好吧，当您加载片段时，您需要在再次发出网络请求之前检查数据是否已经存在。
假设您在“oncreateview”方法上调用网络。类中有一个全局变量。

class YourClass{
var someVariable = 0
...
//here your call network on "onCreateView" method

someVariable = callingNetWork.getValueFromNetWork()

}

一旦从片段生命周期调用CreateView，您就无法控制调用它的次数。所以你需要检查是否已经有了数据。你需要这样的逻辑：

if( someVariable == 0) { //Has not been modiefied yet
someVariable = callingNetWork.getValueFromNetWork()
}
//Don't need an else, if it's not equal to 0, you have already called the networkd and stored the value