Mobile Develop

Android is a Linux-based operating system, the underlying Linux kernel layer (Linux2.6, Linux3.4 and so on), Android uses the Linux operating system's kernel and driver, which drives part of the Linux device driver, Android also added a dedicated

Build an Android development environment:Android low-level development requires Android apps and Android NDK programs to test Linux drivers, so you need to configure the development environment for driving development environments, Android apps, and

First look at the four-tier architecture of the iOS system1. Core OS cores OS Layer2. Core Services Tier3. Media Layer4. Cocoa Touch LayerMedia layer is to support multimedia playbackiOS9 after the official recommended use of Avkit and avfoundtion

The first way: UIImage *image = [UIImage imagenamed:@ "image"];In this way, the first time you read, the image is stored in the cache, the next time it is used to read directly from the cache; advantages: Only the first time to use a little slower,

The HTML data in LoadData () cannot contain ' # ', '% ', ' \ ', '? ' Four special characters, the occurrence of this character will cause a parsing error, showing that the page is not found and some HTML code. What do you need to do with it? We need

Original: Http://developer.android.com/tools/debugging/ddms.html#how-ddms-worksAndroid provides a debug tool called: DDMS, which provides port forwarding services, device screenshots, device thread and heap information, logs, processes, analog phone

Preface: This essay is purely referring to the "IOS use FFmpeg" process, I operated it once, but I have a bad memory, I think this process can be recorded in the blog, after the need to quickly back to the details. So specifically refer to "IOS

1. Open the Excel table and save as a. csv file2. Open SQLite3, select File, Import, other ...3. Select the. cvs file that you saved in step 1 in the file selection box that pops up4 in the Pop-up dialog box, select File format as custom delimited,

Android First step: Install JDK.To download the Oracle Company's JDK, Baidu "JDK" can enter Oracle's JDK download page and select the corresponding version of its own computer system.Step Two: Configure the variable environment for the JDK on

Remember before the study of a teacher said we often use the size unit for DP and SP, and these two units what difference in today's study and I encountered. In the code described in the book, repeated occurrences are more dp,px. So, I would like to

Building a development environment requires tools such as JDK, Eclipse, Android, SDK, ADT, AVD.in the constructionAndroidbefore you develop your environment, you should first understandAndroidrequirements for the operating system:Androidcan run

The "Type conversion infrastructure service" for an interface-oriented extensible framework is what I think is the most important component beyond the core containerBut in front of the blog, a lot of controversy, so I wrote a type of transformation

When creating a new project in Androidstudio, in the layout file, there are sometimes the following situations:　　The above title bar is very annoying, in order to hide the title bar, you can configure in the theme tag of the manifest file, customize

Add a condition to a breakpoint- (void) testcondition2{Nsarray*array = @[@"we are",@"together",@"come to",@"Play",@"abc123"]; Nsinteger I= Arc4random ()%Array.count; NSString*str =Array[i]; NSLog (@"%zd,%@", I, str); NSLog (@"%zd,%@", I,

In Jeff's map animation, he also used a combination of all position, transparency, and scale animations. The initial panel is slightly smaller and less transparent, so it fades well into the background of the application. The map panel

The Andrioid compilation system is your toolbox for Build,test,runapp. The running of the compiled system can be done through the menu of Android Studio or a separate command line. By compiling the features of the system you can do the following

Tag: location. If you want an object to move on the screen, you just need to manipulate its position. Moving one to the bottom of the screen means that you are increasing its Y-coordinate, because (x:0, y:0) represents the upper-left corner of

I. Configuring the relevant environment1, install JDK Jdk-7u79-windows-x64.exe (should be 64-bit Server VM version, if not need to swap otherwise eclipse does not start up)Configuring Environment variables2, install Node,node-v4.2.4-x64.msi3,

This blog is mainly about the animation XML parameters before the 3.0 property animation1 Alpha Gradient Transparency animation effectXML version= "1.0" encoding= "Utf-8"?>Setxmlns:android= "Http://schemas.android.com/apk/res/android" >

What is a process　　A process is a standalone (self contained) running environment, which can be thought of as a program or an Application.What is a thread　　While threads are a task that executes in a process, the Java Runtime Environment is a single