Android：如何通过电话号码获取联系人ID？

ContentResolver contentResolver = context.getContentResolver();

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

String[] projection = new String[] {ContactsContract.PhoneLookup.disPLAY_NAME,ContactsContract.PhoneLookup._ID};

Cursor cursor =  
   contentResolver.query(
        uri,projection,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));
    Log.d(LOGTAG,"contactMatch name: " + contactName);
    Log.d(LOGTAG,"contactMatch id: " + contactId);
  }
  cursor.close();
}