Flask - Android환경에 Java와 연동

클라이언트 측인 Android환경에서는 Volley를 사용한다.

 

Android - Volley 기본 예제

 

서버측 flask에서는

import flask

app = flask.Flask(__name__)

@app.route("/test1")
def rt_test1():
	return flask.jsonify({'tk':'tokentest1'}), 200

app.run(host='0.0.0.0')

 

 

 

Android에서는 volley.Response.Listener을 이용해 응답 왔을 때 처리를 등록 한다.

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Response.Listener<String> rplsn = new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                ((TextView)findViewById(R.id.textview1)).setText(response.toString());
                if(false) try {
                    JSONObject jo = new JSONObject(response);
                    ((TextView)findViewById(R.id.textview2)).setText(jo.getString("tk"));
                } catch (JSONException e) {
                    Toast.makeText(getApplicationContext(), "Err onResponseJson: " + e.toString(), Toast.LENGTH_LONG).show();
                }
            }
        };
        Response.ErrorListener errlsn = new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Toast.makeText(MainActivity.this, "Err ErrorListener: " + error.toString(), Toast.LENGTH_SHORT).show();
            }
        };

        String url = "192.168.0.11";
        StringRequest req = new StringRequest(Request.Method.GET, url, rplsn, errlsn);
        //req.setShouldCache(false);
        RequestQueue rq = Volley.newRequestQueue(MainActivity.this);
        //rq.getCache().clear();
        rq.add(req);
    }