Display a list of contact as I type name OR phone number in the input box

I would want to display a list of contact as the user type in the input box.

How can I programmed to display 开发者_StackOverflowit?

I know I need to add a permission, "READ CONTACT".

The most important is do I need to use Multi-Threading(Async Tasks)?

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to fetch contacts try these links:

How to call Android contacts list?

How to get contacts from native phonebook in android

How to obtain all details of a contact in Android

How to get the first name and last name from Android contacts?

How to import contacts from phonebook to our application

Android contacts extraction

How to get all android contacts but without those which are on SIM