String sPhone = "xxxx"; //查詢的手機號
        List<contactinfo> contactinfoList = new ArrayList<contactinfo>();
        String[] projection = { ContactsContract.PhoneLookup.DISPLAY_NAME, 
                       ContactsContract.CommonDataKinds.Phone.NUMBER}; 
        Cursor cursor = null;
        try{
           cursor = context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    projection,
                    ContactsContract.CommonDataKinds.Phone.NUMBER +"= '"+ sPhone +"'",
                    null,
                    null);
            while(raw_c.moveToNext()){
                String name = raw_c.getString(raw_c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
                String number = raw_c.getString(raw_c.getColumnIndex(CommonDataKinds.Phone.NUMBER));
                Log.i("apiDemo","name :"+ name);
            }
        }finally{
            if(cursor!=null){
                cursor.close();
            }
        }
 

上面程式碼在邏輯上是沒有問題的.但實際上呢？

如果資料庫中儲存的為：+861xxxxxxxx1  實際查詢： 1xxxxxxxx1 
肯定查詢不到資料的！！！！

cursor = context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    projection,
                    null,
                    null,
                    null);
            while(raw_c.moveToNext()){
                String name = raw_c.getString(raw_c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
                String number = raw_c.getString(raw_c.getColumnIndex(CommonDataKinds.Phone.NUMBER));
                if(PhoneNumberUtils.compare(number ,sPhone))
                   Log.i("apiDemo","name :"+ name);
            }
 

2、PhoneNumberUtils ?