iOS自定义alertView提示框实例分享

本文实例为大家分享iOS自定义alertView提示框，先上图,弹框的背景色,按钮背景色,提示的消息的字体颜色都可以改变

利用单例实现丰富的自定义接口

//

// PBAlertController.h

// PBAlertDemo

//

// Created by 裴波波 on 16/4/20.

// Copyright © 2016年 裴波波. All rights reserved.

//

#import

typedef void(^PBBlock)();

@interface PBAlertController : UIViewController

/** 设置alertView背景色 */

@property (nonatomic, copy) UIColor *alertBackgroundColor;

/** 设置确定按钮背景色 */

@property (nonatomic, copy) UIColor *btnConfirmBackgroundColor;

/** 设置取消按钮背景色 */

@property (nonatomic, copy) UIColor *btnCancelBackgroundColor;

/** 设置message字体颜色 */

@property (nonatomic, copy) UIColor *messageColor;

/** 创建单例 */

+(instancetype)shareAlertController;

/** 弹出alertView以及点击确定回调的block */

-(void)alertViewControllerWithMessage:(NSString *)message andBlock:(PBBlock) block;

@end

.m文件中初始化控件以及对alertView的控件的属性进行懒加载,确定初始的颜色.

//

// PBAlertController.m

// PBAlertDemo

//

// Created by 裴波波 on 16/4/20.

// Copyright © 2016年 裴波波. All rights reserved.

//

#import "PBAlertController.h"

/** 屏幕尺寸 */

#define kMainScreenBounds [UIScreen mainScreen].bounds

@interface PBAlertController ()

/** 蒙版 */

@property (nonatomic, strong) UIView *coverView;

/** 弹框 */

@property (nonatomic, strong) UIView *alertView;

/** 点击确定回调的block */

@property (nonatomic, copy) PBBlock block;

@end

@implementation PBAlertController

- (void)viewDidLoad {

[super viewDidLoad];

self.view.backgroundColor = [UIColor whiteColor];

}

-(void)alertViewControllerWithMessage:(NSString *)message andBlock:(PBBlock) block{

self.block = block;

//创建蒙版

UIView * coverView = [[UIView alloc] initWithFrame:kMainScreenBounds];

self.coverView = coverView;

[self.view addSubview:coverView];

coverView.backgroundColor = [UIColor blackColor];

coverView.alpha = 0.7;

//创建提示框view

UIView * alertView = [[UIView alloc] init];

alertView.backgroundColor = self.alertBackgroundColor;

//设置圆角半径

alertView.layer.cornerRadius = 6.0;

self.alertView = alertView;

[self.view addSubview:alertView];

alertView.center = coverView.center;

alertView.bounds = CGRectMake(0, 0, kMainScreenBounds.size.width * 0.75, kMainScreenBounds.size.width * 0.75 * 1.5/ 3);

//创建操作提示 label

UILabel * label = [[UILabel alloc] init];

[alertView addSubview:label];

label.text = @"操作提示";

label.font = [UIFont systemFontOfSize:19];

label.textAlignment = NSTextAlignmentCenter;

CGFloat lblWidth = alertView.bounds.size.width;

CGFloat lblHigth = 22;

label.frame = CGRectMake(0, 0, lblWidth, lblHigth);

//创建中间灰色分割线

UIView * separateLine = [[UIView alloc] init];

separateLine.backgroundColor = [UIColor grayColor];

[alertView addSubview:separateLine];

separateLine.frame = CGRectMake(0, lblHigth + 1, alertView.bounds.size.width, 1);

//创建message label

UILabel * lblMessage = [[UILabel alloc] init];

lblMessage.textColor = self.messageColor;

[alertView addSubview:lblMessage];

lblMessage.text = message;

lblMessage.textAlignment = NSTextAlignmentCenter;

lblMessage.numberOfLines = 2; //最多显示两行Message

CGFloat margin = 5;

CGFloat msgX = margin;

CGFloat msgY = lblHigth + 3;

CGFloat msgW = alertView.bounds.size.width - 2 * margin;

CGFloat msgH = 44;

lblMessage.frame = CGRectMake(msgX, msgY, msgW, msgH);

//创建确定 取消按钮

CGFloat buttonWidth = (alertView.bounds.size.width - 4 * margin) * 0.5;

CGFloat buttonHigth = 25;

UIButton * btnCancel = [[UIButton alloc] init];

[alertView addSubview:btnCancel];

[btnCancel setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

[btnCancel setTitle:@"取消" forState:UIControlStateNormal];

[btnCancel setBackgroundColor:self.btnCancelBackgroundColor];

btnCancel.frame = CGRectMake(margin, alertView.bounds.size.height - margin - buttonHigth, buttonWidth, buttonHigth);

btnCancel.tag = 0;

[btnCancel addTarget:self action:@selector(didClickBtnConfirm:) forControlEvents:UIControlEventTouchUpInside];

//确定按钮

UIButton * btnConfirm = [[UIButton alloc] init];

btnConfirm.tag = 1;

[alertView addSubview:btnConfirm];

[btnConfirm setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

[btnConfirm setTitle:@"确定" forState:UIControlStateNormal];

[btnConfirm setBackgroundColor:self.btnConfirmBackgroundColor];

btnConfirm.frame = CGRectMake(alertView.bounds.size.width - margin - buttonWidth, alertView.bounds.size.height - margin - buttonHigth, buttonWidth, buttonHigth);

[btnConfirm addTarget:self action:@selector(didClickBtnConfirm:) forControlEvents:UIControlEventTouchUpInside];

}

/** 点击确定 or 取消触发事件 */

-(void)didClickBtnConfirm:(UIButton *)sender{

if (sender.tag == 0) {

[self dismissViewControllerAnimated:YES completion:nil];

return;

}

self.block();

[self dismissViewControllerAnimated:YES completion:nil];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

}

static PBAlertController * instance = nil;

+(instancetype)shareAlertController{

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

instance = [[PBAlertController alloc] init];

});

return instance;

}

-(UIColor *)alertBackgroundColor{

if (_alertBackgroundColor == nil) {

_alertBackgroundColor = [UIColor colorWithRed:249/255.0 green:249/255.0 blue:249/255.0 alpha:1];

}

return _alertBackgroundColor;

}

/** 确定按钮背景色 */

-(UIColor *)btnConfirmBackgroundColor{

if (_btnConfirmBackgroundColor == nil) {

_btnConfirmBackgroundColor = [UIColor orangeColor];

}

return _btnConfirmBackgroundColor;

}

/** 取消按钮背景色 */

-(UIColor *)btnCancelBackgroundColor{

if (_btnCancelBackgroundColor == nil) {

_btnCancelBackgroundColor = [UIColor blueColor];

}

return _btnCancelBackgroundColor;

}

/** message字体颜色 */

-(UIColor *)messageColor{

if (_messageColor == nil) {

_messageColor = [UIColor blackColor];

}

return _messageColor;

}

@end

在需要调用的地方进行调用

//

// ViewController.m

// PBAlertDemo

//

// Created by 裴波波 on 16/4/20.

// Copyright © 2016年 裴波波. All rights reserved.

//

#import "ViewController.h"

#import "PBAlertController.h"

@interface ViewController ()

@end

@implementation ViewController

//点击按钮弹出提示框

- (IBAction)clickShowAlertBtn:(id)sender {

PBAlertController * alertVc = [PBAlertController shareAlertController];

alertVc.messageColor = [UIColor redColor];

[alertVc alertViewControllerWithMessage:@"这是一message沙哈" andBlock:^{

NSLog(@"点击确定后执行的方法");

}];

alertVc.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;

[self presentModalViewController:alertVc animated:YES];

}

@end

以上就是本文的全部内容，希望对大家学习iOS程序设计有所帮助。相关阅读:

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