Mobile Develop

iOS layout mechanism related methods -(Cgsize) Sizethatfits: (cgsize) size -(void) SizeToFit ——————- -(void) layoutsubviews -(void) layoutifneeded -(void) setneedslayout ——————– -(void)

In GCD, two very important concepts were added: tasks and queues . Task: namely operation, what you want to do, plainly is a piece of code, in GCD is a Block, so add the task is very convenient. There are two ways to perform a task:

iOS sixth day (3:scrollview photo carousel)#import "HMViewController.h"#defineKimagecount 5@interfaceHmviewcontroller () @property (nonatomic, strong) Uiscrollview*ScrollView, @property (nonatomic, strong) Uipagecontrol*Pagecontrol, @property

One, multithreading management mechanismSecond, NsthreadThird, nsoperationIv. GCD: Full name Grand Central Dispatch, a set of underlying APIs that provide concurrent program writing. The basic concept is the Dispatch queue (dispatch queues) and

　　　　　　　　　Steps to build an Android development environment1. Installing the JDK Run Setup to run Setup "Jdk-6u22-windows-i586-p.exe" and click Next to install the installation program.In the installation process will appear two times to select the

 AppCompat 22.1,goole, MD full compatibility low versionCategory: Android2015-04-24 09:48 1354 People read comments (0) favorite reports AndroidDirectory (?) [+]Martial arts related literary works commonly used in the "40-year-old do not lag in

1. Debug mode to see the value of the variable;To quickly evaluate the value of any expression while debugging the program, hold Alt and click this expression to see it Value and calculate it, call a method, etc.2. Auto-complete shortcut keys,

Presumably you will sometimes encounter the need to customize the control bar, this time will encounter the transmission and processing of events, very cumbersome Ah! Baidu above a ticket on the transmission mechanism of the event, but all the same,

when using the Mac computer to develop the Android program, sometimes found that the ADB connection is not on the phone, this time first you have to find your developer options inside the USB debugging function is not open, you can restart the

PrefaceThe Android.view.View view class is the base class for widgets, with many extension classes, including text view TextView, image View ImageView, progress bar ProgressBar, view group ViewGroup, and so on.The specific results are as

Discover our app iOS7.1 compiled Uisearchbar background color is blackFor normal effects (the recessed search box is not a uisearchbar background image, but a UIButton)The effect is to hide UIButton after clicking to expand UisearchbariOS7.1

Original works, reproduced please indicate the source, prohibited illegal reprint Copyright:weishusheng 2015.8.1The Android system is very popular nowadays, let's say, download the process of compiling an Android system. This is only a summary and

After upgrading the SDK, using Eclipse to create a new Android project, accompanied by a appcompat_v7 project, and the new project and appcompat_v7 have errors, check that the new project is dependent on AppCompat _v7 's Search on the Internet, said

Java code: public class messageutil {static{system.loadlibrary ("SMS");} Public static native void showtoast (object context,string message);} JNI code: File  -- sms.h//// created by mrper on 2015/8/2.//#include   #ifndef  sender_sms_h#define sender_

ServiceServiceOne of the four components no interface, running in the backgroundElements:1. Inherit Service2. Register in the manifest fileLife cycle:Open the service:StartService (Intent Intent)Life cycle:Oncreat () Onstartconmmand ()To close the

Keyword: MIUI xiaomi real machine debugging developer Options Android StudioNothing to do, got an android Hello world. The simulator is too slow, just have a millet 2,miui6. Try the physical machine debugging, found that it is not easy to find.1,

Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process:starting with any positive integer and replace the number by the Sum of the squares of its digits, and repeat the process until the

The first day is a brief introduction to the Android system.Android Origin: Android virtual machine is Dalvak, Android is based on the development of Linux.Development environment configuration for Android: using Eclipse development. First you need

IOS Multithreading Technology 2NSOperation Nsinvocationoperation //创建一个队列 NSOperationQueue *queue = [[NSOperationQueue alloc] init]; //创建子任务,定义子任务必须是 NSOperation 的子类 NSInvocationOperation *op =

Cut a picture into a circle Display a border of a specified width and color around a picture Implementation ideas Consisting of two major parts of different sizes Blue background area, size equal to the size of the