Add contact suggesion in compose mail in andriod studio
To add a contact suggestion feature in the compose mail functionality in Android Studio, you'll need to implement the AutocompleteTextView
widget and use the ContactsContract
API to retrieve contact suggestions. Here's a step-by-step guide to help you achieve this:
Step 1: Add the AutocompleteTextView
widget
In your activity_main.xml
file, add the AutocompleteTextView
widget:
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/recipient_edittext"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:hint="Recipient">
<com.google.android.material.textfield.AutocompleteTextView
android:id="@+id/recipient_autocomplete"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:completionThreshold="1" />
</com.google.android.material.textfield.TextInputLayout>
Step 2: Create a custom adapter for contact suggestions
Create a new Java class, e.g., ContactSuggestionAdapter.java
, that extends ArrayAdapter<Contact>
. This adapter will be responsible for populating the AutocompleteTextView
with contact suggestions:
public class ContactSuggestionAdapter extends ArrayAdapter<Contact> {
private Context context;
private List<Contact> contacts;
public ContactSuggestionAdapter(Context context, int resource, List<Contact> contacts) {
super(context, resource, contacts);
this.context = context;
this.contacts = contacts;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
view = LayoutInflater.from(context).inflate(R.layout.contact_suggestion_item, parent, false);
}
Contact contact = getItem(position);
TextView nameTextView = view.findViewById(R.id.name_textview);
nameTextView.setText(contact.getName());
return view;
}
}
Step 3: Retrieve contact suggestions using the ContactsContract
API
Create a new Java class, e.g., ContactSuggestionProvider.java
, that will retrieve contact suggestions using the ContactsContract
API:
public class ContactSuggestionProvider {
private Context context;
public ContactSuggestionProvider(Context context) {
this.context = context;
}
public List<Contact> getContactSuggestions(String query) {
List<Contact> contacts = new ArrayList<>();
// Retrieve contacts from the ContactsContract
Cursor cursor = context.getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
if (cursor!= null && cursor.moveToFirst()) {
do {
String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
// Filter contacts based on the query
if (name.toLowerCase().contains(query.toLowerCase())) {
Contact contact = new Contact(contactId, name);
contacts.add(contact);
}
} while (cursor.moveToNext());
}
cursor.close();
return contacts;
}
}
Step 4: Set up the AutocompleteTextView
with the custom adapter and contact suggestion provider
In your MainActivity.java
file, set up the AutocompleteTextView
with the custom adapter and contact suggestion provider:
public class MainActivity extends AppCompatActivity {
private AutocompleteTextView recipientAutocomplete;
private ContactSuggestionAdapter contactSuggestionAdapter;
private ContactSuggestionProvider contactSuggestionProvider;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recipientAutocomplete = findViewById(R.id.recipient_autocomplete);
contactSuggestionAdapter = new ContactSuggestionAdapter(this, R.layout.contact_suggestion_item, new ArrayList<Contact>());
recipientAutocomplete.setAdapter(contactSuggestionAdapter);
contactSuggestionProvider = new ContactSuggestionProvider(this);
recipientAutocomplete.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {}
@Override
public void afterTextChanged(Editable s) {
String query = s.toString();
List<Contact> contacts = contactSuggestionProvider.getContactSuggestions(query);
contactSuggestionAdapter.clear();
contactSuggestionAdapter.addAll(contacts);
contactSuggestionAdapter.notifyDataSetChanged();
}
});
}
}
Step 5: Define the Contact
class
Create a new Java class, e.g., Contact.java
, that represents a contact:
public class Contact {
private String id;
private String name;
public Contact(String id, String name) {
this.id = id;
this.name = name;
}
public String getId() {
return id;
}
public String getName() {
return name;
}
}
That's it! With these steps, you should now have a AutocompleteTextView
that suggests contacts as you type in the recipient's email address.