TonnyXu

Q: Is it possible to debug on a device with new iOS version with an old Xcode

The answer is: YES

How?

It's not as simple as plug your device and go. Before we start to learn how, we need to understand something.

Understand the relationship between Xcode and iOS device

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Refresh: How to use NSOperation

Using NSOperation is easy, typically, it is used as below:

Create your own NSOperation subclass

@interface MyOperation : NSOperation
@end

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What is RVI?

RVI = Remote Virtual Interface

What RVI can do?

Using RVI, you can capture network packages in iOS using any normal package capturing tools like tcpdump etc.

Wire your rvi to Mac

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Before GCD

Almost the only option for us is sleep(n) (if you are familiar with SIGNAL, you can also use it). We are familiar with it, so let's pass it.

After GCD

There is resource called semaphore, use it can make your code more robust and more efficient.

 NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"http://www.google.com"]];

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目的

このようなコードを使えるようにする:

    yyyyMMdd_HHmmss_dfObj = [[NSDateFormatter alloc] init];
    yyyyMMdd_HHmmss_dfObj.formatterBehavior = NSDateFormatterBehavior10_4;
    yyyyMMdd_HHmmss_dfObj.timeZone = [NSTimeZone timeZoneWithName:@"Asia/Tokyo"];
    yyyyMMdd_HHmmss_dfObj.calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    yyyyMMdd_HHmmss_dfObj.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];
    yyyyMMdd_HHmmss_dfObj.dateFormat = @"yyyy-MM-dd HH:mm:ss";

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KVCを使えば、このようなコードが自動的に値を計算してくれる。

KVC with special keyPath is really powerful for collection objects like NSArray and NSDictionary and NSSet

AppleのDocを見る

@max, @min, @sum, @avg

Sample 1 : One of the element in the array does not contain height property

TonnyXu

Q:Can we reenable Push Notification after we disabled it at the first time?

A: YES, we can

Q: How?

1. Delete the app.
2. Wait for at least one day.

See reference:

TonnyXu

//
//  main.m
//  NSStringHash
//
//  Created by Tonny Xu on 2/10/13.
//  Copyright (c) 2013 Tonny Xu. All rights reserved.
//

#import <Foundation/Foundation.h>

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def genFontStr13(str)
  if (str =~ /^\d{13}$/).nil? then
    return nil
  end
  table = ["AAAAAA", "AABABB", "AABBAB", "AABBBA", "ABAABB", "ABBAAB", "ABBBAA", "ABABAB", "ABABBA", "ABBABA"]
  first = str[0,1]
  first6 = str[1,6]
  last6 = str[7,6]
  table2 =  table[first.to_i]
  result = first

TonnyXu

"""
automation based on selenium webdriver with safari native support
"""

from selenium.webdriver.common.by import By
from selenium import webdriver
import unittest, time

class WebKitFeatureStatusTest(unittest.TestCase):