#import "HMViewController.h"
@interface HMViewController ()
@end
@implementation HMViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[self operationQueue2];
}
- (void)operationQueue2
{
NSBlockOperation *operation1 = [NSBlockOperation blockOperationWithBlock:^{
NSLog(@"NSBlockOperation------下载图片1---%@", [NSThread currentThread]);
}];
NSBlockOperation *operation2 = [NSBlockOperation blockOperationWithBlock:^{
NSLog(@"NSBlockOperation------下载图片2---%@", [NSThread currentThread]);
}];
[operation2 addExecutionBlock:^{
NSLog(@"NSBlockOperation------下载图片22---%@", [NSThread currentThread]);
}];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
queue.maxConcurrentOperationCount = ;
[queue addOperation:operation1];
[queue addOperation:operation2];
[queue addOperationWithBlock:^{
NSLog(@"NSBlockOperation------下载图片3---%@", [NSThread currentThread]);
}];
}
- (void)opeationListen
{
NSBlockOperation *operation = [NSBlockOperation blockOperationWithBlock:^{
for (int i = ; i<; i++) {
NSLog(@"NSBlockOperation------下载图片---%@", [NSThread currentThread]);
}
}];
operation.completionBlock = ^{
// ...下载完图片后想做事情
NSLog(@"NSBlockOperation------下载图片完毕---%@", [NSThread currentThread]);
};
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[queue addOperation:operation];
}
- (void)operationQueue
{
// 1.封装操作
NSInvocationOperation *operation1 = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(download) object:nil];
// operation1.queuePriority = NSOperationQueuePriorityHigh
NSInvocationOperation *operation2 = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(run) object:nil];
NSBlockOperation *operation3 = [NSBlockOperation blockOperationWithBlock:^{
for (int i = ; i < ; i++) {
NSLog(@"NSBlockOperation------下载图片---%@", [NSThread currentThread]);
[NSThread sleepForTimeInterval:0.1];
}
}];
// [operation3 addExecutionBlock:^{
// for (int i = 0; i<10; i++) {
// NSLog(@"NSBlockOperation------下载图片2---%@", [NSThread currentThread]);
// [NSThread sleepForTimeInterval:0.1];
// }
// }];
// 2.创建队列
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
queue.maxConcurrentOperationCount = ; // 2 ~ 3为宜
// 设置依赖
[operation2 addDependency:operation3];
[operation3 addDependency:operation1];
// 3.添加操作到队列中(自动执行操作, 自动开启线程)
[queue addOperation:operation1];
[queue addOperation:operation2];
[queue addOperation:operation3];
// [queue setSuspended:YES];
}
- (void)blockOperation
{
// 1.封装操作
// NSBlockOperation *operation = [NSBlockOperation blockOperationWithBlock:^{
// NSLog(@"NSBlockOperation------下载图片1---%@", [NSThread currentThread]);
// }];
NSBlockOperation *operation = [[NSBlockOperation alloc] init];
[operation addExecutionBlock:^{
NSLog(@"NSBlockOperation------下载图片1---%@", [NSThread currentThread]);
}];
[operation addExecutionBlock:^{
NSLog(@"NSBlockOperation------下载图片2---%@", [NSThread currentThread]);
}];
[operation addExecutionBlock:^{
NSLog(@"NSBlockOperation------下载图片3---%@", [NSThread currentThread]);
}];
// 2.执行操作
[operation start];
}
- (void)invocationOperation
{
// 1.创建操作对象, 封装要执行的任务
NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(download) object:nil];
// 2.执行操作(默认情况下, 如果操作没有放到队列queue中, 都是同步执行)
[operation start];
}
- (void)download
{
for (int i = ; i<; i++) {
NSLog(@"------download---%@", [NSThread currentThread]);
[NSThread sleepForTimeInterval:0.1];
}
}
- (void)run
{
for (int i = ; i<; i++) {
NSLog(@"------run---%@", [NSThread currentThread]);
[NSThread sleepForTimeInterval:0.1];
}
}
@end