一次调用方法 [英] Calling a Method Once

问题描述

当条件达到多次时，我遇到了如何调用一次方法的问题！例如:

I am having a problem of how to call a method once when the condition achieves many times! for example:

public void onLocaitonChanged(Location location){

  // this if statement may achieve the condition many times
  if(somethingHappened){

       callAMethodOnce();// this method is called once even if the condition achieved again
  }

}

请帮助

推荐答案

public void onLocaitonChanged(Location location){

  // this if statement may achieve the condition many times
  if(somethingHappened){

       if (!isAlreadyCalled){   
           callAMethodOnce();// this method is called once even if the condition achieved again
           isAlreadyCalled = true;
       }
  }

}

这篇关于一次调用方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！