Mobile Develop

For Android touch events, it has been a bit blurry, so decided to figure it out. Here are three parts to solve the problem: the first part: how touch events originate. Part Two: How the view handles touch events. Part Three: ViewGroup is how to

I. Shadow2dprojext function needs to pass in a depth texture and coordinates of a point (4 dimension)1. The first thing to note here is that this texture must be sampler2dshadow using the sampler type, and the direct use of sampler2d is not possible,

With the development of mobile platform and the continuous improvement of its application, quality becomes the key to success. Users require their installed applications to respond quickly and with good performance, and if an application does not

In the development process, we often use a lot of addresses, or the size of the screen, so we have to use these strings frequently, of course, we can set these strings as macros but the macro can only be accessed in this file, then we can set the

in Android, there are two ways to create a dialog box:1. With the dialog class, or its subclasses (such as Alertdialog)2. Use Activity's dialog box themeUse the dialog class:Let's take a look at how to create a dialog box with the dialog class,

Access and add request, session, application properties in Struts2Public String Execute () {//Actioncontext Actioncontext = Actioncontext.getcontext () is recommended if the property is placed only in these three scopes;// Put

Https://github.com/StackExchange/dapper-dot-netDapper is an extension to idbconnection, and the extension required to use Dapper provides only the Sqlmapper file in its own project. So the idbconnection in the project can use the extension method in

Uialertview is not the same in iOS as in general UIView, and sometimes it can be inconvenient to use. In particular, there are some difficulties in referencing the currently displayed Uialertview. Uialertview before IOS7The following code can

Next, add a button to the top right of each view controller. For both buttons, double-click and press BACKSPACE to set the button title to an empty string.Also set each button ' s background color to black.Now it's time to position the buttons with

Public abstract classSqliteopenhelperInheritance relationshipJava.lang.Object|____android.database.sqlite.sqliteopenhelperclass overviewThis is an auxiliary class that is used to manage the creation of databases and the version of the database.You

Topic:Enter a two-dimensional shaping array with positive numbers in the array and a negative number.The maximum value for the and of all sub-arrays. Requirements:The pair completes the programming

is currently trying to write apps, found to understand the code and can write out the gap is very large, the most critical is the Java base comparison of the poor, because only the Python,java Foundation only a week after learning. It is not as

First, keyword description1. @synthesize Keywords:According to the @property setting, the corresponding access method of the member variable is generated automatically, so that the member variable can be accessed conveniently using the point

As the Android development time is longer, according to the Android experience, the general development interface is to use XML to write layout files, rarely completely use code to write layout, recently just learned iOS, found that many are

I. Brief introduction of TraceView toolsTraceView is a good performance analysis tool equipped with Android platform. It allows us to understand the performance of the program we are tracking through a graphical interface and can be specific to

Recently we have received a new demand, need to play similar xx001-xx100 a total of 100 such IPA channel package, do not need to sign. (This batch of IPA package will be signed with Enterprise certificate, will not affect AppStore)All the functions

"android implementation of several consecutive side-by TextView Click to change the background color to achieve tab tab bar Toggle effect"The implementation of the component interaction is simple, just like the Tab tab of the navigation bar, when

Because of the needs of app development, we need to get JSON format data from API interface and save the theme color and related URL of the temporary app.There are a number of scenarios:1, Save as global variable via appdelegate, then get2, using

First step: get a pie chart object from the factoryGraphicalview graphicalview=chartfactory.getpiechartview (getbasecontext (), dataset, renderer);//pie ChartStep two: Set DataSet datadouble[] values={412.0,542.0,486.0,900.1}; Categoryseries dataset=

Transferred from: http://my.oschina.net/w11h22j33/blog/208574About Uiview's Layer,ios offers three methods:1,LayoutsubviewsIn iOS5.1 and previous versions, the default implementation of this method will not do anything (implementation is empty),