croath / setting_url_scheme.md

Last active December 14, 2015 04:39

iOS setting url scheme

Only available in iOS 5.x

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General&path=Restrictions"]];

prefs:root=General&path=About
prefs:root=General&path=ACCESSIBILITY
prefs:root=AIRPLANE_MODE
prefs:root=General&path=AUTOLOCK
prefs:root=General&path=USAGE/CELLULAR_USAGE

prefs:root=Brightness

croath / note.md

Last active March 30, 2016 02:53

关于Objective-C warning的笔记。

关于deprecated方法

在开发（重构）中会遇到需要更新、替换、方法的时候，这时候就需要deprecated标签来表明已经废弃的方法。

举例说明：

croath / gist:4984421

Last active December 13, 2015 22:29

clear cookies in iOS

	- (void)clearCookies{
	NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
	for (NSHTTPCookie *each in cookieStorage.cookies) {
	if ([[[each properties] objectForKey:NSHTTPCookieDomain] isEqualToString:@".douban.com"] &&
	[[[each properties] objectForKey:NSHTTPCookieName] isEqualToString:@"bid"]) {
	[cookieStorage deleteCookie:each];
	NSDictionary* dic = [each properties];
	[dic setValue:@"" forKey:NSHTTPCookieValue];
	NSHTTPCookie* cookie = [NSHTTPCookie cookieWithProperties:dic];
	[cookieStorage setCookie:cookie];

croath / UIWebViewHttpStatusCodeHandling_checksession.m

Created February 19, 2013 08:48 — forked from ahmetardal/UIWebViewHttpStatusCodeHandling_checksession.m

	#pragma mark -
	#pragma mark UIWebViewDelegate Methods

	- (BOOL) webView:(UIWebView *)webView
	shouldStartLoadWithRequest:(NSURLRequest *)request
	navigationType:(UIWebViewNavigationType)navigationType
	{
	if (_sessionChecked) {
	[self log:@"session already checked."];
	return YES;

croath / how to get malloc info via dealloc instance memory address

Last active December 11, 2015 19:58

how to get malloc info via dealloc instance memory address // iOS develop

	有时候app crash的时候会看到类似如下的信息，除此之外就再也没有其他信息了
	MyApp [4413:40b] -[UIImage isKindOfClass]: message sent to deallocated instance 0x4dbb170
	这时候的错误定位方法如下：
	－使用gdb调试时，在debug窗口输入：info malloc-history 0x4dbb170（这里写已经dead的内存地址
	－使用lldb调试［此方法仅适用于模拟器调试，需要勾选scheme中Malloc Stack选项］，打开terminal，su权限（没su权限可能会报错）
	输入：malloc_history 4413 0x4dbb170 //4413是这个app的进程pid，在报错信息中能找到MyApp [4413:40b]

	输入以上语句之后会产生一系列log如下：（很多不用看直接跳到213行
	－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
	malloc_history Report Version: 2.0

Croath Liu croath

关于Objective-C warning的笔记。

关于deprecated方法