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Android Build a Weather App (2015) Working with JSON Setting CurrentWeather from JSON

Benjamin McKenzie
Benjamin McKenzie
7,455 Points
Posted by Benjamin McKenzie
Benjamin McKenzie
7,455 Points

Okhttp response.body().string() empty only when logged first?

@Override
            public void onResponse(Call call, Response response) throws IOException {
                try {
                    if (response.isSuccessful()) {
                        //Log.v("Okhttp request", response.body().string());
                        mJSONData = response.body().string();
                        populateWeatherData(getJSONData());
                        setTimeString(formatTime());
                        Log.i("icon", getIcon());
                        Log.i("time", getTimeString());
                    }
                }   catch (IOException e) {
                    e.printStackTrace();
                }   catch (JSONException e) {
                    e.printStackTrace();
                }
            }

The above code works, but if I uncomment the Log.v line, mJSONData is initialized to an empty string, not null just empty. The strange thing is that when I log the json data, it is correct. It's as if calling response.body().string() in the log line makes the string empty after it is called. Does anyone know why this is?

1 Answer

Seth Kroger
Seth Kroger
56,414 Points
Seth Kroger
Seth Kroger
56,414 Points

Apparently it's designed that wayFrom https://square.github.io/okhttp/2.x/okhttp/com/squareup/okhttp/Response.html : "Instances of this class are not immutable: the response body is a one-shot value that may be consumed only once."