1.With this method I can transfer a Vcard to the contacts, but this method is out of date and I can't find a way to add VCard / website to Contact / website. How to write the current method to add a Vcard to the contacts?
public void SaveContacts(
string name, string number, string email, string
company, string jobtitle, string postal, string website)
{
var activity = Forms.Context as Activity;
var intent = new Intent(Intent.ActionInsert);
intent.SetType(ContactsContract.Contacts.ContentType);
intent.PutExtra(ContactsContract.Intents.Insert.Name, name);
intent.PutExtra(ContactsContract.Intents.Insert.Phone, number);
intent.PutExtra(ContactsContract.Intents.Insert.Email, email);
intent.PutExtra(ContactsContract.Intents.Insert.Company, company);
intent.PutExtra(ContactsContract.Intents.Insert.JobTitle, jobtitle);
intent.PutExtra(ContactsContract.Intents.Insert.Postal, postal);
intent.PutExtra(ContactsContract.Intents.Insert.Notes, website);
activity.StartActivity(intent);
Toast.MakeText(activity, "ContactSaved", ToastLength.Short).Show();
}
You can refer to the following code,and it could add a contact with multiple phone numbers in android. It works on my side.
public class MainActivity : AppCompatActivity
{
public string TAG
{
get
{
return "MainActivity";
}
}
static readonly int REQUEST_CONTACTS = 1;
static string[] PERMISSIONS_CONTACT = {
Manifest.Permission.ReadContacts,
Manifest.Permission.WriteContacts
};
Button button;
View layout;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.activity_main);
layout = FindViewById(Resource.Id.root_layout);
}
public void NewContact(ref List<ContentProviderOperation> ops, string displayName, string Number1, string Number2, string Number3, string Number4)
{
ContentProviderOperation.Builder builder =
ContentProviderOperation.NewInsert(ContactsContract.RawContacts.ContentUri);
builder.WithValue(ContactsContract.RawContacts.InterfaceConsts.AccountType, null);
builder.WithValue(ContactsContract.RawContacts.InterfaceConsts.AccountName, null);
ops.Add(builder.Build());
//Name
builder = ContentProviderOperation.NewInsert(ContactsContract.Data.ContentUri);
builder.WithValueBackReference(ContactsContract.Data.InterfaceConsts.RawContactId, 0);
builder.WithValue(ContactsContract.Data.InterfaceConsts.Mimetype,
ContactsContract.CommonDataKinds.StructuredName.ContentItemType);
builder.WithValue(ContactsContract.CommonDataKinds.StructuredName.DisplayName, displayName);
//builder.WithValue(ContactsContract.CommonDataKinds.StructuredName.GivenName, firstName);
ops.Add(builder.Build());
//Number1
builder = ContentProviderOperation.NewInsert(ContactsContract.Data.ContentUri);
builder.WithValueBackReference(ContactsContract.Data.InterfaceConsts.RawContactId, 0);
builder.WithValue(ContactsContract.Data.InterfaceConsts.Mimetype,
ContactsContract.CommonDataKinds.Phone.ContentItemType);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.Number, Number1);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Type,
ContactsContract.CommonDataKinds.Phone.InterfaceConsts.TypeCustom);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Data2, (int)PhoneDataKind.Mobile);
ops.Add(builder.Build());
//Number2
if (!string.IsNullOrEmpty(Number2))
{
builder = ContentProviderOperation.NewInsert(ContactsContract.Data.ContentUri);
builder.WithValueBackReference(ContactsContract.Data.InterfaceConsts.RawContactId, 0);
builder.WithValue(ContactsContract.Data.InterfaceConsts.Mimetype,
ContactsContract.CommonDataKinds.Phone.ContentItemType);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.Number, Number2);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Type,
ContactsContract.CommonDataKinds.Phone.InterfaceConsts.TypeCustom);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Data2, (int)PhoneDataKind.Mobile);
ops.Add(builder.Build());
}
if (!string.IsNullOrEmpty(Number3))
{
builder = ContentProviderOperation.NewInsert(ContactsContract.Data.ContentUri);
builder.WithValueBackReference(ContactsContract.Data.InterfaceConsts.RawContactId, 0);
builder.WithValue(ContactsContract.Data.InterfaceConsts.Mimetype,
ContactsContract.CommonDataKinds.Phone.ContentItemType);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.Number, Number3);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Type,
ContactsContract.CommonDataKinds.Phone.InterfaceConsts.TypeCustom);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Data2, (int)PhoneDataKind.Mobile);
ops.Add(builder.Build());
}
if (!string.IsNullOrEmpty(Number4))
{
builder = ContentProviderOperation.NewInsert(ContactsContract.Data.ContentUri);
builder.WithValueBackReference(ContactsContract.Data.InterfaceConsts.RawContactId, 0);
builder.WithValue(ContactsContract.Data.InterfaceConsts.Mimetype,
ContactsContract.CommonDataKinds.Phone.ContentItemType);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.Number, Number4);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Type,
ContactsContract.CommonDataKinds.Phone.InterfaceConsts.TypeCustom);
builder.WithValue(ContactsContract.CommonDataKinds.Phone.InterfaceConsts.Data2, (int)PhoneDataKind.Mobile);
ops.Add(builder.Build());
}
}
/*
public void SaveContacts(string filename)
{
var documentsPath = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryDownloads);
var filePath = Path.Combine(documentsPath.AbsolutePath, filename);
var fileContent = File.ReadAllLines(filePath);
List<ContentProviderOperation> ops = new List<ContentProviderOperation>();
foreach (var strLine in fileContent)
{
if (string.IsNullOrEmpty(strLine))
continue;
var array = strLine.Split(new string[] { "\t", ":" }, StringSplitOptions.RemoveEmptyEntries);
// NewContact(...);
//Add the new contact
ContentProviderResult[] res;
res = ContentResolver.ApplyBatch(ContactsContract.Authority, ops);
ops.Clear();
}
}
*/
public override void OnRequestPermissionsResult(int requestCode, string[] permissions, Permission[] grantResults)
{
if (requestCode == REQUEST_CONTACTS)
{
Log.Info(TAG, "Received response for contact permissions request.");
// We have requested multiple permissions for contacts, so all of them need to be
// checked.
if (PermissionUtil.VerifyPermissions(grantResults))
{
// All required permissions have been granted, display contacts fragment.
Snackbar.Make(layout, Resource.String.permission_available_contacts, Snackbar.LengthShort).Show();
// save contact
saveContact();
}
else
{
Log.Info(TAG, "Contacts permissions were NOT granted.");
Snackbar.Make(layout, Resource.String.permissions_not_granted, Snackbar.LengthShort).Show();
}
}
else
{
base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
[Export]
public void SaveContacts(View v)
{
Log.Info(TAG, "Show contacts button pressed. Checking permissions.");
// Verify that all required contact permissions have been granted.
if (ActivityCompat.CheckSelfPermission(this, Manifest.Permission.ReadContacts) != (int)Permission.Granted
|| ActivityCompat.CheckSelfPermission(this, Manifest.Permission.WriteContacts) != (int)Permission.Granted)
{
// Contacts permissions have not been granted.
Log.Info(TAG, "Contact permissions has NOT been granted. Requesting permissions.");
RequestContactsPermissions();
}
else
{
// Contact permissions have been granted. Show the contacts fragment.
Log.Info(TAG, "Contact permissions have already been granted. Displaying contact details.");
//Add the new contact
saveContact();
}
}
void RequestContactsPermissions()
{
if (ActivityCompat.ShouldShowRequestPermissionRationale(this, Manifest.Permission.ReadContacts)
|| ActivityCompat.ShouldShowRequestPermissionRationale(this, Manifest.Permission.WriteContacts))
{
// Provide an additional rationale to the user if the permission was not granted
// and the user would benefit from additional context for the use of the permission.
// For example, if the request has been denied previously.
Log.Info(TAG, "Displaying contacts permission rationale to provide additional context.");
// Display a SnackBar with an explanation and a button to trigger the request.
Snackbar.Make(layout, Resource.String.permission_contacts_rationale,
Snackbar.LengthIndefinite).SetAction(Resource.String.ok, new Action<View>(delegate (View obj) {
ActivityCompat.RequestPermissions(this, PERMISSIONS_CONTACT, REQUEST_CONTACTS);
})).Show();
}
else
{
// Contact permissions have not been granted yet. Request them directly.
ActivityCompat.RequestPermissions(this, PERMISSIONS_CONTACT, REQUEST_CONTACTS);
}
}
public void saveContact() {
List<ContentProviderOperation> ops = new List<ContentProviderOperation>();
NewContact(ref ops, "test", "1234", "2234", "3234", "4234");
//Add the new contact
ContentProviderResult[] res;
try
{
res = ContentResolver.ApplyBatch(ContactsContract.Authority, ops);
ops.Clear();//Add this line
Toast.MakeText(this, "contact saved !", ToastLength.Short).Show();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("**************-----------> : " + e.Message);
Toast.MakeText(this, "contact not saved_message !", ToastLength.Long).Show();
}
}
}
class PermissionUtil
public abstract class PermissionUtil
{
public static bool VerifyPermissions(Permission[] grantResults)
{
// At least one result must be checked.
if (grantResults.Length < 1)
return false;
// Verify that each required permission has been granted, otherwise return false.
foreach (Permission result in grantResults)
{
if (result != Permission.Granted)
{
return false;
}
}
return true;
}
}
layout activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/root_layout"
>
<Button
android:id="@+id/saveBtn"
android:onClick="SaveContacts"
android:text="save"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
Note:
1.Rembember to add the following permissions in your manifest:
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
And an app that targets Android 6.0 must always perform a runtime permission check.
For more details, check: https://learn.microsoft.com/en-us/xamarin/android/app-fundamentals/permissions?tabs=windows
2.add reference Mono.Android.Export;
3.You can refer official sample: https://github.com/xamarin/monodroid-samples/tree/master/android-m/RuntimePermissions .