Mobile Develop

If you want to develop a network application program, first consider whether to access the network, in the Android phone to determine whether the Internet can beThe IsAvailable () method of the Connectivitymanager class is judged,First get an

The code for obtaining an integer between 0 and X-1 by Arc4random () is as follows: int value = arc4random ()  % x;  The code to get an integer between 1 and X is as follows:int Value = (arc4random ()% x) + 1; Finally, if you want to generate a

1, in the latest Xcode6.0 after the new project default is the use of main.storyboard, some people used to storyboard some people are not accustomed to use, when we new project delete Storyboard When we run the project discovery will error: Could

What is an app Widget?Appwidget is an application widget that is a miniature application view that can be embedded into a desktop application and receive periodic updates.How to implement Appwidget?1. Create a new Appwidget class to inherit

Very good date selector Android-times-square usage Services: Other functional categories: Tool support Platform: Android Runtime Environment: Eclipse Development Language: Java Development tools: Eclipse ：Http://sina.lt/zNDIntroduction of the source

Invoking the dynamic library file (*.so) in Android is done in a jni way, and often when you call the so file in an APK or jar package, you package the corresponding so file into the APK or jar package, the project catalog:Problems with the above

Before the online search for iOS page jumps are mostly pressed back to the kind of xib form, but my humble use of storyboard. This article only introduces the use of storyboard for page jump and pass value.New PageThe iOS program also uses the idea

We all know that the Post method in handler can update the contents of a component and use it to update the UI interface asynchronously on a child thread. Handler.post (New Runnable () {@Overridepublic void run () {//do something

First, System level: Android.accounts Android.app1. OS-relatedAndroid.osAndroid.os.storageAndroid.hardware (Sensor)Android.securityANDROID.DRM (this should be available for all apps)2. VM RelatedDalvik.systemDalvik.bytecodeIi. framework of

Android does not allow child threads to update the UI directly, and if it is important to update the UI directly on a child thread, the android.view.viewroot$calledfromwrongthreadexception:only the original Thread that created a view hierarchy can

TraceView is a good performance analysis tool equipped with Android platform. It can be graphically used to let us know the performance of the program we want to track, and can be specific to method. Version restrictions for TraceView For Android 1.5

The essence is to achieve performance optimization by reusing controls.1. Through Reused controls: &Lt ProgressBar android:id= "@+id/progressbar1" style= "? Android:attr/progressbarstylelarge" Android:layout _width= "Wrap_content"

The three of us will have my teacher. Choose the good and the poor and change it.This content: Charsequence typeThe charsequence type is an interface that represents an ordered set of characters, which includes the following methods: charAt (int

1. The method is seen from the forum, the use of their own under the feeling is very useful, do a memo here!!!!!2. Application environment, when the user enters the nickname, can not enter the expression-(BOOL) Stringcontainsemoji: (nsstring *)

iOS touch event and gesture recognitionDirectory Overview Touch events Gesture recognition OverviewTo implement some new requirements, we often need to add touch events and gesture recognition to iOSTouch eventsFour ways to

from:http://blog.csdn.net/liufan321/article/details/9121241Create a new project as follows:This article shares the experience of Images.xcassets ~_~1. Open the previously used HelloWorld project, then click and Open the images.xcassetsin the

：Scrollview+listview Overlay Nesting implementationDisable sliding the ListView:Import Android.content.context;import Android.util.attributeset;import Android.widget.listview;public class Mylistview extends listview{public mylistview (context

#pragma mark-table View//Set the number of sections-(Nsinteger) Numberofsectionsintableview: (UITableView *) TableView {Return1;}//Set the number of rows per section-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (nsinteger)

1. DatabasePackage Com.example.yqqmobilesafe.db;import Android.content.context;import Android.database.sqlite.SQLiteDatabase ; Import Android.database.sqlite.sqliteopenhelper;public class Rubishsmsdbhelper extends Sqliteopenhelper {private Static

The other day I ran into a problem with the project: I wrote a custom control for my project, and the control was heavily reused, So I'm going to define a style in the Style.xml file to reduce the duplication of the XML layout content, but there's a