ios 自定义消息提示框

2018-02-26 08:18:30来源:cnblogs.com作者:东方🐺人点击

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自定义提示框,3秒钟后自动消失。如上图显示效果。

提示框加载代码:

- (void)viewDidLoad {    [super viewDidLoad];        //将view背景颜色变更为黄色    self.view.backgroundColor = [UIColor yellowColor];        //在self.view上加载提示框    [[BIDNoteView sharedInstance] showNoteView:@"显示提示信息" subView:self.view];}

BIDNoteView.h 代码:

////  BIDNoteView.h//  label上画横线////  Created by eJiupi on 14-7-23.//  Copyright (c) 2014年 xujinzhong. All rights reserved.//#import <Foundation/Foundation.h>@interface BIDNoteView : NSObject+ (BIDNoteView*)sharedInstance;- (void)showNoteView:(NSString*)noteText subView:(UIView*)subView;-(void)setFont:(UIFont*)font;@end

BIDNoteView.m 实现代码:

////  BIDNoteView.m//  label上画横线////  Created by eJiupi on 14-7-23.//  Copyright (c) 2014年 xujinzhong. All rights reserved.//#import "BIDNoteView.h"@interface BIDNoteView ()//@property (strong, nonatomic) UIView *subView;@property (strong, nonatomic) UIView *noteView;@property (strong, nonatomic) UILabel *noteLable;@property (strong, nonatomic) NSTimer *timer;@end@implementation BIDNoteView+ (BIDNoteView*)sharedInstance{    static BIDNoteView* instance = nil;    if (instance == nil)    {        instance = [[BIDNoteView alloc] init];    }    return instance;}- (id)init{    self = [super init];    if (self)    {        NSInteger w = 220;        NSInteger h = 50;        NSInteger x = ([UIScreen mainScreen].bounds.size.width-w)/2;        NSInteger y = [UIScreen mainScreen].bounds.size.height-60-h;               self.noteView = [[UIView alloc] initWithFrame:CGRectMake(x, y, w, h)];        self.noteView.layer.cornerRadius = 5.0;        self.noteView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.6];                self.noteLable = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, w, h)];        self.noteLable.text = @"亲,没有更多商品信息了哦";        self.noteLable.numberOfLines=2;        self.noteLable.textColor = [UIColor whiteColor];        self.noteLable.textAlignment = NSTextAlignmentCenter;        self.noteLable.backgroundColor = [UIColor clearColor];        [self.noteView addSubview:self.noteLable];    }    return self;}-(void)setFont:(UIFont*)font{    self.noteLable.font=font;}- (void)showNoteView:(NSString*)noteText subView:(UIView*)subView{    if (self.timer != nil && [self.timer isValid]) {        [self.timer invalidate];        self.timer = nil;    }        if (noteText != nil && [noteText length] > 0)        self.noteLable.text = noteText;        [subView addSubview:self.noteView];    [subView layoutIfNeeded];    self.timer = [NSTimer scheduledTimerWithTimeInterval:1.5 target:self selector:@selector(timerFired:) userInfo:nil repeats:NO];}- (void)timerFired:(NSTimer*)timer{    [self.timer invalidate];    //[self setFont:[BIDDeviceFont font_15]];    [self setFont:[UIFont fontWithName:@"Helvetica" size:15]];    self.timer = nil;    [self.noteView removeFromSuperview];}@end

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