Use the function in nsobject to start a thread

The following functions are defined in nsobject. You can refer to the official documentation or Google for their specific meanings.

Sending messages

• – performSelector:withObject:afterDelay:
  
• – performSelector:withObject:afterDelay:inModes:
  
• – performSelectorOnMainThread:withObject:waitUntilDone:
  
• – performSelectorOnMainThread:withObject:waitUntilDone:modes:
  
• – performSelector:onThread:withObject:waitUntilDone:
  
• – performSelector:onThread:withObject:waitUntilDone:modes:
  
• – performSelectorInBackground:withObject:
  
• + cancelPreviousPerformRequestsWithTarget:
  
• + cancelPreviousPerformRequestsWithTarget:selector:object:
  

The following is an example:

-(Ibaction) Start :( ID) sender {
[Self defined mselector: @ selector (dosomething :)];
// [Self dosomething: Nil];
// [Self per
[Self defined mselectorinbackground: @ selector (dosomething :) withobject: Nil];

}

-(Void) dosomething :( ID) inputdata
{
If ([nsthread ismainthread])
{
Nslog (@ "in main thread ");

}
Else {
Nslog (@ "not in main thread ");
}
Nslog (@ "kkkkkk ");
}