Question

我试图在Android上获取与给定电话号码相关联的所有联系人姓名。

public void getContactName(Context context, String phoneNumber) {
    Uri uri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode(phoneNumber));
     Cursor cursor = context.getContentResolver().query(uri, new String[]{
      ContactsContract.PhoneLookup.DISPLAY_NAME, ContactsContract.PhoneLookup._ID}, null, null, null);

    if (cursor != null) {
        while (cursor.moveToNext()) {
            String contactName = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.PhoneLookup.DISPLAY_NAME));
            String contactId = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.PhoneLookup._ID));
            System.out.println("ID : " + contactId + " Name : " + contactName);
        }
        cursor.close();
    }
}

但是我得到了重复的值

10-02 16:47:06.585  23359-23359/? I/System.out﹕ ID : 3480 Name : Issac
10-02 16:47:06.585  23359-23359/? I/System.out﹕ ID : 3480 Name : Issac
10-02 16:47:06.585  23359-23359/? I/System.out﹕ ID : 3401 Name : Ann
10-02 16:47:06.585  23359-23359/? I/System.out﹕ ID : 2819 Name : Sam
10-02 16:47:06.585  23359-23359/? I/System.out﹕ ID : 3480 Name : Issac
10-02 16:47:06.585  23359-23359/? I/System.out﹕ ID : 3480 Name : Issac
10-02 16:47:06.585  23359-23359/? I/System.out﹕ ID : 2819 Name : Sam

代码有什么问题吗？如何通过电话号码获取所有联系人姓名？

Answer 1

我真的不知道为什么光标会多次返回相同的值。为了获得唯一值，我将id存储在arraylist中，它只包含唯一值。然后通过循环联系ID我可以获得联系人详细信息

public void getContactName(Context context, String phoneNumber) {
    Uri uri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode(phoneNumber));
    Cursor cursor = context.getContentResolver().query(uri, 
    new String[]{ContactsContract.PhoneLookup.DISPLAY_NAME, ContactsContract.PhoneLookup._ID},null, null, null);
    List<String> listIds = new ArrayList<String>(); //Arraylist to hold the unique ids
    if (cursor != null) {
        while (cursor.moveToNext()) {
            String contactId = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.PhoneLookup._ID));
            if(!listIds.contains(contactId))
                listIds.add(contactId); //adding unique id to arraylist
        }
        //pass unique ids to get contact names
        for (int i = 0; i < listIds.size(); i++) {
            String newId = listIds.get(i);
            Cursor cursorDetails = context.getContentResolver().query(
                    ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    null,
                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                    new String[]{newId}, null);
            if (cursorDetails != null) {
                if (cursorDetails.moveToFirst()) {
                    String contactName = cursorDetails.getString(cursorDetails.getColumnIndexOrThrow(ContactsContract.PhoneLookup.DISPLAY_NAME));
                    System.out.println("ID : " + newId + " Name : " + contactName + " Number : " + phoneNumber);
                }
                cursorDetails.close();
            }
        }
        cursor.close();
    }

}

Logcat输出：

10-03 12:24:08.161 6306-6306/? I/System.out: ID : 3480 Name : Issac 
10-03 12:24:08.161 6306-6306/? I/System.out: ID : 3401 Name : Ann
10-03 12:24:08.171 6306-6306/? I/System.out: ID : 2819 Name : Sam

如何使用电话号码获取所有联系人姓名？

1 个答案: