Mobile Develop

Before explaining the Android data Source component--contentprovider, I felt it was necessary to figure out the Android data structure first.Data and programs are the two core elements of an application, and data storage is always one of the most

Mobile network standard Common sense:Mobile phone name has GSM: said only support China Unicom or mobile 2G segment (130, 131, 132, 134, 135, 136, 137, 138, 139, 145, 147, 150, 151, 152, 155, 156, 157, 158, 159, 182, 185, 186, 187, 188)Mobile phone

1, Drawable→bitmappublic static Bitmap Drawabletobitmap (drawable drawable) {Bitmap Bitmap = Bitmap.createbitmap ( Drawable.getintrinsicwidth (), Drawable.getintrinsicheight (), drawable.getopacity ()! = Pixelformat.opaque?

If there are mistakes please do not hesitate to make bricks, reproduced please indicate the source, thank you Desktop note Software is one of the most frequently used software on Android, such as the earlier Sticky Note, which was

Android development, there is a love and hate method called Findviewbyid (int); I think if you are a people Android developer, you must know this method.So why is it that people love and hate? Presumably everyone is also very touched.Write a layout,

Background: The hypothesis has two activity, Activity1 and Activity2, 1 jump to 2, if you want to exit the program in 2, the general online is more common saying is to useSystem.exit (0)OrAndroid.os.Process.killProcess (Android.os.Process.myPid

When referring to the *.jar file, the error "unable to resolve superclass ... ”"Just started to get this issue after upgrading to ADT 17.discovered that external. jar files need to is in a ' libs ' (with an S) folder otherwise their classes is not

Cygwin is a UNIX-like simulation environment that runs on the Windows platform and is a free software developed by Cygnussolutions Corporation. Cygwin is a collection of many free software, and the main purpose of Cygwin is to re-compile the

+-------------------------+If you have the following questions, this article may help you. The keyboard covers the UIWebView. How to remove the keyboard by dragging UIWebView. When the keyboard appears, the content contents of the

Introduction to the GCC compilerThe GCC compiler (GNG C Compiler) is an ANSI C-compliant compilation system in the GNU project, capable of compiling programs written in C C + + Object C, while GCC is also a cross compiler, especially for embedded

Reprint Please specify source: http://blog.csdn.net/xiexh0921/article/details/7513628 ############################################## Objective: To implement socket communication between the local C program and APK. Principle: There is no network

This article is a piece of my "iOS development Daily Small Notes" series, which is recorded in the development work today, can be explained with a short article or a small demo demo small tips. The classification of the article, the content of the

The dynamic nature of the Ruby language makes it simply not enough to learn rails simply by looking up the relevant API documentation, because the API documentation only records the methods of static code definitions, and many of the methods in

Introduction to 1.APT Tools:Apt is an eclipse plugin that enables real-time monitoring of CPU and memory data curves for multiple applications on Android phones, as well as the ability to automatically capture memory snapshots, Pmap file analysis,

I. Basic points of knowledge1. Transfer data between activity1) Pass basic type or stringIntent.putextra ("username", username);Getintent ();Intent.getstringextra ("username");2) transmission in the form of bundlesBundle bundle = new bundle ();

Notice of the use of the online has a variety of summary, CSDN also have a lot of summary is very in place, do not do the summary of repetition, the need for students can search by themselves or refer to the link given below. began to study

Basic knowledgeQVGA 240*320 pixels |VGA 640*480 pixels |WVGA 800*480 pixels |HVGA 480*320 pixels |See that a lot of people don't understand the difference between DP, SP, and PX: Now let's introduce the DP and SP.DP is also dip. This is basically

The development of the game introduction project was completed some time ago. It is used in bulk packaging. is not submitted on the net market, but by setting manifest in the meta_data> to get the relevant parameters, game ID number change, game ID

What is makefile?The role of Makefile:1, the project document organization, compiles the complex procedure2. Install and uninstall our programMakefile Use ExampleThe following three files are available in the/home/username/makefile

Grand Central Dispatch (GCD) is a solution for multi-core programming developed by Apple.The dispatch queue is divided into the following three types:1) Run the main queue in the main thread, obtained through Dispatch_get_main_queue./* !* @function