iOS通知中心 支付弹出视图

你可以在一个界面发送通知，比如说在button的点击事件里面。当点击之后你想弹出视图。

但是你这个button并不是在控制器里直接写的。这时候就可以使用。

发送通知

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

另一个界面接受通知，并且要对应。

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ttNewAction:) name:@"ttnew" object:nil];

接受通知时先删除，放置视图多次弹出。写的时候就遇到了这个问题。

[[NSNotificationCenter defaultCenter] removeObserver:self name:@"ttnew" object:nil];

实现通知方法。

最后移除

- (void)dealloc

{

[[NSNotificationCenter defaultCenter] removeObserver:self name:@"ttnew" object:nil];

}

完成 。。。。nice。下面是具体的代码。


```

//提交按钮

//footer

UIView *footerview = [[UIView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, 200)];

footerview.backgroundColor = [UIColor groupTableViewBackgroundColor];

UIButton *tijiaoBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];

tijiaoBtn.frame = CGRectMake(30, 200/ 2 - 30, SCREEN_WIDTH - 60, 60);

[tijiaoBtn setTitle:@"提交信息" forState:(UIControlStateNormal)];

[tijiaoBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];

tijiaoBtn.layer.cornerRadius = 10;

tijiaoBtn.layer.masksToBounds = YES;

tijiaoBtn.backgroundColor = NavBarColor;

[tijiaoBtn addTarget:self action:@selector(tijiaoAction:) forControlEvents:(UIControlEventTouchUpInside)];

[footerview addSubview:tijiaoBtn];

tableview.tableFooterView = footer view;


//按钮点击事件。通知视图弹出

- (void)tijiaoAction:(UIButton *)sender

{

TTNewViewController *ttnew = [TTNewViewController new];

ttnew.detail = @"是否确认提交认证信息？PS：已经认证将无法修改！";

ttnew.titleStr = @"温馨提示";

[ttnew show];

//点击了确定按钮之后弹出第二个框。。

//先将通知进行删除

[[NSNotificationCenter defaultCenter] removeObserver:self name:@"ttnew" object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ttNewAction:) name:@"ttnew" object:nil];

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

}


- (void)ttNewAction:(NSNotification *)note

{

TTViewController 是一个封装的弹出视图。代码在下方。

TTViewController *tt = [TTViewController new];

tt.detail = @"您已提交申请提现，请耐心等待后台审核!";

tt.titleStr = @"温馨提示";

[tt show];

}

最后删除通知。

- (void)dealloc

{

[[NSNotificationCenter defaultCenter] removeObserver:self name:@"fengfeng" object:nil];

}


.h中的内容。

#import@interface TTViewController : UIViewController

@property (nonatomic, copy) NSString *titleStr, *detail;

- (void)show;

@end

.m中的内容

#import "TTNewViewController.h"

#define TITLE_HEIGHT 46

#define PAYMENT_WIDTH [UIScreen mainScreen].bounds.size.width-80

#define PWD_COUNT 6

#define DOT_WIDTH 10

#define KEYBOARD_HEIGHT 216

#define KEY_VIEW_DISTANCE 100

#define ALERT_HEIGHT 200

@interface TTNewViewController ()

{

UILabel *titleLab, *detailLab, *line1, *line2;

UIButton *cancelBtn;

UIButton *yesBtn;

}

@property (nonatomic, strong) UIWindow *showWindow;

@property (nonatomic, strong) UIView *paymentAlert, *inputView;

@end

@implementation TTNewViewController

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view.

}

- (instancetype)init {

self = [super init];

if (self) {

self.view.frame = [UIScreen mainScreen].bounds;

self.view.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:.3f];

[self drawView];

}

return self;

}

- (void)drawView

{

if (!_paymentAlert) {

_paymentAlert = [[UIView alloc]initWithFrame:CGRectMake(40, SCREEN_HEIGHT-526, SCREEN_WIDTH-80, 200)];

_paymentAlert.layer.cornerRadius = 5.f;

_paymentAlert.layer.masksToBounds = YES;

_paymentAlert.backgroundColor = [UIColor whiteColor];

[self.view addSubview:_paymentAlert];

titleLab = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH-80, 40)];

titleLab.textColor = [UIColor grayColor];

titleLab.textAlignment = NSTextAlignmentCenter;

titleLab.font = [UIFont systemFontOfSize:16];

[_paymentAlert addSubview:titleLab];

//

line1 = [[UILabel alloc] initWithFrame:CGRectMake(0, 40, SCREEN_WIDTH - 80, 1)];

line1.backgroundColor = [UIColor blackColor];

[_paymentAlert addSubview:line1];

//

detailLab = [[UILabel alloc] initWithFrame:CGRectMake(40, 50, SCREEN_WIDTH - 80 - 80, 100)];

detailLab.textColor = [UIColor blackColor];

detailLab.font = [UIFont systemFontOfSize:17];

detailLab.textAlignment = NSTextAlignmentCenter;

detailLab.numberOfLines = 0;

[_paymentAlert addSubview:detailLab];

line2 = [[UILabel alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(detailLab.frame) + 9, SCREEN_WIDTH - 80, 1)];

line2.backgroundColor = [UIColor blackColor];

[_paymentAlert addSubview:line2];

cancelBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];

cancelBtn.frame = CGRectMake(0, CGRectGetMaxY(line2.frame), (SCREEN_WIDTH - 80) /2 -1, 40);

[cancelBtn setTitle:@"取消" forState:(UIControlStateNormal)];

[cancelBtn setTitleColor:[UIColor blackColor] forState:(UIControlStateNormal)];

[cancelBtn addTarget:self action:@selector(cancelBtnAction) forControlEvents:(UIControlEventTouchUpInside)];

[_paymentAlert addSubview:cancelBtn];

//

yesBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];

yesBtn.frame = CGRectMake( (SCREEN_WIDTH - 80) / 2 + 1, CGRectGetMaxY(line2.frame), (SCREEN_WIDTH - 80) /2  - 1, 40);

[yesBtn setTitle:@"确定" forState:(UIControlStateNormal)];

[yesBtn setTitleColor:NavBarColor forState:(UIControlStateNormal)];

[yesBtn addTarget:self action:@selector(yesBtnAction:) forControlEvents:(UIControlEventTouchUpInside)];

[_paymentAlert addSubview:yesBtn];

UILabel *line3 = [[UILabel alloc] initWithFrame:CGRectMake((SCREEN_WIDTH - 80) /2  - 1, CGRectGetMaxY(line2.frame), 2, 40)];

line3.backgroundColor = NavBarColor;

[_paymentAlert addSubview:line3];

}

}

//确定按钮

- (void)yesBtnAction:(UIButton *)sender

{

[UIView animateWithDuration:0.3f animations:^{

_paymentAlert.transform = CGAffineTransformMakeScale(1.21f, 1.21f);

_paymentAlert.alpha = 0;

self.showWindow.alpha = 0;

} completion:^(BOOL finished) {

//            [self removeFromSuperview];

[self.showWindow removeFromSuperview];

[self.showWindow resignKeyWindow];

self.showWindow = nil;

}];

//发送通知

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

}

//取消按钮

- (void)cancelBtnAction

{

[UIView animateWithDuration:0.3f animations:^{

_paymentAlert.transform = CGAffineTransformMakeScale(1.21f, 1.21f);

_paymentAlert.alpha = 0;

self.showWindow.alpha = 0;

} completion:^(BOOL finished) {

//            [self removeFromSuperview];

[self.showWindow removeFromSuperview];

[self.showWindow resignKeyWindow];

self.showWindow = nil;

}];

}

- (void)show {

//    UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;

//    [keyWindow addSubview:self];

UIWindow *newWindow = [[UIWindow alloc]initWithFrame:self.view.bounds];

//    newWindow.backgroundColor = [UIColor clearColor];

newWindow.rootViewController = self;

[newWindow makeKeyAndVisible];

self.showWindow = newWindow;

_paymentAlert.transform = CGAffineTransformMakeScale(1.21f, 1.21f);

_paymentAlert.alpha = 0;

[UIView animateWithDuration:.7f delay:0.f usingSpringWithDamping:.7f initialSpringVelocity:1 options:UIViewAnimationOptionCurveEaseInOut animations:^{

_paymentAlert.transform = CGAffineTransformMakeScale(1.0f, 1.0f);

_paymentAlert.alpha = 1.0;

} completion:nil];

}

#pragma mark -

- (void)setTitleStr:(NSString *)titleStr {

_titleStr = titleStr;

titleLab.text = _titleStr;

}

- (void)setDetail:(NSString *)detail {

_detail = detail;

detailLab.text = _detail;

}

```

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