IOS

Problems: The following two types of custom UIBarButtonItem code are correct under iOS7: [[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil] setTitleTextAttributes:@{NSForegroundColorAttributeName :[UIColor darkGrayColor]}

Paste Code directly # Import "ViewController. h "@ interface ViewController () @ end @ implementation ViewController-(void) viewDidLoad {[super viewDidLoad]; NSLog (@" ---- % @ --- ", [self decimalwithFormat: @ "0.0000" floatV: 0.334]); NSLog (@ "--

PB is a serialized method of structured data used for communication protocols and data storage that is language-independent, platform-independent, and scalable. Supports C ++, Python, and Java. Protocolbuf is better than XML● Simpler● 3-10 times

Solution: Use the following code: NSDate * date = [_ pickerVIew date]; NSDateFormatter * formatter = [[NSDateFormatter alloc] init]; formatter. dateFormat = @ "yy-MM-dd HH: mm: ss"; NSString * timeStr = [formatter stringFromDate: date]; NSLog (@

UIButton achieves background stretching, that is, there are two ways to do this without stretching between the two ends of the image: The first method is simple and widely used. The method is to directly stretch the image for setBackgroundImage. The

Recently, the project encountered a very strange problem. When you click the button to start presentViewController, the following results are displayed: Code: AddFriendViewController * addFriendVC = [[AddFriendViewController alloc] init];

In iOS development, deleting files under the Documents directory in Sandbox may be a common operation. Below is some of my encapsulated code: -(Void) viewDidLoad {[super viewDidLoad]; NSString * fileName = @ "test"; NSString * filePath = [self

Codoon should stick to writing things to prevent the speed of the bald roof from accelerating! I will start with this in 2104. I haven't written it for a long time. It's decadent... // -(UIImage *) captureCurrentView :( UIView *) view { CGRect

The certificate can be tested on the local machine, but the p12 certificate cannot be poured out, and the certificate cannot be expanded. Please refer The certificate is still valid, that is, the small triangle that has not been expanded.

The chat bubbles and the chat bubbles of Apple Text messages have always been very classic. A small bubble increases and decreases according to the amount of text. In fact, the implementation is very simple, mainly because of the adaptive height of

I encountered a problem during project development. I directly created a UIScrollerView ON THE UIViewController and added the UIScrollerView as a subview TO THE UIViewController, Another UISlider component is added to UIScrollerView. During the

By using the create groups for any added folders method, all resources are placed under the Resource Package path, and there is no hierarchical concept.The expression like create folder references for any added folders is to put them in the

Two days ago, iOS7.1 was officially released. This release has brought about a huge change, which is a huge waste for all iOS enterprise developers, because the original HTTP application publishing method is no longer effective. This change was not

Thread Overview For example, if Hello World is run and printed, its life cycle ends. Some programs are a circle that keeps repeating until it is cut off, such as the operating system, until you shut down. Create thread 　[myObj

Strong: applies to OC objects. It acts the same as retain in non-ARC objects. Its Modified member variables are strongly pointer-type weak: applies to OC objects and works the same as assign in non-ARC objects, modified member variables are weak

In a certain language, the regular expression tool can be regarded as a bucket. This tool processes Regular Expressions and water, so there is a lot of water, whether it is fresh water or salt water, or rain, at least for the Perl regular expression,

Some progress bar functions on Github are implemented through Core Graph. It doesn't matter whether it is correct or not, but the development efficiency is much worse, and the operation efficiency is worth studying. In fact, the Core Animation

Link to the API development tutorial on Baidu map Official Website: Click to open the link I followed his tutorial to make the error "Apple Mach-O linker command failed with exit code 1", so I had to search the Internet. Let's talk about how to

This article implements the magnifier function. The usage is as follows: 1. Import the MagnifierView class to the project. : Http://pan.baidu.com/s/1eUz2Q ViewController. h #import #import "MagnifierView.h"@interface ViewController :

1. @ class Use Cases:For cyclic dependency, for example, Class A references Class B, and Class B also references Class; We can see that the Person and Card references each other. If # import compilation is used, an error is returned! Therefore,