[英]Get Data from Json String using List<t> in android
我正在使用List<t>
从Json String获取数据。
我能够获取Question和QId的数据,但Options是json字符串中的json字符串。 因此,我对如何获取这些数据感到困惑。
我的示例代码获取数据:
Test[] placelist = gson.fromJson(result, Test[].class);
List<Test> lList = Arrays.asList(placelist);
Test obj = lList.get(i);
obj.getQuestion();
测试是Java类文件,其中包含获取和设置数据的方法。
我的Json字串:
[
{
"Question": "Are you inclined to",
"QId": "2",
"Options": [
{
"Option": "Argue or debate issues",
"OptionId": "4"
},
{
"Option": "Avoid arguments",
"OptionId": "5"
},
{
"Option": "Swutch topics",
"OptionId": "6"
}
]
},
{
"Question": "Are you more likely to trust",
"QId": "3",
"Options": [
{
"Option": "Yourself",
"OptionId": "7"
},
{
"Option": "Reason",
"OptionId": "8"
},
{
"Option": "Feeling",
"OptionId": "9"
}
]
},
{
"Question": "Would you say that you",
"QId": "4",
"Options": [
{
"Option": "Make decisions easily",
"OptionId": "10"
},
{
"Option": "Find difficulties to make decision",
"OptionId": "11"
},
{
"Option": "Wait for some conclusions",
"OptionId": "12"
}
]
}
]
测试类别:
public class Test{
private String Question;
private String Option;
public Test(String Question, String Option) {
this.Question= Question;
this.Option= Option;
}
public void setQuestion(String Question) {
this.Test= Question;
}
public void setOption(String Option) {
this.Option= Option;
}
public String getQuestion() {
return this.Question;
}
public String getOption() {
return this.Option;
}
}
我不确定使用什么代替setOption()
和getOption()
来获取选项。
请帮助我获得期权的数据。
您的Test类有两个立即显而易见的问题:
您可以使用gson来获取数据。 脚步:
1. Create the test class such that it has question,id as string
and Option as a list of options, and Test is going to be a list of Test
2. Use @SerializedValue in order to map the fields correctly.
3. Refer to :
这是关于如何使用gson的想法
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