android - 如何从联系电话中读取联系人姓名？

Question

我正在尝试在 ListView 中显示联系人号码和联系人姓名。我已经完成了...:

public String DisplayName(String number) {
    Uri uri = Uri.withAppendedPath(
            ContactsContract.PhoneLookup.CONTENT_FILTER_URI,
            Uri.encode(number));
    String name = "?";

    ContentResolver contentResolver = getContentResolver();
    Cursor contactLookup = contentResolver.query(uri, new String[] {
            BaseColumns._ID, ContactsContract.PhoneLookup.DISPLAY_NAME },
            null, null, null);

    try {
        if (contactLookup != null && contactLookup.getCount() > 0) {
            contactLookup.moveToNext();
            name = contactLookup.getString(contactLookup
                    .getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
            // String contactId =
            // contactLookup.getString(contactLookup.getColumnIndex(BaseColumns._ID));
        }
    } finally {
        if (contactLookup != null) {
            contactLookup.close();
        }
    }

    return name;
}

但我的应用程序一直强制关闭，我不知道为什么？？我也包括了许可......""

有什么猜测吗？为什么

Answer 1

使用这两种方法:

/*
 * Returns contact's id
 */
private String getContactId(String phoneNumber, Context context) {
    ContentResolver mResolver = context.getContentResolver();

    Uri uri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI,
            Uri.encode(phoneNumber));

    Cursor cursor = mResolver.query(uri, new String[] {
            PhoneLookup.DISPLAY_NAME, PhoneLookup._ID }, null, null, null);

    String contactId = "";

    if (cursor.moveToFirst()) {
        do {
            contactId = cursor.getString(cursor
                    .getColumnIndex(PhoneLookup._ID));
        } while (cursor.moveToNext());
    }

    cursor.close();
    cursor = null;
    return contactId;
}

/*
 * Returns contact's name
 */
private String getContactName(String contactId, Context context) {

    String[] projection = new String[] { Contacts.DISPLAY_NAME };
    Cursor cursor = mResolver.query(Contacts.CONTENT_URI, projection,
            Contacts._ID + "=?", new String[] { contactId }, null);
    String name = "";
    if (cursor.moveToFirst()) {
        name = cursor.getString(0);
    }

    cursor.close();
    cursor = null;
    return name;
}