Mobile Develop

+ (Schoolmanger *) Sharedinstance{schoolmanager *inst=nil;static dispatch_once_t oncetoken;dispatch_once (& Oncetoken,^{inst=[[schoolmanager alloc] init];}); Return inst;} void Diapatch_once (dispatch_once_t *predicate,dispatch_once_t block), where

Viewpager is a good interface container, but sometimes it may not be necessary to move the left and right events, and then list a wayMethod:Write a custom class, inherit Viewpager, then rewrite the Ontouchevent event and do nothing1

The system-provided interface [[Uidevice Currentdevice] model] can only get iphone,ipad can not be specific to iphone6, etc.The following interface can be obtained to specific, followed by a new system in addition + (nsstring*) deviceversion{//need

In the development of IOS , we will encounter the case that the program throws an abnormal exit, and if it is in the process of debugging, the information of the exception is clear at a glance, but it is sometimes difficult to get the information of

Android supports the ability to change languages at run time, location, hardware, and it is done by terminating and restarting activity to implement the appeal function. The resolution of the resources used in the activity can be forced to be

RelativelayoutFillet implementation: The drawable directory defines the shape's XML file: Mall_header_rel_bg.xml XML version= "1.0" encoding= "Utf-8"?>Shapexmlns:android= "Http://schemas.android.com/apk/res/android" > SolidAndroid:color=

Viewpager set page change monitoring, to request the server when the page transforms, update the pageMethod:1Mviewpager.setonpagechangelistener (NewOnpagechangelisterer () {2 3 @Override4 Public voidOnpageselected (intposition) {5

Share features:：Code (share text, video or image settings type):1 @Override2 protected voidonCreate (Bundle savedinstancestate) {3 Super. OnCreate (savedinstancestate);4 Setcontentview (r.layout.activity_main);5Button.setonclicklistener (

In the app , an activity usually refers to a separate screen, which is a Web page within a Web site that is visible to the user, can display some controls on it, and can listen for the time it takes to process the user to respond. so How do you

1. Create a new class that inherits from UITableViewCell2. Overriding Initwithstyle:reuseidentifier: MethodsØ Add all the child controls that need to be displayed (you do not need to set the child control's data and frame, the child controls to add

iOS or iOSI've seen a lot of friends writing blogs sometimes written in iOS, I didn't care about it, until one day, a girl in the X net told me that iOS is right, we will pay attention to this detail during the interview. So he hurried to change the

Xib file is a lightweight used to describe the local interface of the file, in the previous article explains the add Xib file for the controller, this section mainly explains the local interface through the Xib file representation. Create a xib

1. PrefaceTheir own projects need to be internationalized and require the application of internal switching languages. This can be done, it is not difficult, you can directly poke GitHub to seeHttps://github.com/leo90821/LocaliztionStringExchange2.

When using the Javah command, it is found to use directly:javah-d Outputdir-jni Xxx.xxx.MyClassWill Appear:Error: class Android.hardware.Camera not found. Because my MyClass inside quoted android.hardware.Camera, so must add ClasspathNote that on

General Android projects from Eclipse to Android Studio (hereinafter referred to as), there will be a variety of problems, the most important is that "gradle" so far not supported. so library files packaged into the Apk.That is, if you are using a

Using ContentProvider1, the first to inherit ContentProvider2. To declare contentprovider in the configuration fileAndroid:name= ". Providers. Personcontentprovider "android:authorities=

Disclaimer: This article is reproduced from http://blog.csdn.net/bear_huangzhen/article/details/24488337, only the use of their own learning.In the development of Android programs, We often use shape to define a variety of shapes, first of all we

Reference Url: http://www.2cto.com/database/201205/133542.htmlHttp://www.cnblogs.com/kerrycode/p/4244493.htmlHttp://itlab.idcquan.com/Oracle/induction/887141.htmlException description: the execution of a query operation in the project

In simple terms, it is easy to find and navigate the Code.Here's An example of how to quickly navigate to the code I've Identified. #pragma mark Play Metronome-(void) Run: (nsnumber *) Tick{//...}OK, so how to find it, click on the navigation bar

void Test () {LinearLayout linearlayout = new LinearLayout (this);ProgressBar ProgressBar = new ProgressBar (this, null, android. r.attr.progressbarstylehorizontal);Setcolors (progressBar,0xff0000ff,//bgcolor Blue0xffff0000//progresscolor