Multi-thread programming in Ios development-NSThread and iosnsthread

Multi-thread programming in Ios development-NSThread and iosnsthread

The IOS program updates the UI view and responds to the screen touch event through the main thread during running. However, there will be some time-consuming work during view update, in this case, the system gets stuck. This is caused by the blockage of the main thread. This will make the user experience very poor!

To solve this problem, we can use multi-threaded programming to put some time-consuming work in other threads outside of the thread to solve the problem and increase the running efficiency!

Let's talk about how to enable the thread using NSThread;

We can use the NSThread class to enable threads. An NSThread instance object is a thread.

I. NSThread Creation

Object method:

Class method:

Both methods have three parameters:

Selector: method to be executed by the thread
Target: the object of the execution method.
Argument: method parameter. Only one object parameter can be passed.

Ii. Obtain the current thread

NSThread * thread = [NSThread currentThread];

3. Return to the main thread

Iv. Example

NSThread:

5. The result is as follows:

 

Author: Jerry Education
Source: http://www.cnblogs.com/jerehedu/
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