I'm receiving a JSONObject like this
{"tag":"value1", "tag":"value2", .............}
How do I make it into a String array of
["value1", "value2"]
Create the Arraylist and get the string from the jsonobject and stored it in the arraylist.
Do like this
ArrayList tagarray=new ArrayList();
JSONObject jo=new JSONObject(jsonstring);
for(int i=0;i<jo.length();i++){
tagarray.add(jo.getString("tag"));
}
Try this way
JSONObject obj = new JSONObject("");
Iterator<String> itr = obj.keys();
int i=0;
String[] values = new String[obj.length()];
while(itr.hasNext()){
values[i++] = obj.getString((String)itr.next());
}
If tags are going to be tag1, tag2 and so on...you can use a for loop,
string[i] = jsonObj.getString("tag"+i);
Or you can make a model class with datatype of String or ArrayList tag , eg.
class ModelClass{
ArrayList<String> tag;
//getter setter here
}
And with that use Gson for JSON parsing and mapping the data,
Gson gson = new Gson();
modelClass= gson.fromJson(yourJson,ModelClass.class);
And your work is done. You have each value in the ArrayList tag.
This is more useful for parsing and mapping long and-or complex json strings.
https://code.google.com/p/google-gson/
For Naming discrepancies(according to the variables in webservice), can use annotations like @SerializedName. (So no need to use Serializable)
Use following code.
ArrayList array=new ArrayList();
JSONObject jo=new JSONObject(jsonstring);
for(int i=0;i<jo.length();i++){
array.add(jo.getString("tag"));
}
String[] Arr = new String[array.size()];
Arr = array.toArray(Arr);
Or you have another option.
JSONObject jo=new JSONObject(jsonstring);
String[] array = new String[jo.length()];
for(int i=0;i<jo.length();i++){
array[i] = jo.getString("tag");
}
有一个名为GSON的超酷lib,它非常有助于将所有类型的JSON转换为其对象。
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