本文實例為年夜家分享IOS自界說alertView提醒框,先上圖,彈框的配景色,按鈕配景色,提醒的新聞的字體色彩都可以轉變
應用單例完成豐碩的自界說接口
// // PBAlertController.h // PBAlertDemo // // Created by 裴波波 on 16/4/20. // Copyright © 2016年 裴波波. All rights reserved. // #import <UIKit/UIKit.h> typedef void(^PBBlock)(); @interface PBAlertController : UIViewController /** 設置alertView配景色 */ @property (nonatomic, copy) UIColor *alertBackgroundColor; /** 設置肯定按鈕配景色 */ @property (nonatomic, copy) UIColor *btnConfirmBackgroundColor; /** 設置撤消按鈕配景色 */ @property (nonatomic, copy) UIColor *btnCancelBackgroundColor; /** 設置message字體色彩 */ @property (nonatomic, copy) UIColor *messageColor; /** 創立單例 */ +(instancetype)shareAlertController; /** 彈出alertView和點擊肯定回調的block */ -(void)alertViewControllerWithMessage:(NSString *)message andBlock:(PBBlock) block; @end
.m文件中初始化控件和對alertView的控件的屬性停止懶加載,肯定初始的色彩.
// // 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; /** 彈框 */ @property (nonatomic, strong) UIView *alertView; /** 點擊肯定回調的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; //創立蒙版 UIView * coverView = [[UIView alloc] initWithFrame:kMainScreenBounds]; self.coverView = coverView; [self.view addSubview:coverView]; coverView.backgroundColor = [UIColor blackColor]; coverView.alpha = 0.7; //創立提醒框view UIView * alertView = [[UIView alloc] init]; alertView.backgroundColor = self.alertBackgroundColor; //設置圓角半徑 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); //創立操作提醒 label UILabel * label = [[UILabel alloc] init]; [alertView addSubview:label]; label.text = @"操作提醒"; label.font = [UIFont systemFontOfSize:19]; label.textAlignment = NSTextAlignmentCenter; CGFloat lblWidth = alertView.bounds.size.width; CGFloat lblHigth = 22; label.frame = CGRectMake(0, 0, lblWidth, lblHigth); //創立中央灰色朋分線 UIView * separateLine = [[UIView alloc] init]; separateLine.backgroundColor = [UIColor grayColor]; [alertView addSubview:separateLine]; separateLine.frame = CGRectMake(0, lblHigth + 1, alertView.bounds.size.width, 1); //創立message label UILabel * lblMessage = [[UILabel alloc] init]; lblMessage.textColor = self.messageColor; [alertView addSubview:lblMessage]; lblMessage.text = message; lblMessage.textAlignment = NSTextAlignmentCenter; lblMessage.numberOfLines = 2; //最多顯示兩行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); //創立肯定 撤消按鈕 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:@"撤消" 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]; //肯定按鈕 UIButton * btnConfirm = [[UIButton alloc] init]; btnConfirm.tag = 1; [alertView addSubview:btnConfirm]; [btnConfirm setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; [btnConfirm setTitle:@"肯定" 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]; } /** 點擊肯定 or 撤消觸發事宜 */ -(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; } /** 肯定按鈕配景色 */ -(UIColor *)btnConfirmBackgroundColor{ if (_btnConfirmBackgroundColor == nil) { _btnConfirmBackgroundColor = [UIColor orangeColor]; } return _btnConfirmBackgroundColor; } /** 撤消按鈕配景色 */ -(UIColor *)btnCancelBackgroundColor{ if (_btnCancelBackgroundColor == nil) { _btnCancelBackgroundColor = [UIColor blueColor]; } return _btnCancelBackgroundColor; } /** message字體色彩 */ -(UIColor *)messageColor{ if (_messageColor == nil) { _messageColor = [UIColor blackColor]; } return _messageColor; } @end
在須要挪用的處所停止挪用
// // 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 //點擊按鈕彈出提醒框 - (IBAction)clickShowAlertBtn:(id)sender { PBAlertController * alertVc = [PBAlertController shareAlertController]; alertVc.messageColor = [UIColor redColor]; [alertVc alertViewControllerWithMessage:@"這是一message沙哈" andBlock:^{ NSLog(@"點擊肯定後履行的辦法"); }]; alertVc.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController:alertVc animated:YES]; } @end
以上就是本文的全體內容,願望對年夜家進修IOS法式設計有所贊助。
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