1、MJPopupBackgroundView

1.1 MJPopupBackgroundView.h

//

//  MJPopupBackgroundView.h

//  watched

//

//  Created by Martin Juhasz on 18.06.12.

//  Copyright (c) 2012 martinjuhasz.de. All rights reserved.

//

#import <UIKit/UIKit.h>

@interface MJPopupBackgroundView : UIView

@end

1.2 MJPopupBackgroundView.h

//

//  MJPopupBackgroundView.m

//  watched

//

//  Created by Martin Juhasz on 18.06.12.

//  Copyright (c) 2012 martinjuhasz.de. All rights reserved.

//

#import "MJPopupBackgroundView.h"

@implementation MJPopupBackgroundView

- (void)drawRect:(CGRect)rect

{

    CGContextRef context = UIGraphicsGetCurrentContext();

    size_t locationsCount = 2;

    CGFloat locations[2] = {0.0f, 1.0f};

    CGFloat colors[8] = {0.0f,0.0f,0.0f,0.0f,0.0f,0.0f,0.0f,0.75f};

    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

    CGGradientRef gradient = CGGradientCreateWithColorComponents(colorSpace, colors, locations, locationsCount);

    CGColorSpaceRelease(colorSpace);

    CGPoint center = CGPointMake(self.bounds.size.width/2, self.bounds.size.height/2);

    float radius = MIN(self.bounds.size.width , self.bounds.size.height) ;

    CGContextDrawRadialGradient (context, gradient, center, 0, center, radius, kCGGradientDrawsAfterEndLocation);

    CGGradientRelease(gradient);

}

@end

2、UIViewController+MJPopupViewController

2.1 UIViewController+MJPopupViewController.h

//

//  UIViewController+MJPopupViewController.h

//  MJModalViewController

//

//  Created by Martin Juhasz on 11.05.12.

//  Copyright (c) 2012 martinjuhasz.de. All rights reserved.

//

#import <UIKit/UIKit.h>

@class MJPopupBackgroundView;

typedef enum {

    MJPopupViewAnimationFade = 0,

    MJPopupViewAnimationSlideBottomTop = 1,

    MJPopupViewAnimationSlideBottomBottom,

    MJPopupViewAnimationSlideTopTop,

    MJPopupViewAnimationSlideTopBottom,

    MJPopupViewAnimationSlideLeftLeft,

    MJPopupViewAnimationSlideLeftRight,

    MJPopupViewAnimationSlideRightLeft,

    MJPopupViewAnimationSlideRightRight,

} MJPopupViewAnimation;

@interface UIViewController (MJPopupViewController)

@property (nonatomic, retain) UIViewController *mj_popupViewController;

@property (nonatomic, retain) MJPopupBackgroundView *mj_popupBackgroundView;

- (void)presentPopupViewController:(UIViewController*)popupViewController animationType:(MJPopupViewAnimation)animationType;

- (void)presentPopupViewController:(UIViewController*)popupViewController animationType:(MJPopupViewAnimation)animationType dismissed:(void(^)(void))dismissed;

- (void)dismissPopupViewControllerWithanimationType:(MJPopupViewAnimation)animationType;

@end

2.1 UIViewController+MJPopupViewController.m

//

//  UIViewController+MJPopupViewController.m

//  MJModalViewController

//

//  Created by Martin Juhasz on 11.05.12.

//  Copyright (c) 2012 martinjuhasz.de. All rights reserved.

//

#import "UIViewController+MJPopupViewController.h"

#import <QuartzCore/QuartzCore.h>

#import "MJPopupBackgroundView.h"

#import <objc/runtime.h>

#define kPopupModalAnimationDuration 0.35

#define kMJPopupViewController @"kMJPopupViewController"

#define kMJPopupBackgroundView @"kMJPopupBackgroundView"

#define kMJSourceViewTag 23941

#define kMJPopupViewTag 23942

#define kMJOverlayViewTag 23945

@interface UIViewController (MJPopupViewControllerPrivate)

- (UIView*)topView;

- (void)presentPopupView:(UIView*)popupView;

@end

static NSString *MJPopupViewDismissedKey = @"MJPopupViewDismissed";

static BOOL boards = NO;

static BOOL MJPopupViewisShow = NO;

////////////////////////////////////////////////////////////////////////////

#pragma mark -

#pragma mark Public

@implementation UIViewController (MJPopupViewController)

static void * const keypath = (void*)&keypath;

- (UIViewController*)mj_popupViewController {

    return objc_getAssociatedObject(self, kMJPopupViewController);

}

- (void)setMj_popupViewController:(UIViewController *)mj_popupViewController {

    objc_setAssociatedObject(self, kMJPopupViewController, mj_popupViewController, OBJC_ASSOCIATION_RETAIN_NONATOMIC);

}

- (MJPopupBackgroundView*)mj_popupBackgroundView {

    return objc_getAssociatedObject(self, kMJPopupBackgroundView);

}

- (void)setMj_popupBackgroundView:(MJPopupBackgroundView *)mj_popupBackgroundView {

    objc_setAssociatedObject(self, kMJPopupBackgroundView, mj_popupBackgroundView, OBJC_ASSOCIATION_RETAIN_NONATOMIC);

}

- (void)presentPopupViewController:(UIViewController*)popupViewController animationType:(MJPopupViewAnimation)animationType dismissed:(void(^)(void))dismissed

{

    if (!MJPopupViewisShow) {

        MJPopupViewisShow = YES;

        self.mj_popupViewController = popupViewController;

        [self presentPopupView:popupViewController.view animationType:animationType dismissed:dismissed];

    }

}

- (void)presentPopupViewController:(UIViewController*)popupViewController animationType:(MJPopupViewAnimation)animationType

{

     [self presentPopupViewController:popupViewController animationType:animationType dismissed:nil];

}

- (void)dismissPopupViewControllerWithanimationType:(MJPopupViewAnimation)animationType

{

    MJPopupViewisShow = NO;

    [[NSNotificationCenter defaultCenter] postNotificationName:@"MJPopupViewDismiss" object:nil];

    UIView *sourceView = [self topView];

    if (sourceView.tag != kMJSourceViewTag && sourceView.tag == kMJPopupViewTag) {

        sourceView = [sourceView superview];

    }

    UIView *popupView = [sourceView viewWithTag:kMJPopupViewTag];

    UIView *overlayView = [sourceView viewWithTag:kMJOverlayViewTag];

    switch (animationType) {

        case MJPopupViewAnimationSlideBottomTop:

        case MJPopupViewAnimationSlideBottomBottom:

        case MJPopupViewAnimationSlideTopTop:

        case MJPopupViewAnimationSlideTopBottom:

        case MJPopupViewAnimationSlideLeftLeft:

        case MJPopupViewAnimationSlideLeftRight:

        case MJPopupViewAnimationSlideRightLeft:

        case MJPopupViewAnimationSlideRightRight:

            [self slideViewOut:popupView sourceView:sourceView overlayView:overlayView withAnimationType:animationType];

            break;

        default:

            [self fadeViewOut:popupView sourceView:sourceView overlayView:overlayView];

            break;

    }

}

////////////////////////////////////////////////////////////////////////////

#pragma mark -

#pragma mark View Handling

- (void)presentPopupView:(UIView*)popupView animationType:(MJPopupViewAnimation)animationType

{

    if (!MJPopupViewisShow) {

        MJPopupViewisShow = YES;

        [self presentPopupView:popupView animationType:animationType dismissed:nil];

    }

}

- (void)keyboardAppearanced

{

    boards = YES;

}

- (void)keyboardDismissed

{

    boards = NO;

}

- (void)presentPopupView:(UIView*)popupView animationType:(MJPopupViewAnimation)animationType dismissed:(void(^)(void))dismissed

{

    boards = NO;

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardAppearanced) name:UIKeyboardDidShowNotification object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDismissed) name:UIKeyboardDidHideNotification object:nil];

    UIView *sourceView = [self topView];

    sourceView.tag = kMJSourceViewTag;

    popupView.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin |UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleRightMargin;

    popupView.tag = kMJPopupViewTag;

    // check if source view controller is not in destination

    if ([sourceView.subviews containsObject:popupView]) return;

    // customize popupView

    popupView.layer.shadowPath = [UIBezierPath bezierPathWithRect:popupView.bounds].CGPath;

    popupView.layer.masksToBounds = YES;

    popupView.layer.shadowOffset = CGSizeMake(5, 5);

    popupView.layer.shadowRadius = 5;

    popupView.layer.shadowOpacity = 0.5;

    popupView.layer.cornerRadius = 5;

    popupView.layer.shouldRasterize = YES;

    popupView.layer.rasterizationScale = [[UIScreen mainScreen] scale];

    // Add semi overlay

    UIView *overlayView = [[UIView alloc] initWithFrame:sourceView.bounds];

    overlayView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

    overlayView.tag = kMJOverlayViewTag;

    overlayView.backgroundColor = [UIColor clearColor];

    // BackgroundView

    self.mj_popupBackgroundView = [[MJPopupBackgroundView alloc] initWithFrame:sourceView.bounds];

    self.mj_popupBackgroundView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

    self.mj_popupBackgroundView.backgroundColor = [UIColor clearColor];

    self.mj_popupBackgroundView.alpha = 0.0f;

    [overlayView addSubview:self.mj_popupBackgroundView];

    // Make the Background Clickable

    UIButton * dismissButton = [UIButton buttonWithType:UIButtonTypeCustom];

    dismissButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

    dismissButton.backgroundColor = [UIColor clearColor];

    dismissButton.frame = sourceView.bounds;

    [overlayView addSubview:dismissButton];

    popupView.alpha = 0.0f;

    [overlayView addSubview:popupView];

    [sourceView addSubview:overlayView];

    [dismissButton addTarget:self action:@selector(dismissPopupViewControllerWithanimation:) forControlEvents:UIControlEventTouchUpInside];

    switch (animationType) {

        case MJPopupViewAnimationSlideBottomTop:

        case MJPopupViewAnimationSlideBottomBottom:

        case MJPopupViewAnimationSlideTopTop:

        case MJPopupViewAnimationSlideTopBottom:

        case MJPopupViewAnimationSlideLeftLeft:

        case MJPopupViewAnimationSlideLeftRight:

        case MJPopupViewAnimationSlideRightLeft:

        case MJPopupViewAnimationSlideRightRight:

            dismissButton.tag = animationType;

            [self slideViewIn:popupView sourceView:sourceView overlayView:overlayView withAnimationType:animationType];

            break;

        default:

            dismissButton.tag = MJPopupViewAnimationFade;

            [self fadeViewIn:popupView sourceView:sourceView overlayView:overlayView];

            break;

    }

    [self setDismissedCallback:dismissed];

}

- (UIView*)topView {

    UIViewController *recentView = self;

    while (recentView.parentViewController != nil) {

        recentView = recentView.parentViewController;

    }

    return recentView.view;

}

- (void)dismissPopupViewControllerWithanimation:(id)sender

{

    if (boards)

    {

        [[NSNotificationCenter defaultCenter] postNotificationName:@"disMissKeyBoard" object:nil];

        return ;

    }

    if ([sender isKindOfClass:[UIButton class]]) {

        UIButton* dismissButton = sender;

        switch (dismissButton.tag) {

            case MJPopupViewAnimationSlideBottomTop:

            case MJPopupViewAnimationSlideBottomBottom:

            case MJPopupViewAnimationSlideTopTop:

            case MJPopupViewAnimationSlideTopBottom:

            case MJPopupViewAnimationSlideLeftLeft:

            case MJPopupViewAnimationSlideLeftRight:

            case MJPopupViewAnimationSlideRightLeft:

            case MJPopupViewAnimationSlideRightRight:

                [self dismissPopupViewControllerWithanimationType:(int)dismissButton.tag];

                break;

            default:

                [self dismissPopupViewControllerWithanimationType:MJPopupViewAnimationFade];

                break;

        }

    } else {

        [self dismissPopupViewControllerWithanimationType:MJPopupViewAnimationFade];

    }

}

//////////////////////////////////////////////////////////////////////////////

#pragma mark -

#pragma mark Animations

#pragma mark --- Slide

- (void)slideViewIn:(UIView*)popupView sourceView:(UIView*)sourceView overlayView:(UIView*)overlayView withAnimationType:(MJPopupViewAnimation)animationType

{

    // Generating Start and Stop Positions

    CGSize sourceSize = sourceView.bounds.size;

    CGSize popupSize = popupView.bounds.size;

    CGRect popupStartRect;

    switch (animationType) {

        case MJPopupViewAnimationSlideBottomTop:

        case MJPopupViewAnimationSlideBottomBottom:

            popupStartRect = CGRectMake((sourceSize.width - popupSize.width) / 2,

                                        sourceSize.height,

                                        popupSize.width,

                                        popupSize.height);

            break;

        case MJPopupViewAnimationSlideLeftLeft:

        case MJPopupViewAnimationSlideLeftRight:

            popupStartRect = CGRectMake(-sourceSize.width,

                                        (sourceSize.height - popupSize.height) / 2,

                                        popupSize.width,

                                        popupSize.height);

            break;

        case MJPopupViewAnimationSlideTopTop:

        case MJPopupViewAnimationSlideTopBottom:

            popupStartRect = CGRectMake((sourceSize.width - popupSize.width) / 2,

                                        -popupSize.height,

                                        popupSize.width,

                                        popupSize.height);

            break;

        default:

            popupStartRect = CGRectMake(sourceSize.width,

                                        (sourceSize.height - popupSize.height) / 2,

                                        popupSize.width,

                                        popupSize.height);

            break;

    }

    CGRect popupEndRect = CGRectMake((sourceSize.width - popupSize.width) / 2,

                                     (sourceSize.height - popupSize.height) / 2,

                                     popupSize.width,

                                     popupSize.height);

    // Set starting properties

    popupView.frame = popupStartRect;

    popupView.alpha = 1.0f;

    [UIView animateWithDuration:kPopupModalAnimationDuration delay:0.0f options:UIViewAnimationOptionCurveEaseOut animations:^{

        [self.mj_popupViewController viewWillAppear:NO];

        self.mj_popupBackgroundView.alpha = 1.0f;

        popupView.frame = popupEndRect;

    } completion:^(BOOL finished) {

        [self.mj_popupViewController viewDidAppear:NO];

    }];

}

- (void)slideViewOut:(UIView*)popupView sourceView:(UIView*)sourceView overlayView:(UIView*)overlayView withAnimationType:(MJPopupViewAnimation)animationType

{

    // Generating Start and Stop Positions

    CGSize sourceSize = sourceView.bounds.size;

    CGSize popupSize = popupView.bounds.size;

    CGRect popupEndRect;

    switch (animationType) {

        case MJPopupViewAnimationSlideBottomTop:

        case MJPopupViewAnimationSlideTopTop:

            popupEndRect = CGRectMake((sourceSize.width - popupSize.width) / 2,

                                      -popupSize.height,

                                      popupSize.width,

                                      popupSize.height);

            break;

        case MJPopupViewAnimationSlideBottomBottom:

        case MJPopupViewAnimationSlideTopBottom:

            popupEndRect = CGRectMake((sourceSize.width - popupSize.width) / 2,

                                      sourceSize.height,

                                      popupSize.width,

                                      popupSize.height);

            break;

        case MJPopupViewAnimationSlideLeftRight:

        case MJPopupViewAnimationSlideRightRight:

            popupEndRect = CGRectMake(sourceSize.width,

                                      popupView.frame.origin.y,

                                      popupSize.width,

                                      popupSize.height);

            break;

        default:

            popupEndRect = CGRectMake(-popupSize.width,

                                      popupView.frame.origin.y,

                                      popupSize.width,

                                      popupSize.height);

            break;

    }

    [UIView animateWithDuration:kPopupModalAnimationDuration delay:0.0f options:UIViewAnimationOptionCurveEaseIn animations:^{

        [self.mj_popupViewController viewWillDisappear:NO];

        popupView.frame = popupEndRect;

        self.mj_popupBackgroundView.alpha = 0.0f;

    } completion:^(BOOL finished) {

        [popupView removeFromSuperview];

        [overlayView removeFromSuperview];

        [self.mj_popupViewController viewDidDisappear:NO];

        self.mj_popupViewController = nil;

        id dismissed = [self dismissedCallback];

        if (dismissed != nil)

        {

            ((void(^)(void))dismissed)();

            [self setDismissedCallback:nil];

        }

    }];

}

#pragma mark --- Fade

- (void)fadeViewIn:(UIView*)popupView sourceView:(UIView*)sourceView overlayView:(UIView*)overlayView

{

    // Generating Start and Stop Positions

    CGSize sourceSize = sourceView.bounds.size;

    CGSize popupSize = popupView.bounds.size;

    CGRect popupEndRect = CGRectMake((sourceSize.width - popupSize.width) / 2,

                                     (sourceSize.height - popupSize.height) / 2,

                                     popupSize.width,

                                     popupSize.height);

    // Set starting properties

    popupView.frame = popupEndRect;

    popupView.alpha = 0.0f;

    [UIView animateWithDuration:kPopupModalAnimationDuration animations:^{

        [self.mj_popupViewController viewWillAppear:NO];

        self.mj_popupBackgroundView.alpha = 0.5f;

        popupView.alpha = 1.0f;

    } completion:^(BOOL finished) {

        [self.mj_popupViewController viewDidAppear:NO];

    }];

}

- (void)fadeViewOut:(UIView*)popupView sourceView:(UIView*)sourceView overlayView:(UIView*)overlayView

{

    [UIView animateWithDuration:kPopupModalAnimationDuration animations:^{

        [self.mj_popupViewController viewWillDisappear:NO];

        self.mj_popupBackgroundView.alpha = 0.0f;

        popupView.alpha = 0.0f;

    } completion:^(BOOL finished) {

        [popupView removeFromSuperview];

        [overlayView removeFromSuperview];

        [self.mj_popupViewController viewDidDisappear:NO];

        self.mj_popupViewController = nil;

        id dismissed = [self dismissedCallback];

        if (dismissed != nil)

        {

            ((void(^)(void))dismissed)();

            [self setDismissedCallback:nil];

        }

    }];

}

#pragma mark - Category Accessors

#pragma mark --- Dismissed

- (void)setDismissedCallback:(void(^)(void))dismissed

{

    objc_setAssociatedObject(self, &MJPopupViewDismissedKey, dismissed, OBJC_ASSOCIATION_RETAIN);

}

- (void(^)(void))dismissedCallback

{

    return objc_getAssociatedObject(self, &MJPopupViewDismissedKey);

}

@end

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UIViewController+MJPopupViewController

1、MJPopupBackgroundView

1.1 MJPopupBackgroundView.h

1.2 MJPopupBackgroundView.h

2、UIViewController+MJPopupViewController

2.1 UIViewController+MJPopupViewController.h

2.1 UIViewController+MJPopupViewController.m

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