I have tried soo much to code in many different ways but I was not Successful, this what I have done Please tell me where I've wrong and What I should do.
username = findViewById(R.id.usernamem);
Contacts = findViewById(R.id.loadConduct);
Contacts.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent ContactsIntent = getPackageManager().getLaunchIntentForPackage("Contacts");
try {
startActivity(ContactsIntent);
} catch (NullPointerException ignored) {
}
ContentResolver resolver = getContentResolver();
@SuppressLint("Recycle") Cursor cursor = resolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
assert cursor != null;
while (cursor.moveToNext()) {
String id = getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
String Name = getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));