我正在尝试解析包含 JSON 对象数组的字符串,但在 API 19 (Kit-Kat) 操作系统之前不支持 org.json.JSONArray。出于显而易见的原因,我需要想办法解决这个问题。有没有更好的选择?还是我错误地使用了这种方法?
这是不断告诉我我需要 API 19 或更高版本的代码:
protected void onPostExecute(JSONArray result) {
pDialog.dismiss();
try {
// Getting JSON Array from URL
info = new JSONArray(result);
for(int i = 0; i < info.length(); i++){
JSONObject c = info.getJSONObject(i);
// Storing JSON item in a Variable
String title = c.getString(TAG_TITLE);
String article = c.getString(TAG_ARTICLE);
String timestamp = c.getString(TAG_TIMESTAMP);
String datestring = c.getString(TAG_DATESTRING);
// Adding value HashMap key => value
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_TITLE, title);
map.put(TAG_ARTICLE, article);
map.put(TAG_TIMESTAMP, timestamp);
map.put(TAG_DATESTRING, datestring);
oslist.add(map);
list=(ListView)findViewById(R.id.list);
ListAdapter adapter = new SimpleAdapter(MainActivity.this, oslist,
R.layout.list_v,
new String[] { TAG_TITLE,TAG_ARTICLE, TAG_TIMESTAMP,TAG_DATESTRING }, new int[] {
R.id.title,R.id.article, R.id.timestamp,R.id.date_string});
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Toast.makeText(MainActivity.this, "You Clicked at "+oslist.get(+position).get("name"), Toast.LENGTH_SHORT).show();
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
顺便说一句,我正在使用 AsyncTask 将信息放入 ListView。我有另一个类来获取网页的结果。谢谢!