how to access contacts in my android program

Question

I\'m making an text message application and want to access contacts in my Android application .

I want to access contacts as if they where in the actual contact list. W

Answer 1

I was able to use @Balaji.K 's example with some modification. The main issue I ran into is that

while (cursor.moveToNext()) {

will skip over the first result.

I also wanted to build a list of phone numbers for a user to select from if none are marked as "Mobile". I also pass in a name to search (variable replaced with in this example), but one could modify this code to build a collection by replacing "selection" and "selection_args" with null and iterating over everything in "contacts" as I did for "phones". Here is what I ended up with (in Kotlin):

val selection = "lower(${ContactsContract.Contacts.DISPLAY_NAME_PRIMARY}) LIKE ?"
val selectionArgs = arrayOf("")
selectionArgs[0] = "%%"

// Query contacts for someone with a matching name
val contacts = contentResolver.query(ContactsContract.Contacts.CONTENT_URI,
        null, selection, selectionArgs, null)
contacts!!.moveToFirst()
if (contacts.count > 1) {
    // TODO: Disambiguate and move to the correct position
}
val contactId = contacts.getString(contacts.getColumnIndex(
        ContactsContract.Contacts._ID))

// Check if contact has at least one phone number
if (contacts.getString(contacts.getColumnIndex(
                ContactsContract.CommonDataKinds.Phone.HAS_PHONE_NUMBER)) == "1") {

    val sel = "${ContactsContract.CommonDataKinds.Email.CONTACT_ID} = ?"
    val selArgs = arrayOf(name)
    val sort = "${ContactsContract.CommonDataKinds.Email.LAST_TIME_CONTACTED} DESC"
    selArgs[0] = contactId

    val phones = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, sel, selArgs, sort)
    phones!!.moveToFirst()

    // Iterate through phone numbers if multiple
    if (phones.count > 1) {
        val phoneNumbers = mutableMapOf()
        var loop = true
        var mobileIndex: Int? = null
        while (loop) {
            val phoneType = phones.getInt(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE))
            val phoneName = ContactsContract.CommonDataKinds.Phone.getTypeLabel(resources, phoneType, null).toString()
            phoneNumbers[phones.position] = ContactData(phoneName, phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)))
            // Remember what position the mobile number was in
            if (phoneType == ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE) {
                mobileIndex = phones.position
            }
            loop = phones.moveToNext()
        }
        phones.moveToPosition(mobileIndex)
    }
}