Chen Ming jebai0521

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jebai0521 / iOS 倾角

Created June 13, 2015 04:55

	[self.motionManager startDeviceMotionUpdatesToQueue:[NSOperationQueue currentQueue] withHandler:^(CMDeviceMotion motion,NSError error){
	double gravityX = motion.gravity.x;

	double gravityY = motion.gravity.y;

	double gravityZ = motion.gravity.z;

	NSLog(@"gravityX = %f",gravityX);

	NSLog(@"gravityY = %f",gravityY);

jebai0521 / iOS相机权限

Created June 13, 2015 04:48

	BOOL isCameraValid = YES;
	//判断iOS7的宏，没有就自己写个，下边的方法是iOS7新加的，7以下调用会报错
	if(isIOS7AndLater)
	{
	AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
	if (authStatus != AVAuthorizationStatusAuthorized)
	{
	isCameraValid = NO;
	}
	}

jebai0521 / Ubuntu安装Nginx

Created June 13, 2015 04:39

	1. 安装Ubuntu Server版本


	2. 更新软件源
	sudo apt-get update

	3. 安装open-ssh
	sudo apt-get install openssh-server

	4. 提升ssh认証时间

jebai0521 / NSURL 构造

Created June 13, 2015 04:33

	因为播放器只支持播放NSURL参数的资源，所以要播放本地文件时，需要将路径参数转化为
	本地路径构造URL，使用NSURL 提供的静态方法fileURLWithPath

	Creating an NSURL
	– initWithScheme:host:path:
	+ URLWithString:
	– initWithString:
	+ URLWithString:relativeToURL:
	– initWithString:relativeToURL:
	+ fileURLWithPath:isDirectory:

jebai0521 / iOS获取所有字体的family name 和font name

Last active August 29, 2015 14:23

	NSArray *familyNames = [[NSArray alloc] initWithArray:[UIFont familyNames]];
	NSArray *fontNames;
	NSInteger indFamily, indFont;
	for(indFamily=0;indFamily<[familyNames count];++indFamily)
	{
	NSLog(@"Family name: %@", [familyNames objectAtIndex:indFamily]);
	fontNames =[[NSArray alloc]initWithArray:[UIFont fontNamesForFamilyName:[familyNames objectAtIndex:indFamily]]];
	for(indFont=0; indFont<[fontNames count]; ++indFont)
	{
	NSLog(@" Font name: %@",[fontNames objectAtIndex:indFont]);

jebai0521 / DesignTools

Created June 13, 2015 04:20

jebai0521 / iOS Custom Navigation Animatiion

Created June 13, 2015 04:19

	CATransition* transition = [CATransition animation];
	transition.duration = 0.4;
	transition.type = kCATransitionFade;
	transition.subtype = kCATransitionFromBottom;
	[self.navigationController.view.layer addAnimation:transition forKey:kCATransition];
	[self.navigationController pushViewController:adjustViewController animated:NO];

jebai0521 / PythonUnicode

Created June 13, 2015 04:11

	>>> print "\u624b\u673a\u7c7b\u578b".decode('unicode_escape')
	手机类型



	>>> print "\U65b9\U6cd5method\U4e0d\U5b58\U5728".decode('unicode_escape’)

	>>> print "\u65b9\U6cd5method\U4e0d\U5b58\U5728".decode('unicode_escape')

jebai0521 / Mac常用命令

Created June 13, 2015 04:07


	重启mac声卡
	sudo kextunload /System/Library/Extensions/AppleHDA.kext
	sudo kextload /System/Library/Extensions/AppleHDA.kext

jebai0521 / Linux 常用命令

Created June 13, 2015 04:05