How to consume Json on Android?

Question

How do I consume a Json on Android?

Answer 1

Hello,

Use lib Ion(REST) that provides a Jsonobject and you can make POST, GET, PUT and etc requests.

First add dependency to the app

dependencies {
    compile 'com.koushikdutta.ion:ion:2.+'
}

To read and send a json:

JsonObject json = new JsonObject();
json.addProperty("foo", "bar");

    Ion.with(context)
.load("http://example.com/post")
.setJsonObjectBody(json)
.asJsonObject()
.setCallback(new FutureCallback<JsonObject>() {
   @Override
    public void onCompleted(Exception e, JsonObject result) {
        // do stuff with the result or error
    }
});

Using callback, that is to say it will not be blocked until the answer arrives, and your return has to be treated asymptotically.

JsonObject json = new JsonObject();
json.addProperty("foo", "bar");

 JsonObject json = Ion.with(context)
.load("http://example.com/post")
.setJsonObjectBody(json)
.asJsonObject()//aqui voce define o tipo do retorno
.get();

Using the get the method has been blocked until receiving the reply and can be treated synchronously.

To treat the return in a Jsonobject:

json.get("nomeDaKey");

Link for more information from Lib:https://github.com/koush/ion