多线程 线程的状态

//  Created by dyf on 14-6-23.
//  Copyright (c) 2014年 ___FULLUSERNAME___. All rights reserved.
//

#import "DYFViewController.h"

@interface DYFViewController ()
@property ( nonatomic , strong) NSThread * thread ;
@end

@implementation DYFViewController

- ( void )viewDidLoad
{
    [ super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    self . thread = [[ NSThread alloc] initWithTarget: self selector: @selector (test) object:@ "111" ];
    self . thread .name = @ "1111111111" ;
}

- ( void )test {
    //
    NSLog (@ "startedtest------%@" , [[ NSThread currentThread] name]);

//    // 阻塞状态2
//    NSDate *date = [NSDate dateWithTimeIntervalSinceNow:5.0];
//    [NSThread sleepUntilDate:date];

//    // 阻塞状态1
//    [NSThread sleepForTimeInterval:5.0];

    for ( int i = 0; i < 999; i++) {
        NSLog (@ "test-----%d------%@" , i, [[ NSThread currentThread] name]);

        if (i == 50) {
            [ NSThread exit];
        }
    }

    NSLog (@ "endedtest------%@" , [[ NSThread currentThread] name]);

}

#warning 点击2次屏幕会出现 'NSInvalidArgumentException', reason: '*** -[NSThread start]: attempt to start the thread again'，调用已经死的线程会报错
- ( void )touchesBegan:( NSSet *)touches withEvent:(UIEvent *)event
{
    // 开启线程
    [ self . thread start];
}


@end

 小结：线程的状态大概有5种