更新TextView的Json字符串

Question

我想从数据库中提取一个JSON字符串，然后更新一个textview.My Json字符串，如下所示：

[
    {
        "meaning": "A boy or young man (often as a form of address)",
        "examples": [
            "I read that book when I was a <em>lad</em>",
            "come in, <em>lad</em>, and shut the door"
        ]
    },
    {
        "meaning": "A group of men sharing recreational, working, or other interests",
        "examples": [
            "she wouldn't let him go out with the <em>lads</em> any more"
        ]
    },
    {
        "meaning": "A man who is boisterously macho in his behavior or actions, esp. one who is interested in sexual conquest",
        "examples": [
            "Tony was a bit of a <em>lad</em>âalways had an eye for the women"
        ]
    },
    {
        "meaning": "A stable worker (regardless of age or sex)",
        "examples": []
    }
]

我只想提取“意思”.How我能做到吗？

Answer 1

首先，这是一个JSON数组，里面有许多meaning。

你可以像这样迭代它：

JSONArray jarr = new JSONArray(theJsonString);
for (int i = 0; i < jarr.length(); ++i)
{
    JSONObject jCell = jarr.getJSONObject(i);
    String meaning = cell.getString("meaning");
    // set it as text? concatenate the strings?
}

注意：

为了保持代码清晰，我没有处理异常，请在你的代码中这样做。有关JSON format.

• The的更多信息，

• 阅读以下类是JSON format.

• The的一部分：JSONArray，JSONObject.

• Worth

• ，下一次你将不必再问:)