Tonny Xu TonnyXu

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

A: YES, we can

Q: How?

Delete the app.
Wait for at least one day.

See reference:

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

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";

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"]];

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

Refresh: How to use NSOperation

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

Create your own `NSOperation` subclass

@interface MyOperation : NSOperation
@end

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.


	"""
	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):

	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

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

	#import <Foundation/Foundation.h>