NSThread的基本用法

- (IBAction)btnClick {
// 1.获得当前的线程
NSThread *current = [NSThread currentThread];
NSLog(@"btnClick---%@", current);

//    NSThread *main = [NSThread mainThread];
//    NSLog(@"btnClick---%@", main);

// 2.执行一些耗时操作 : 创建一条子线程
[self threadCreate];
}

- (void)run:(NSString *)param
{
NSThread *current = [NSThread currentThread];

for (int i = 0; i<10000; i++) {
NSLog(@"%@----run---%@", current, param);
}
}

/**
* NSThread的创建方式
* 隐式创建线程, 并且直接(自动)启动
*/
- (void)threadCreate3
{
// 在后台线程中执行 === 在子线程中执行
[self performSelectorInBackground:@selector(run:) withObject:@"abc参数"];
}

/**
* NSThread的创建方式
* 创建完线程直接(自动)启动
*/
- (void)threadCreate2
{
[NSThread detachNewThreadSelector:@selector(run:) toTarget:self withObject:@"我是参数"];
}

/**
* NSThread的创建方式
* 1> 先创建初始化线程
* 2> start开启线程
*/
- (void)threadCreate
{
NSThread *thread = [[NSThread alloc] initWithTarget:self selector:@selector(run:) object:@"哈哈"];
thread.name = @"线程A";
// 开启线程
[thread start];

NSThread *thread2 = [[NSThread alloc] initWithTarget:self selector:@selector(run:) object:@"哈哈"];
thread2.name = @"线程B";
// 开启线程
[thread2 start];
}