lw65112的专栏

1，three20 官方网站http://three20.info/home2。介绍1）Three20系列之Three20概述http://www.yuephone.com/forum.php?mod=viewthread&tid=7&extra=page%3D12）平生不識Three20，便稱iOS App developer也枉然~htt

- (void)viewDidLoad{ [super viewDidLoad]; NSURL* leUrl = [NSURL URLWithString:@"http://bizhi.zhuoku.com/2013/02/19/KTM_350_Freeride/Ktm_350_freeride_06.jpg"]; NSURLRequest* leReq

重写drawrect- (void)drawRect:(CGRect)rect{    if (isWithStrikeThrough)    {        CGSize contentSize = [self.text sizeWithFont:self.font constrainedToSize:self.frame.size];        CGC

1.NSRunLoop是消息机制的处理模式NSRunLoop的作用在于有事情做的时候使的当前NSRunLoop的线程工作，没有事情做让当前NSRunLoop的线程休眠2.nstimer默认添加到当前NSRunLoop中，也可以手动制定添加到自己新建的NSRunLoop的中[NSTimer schduledTimerWithTimeInterval:

http://stackoverflow.com/questions/14593291/xcode-4-6-zxing-compile-error-after-xcode-update-4h127/14616402#14616402

-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{    if (range.location == textField.text.length && [string isEqualToString:@