Android只使用列有电子邮件> android 2.0的联系人获取游标

val contentResolver = getContentResolver()
val cursor = contentResolver.query(
    ContactsContract.Contacts.CONTENT_URI,
    arrayOf(
        ContactsContract.Contacts.DISPLAY_NAME,
        ContactsContract.Contacts.HAS_PHONE_NUMBER
    ),
    ContactsContract.Contacts.DISPLAY_NAME + "=?",
    arrayOf("Miller"),
    null
)

if (cursor != null) {
    while (cursor.moveToNext()) {
        val name = cursor.getString(0)
        val hasEmail = cursor.getInt(1) > 0

        if (hasEmail) {
            val emailCursor = contentResolver.query(
                ContactsContract.CommonDataKinds.Email.CONTENT_URI,
                arrayOf(
                    ContactsContract.CommonDataKinds.Email.ADDRESS
                ),
                ContactsContract.CommonDataKinds.Email.CONTACT_ID + "=?",
                arrayOf(name.toString()),
                null
            )

            if (emailCursor != null) {
                while (emailCursor.moveToNext()) {
                    val email = emailCursor.getString(0)
                    // Do something with the email address
                }
                emailCursor.close()
            }
        }
    }
    cursor.close()
}