1、导入头文件#import <pthread/pthread.h>
2、代码
//第一个参数 线程编号的地址
//第二个参数 线程的属性
//第三个参数 线程要执行的函数void * (*) (void *)
// int * 指向int类型的指针 void * 指向任何类型的指针 有点类似OC中的id
//第四个参数 要执行的函数的参数
//函数的返回值 int 0是成功 非0 是失败
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
//创建子线程
pthread_t pthread; //线程编号
int result = pthread_create(&pthread, NULL, demo, NULL);
NSLog(@"touchesBegan %@",[NSThread currentThread]);
if (result == 0) {
NSLog(@"成功");
}else {
NSLog(@"失败");
}
}
void *demo(void *param) {
NSLog(@"hello %@",[NSThread currentThread]);
return NULL;
}
------------------------------pthread传递参数------------------------------
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
//创建子线程
pthread_t pthread; //线程编号
NSString *name = @"ls";
// char *name = "zs";
//__bridge 桥接
//MRC中内存管理原则：谁申请，谁释放
//ARC中会自动给OC对象，添加retain release autorelease
//把OC中的对象，传递给c语言的函数，要桥接
int result = pthread_create(&pthread, NULL, demo, (__bridge void *)(name));
NSLog(@"touchesBegan %@",[NSThread currentThread]);
if (result == 0) {
NSLog(@"成功");
}else {
NSLog(@"失败");
}
}
void *demo(void *param) {
NSString *name = (__bridge NSString *)(param);
NSLog(@"hello %@ %@",name,[NSThread currentThread]);
return NULL;
}