Retrieve data from server and send it to next activity

Question

I retrieve the data from server using php, I want send it to next activity

I already retrieve the id and name, How can I store it and send to next activity

This is my list view


private void loadIntoListView(String json) throws JSONException {
        JSONArray jsonArray = new JSONArray(json);
        String[] viewstudent= new String[jsonArray.length()];
        for (int i = 0; i < jsonArray.length(); i++) {
            JSONObject obj = jsonArray.getJSONObject(i);
            viewstudent[i] = obj.getString("id") + " " + obj.getString("name");

           //is here store it for send to next activity?

        }
        ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, viewstudent);
        lv.setAdapter(arrayAdapter);

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {


               //I think here maybe send data to next activity
                
            }


        });

Have any simple way? Can give me some example?

Use `intent.putExtra`. This should help: https://stackoverflow.com/questions/14876273/simple-example-for-intent-and-bundle — Will, Aug 22 '20 at 18:00

score 0 · Answer 1 · answered Aug 22 '20 at 16:14

0

You can parse data json by use Gson and create Java class from jsonschema2pojo.org.

To send data to next activiy, you can use Bundle.

answered Aug 22 '20 at 16:14

namanh11611

57
7

Khamidjon Khamidov · Accepted Answer · 2020-08-23T23:15:20.823

You should use SharedPreferences to save simple data types like

String, Integer, Boolean, Long, Short, ...

To send data to another activity you use bundle.

Shared Preferences To Store Data

To get shared preferences:

SharedPreferences prefs = this.getSharedPreferences("com.example.app", Context.MODE_PRIVATE);

Store data to Shared Preferences:

prefs.edit().putLong("Id_KEY", myUserId).apply();

To read data from Shared Preferences

int userId = prefs.getInt("Id_KEY", -1);

Bundles to send data to another activity

Send data to SecondActivity from FirstActivity

Intent intent = new Intent(getApplicationContext(), SecondActivity.class);
        intent.putExtra("ACTIVITY_ID_KEY", myUserId);
        startActivity(intent
    );

Receive Data from FirstActivity:

overide void onCreate(...) {
   ...
   Intent intent = getIntent();
   String userId = intent.getStringExtra("ACTIVITY_ID_KEY", -1);
   ...
}

the 1 and 2 is write in my loadIntoListView? – 564851353 Aug 23 '20 at 07:42 — 564851353, Aug 23 '20 at 07:42
the 3 is write in lv.setOnItemClickListener? – 564851353 Aug 23 '20 at 07:46 — 564851353, Aug 23 '20 at 07:46

Retrieve data from server and send it to next activity

2 Answers2