Interface Callback

demo/src/main/java/com/example/puree/FakeApiClient.java:12–17

    private static final String TAG = FakeApiClient.class.getSimpleName();

    public interface Callback {

        void success();

        void fail();
    }

    public void sendLog(final List<String> jsonLogs, final Callback callback) {
        new Thread(new Runnable() {