPoint(context, popLeftEdgeX, popLeftEdgeY);CGContextAddArcToPoint(context, minx, maxy, minx, midy, radius);CGContextAddLineToPoint(context, minx, midy);}else {rect.origin.y += POPUP_ROOT_SIZE.height;rect.size.height -= POPUP_ROOT_SIZE.height; CGFloat minx = CGRectGetMinX( rect ), midx = CGRectGetMidX( rect ), maxx = CGRectGetMaxX( rect );CGFloat miny = CGRectGetMinY( rect ), midy = CGRectGetMidY( rect ), maxy = CGRectGetMaxY( rect );CGFloat popRightEdgeX = popPoint.x + (int)POPUP_ROOT_SIZE.width / 2;CGFloat popRightEdgeY = miny;CGFloat popLeftEdgeX = popPoint.x - (int)POPUP_ROOT_SIZE.width / 2;CGFloat popLeftEdgeY = miny;CGContextMoveToPoint(context, minx, midy);CGContextAddArcToPoint(context, minx, miny, midx, miny, radius);CGContextAddLineToPoint(context, popLeftEdgeX, popLeftEdgeY);CGContextAddLineToPoint(context, popPoint.x, popPoint.y);CGContextAddLineToPoint(context, popRightEdgeX, popRightEdgeY);CGContextAddArcToPoint(context, maxx, miny, maxx, midy, radius);CGContextAddArcToPoint(context, maxx, maxy, midx, maxy, radius);CGContextAddArcToPoint(context, minx, maxy, minx, midy, radius);}}- (void)makeGrowingPathCircleCornerRect:(CGRect)rect radius:(float)radius {CGContextRef context = UIGraphicsGetCurrentContext();rect.origin.y += 1;rect.origin.x += 1;rect.size.width -= 2; CGFloat minx = CGRectGetMinX( rect ), midx = CGRectGetMidX( rect ), maxx = CGRectGetMaxX( rect ); CGFloat miny = CGRectGetMinY( rect ), midy = CGRectGetMidY( rect );CGFloat rightEdgeX = minx;CGFloat rightEdgeY = midy - 10;CGFloat leftEdgeX = maxx;CGFloat leftEdgeY = midy - 10; CGContextMoveToPoint(context, rightEdgeX, rightEdgeY); CGContextAddArcToPoint(context, minx, miny, midx, miny, radius); CGContextAddArcToPoint(context, maxx, miny, maxx, midy, radius); CGContextAddLineToPoint(context, leftEdgeX, leftEdgeY);}#pragma mark - Override- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {DNSLogMethodif ([self shouldBeDismissedFor:touches withEvent:event] && peekView != nil) {[self dismissModal];return;}if ([target respondsToSelector:action]) {[target performSelector:action withObject:self];}}- (void)drawRect:(CGRect)rect {CGContextRef context = UIGraphicsGetCurrentContext(); #ifdef _CONFIRM_REGIONCGContextFillRect(context, rect);CGContextSetRGBFillColor(context, 1, 0, 0, 1);CGContextFillRect(context, popupRect);CGContextSetRGBFillColor(context, 1, 1, 0, 1);CGContextFillRect(context, contentRect);#endif CGContextSaveGState(context);CGContextSetRGBFillColor(context, 0.1, 0.1, 0.1, ALPHA);CGContextSetShadowWithColor (context, CGSizeMake(0, 2), 2, [[UIColor colorWithRed:0 green:0 blue:0 alpha:0.5] CGColor]);[self makePathCircleCornerRect:popupRect radius:10 popPoint:pointToBeShown];CGContextClosePath(context);CGContextFillPath(context);CGContextRestoreGState(context); CGContextSaveGState(context);[self makePathCircleCornerRect:popupRect radius:10 popPoint:pointToBeShown];CGContextClip(context);if (direction & SNPopupViewUp) {CGContextDrawLinearGradient(context, gradient, CGPointMake(0, popupRect.origin.y), CGPointMake(0, popupRect.origin.y + (int)(popupRect.size.height-POPUP_ROOT_SIZE.height) / 2), 0);CGContextDrawLinearGradient(context, gradient2, CGPointMake(0, popupRect.origin.y + (int)(popupRect.size.height-POPUP_ROOT_SIZE.height) / 2), CGPointMake(0, popupRect.origin.y + popupRect.size.height-POPUP_ROOT_SIZE.height), 0);}else {int h = (int)(popupRect.size.height - POPUP_ROOT_SIZE.height);CGContextDrawLinearGradient(context, gradient, CGPointMake(0, popupRect.origin.y + POPUP_ROOT_SIZE.height), CGPointMake(0, popupRect.origin.y + h / 2 + POPUP_ROOT_SIZE.height), 0);CGContextDrawLinearGradient(context, gradient2, CGPointMake(0, popupRect.origin.y + h / 2 + POPUP_ROOT_SIZE.height), CGPointMake(0, popupRect.origin.y + popupRect.size.height), 0);}CGContextRestoreGState(context); if ([title length]) {CGContextSetRGBFillColor(context, 1, 1, 1, 1);UIFont *font = [UIFont boldSystemFontOfSize:fontSize];[title drawInRect:contentRect withFont:font];}if (image) {[image drawInRect:contentRect];}}#pragma mark - dealloc- (void)dealloc {DNSLogMethodCGGradientRelease(gradient);CGGradientRelease(gradient2);[peekView release];[title release];[image release];[contentView release]; [super dealloc];}@end
#import "SNPopupView.h"@interface SNPopupView(UsingPrivateMethod)- (void)showFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView;- (void)showFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView animated:(BOOL)animated;- (void)presentModalFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView;- (void)presentModalFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView animated:(BOOL)animated;@end
#import "SNPopupView+UsingPrivateMethod.h"@interface SNPopupView(UsingPrivateMethod_Private)- (void)createAndAttachTouchPeekView;@end@implementation SNPopupView(UsingPrivateMethod)- (void)presentModalFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView {animatedWhenAppering = YES;[self createAndAttachTouchPeekView];[self showFromBarButtonItem:barButtonItem inView:[[UIApplication sharedApplication] keyWindow]];}- (void)presentModalFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView animated:(BOOL)animated {animatedWhenAppering = animated;[self createAndAttachTouchPeekView];[self showFromBarButtonItem:barButtonItem inView:[[UIApplication sharedApplication] keyWindow] animated:animated];}- (void)showFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView {[self showFromBarButtonItem:barButtonItem inView:inView animated:YES];}- (void)showFromBarButtonItem:(UIBarButtonItem *)barButtonItem inView:(UIView *)inView animated:(BOOL)animated {if(![barButtonItem respondsToSelector:@selector(view)]) {return;}UIView *targetView = (UIView *)[barButtonItem performSelector:@selector(view)];UIView *targetSuperview = [targetView superview];BOOL isOnNavigationBar = YES;if ([targetSuperview isKindOfClass:[UINavigationBar class]]) {isOnNavigationBar = YES;}else if ([targetSuperview isKindOfClass:[UIToolbar class]]) {isOnNavigationBar = NO;}else {return;}CGRect rect = [targetSuperview convertRect:targetView.frame toView:inView];CGPoint p;p.x = rect.origin.x + (int)rect.size.width / 2;if (isOnNavigationBar)p.y = rect.origin.y + rect.size.height + BAR_BUTTON_ITEM_UPPER_MARGIN;elsep.y = rect.origin.y - BAR_BUTTON_ITEM_BOTTOM_MARGIN;[self showAtPoint:p inView:inView animated:animated];}@end
#import <UIKit/UIKit.h>#import "SNPopupView.h"#import "SNPopupView+UsingPrivateMethod.h"@interface PopupViewTestViewController : UIViewController <SNPopupViewModalDelegate> {SNPopupView*popup;intcurrentMessageIndex;IBOutlet UIView *testContentView;IBOutlet UISwitch *animationSwitch;IBOutlet UISwitch *modalSwitch;}- (IBAction)pushButton:(id)sender;- (void)didDismissModal:(SNPopupView *)popupview;- (void)didTouchPopupView:(SNPopupView *)sender;@end
#import "PopupViewTestViewController.h"@implementation PopupViewTestViewController- (IBAction)pushButton:(id)sender {DNSLogMethodif (popup == nil) {if (currentMessageIndex == 0) {popup = [[SNPopupView alloc] initWithContentView:testContentView contentSize:CGSizeMake(203, 63)];currentMessageIndex++;}else if (currentMessageIndex == 1) {popup = [[SNPopupView alloc] initWithString:@"test message" withFontOfSize:29];currentMessageIndex++;}else if (currentMessageIndex == 2) {popup = [[SNPopupView alloc] initWithImage:[UIImage imageNamed:@"2tchSmall.png"]];currentMessageIndex = 0;}if (modalSwitch.on)[popup presentModalFromBarButtonItem:sender inView:self.view animated:animationSwitch.on];else[popup showFromBarButtonItem:sender inView:self.view animated:animationSwitch.on];[popup addTarget:self action:@selector(didTouchPopupView:)];[popup release];[popup setDelegate:self];}else if (!modalSwitch.on) {[popup dismiss:animationSwitch.on];popup = nil;}}- (void)didTouchPopupView:(SNPopupView *)sender {DNSLogMethodDNSLog(@"%@", sender);}- (void)didDismissModal:(SNPopupView *)popupview {DNSLogMethodif (popupview == popup) {popup = nil;}}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {UITouch *touch = [touches anyObject];if (popup == nil) {if (currentMessageIndex == 0) {popup = [[SNPopupView alloc] initWithImage:[UIImage imageNamed:@"2tchSmall.png"]];currentMessageIndex++;}else if (currentMessageIndex == 1) {popup = [[SNPopupView alloc] initWithString:@"test message" withFontOfSize:16];currentMessageIndex++;}else if (currentMessageIndex == 2) {popup = [[SNPopupView alloc] initWithContentView:testContentView contentSize:CGSizeMake(203, 63)];currentMessageIndex = 0;}if (modalSwitch.on)[popup presentModalAtPoint:[touch locationInView:self.view] inView:self.view animated:animationSwitch.on];else[popup showAtPoint:[touch locationInView:self.view] inView:self.view animated:animationSwitch.on];[popup addTarget:self action:@selector(didTouchPopupView:)];[popup release];[popup setDelegate:self];}else if (!modalSwitch.on) {[popup dismiss:animationSwitch.on];popup = nil;}}@end
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