How to display HashMap key value when clicked by autocom user
I am new to development android
and Java
. In my code (shown below), when the user clicks
search
button
, value
for is key
displayed in displayField TextView
. But I want to value
be displayed when the user clicks (touches) an item in the dropdown items AutoCompleteTextView
without requiring click
search
button
.
import java.util.HashMap;
import java.util.Map;
import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends ActionBarActivity
{
Map<String, String> map = new HashMap<String, String>();
private EditText autocomplete_searchField;
private TextView displayField;
String note;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
autocomplete_searchField = (AutoCompleteTextView) findViewById(R.id.autocomplete_searchField);
// Get a reference to the AutoCompleteTextView in the layout
AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.autocomplete_searchField);
// Gets the string array
String[] music_note = getResources().getStringArray(R.array.music_notes_array);
// Creates the adapter and set it to the AutoCompleteTextView
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, musicNote);
textView.setAdapter(adapter);
displayField = (TextView) findViewById(R.id.displayField);
Button button = (Button)findViewById(R.id.button); // I want to completely remove this button eventually
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String note = autocomplete_searchField.getText().toString();
displayField.setText(map.get(note));
map.put("Doe", "a deer, a female deer");
map.put("Ray", "a drop of golden sun");
}
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I didn't understand why you need autocomplete_searchField
in your code, anyway, if I understood well, you just need to remove button.setOnClickListener
and add the following code:
textView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
displayField.setText(map.get(adapterView.getItemAtPosition(position).toString()));
}
});
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You need to set ItemClickedListener to AutoCompleteTextView.
textView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View arg1, int position, long arg3) {
String note = autocomplete_searchField.getText().toString();
displayField.setText(map.get(note));
}
});
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