if(transfer == true){
    transfer = false;
}else{
    transfer = true;
}

------解决方案--------------------
探讨

 boolean transfer=true;

 transfer = (transfer == true) ? false : true;


------解决方案--------------------
探讨


引用:
boolean transfer=true;

transfer = (transfer == true) ? false : true;


就是反转状态，true变为false,false变为true
写为transfer = transfer ? false : true;
或采用if..else多好看的...非得采用？：运算...