How do I pass listView data to another activity?

Question

I have a listView in Activity A, where all the data are retrieved from SQLite. Now I want to pass the data to another new activity when list is clicked. How can I achieve this ?

Activity A

There are two list in Activity A, assume first list is clicked, I want it pass data to B.

  listViewUpdate.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> listView, View view,
                                    int position, long id) {
                // Get the cursor, positioned to the corresponding listview_item_row in the result set

                Intent intent=new Intent(getActivity(),B.class);
                startActivity(intent);


            }
        });

Some part of my Activity B

public class Edit_Details extends AppCompatActivity {

    EditText Description,TimeIn,TimeOut;
    String description;
    SeekBar seekBar;
    TextView progressText;
    int progress=0;
    SQLiteDatabase database;
    MyDatabaseHelper dbHelper;
    Cursor cursor;
    private com.example.project.myapplication.API.WorkDetailsAPI WD;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.edit_details);
        Project=(Spinner)findViewById(R.id.SpinnerProject);
        final String ID=getIntent().getStringExtra("ID"); // should be position?
        WD = new com.example.project.myapplication.API.WorkDetailsAPI(getApplication());
        Description=(EditText)findViewById(R.id.editTextWorkDescription);
        TimeIn=(EditText)findViewById(R.id.TimeIn);
        TimeOut=(EditText)findViewById(R.id.TimeOut);
        seekBar=(SeekBar)findViewById(R.id.seekBarPercentage);
        progressText=(TextView)findViewById(R.id.textProgress);
        progressText.setText("Covered:" + "" + seekBar.getProgress() + "/" + seekBar.getMax());
        Log.e("ID", ID);
        RetrieveDetails(ID); // how to get the position ?

    }

    public void RetrieveDetails(long ID)
    {
        final long id=ID;
        database=dbHelper.getWritableDatabase();
        cursor=database.rawQuery("SELECT SubContractors, NumberOfPerson, NumberOfHours FROM " + MyDatabaseHelper.TABLE_WORKFORCE+ " WHERE _id= ? ",
                new String[]{String.valueOf(id)}, null);

        Details d=new Details();
        if(cursor!=null) {
            while (cursor.moveToNext())
            {
                description=cursor.getString(cursor.getColumnIndexOrThrow(MyDatabaseHelper.WorkDescription));
                d.setWorkDescription(description); 
                Description.setText(description);  // display learn java on editText

            }
        }
    }
}

I need to know how to get the new activity to remember the list item that was clicked and then pull all the info from A and display in new activity. if that makes sense.. thanks!

Eg. Remember lean java and display on B

in another words see `AdapterView.OnItemClickListener` documentation, especially `id` parameter of `onItemClick` — pskink, Dec 06 '15 at 18:17
I need to know how to get the new activity to remember the list item that was clicked and then pull all the info from A and display in new activity. if that makes sense.. thanks! — Tony, Dec 06 '15 at 18:23
if you want to update or delete your table's row (or retrieve much data) you should pass an `id` — pskink, Dec 06 '15 at 18:29

score 4 · Accepted Answer · edited May 23 '17 at 11:46

4

In Activity A, add data to intent like this

Intent intent = new Intent(A.this, B.class);
intent.putextra("keyName","value");
startActivity(intent);

In Activity B, retrieve data like this

String data = getIntent().getExtras().getString("keyName");

You can add multiple key-value pairs.

EDIT:

If you have an Object say Data which holds values of description, progress,..., you could get it using below code inside onItemClick() of listViewUpdate.setOnItemClickListener(...).

Data data = (Data) listView.getAdapter().getItem(position);

and pass the whole object in the intent.

If you are not familiar as to how we can pass an object in intent, this SO post might help you.

edited May 23 '17 at 11:46

Community

1
1

answered Dec 06 '15 at 18:15

Suhas

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I need to know how to get the new activity to remember the list item that was clicked and then pull all the info from A and display in new activity. if that makes sense.. thanks! – Tony Dec 06 '15 at 18:23
Thanks a lot..I will have a look – Tony Dec 06 '15 at 18:34

How do I pass listView data to another activity?

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