Android - 将字符串转换为列表以推送到 Firebase 实时数据库

Question

Is there any way to convert the string below to a list? This string is retrieved after scanning a QR code.

CashRequest{
    orderid='0',
    user_id='nvHt2U5RnqUwXB4ZK37Zn1DXPV82',
    userName='username',
    userEmail='whateveremailthisis@email.blabla',
    fullName='full name',
    phoneNumber=0,
    totalCash='$304.00',
    totalRV='$34.00', 

    foods=[
        Order{
            userID='nvHt2U5RnqUwXB4ZK37Zn1DXPV82',
            ProductID='-LMDiT7klgoXU8bQEM-4',
            ProductName='Coke',
            Quantity='4',
            Price='1',
            RedemptionPrice='10',
            RedemptionValue='1'},
        Order{
            userID='nvHt2U5RnqUwXB4ZK37Zn1DXPV82',
            ProductID='1000',
            ProductName='Kunau Ring Ring Pradu',
            Quantity='3',
            Price='100',
            RedemptionPrice='10',
            RedemptionValue='10'
        }
    ]
}

The desired output is to store it in firebase realtime database as below :

Answer 1

Well you have a few options. Since it is newline between values, you could use simple newline reads and compare if it starts with "reserved word that you are looking for" then substring from there, but that can get messy and a lot of bloat code.

The simplest way would be to do the known replace first. Make a method that replaces all bad json keys with quote surrounded json keys like:

 val myJsonCorrected = yourStringAbove.replace("Order", "\"Order"\")

repeat for all known entities until you have made it into valid json. Single ticks are fine for the values, but the keys need quotes as well.

Then simply create an object that matches the json format.

class CashRequestModel{
      @SerializableName("orderid")
      var orderID: Int? = null
      etc.....
      @SerializableName("foods")
      var myFoods: ArrayList<OrderModel>? = null
}

class OrderMode {
     @SerializableName("userID")
     var userID: String? = null
     @SerializableName("ProductID")
     var userID: String? = null
     etc..
}

Then simply convert it to JSON

val cashRequest = getGson().fromJson(cleanedUpJson, classTypeForCashRequest);

and your done. Now just use the list. Of course it would be better if you could get valid JSON without having to clean it up first, but it looks like the keys are known and you can easily code string replaces to fix the bad json before casting it to object that matches the structure.

Hope that helps.