//

//  BackgroundView.h

//  TestHUD

//

//  Created by YouXianMing on 14-9-30.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import <UIKit/UIKit.h>

@interface BackgroundView : UIView

@property (nonatomic, assign) NSTimeInterval  startDuration; // 动画开始时持续时间

@property (nonatomic, assign) NSTimeInterval  endDuration;   // 动画结束时持续时间

- (instancetype)initInView:(UIView *)view;

// 开始附加到view中

- (void)addToView;

// 将自己从view中移除掉

- (void)removeSelf;

@end

//

//  BackgroundView.m

//  TestHUD

//

//  Created by YouXianMing on 14-9-30.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import "BackgroundView.h"

#ifdef DEBUG

#define BackgroundView_DLog(fmt, ...) NSLog((@"BackgroundView.m:%s:%d" fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);

#else

#define BackgroundView_DLog(...)

#endif

@interface BackgroundView ()

@property (nonatomic, weak) UIView   *inView;

@end

@implementation BackgroundView

- (instancetype)initInView:(UIView *)view

{

    self = [super initWithFrame:view.bounds];

    if (self) {

        _inView              = view;

        self.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.5f];

        self.alpha           = ;

    }

    return self;

}

- (void)addToView

{

    // 添加到view中

    [_inView addSubview:self];

    // 开始执行动画

    NSTimeInterval duration = 0.2;

    if (_startDuration > ) {

        duration = _startDuration;

    }

    [UIView animateWithDuration:duration animations:^{

        self.alpha = .f;

    }];

}

- (void)removeSelf

{

    // 开始执行动画

    NSTimeInterval duration = 0.2;

    if (_endDuration > ) {

        duration = _endDuration;

    }

    [UIView animateWithDuration:duration animations:^{

        self.alpha = .f;

    } completion:^(BOOL finished) {

        [self removeFromSuperview];

    }];

}

- (void)dealloc

{

    BackgroundView_DLog(@" 安全释放");

}

@end

//

//  UIView+BackgroundView.h

//  BackgroundView

//

//  Created by YouXianMing on 14-10-3.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import <UIKit/UIKit.h>

#import "BackgroundView.h"

typedef void (^ConfigBackgroundViewBlock)(BackgroundView *configView);

@interface UIView (BackgroundView)

- (void)showBackgroundViewAndConfig:(ConfigBackgroundViewBlock)block;

- (void)removeBackgroundView;

@end

//

//  UIView+BackgroundView.m

//  BackgroundView

//

//  Created by YouXianMing on 14-10-3.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import "UIView+BackgroundView.h"

#define TAG_DATA  0x3d2894

@implementation UIView (BackgroundView)

- (void)showBackgroundViewAndConfig:(ConfigBackgroundViewBlock)block

{

    if (self == nil) {

        return;

    }

    BackgroundView *backView = [[BackgroundView alloc] initInView:self];

    backView.tag = TAG_DATA;

    block(backView);

    [backView addToView];

}

- (void)removeBackgroundView

{

    BackgroundView *backView = (BackgroundView *)[self viewWithTag:TAG_DATA];

    if (backView) {

        [backView removeSelf];

    }

}

@end

//

//  ViewController.m

//  BackgroundView

//

//  Created by YouXianMing on 14-10-3.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import "ViewController.h"

#import "UIView+BackgroundView.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // 添加手势

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self

                                                                          action:@selector(tapEvent:)];

    [self.view addGestureRecognizer:tap];

    UILabel *label      = [[UILabel alloc] initWithFrame:self.view.bounds];

    label.text          = @"YouXianMing";

    label.textAlignment = NSTextAlignmentCenter;

    label.font          = [UIFont fontWithName:@"HelveticaNeue-Thin" size:.f];

    label.textColor     = [UIColor redColor];

    [self.view addSubview:label];

}

- (void)tapEvent:(UITapGestureRecognizer *)tap

{

    // 显示

    [self.view showBackgroundViewAndConfig:^(BackgroundView *configView) {

        configView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.6];

        configView.startDuration = 0.4f;

        configView.endDuration   = 0.4f;

    }];

    // 延迟3s执行

    [self performSelector:@selector(affterDelay)

               withObject:nil

               afterDelay:.f];

}

- (void)affterDelay

{

    // 隐藏

    [self.view removeBackgroundView];

}

@end