許可權：

<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />

Intent intent = new Intent();

startActivityForResult(intent, 1);

    @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == Activity.RESULT_OK) {

            ContentResolver contentResolver = getContentResolver();
 
Uri contactData = data.getData();
// 獲取聯絡人姓名，id
Cursor cursor = getContentResolver().query(contactData, null, null, null, null);
cursor.moveToFirst();
String username = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID
 
));
cursor.close();
// 根據id獲取聯絡人電話
Cursor phoneCursor = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    null,
//                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId,
"_id = " + contactId,
                    null,
                    null,
                    null);
String usernumber1 = null;
            while (phoneCursor.moveToNext()) {
                usernumber1 = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
            phoneCursor.close();
showToast(username + "----" + usernumber1);
}
    }

查詢所有聯絡人

Uri uri = Uri.parse("content://icc/adn");
Cursor phone = reContentResolverol.query(uri,
        null,
        null,
        null,
        null);
while (phone.moveToNext()) {
    int numberIndex = phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
    if(numberIndex == -1){
        numberIndex = phone.getColumnIndex("number"); // Android2.2
}
    String phoneNumber = phone.getString(numberIndex);
showToast(username + "----" + phoneNumber);
}