我想从预测中获得第一个“低”( - 5)的值,但我得到了空错误。我做了一些研究,但我找不到答案。例子很复杂。
"item": {
"forecast": [
{
"date": "7 Dec 2015",
"day": "Mon",
"high": "1",
"low": "-5",
},
{
"date": "8 Dec 2015",
"day": "Tue",
"high": "-2",
"low": "-6",
},
],
Item.java
private Forecast forecast;
public Forecast getForecast() {
return forecast;
}
forecast=new Forecast();
forecast.paupulate(data.optJSONObject("forecast[0]"));
Forecast.java
private int low;
@Override
public void paupulate(JSONObject data) {
low=data.optInt("low");
}
public int GetLow(){
return low;
}
感谢您的帮助。
答案 0 :(得分:0)
你的Pojo将预测json视为一个对象,但它是一个数组
您需要将您的pojo更改为 -
private Forecast[] forecast;
public Forecast[] getForecast() {
return forecast;
}
然后为了获得第一个低(-5)你做
Forecast[] forecasts = myItem.getForecast();
int requiredValue = forecasts[0].GetLow();