等待获得布尔值为true

Question

下面这段代码是一个for循环上的Web服务如何要等到布尔每次循环

检查代码

for (i=0;i<contactsString.length-1;i++){ 
     Phone phone=new Phone(); 
     phone.phone=contactsString[i]; 
     check=false; 
     WebService.getInstance().getApi().checkNumber(phone).enqueue(new Callback<MainResponse>() { 

      @Override 
      public void onResponse(Call<MainResponse> call, Response<MainResponse> response) { 

       availableUsers++; 
       check=true; 
      } 

      @Override 
      public void onFailure(Call<MainResponse> call, Throwable t) { 

      } 
     }); 
     //--- here how to wait untill check is true then continue the loop 

    } 

Answer 1

的评论怎么之前是真实的等待，直到检查真，则继续循环

使用递归函数

将字段初始化为availableUsers=0。要启动循环，请致电checkNumber()

private int availableUsers=0; 

    public void checkNumber() { 
     this.checkNumber(0); 
    } 
    private void checkNumber(final int i){ 
     if(contactsString==null || i>=contactsString.length){ 
      return; 
     } 
     Phone phone=new Phone(); 
     phone.phone=contactsString[i]; 
     WebService.getInstance().getApi().checkNumber(phone).enqueue(new Callback<MainResponse>() { 

      @Override 
      public void onResponse(Call<MainResponse> call, Response<MainResponse> response) { 


       availableUsers++;      
       checkNumber(i+1); 

      } 

      @Override 
      public void onFailure(Call<MainResponse> call, Throwable t) { 
       checkNumber(i+1); 

      } 
     }); 
}