globalQueue, ^(size_t index) { NSLog(@"执行第%zd次的任务,%@",index,[NSThread currentThread]); [NSThread sleepForTimeInterval...:3]; NSLog(@"栅栏前的任务"); }); dispatch_async(queue, ^{ [NSThread sleepForTimeInterval:1]; NSLog...(@"栅栏前的任务"); }); //栅栏 dispatch_barrier_async(queue, ^{ // 等待处理 [NSThread sleepForTimeInterval...:2]; NSLog(@"-栅栏等待-"); }); dispatch_async(queue, ^{ [NSThread sleepForTimeInterval:2]; NSLog...(@"栅栏后的任务"); }); dispatch_async(queue, ^{ [NSThread sleepForTimeInterval:2]; NSLog(@"栅栏后的任务")
dispatch_apply(3, queueSerial, ^(size_t t) {// 参数^(size_t),需要自己加一个^(size_t t),否则有问题 // [NSThread sleepForTimeInterval...dispatch_apply(3, queueConcu, ^(size_t t) {// 参数^(size_t),需要自己加一个^(size_t t),否则有问题 // [NSThread sleepForTimeInterval...的序号 // dispatch_apply(3, queueSerial, ^(size_t t) { // [NSThread sleepForTimeInterval:1];...= dispatch_group_create(); // // dispatch_group_async(group, queueConcu, ^{ // [NSThread sleepForTimeInterval...NSLog(@"11111"); // }); // // dispatch_barrier_async(queueConcu, ^{ // [NSThread sleepForTimeInterval
[NSOperationQueue alloc] init]; 142 143 [lQ addOperationWithBlock:^{ 144 [NSThread sleepForTimeInterval...149 NSBlockOperation *lOp1 = [NSBlockOperation blockOperationWithBlock:^{ 150 [NSThread sleepForTimeInterval...155 NSBlockOperation *lOp2 = [NSBlockOperation blockOperationWithBlock:^{ 156 [NSThread sleepForTimeInterval...161 NSBlockOperation *lOp3 = [NSBlockOperation blockOperationWithBlock:^{ 162 [NSThread sleepForTimeInterval...167 NSBlockOperation *lOp4 = [NSBlockOperation blockOperationWithBlock:^{ 168 [NSThread sleepForTimeInterval
[op start]; } /** * 任务1 */ - (void)task1 { for (int i = 0; i < 2; i++) { [NSThread sleepForTimeInterval...2.添加额外的操作 [op addExecutionBlock:^{ for (int i = 0; i < 2; i++) { [NSThread sleepForTimeInterval...self.isCancelled) { for (int i = 0; i < 2; i++) { [NSThread sleepForTimeInterval:...} }]; [op3 addExecutionBlock:^{ for (int i = 0; i < 2; i++) { [NSThread sleepForTimeInterval...}]; [queue addOperationWithBlock:^{ for (int i = 0; i < 2; i++) { [NSThread sleepForTimeInterval
dispatch_sync(queue, ^{ // 追加任务1 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...dispatch_sync(queue, ^{ // 追加任务2 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...dispatch_sync(queue, ^{ // 追加任务3 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...dispatch_async(queue, ^{ // 追加任务1 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval:2]; // 模拟耗时操作
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ /* 耗时任务1 */ NSLog(@"任务1开始"); [NSThread sleepForTimeInterval...dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER); /* 如果获得信号量则开始任务2 */ NSLog(@"任务2开始"); [NSThread sleepForTimeInterval...:3]; NSLog(@"任务2结束"); }); [NSThread sleepForTimeInterval:10];
queue.maxConcurrentOperationCount = 2; [queue addOperationWithBlock:^{ [NSThread sleepForTimeInterval...(@"-1--%@",[NSThread currentThread]); }]; [queue addOperationWithBlock:^{ [NSThread sleepForTimeInterval...(@"-2--%@",[NSThread currentThread]); }]; [queue addOperationWithBlock:^{ [NSThread sleepForTimeInterval...(@"-3--%@",[NSThread currentThread]); }]; [queue addOperationWithBlock:^{ [NSThread sleepForTimeInterval...self.queue addOperationWithBlock:^{ NSLog(@"-1--%@",[NSThread currentThread]); [NSThread sleepForTimeInterval
"]; [[NSUserDefaults standardUserDefaults] synchronize]; //使启动界面停留 2.0 秒 [NSThread sleepForTimeInterval...userGuideViewController;//设置启动根视图 [userGuideViewController release]; } else { [NSThread sleepForTimeInterval
dispatch_async(firstQueue, ^{ NSLog(@"task 1 in ---- %@",[NSThread currentThread]); [NSThread sleepForTimeInterval...dispatch_async(secondQueue, ^{ NSLog(@"task 2 in ---- %@",[NSThread currentThread]); [NSThread sleepForTimeInterval...dispatch_async(secondQueue, ^{ NSLog(@"task 3 in ---- %@",[NSThread currentThread]); [NSThread sleepForTimeInterval
dispatch_sync(queue, ^{ // 追加任务1 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...dispatch_sync(queue, ^{ // 追加任务2 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...dispatch_sync(queue, ^{ // 追加任务3 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...dispatch_sync(queue, ^{ // 追加任务1 for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval...for (int i = 0; i < 2; ++i) { [NSThread sleepForTimeInterval:2]; // 模拟耗时操作
:3.f]; }); dispatch_async(secondQueue, ^{ NSLog(@"2"); [NSThread sleepForTimeInterval:2.f]; }...); dispatch_async(secondQueue, ^{ NSLog(@"3"); [NSThread sleepForTimeInterval:1.f]; }); 队列类型...barrier后面的 dispatch_barrier_async(dataQueue, ^{ NSLog(@"write data 1"); [NSThread sleepForTimeInterval...:1]; }); dispatch_async(dataQueue, ^{ [NSThread sleepForTimeInterval:1.f]; NSLog...dispatch_block_t block = dispatch_block_create(0, ^{ NSLog(@"star"); [NSThread sleepForTimeInterval
arc4random() % 100; float sleep = value / 100.00; [NSThread sleepForTimeInterval...int value = arc4random() % 100; float sleep = value / 100.00; [NSThread sleepForTimeInterval
dispatch_group_enter(group); dispatch_group_async(group, queue, ^{ // 执行异步任务1 [NSThread sleepForTimeInterval...进入组 dispatch_group_enter(group); dispatch_group_async(group, queue, ^{ // 执行异步任务2 [NSThread sleepForTimeInterval
d.线程%@",count,[NSThread currentThread]]; NSLog(@"%@",str); 8 NSData *data; 9 [NSThread sleepForTimeInterval...1 _count ++; 2 int count = _count; 在两条语句中间加一个延迟,如下: _count ++; [NSThread sleepForTimeInterval...下面我们加上同步锁 (1)用NSLock加同步锁,代码如下: 1 //通过NSLock加锁 2 [_lock lock]; 3 _count ++; 4 [NSThread sleepForTimeInterval...synchronized加锁 2 int count; 3 @synchronized(self){ 4 _count ++; 5 [NSThread sleepForTimeInterval
for (int i = 0; i < 5; i++) { dispatch_group_async(group, queue, ^{ [NSThread sleepForTimeInterval...int i = 0; i < 5; i++) { dispatch_group_async(group, queue, ^{ [NSThread sleepForTimeInterval...dispatch_async(queue, ^{ dispatch_apply(5, queue, ^(size_t index) { [NSThread sleepForTimeInterval...dispatch_async(queue, ^{ dispatch_apply(5, queue, ^(size_t index) { [NSThread sleepForTimeInterval...dispatch_async(queue, ^{ NSLog(@"网络线程---%@",[NSThread currentThread]); [NSThread sleepForTimeInterval
2.5 GCD线程间通信 // 异步 dispatch_async(dispatch_get_global_queue(0, 0), ^{ // 耗时操作放在这里 [NSThread sleepForTimeInterval...dispatch_group_create(); dispatch_group_async(group, queue, ^{ NSLog(@"下载1开始"); [NSThread sleepForTimeInterval...1结束"); }); dispatch_group_async(group, queue, ^{ NSLog(@"下载2开始"); [NSThread sleepForTimeInterval
launchOptions { //--insert a delay of 5 seconds before the splash screen disappears-- [NSThread sleepForTimeInterval
NSBlockOperation blockOperationWithBlock:^{ NSLog(@"下载图片 - %@", [NSThread currentThread]); [NSThread sleepForTimeInterval...NSBlockOperation blockOperationWithBlock:^{ NSLog(@"打水印 - %@", [NSThread currentThread]); [NSThread sleepForTimeInterval...NSBlockOperation blockOperationWithBlock:^{ NSLog(@"上传图片 - %@", [NSThread currentThread]); [NSThread sleepForTimeInterval
3. sleep方式 [NSThread sleepForTimeInterval:1.0f]; [self delayMethod]; 此方式在主线程和子线程中均可执行。
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