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NuGet: https://www.nuget.org/packages/RedCorners.Components.DeviceContacts

GitHub: https://github.com/saeedafshari/RedCorners.Components.DeviceContacts

Setting Up / Permissions

iOS

iOS info.plist:

<key>NSContactsUsageDescription</key>
<string>This app requires access to contacts.</string>

Android

Android Manifest:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
...>
  <application ...>...</application>
  <uses-permission android:name="android.permission.READ_CONTACTS" />
</manifest>

MainActivity.cs

protected override void OnCreate(Bundle savedInstanceState)
{
  ...
  global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
  DeviceContacts.Init(this);
  LoadApplication(new App());
  ...
}

public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
{
  DeviceContacts.OnRequestPermissionsResult(requestCode, permissions, grantResults);
  ...
  base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
}

Listing Contacts

var provider = new DeviceContacts();
var contacts = await contacts.GetAllAsync();

It's strongly advised that you check for exceptions there, because GetAllAsync throws exceptions if the permission to read contacts is not granted:

try
{
  var provider = new DeviceContacts();
  var contacts = await contacts.GetAllAsync();
}
catch (Exception ex)
{
  App.Instance.DisplayAlert("Error", ex.ToString(), "OK");
}

Asking for permissions

When you call await contacts.GetAllAsync(), the library automatically displays the permission request dialog.

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Access device contacts on iOS and Android.

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