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 <uikit/uikit.h>


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。