Mobile Develop

Nsarray *testarr = [Nsarray arraywithobjects:[nsnull class], nil]; UIView *d = testarr[0]; BOOL a = [D iskindofclass:[nsnull class]];//no a = [D isequal:[nsnull class]]; YES a = [D isequal:[nsnull Null]]; NO

1, the same point:A) The effect or effect is exactly the same;b) at least one parameter;c) The first parameter must have an object, because this guy is lazy.2, different points: the way to pass the parameters.Premise:1. There are two objects: A and

Generally only need to handle the button's click event, but to let a button handle multiple events, you have to listen to multiple methods at the same time.Onclicklistener Click eventsOnlongclicklistener Long Press EventsOntouchlistener Touch

In IOS8, developers can use APIs that open Touch ID permissions to third-party apps so that they use fingerprint authentication in their apps to complete the user authentication section.This article mainly describes how to integrate in the

Package Com.lapel.activity.html;import Java.io.file;import Java.io.fileoutputstream;import java.io.IOException; Import Java.io.inputstream;import Java.util.zip.zipentry;import Java.util.zip.zipinputstream;import android.content.context;/** * *

First create a Usageofapply.scala under Scala's Org.scala.clazzWe've done Java development all know that the objects in the main method are static, and the Scala object methods are static methodsNow let's look at how apply is used.When Val applytest

Calling a local function is implemented by C + + Package Com.lapel.catchuninstallself;public class Uninstallobserver {static {system.loadlibrary ("Observer");}/** * * @param path Local Installation apk path * @param URL popup page after

Reference article: http://mobile.51cto.com/aprogram-402020.htm1. First determine that the device supports OpenGL ES (typically android2.2 or above)2. The following are stated in manifest:2. Create a ViewImplement Myglsurfaceview3. Implement renderer

In learning the process of Android development you, you tend to learn how other people's application is developed, those beautiful animations and exquisite layout may let you put it down, as a developer, you may want to know how these effects

In the development of TV system, the analog source (ATV/DTV) is often used. Recently found in the test, in the DTV source, a timed timer timer suddenly paused, Baidu this timer, most of the question is how to stop the timer run, and did not mention

1. Viewport on mobile devices is the area of the device that can be used to display our pages on the screen, but not the viewable area of the browser. Generally speaking, the viewport on a mobile device is larger than the viewable area of the

Knowledge Preparation:1 to encapsulate a custom view using Xib1> Create a custom view that inherits UIView, assuming the class name is called (Kappview)2> Create a new Kappview.xib file to describe the structure inside the Kappview3> Modify the type

We can use the third frame afnetworkingto communicate with the server usingits post method. If the server returns a userId of ten , it succeeds, and the returned one represents either a user name or a password error. -(void) login: (ID) sender{    

First, configure the ant environment variablejava_home=/software/jdk1.6. 0_24ant_home=/software/apache-ant-1.9.2android_home=/software/ android-sdk-linuxexport java_home ant_home android_homepath= $JAVA _home/bin: $ANT _home/bin: $ANDROID _home/

1: Get font fileDownload font files from various channels TTF, website or from other IPA to buckle out. (Take Fzltxh.ttf as an example)2: Copy the Fzltxh.ttf file to the project3: Add the item in Info.plist:Fonts provided by Application (uiappfonts)

Android Program to implement tab type interface is very common, I do projects often used, so I would like to summarize here, the implementation of the tab type interface of several ways for everyone to reference. If there is something wrong, please

We often meet the need to give others the use of our project, in order to be able to block the code, the code is packaged into a jar package for use by third parties, but how can our resource files be used for each other?In fact, it's not so

650) this.width=650; "src=" http://sucimg.itc.cn/sblog/oce207c11864b8a4ed1211bb68f452854 "border=" 0 "style=" margin : 0px auto 10px;padding:0px;border:0px;text-align:center; "alt=" oce207c11864b8a4ed1211bb68f452854 "/> Mobile application software

First define the layout file, and click events Public classMainactivityextendsActivity {Private Final intMsg_hello = 0; PrivateHandler Mhandler; PrivateButton btnsubmit; PrivateEditText txtUserName, Txtpassword; PrivateTextView Loginresult;

1. Method definitionCall Method:Syntax: Call ([thisobj[,arg1[, arg2[, [,. ArgN]]])Definition: Invokes one method of an object, replacing the current object with another object.DescriptionThe call method can be used to invoke a method in place of