iphone-common-codes-ccteam源代码 CCAutoDisappearView.m

最新推荐文章于 2012-01-12 09:54:35 发布

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最新推荐文章于 2012-01-12 09:54:35 发布

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/ccteam/archive/2011/12/30/2307126.html

本文介绍了一个名为CCAutoDisappearView的视图实现，该视图可在指定时间后自动消失。文章详细展示了如何设置文本、显示视图及实现自动消失功能。

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//  
//  CCAutoDisappearView.m  
//  CCFC  
//  
//  Created by xichen on 11-12-16.  
//  Copyright 2011 ccteam. All rights reserved.  
//
  
#import "CCAutoDisappearView.h"  


@implementation CCAutoDisappearView  

@synthesize tm = _tm;  
@synthesize superView = _superView;  
@synthesize msgLbl = _msgLbl;  
@synthesize bgColor = _bgColor;  

- (id)initWithFrame:(CGRect)frame   
{  
    self = [super initWithFrame:frame];  
if (self)   
    {  
        _tm = 3.0f;  
    }  
return self;  
}  

- (void)dealloc   
{  
    [_msgLbl release];  
    [_bgColor release];  
    [super dealloc];  
}  


- (void)setText:(NSString *)str  
{  
    self.msgLbl = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];  
    _msgLbl.textColor = [UIColor whiteColor];  
if(_bgColor == nil)  
        _msgLbl.backgroundColor = [UIColor colorWithRed:(124.0/255) green:(156.0/255) blue:(89.0/255) alpha:0.7];  
else  
        _msgLbl.backgroundColor = _bgColor;  

    _msgLbl.textAlignment = UITextAlignmentCenter;  
    _msgLbl.text = str;  
    [_msgLbl release];  
}  

- (void)show  
{  
    [self addSubview:_msgLbl];  
    [_superView addSubview:self];  
    self.hidden = FALSE;  
if(_tm > 0)  
    {  
        [NSTimer scheduledTimerWithTimeInterval:_tm  
                                     target:self  
                                   selector:@selector(onDisappear)  
                                   userInfo:nil   
                                        repeats:NO];  
    }  
}  


- (void)onDisappear  
{  
    self.hidden = TRUE;  
    [self removeFromSuperview];  
}  

- (void)drawRect:(CGRect)rect   
{  
    [_msgLbl setNeedsDisplay];  
    [super drawRect:rect];  
}  


@end