Mobile Develop

The problem with JDK version errors in Android packaging is essentially an SDK issue, regardless of the JDK. If the SDK API is 24 or higher, requires JDK 1.8, I specify the API here is 22, so go to the 22 SDK Platform to install.[Dex] Pre-dexing

Some time ago the product let me do an animation, the requirement is the horizontal line of the way, in portrait display pictures, finally show a few seconds of animation in the original way back, and then I find information on the Internet, found

Android Learning note 25 ListView Multi-layout implementationThis section describes the last section of the ListView control, implementing a multi-layout of item. As we often use the various Instant messaging tools, QQ, etc., if their conversational

Foundation Framework-StringFirst, some common classes in the foundation frameworkString type:NSString: Immutable stringNsmutablestring: Variable stringSet Type:1)NSARRAY:OC Non-variable groupNsmutablearray: Variable

Original address: http://android.xsoftlab.net/training/custom-views/index.htmlIntroductionThe Android framework contains a large number of view classes, which are used to display a wide range of data and interact directly with the user. But at some

If two vertices can be connected to each other, the two vertices are strongly connected (strongly connected). If there is strong connectivity to every two vertices of the graph G, the G is a strongly connected graph. Strongly connected graphs have a

Binder-binders that do not support native layers Memory sharing-not supported Semaphore (signal semaphore)-not supported Message Queuing-not supported Signal-support, but can not be used Sigqueue message, can only be used to install

Recently in the making of an Android news client, the feeling is quite rewarding.Let's share some of the ways volley gets network data.Volley is a network communication library launched by Google I/O 2013, which is highly scalable and uses it to

Use of the 1.Log class(1) log.v () v is the meaning of the verbose reminder(2) LOG.D () d is debug debugging(3) log.i () I is the meaning of info(4) LOG.W () W is the meaning of the warn warning(5) LOG.E () e is the meaning of error(6) LOG.WTF ()

Http://www.cnblogs.com/plokmju/p/android_AsyncTask.htmlAsynctask, an asynchronous task, can simply perform asynchronous operations and publish execution results to the UI main thread. Asynctask is an abstract class, and its interior is actually a

Preparatory work:1. Need to install JDK, I am using JDK 1.7.0;2. Install NDK, I am using the version of Android Studio automatically downloaded;Now to implement this invocation process:1. Create a new project: MyjnitestActivity_main.xml (for

After finishing the shortcut keys of OSX, it is natural to develop the environment shortcut keys, temporarily organized some of their own commonly usedIn fact as many may use more than the shortcut key is completely with the Mac text editing

The system has not already had the notification center Nsnotificationcenter? Why do you have to implement one yourself? Let's consider the following example (most of which I copied the instructions and the original code I wrote on GitHub ):Among the

An idle youth, needy age. The carefree and unrestrained university time has led to today's not even C + + programming. As a programmer, it's embarrassing not to say it in C + +. Recently viewed the company recruitment information (Android position),

When working with databases in bulk, we often use transactions. A transaction is a unit of data that accesses and potentially updates the various data items of a database, and is the basic unit of recovery and concurrency control.A transaction has

When it comes to cache storage, processing read-write files, you have to say mappedbytebuffer.Read a lot of articles later write their own summary.Here first introduce the related classes and methods.Let's first talk about the relationships between

When we install an app, we basically have a guide page, they can advertise, or introduce new features to join and use instructions.Generally support sliding and there are a few points below, showing how many pages and the current picture location,

android:layout_width= "Match_parent"Android:layout_height= "2dip " android:background= "#FF909090"Android:layout_marginleft= "40dip" android:layout_marginright= "40dip"Android:layout_margintop = "10dip" />Reprint

Chapter Content 1th section File Explorer Operations 2nd Section Sharedpreferences Section 3rd ordinary file operation 4th section SD card read and write operation This chapter aims Master of Skills

We all know that the use of clusters in iOS is very common, such as NSNumber , and NSString NSArray so on, are Clusters. For NSNumber example, for int,bool, unsigned int, and so on, how do we encapsulate them in the form of a class? In general, we