How to select any item from AutoCompleteTextView programmatically in Android Studio?-CodePudding

AutoCompleteTextView autoCompleteTextView
ArrayAdapter<String> adapter;
ArrayList<String> list = new ArrayList<>();

@Override
protected void onCreate(Bundle savedInstanceState) {
    // code...
    list.add("First");
    list.add("Second");
    list.add("Third");
    list.add("Forth");
    list.add("Fifth");
    autoCompleteTextView = findViewById(R.id.auto_complete);
    adapter = new ArrayAdapter<>(this, R.layout.drop_down, list);
    autoCompleteTextView.setAdapter(adpater);
}

then, after adding some strings to ArrayList and linking that list with autoCompleteTextView using Adapter.

autoCompleteTextView.setSelection(3);

Now I want any of my item getting selected automatically, once I open this activity. I treid setSelection() method, but it is not working.

CodePudding user response：

We need to pass false as second argument to setText() method.

autoCompleteTextView.setText("First", false);

If we don't pass second arguiment "false" as a filter to setText() method, it will clear all the entries inside list and will keep just one entry. that we set as using setText() method.

CodePudding user response：

your selected value will store selectedItem

@Override
protected void onCreate(Bundle savedInstanceState) {
    // code...
    autoCompleteTextView = findViewById(R.id.auto_complete);
   
    list.add("First");
    list.add("Second");
    list.add("Third");
    list.add("Forth");
    list.add("Fifth");
 adapter = new ArrayAdapter<>(this, R.layout.drop_down, list);
    autoCompleteTextView.setAdapter(adpater);
autoCompleteTextView.setThreshold(1);
  String selectedItem = autoCompleteTextView.getText().toString();
}