picture width is fixed, therefore needs to calculate the height according to the picture proportion, causes the picture and so on proportional display. The advantage is that MOM no longer has to worry about my pictures being stretched out of shape ... and also need to use the height of the picture to calculate the entire CollectionView contentsize ... Finish the call!!!
The main course is here!!!
The following are included in the custom Customcollectionviewlayout class
Custom Uicollec
After the development of IOS for some time, I found that not only focus on the completion of the requirements, the use of spare time to explore other development skills, in order to improve their level in a limited period. Of course, the proposition "Other development techniques" does not feel marginal to any development area, and for me, trying to touch Objc/runtime is the first step in exploring the development of
iOS can also be used in regular expressions in 4.0, and the functionality is quite powerful.
Once thought oneself already mastered regular expression, these 2 days only then understood regular expression has how complex, originally also has specially thick a book "The Regular Expression Entry Classics".
The goal of the applet is to match the PGN games in the same section.
The rule is: the number represents the first round, there is a small period, an
Preface
Recently, I spent more energy on Android automation, but saw a lot of people on the web studying and learning about iOS automation, so I took the time to study it yesterday. Make a note of it. Body
BrewIn this case, brew is installed, and brew is an essential Suite manager for Mac OS.Execute the following commandRuby-e "$ (curl-fssl https://raw.github.com/Homebrew/homebrew/go/install)"
Node.jsDown is the installation of Node.js, Brew install
Recently the project has just been delivered, and there are occasional voice and voice search features. Voice search I use is to fly the demo, the feeling is also good, interested in the words can go to the official online download demo, which said the special details, but slightly more trouble. Voice broadcast flying also has a demo, but do the development of course to seek the most concise way to deal with, after ios7.0 added some new features, which have the system with the Voice broadcast li
', \
];\
} '];
Master the above 4 steps, basically in iOS end and JS interaction is completely OK.Then we start to H5 with the Android end.Here, we found a problem:The Android side JS method calls the native method, you need to specify InterfaceName, so their JS invocation is this way:
Xxname.log (' arg1 ');
The front is more out of the xxname, this way, we directly use Jscontext for listening processing is not possible
This cannot be per
Gesture recognition is important in iOS, and gesture manipulation is an important feature of mobile devices, greatly increasing the ease of use of mobile devices.
1, Uigesturerecognizer Introduction
Gesture recognition is important in iOS, and gesture manipulation is an important feature of mobile devices, greatly increasing the ease of use of mobile devices.
iOS
I just recently in the development of a mall project, the implementation of a simple control, and we share it.
The effect of the control is similar to the Baidu glutinous rice or the United States Group level Two menu, I developed iOS client menu function, a direct reference to git a project, the corresponding UI effect:
In fact, the effect looks good. After the development of iOS, you are ready to deve
iOS Location-normal location (no map)-Anti-geocoding (get specific location), the following code to explain to everyone, the code is as follows:
#import
The use of iOS Baidu map (general positioning, anti-geo code)
1. First accept the basic map function
Create a new map class, xib drag also line, my side is the code implementation.
_mapview = [[Bmkmapview alloc]initwithframe:cgrectmake (
The following through the way to share the information in this area, the specific contents are as follows.
Compared to Google's ban on advertising interception, Apple's attitude is diametrically opposed, following the Mac version of Safari to join the advertising interception tool, the upcoming iOS9 to Safari also introduced a content interception plug-in-content blocker, And developers can use the latest XCODE7 development and use the iOS 9 simulato
It is normal to encounter a program crash in iOS development, how to catch exception information when a program crashes and notify the developer?
Here's how to implement this in iOS:
1. Add an exception capture listener at the start of the program to handle the callback action when the program crashes
Copy Code code as follows:
Nssetuncaughtexceptionhandler (uncaughtexceptionhandler);
Anychat Mobile Video development kits are for integration or software developers to use for mobile video-related product development and system integration.
Development package to provide mobile phone audio and video capture, coding, compression, audio and video transmission functions, through the docking with the back-end server, priority Peer-to-peer Communication, the realization of mobile phone video is the transmission, mobile video live, cell phone video recording and mobile video calls.
Foreword: When doing iOS project today, need to be positioned to get the name of the current city. Baidu Maps SDK has this function, but in order to not rely on a third party, here I use iOS with the framework corelocation to achieve this requirement. IOS8 out, for positioning needs a little more processing, can be normal positioning, this will be at the end of the article to supplement, in the statement be
Html5+canvas mobile phone photo upload, found that the iOS mobile phone upload photos will be rotated counterclockwise 90 degrees, horizontal shot without this problem, the Android phone is not the problem.
So the idea to solve this problem is to get to the orientation angle of the photo shoot, and to rotate the angle rotation of the iOS photos that are not sideways.
Using Exif.js to read the photo inform
To prevent an application from consuming too much system resources, the Apple Engineer Gate that developed iOS designed a "watchdog" mechanism. In different scenarios, the watchdog monitors the performance of the application. If the runtime is exceeded by the scenario, the watchdog will force the end of the application process. In Crashlog, developers will see error codes such as 0x8badf00d.
This is particularly true in the case of arc and the low ph
In order to have a good interactive experience, I believe that everyone in the treatment of ScrollView no data when the prompt page will use some third-party to customize, the most typical is the use of dznemptydataset. But it is not so good to write a bunch of code related to Dznemptydatasetdelegate,dznemptydatasetsource in every interface, and that's usually the way to avoid it. And Swift, in addition to object-oriented programming, can also be oriented toward protocol programming. Can you als
Original: Http://www.ui.cn/detail/59734.html?utm_source=tuicool
before, I always think of 320pt and 640px, because this can 1x2x perfect fit,
Now that the idea is a little outdated,
iphone 4 iphone 4S iphone 5 iphone 5C iphone 5S are designed with 320pt, now 357pt,414pt come, everyone is holding P6 and p6+ have face.
and Android is generally according to the design of the iOS to adjust the development of appropriate, 640 and 720 difference 80px (40D
] inputisavailable]; } 2. detecting Sound output devicesFor the output device detection , we only consider 2 cases, one is the device itself out (Itouch/ipad/iphone), one is currently inserted with out headphones . iOS has already provided a way to get all of the current sound devices, and we just need to check to see if we have the ones we care about in these devices.Get all current sound devices:[Plain] view plaincopyprint? Cfstringref Route; UInt32
Addgesturerecognizer:imagetap];
[Self.view AddSubview:self.smallImageView];
}
Notice that I've used two preset constants to set the size of a small image: the height and width of the screen, this will be based on the screen size of the phone to ensure that the picture is always centered, for these two constants, you can view my blog: iOS get screen width, device model, system version information
OK now the small figure has been added to the
iOS constraint conflicts generally fall into two categories: Margin constraint conflicts or dimension collisions, which can often be modified by modifying the constraint precedence of one of the controls, using the content hugging/content Compression resistance, The prerequisite for use is to determine the size of its control, which is generally used after the AutoLayout is successfully constrained.
To set the maximum priority, you can ensure that an
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