iOS多线程编程之一——NSThread线程管理

+ (NSThread *)currentThread;

+ (void)detachNewThreadSelector:(SEL)selector toTarget:(id)target withObject:(id)argument;

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- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    [NSThread detachNewThreadSelector:@selector(log) toTarget:self withObject:nil];

    for (int i=0; i<100; i++) {

        NSLog(@"%@=%d",[NSThread currentThread],i);

    }

}

-(void)log{

    for (int i=0; i<100; i++) {

        NSLog(@"%@=%d",[NSThread currentThread],i);

    }

}

+ (BOOL)isMultiThreaded;

@property (readonly, retain) NSMutableDictionary *threadDictionary;

+ (void)sleepUntilDate:(NSDate *)date;

+ (void)sleepForTimeInterval:(NSTimeInterval)ti;

+ (void)exit;

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+ (double)threadPriority;

+ (BOOL)setThreadPriority:(double)p;

@property NSQualityOfService qualityOfService;

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typedef NS_ENUM(NSInteger, NSQualityOfService) {

    //刷新UI级别的线程

    NSQualityOfServiceUserInteractive = 0x21,

    //用户请求的无需精确的任务的线程，例如点击加载邮件

    NSQualityOfServiceUserInitiated = 0x19,

    //周期性的任务线程，例如定时刷新

    NSQualityOfServiceUtility = 0x11,

    //后台任务的线程

    NSQualityOfServiceBackground = 0x09,

    //优先级未知的线程，优先级介于UserInteractive和Utility之间

    NSQualityOfServiceDefault = -1

};

+ (BOOL)isMainThread;

+ (NSThread *)mainThread;

- (instancetype)initWithTarget:(id)target selector:(SEL)selector object:(id)argument;

@property (readonly, getter=isExecuting) BOOL executing;

@property (readonly, getter=isFinished) BOOL finished;

@property (readonly, getter=isCancelled) BOOL cancelled;

- (void)performSelectorOnMainThread:(SEL)aSelector withObject:(id)arg waitUntilDone:(BOOL)wait;

- (void)performSelector:(SEL)aSelector onThread:(NSThread *)thr withObject:(id)arg waitUntilDone:(BOOL)wait;

- (void)performSelectorInBackground:(SEL)aSelector withObject:(id)arg;