Mobile Develop

In the Res directory, under the menu folder, create a Main.xml file with the following contents:XML version= "1.0" encoding= "Utf-8"?>Menuxmlns:android= "Http://schemas.android.com/apk/res/android"> ItemAndroid:id= "@+id/add_item"Android:title=

1. Open Terminal2. Remove the existing Ruby default source$ gem Sources--remove https://rubygems.org/3. Use the new source$ gem sources-a https://ruby.taobao.org/4. Verify that the Xinyuan is replaced successfully$ gem sources-lAfter success appears:

Open source Android Player: Dolphin player Simple analysisDolphin player (Dolphin player) is an open source audio and video player that supports most audio and video file modes and most subtitle file formats. It is based on the ffmpeg.Project home:

1. For the string "2015-09-01 08:19:10" operation, output "08:19:10". Two methods of interception are required.2. Access the following data in the array:@[@{@ "name": @ "Chenfong" @ "Age": @ "32"},@{@ "name": @ "Sun Ming" @ "age": @ "24"},@{@ "name":

Automated test methods for Native app and web AppIntroduction to common tools for Android Automation testingRobotiumAndroid's instrumentation mechanismRobotium environment Construction and basic use methodRobotium use of basic APIsBuilding test

Several ways that iOS cleans up the cache,-(Long Long) Filesizeatpath: (nsstring*) filepath{nsfilemanager* manager = [Nsfilemanager Defaultmanager];if ([manager Fileexistsatpath:filepath]) {return [[Manager Attributesofitematpath:filepath Error:nil]

The code to clean up the cache is as follows:Dispatch_async (Dispatch_get_global_queue (dispatch_queue_priority_default, 0), ^{NSString *cachpath = [Nssearchpathfordirectoriesindomains (Nscachesdirectory,nsuserdomainmask, YES) objectAtIndex:0]

When we write the program, the width of the screen is not fixed, such as writing 320,480, because we want to adapt to different mobile phones. One common way is to set the width height in the. pch file, because the. pch is a precompiled file that

Code:#importintMainintargcConst Char*argv[]) {@autoreleasepool {//1. For the string "2015-09-01 08:19:10" operation, output "08:19:10". Two methods of interception are required. NSString *time=@"2015-09-01 08:19:10"; NSString*str1=[time

IOS Development Click Tabbaritem Add whether Jump login page to judgeIn the project, when you click on the Tabbaritem, you need to determine whether it is logged in, if you are not logged in directly to the login page, if you are logged in directly

Welcome to follow my GitHub and follow my csdn. Introduce some of the small knowledge points that will be used frequently in Android development.1. Download folderAbsolute path/storage/emulated/0/Download/xxxTraverse

By default, most of the normal Corebluetooth tasks, whether central or peripheral, are not available in the background or in the suspended state. That is, you can perform certain Bluetooth related events by announcing that your application supports

1. Notification Center AwarenessNotification hubs are essentially a mechanism for providing message broadcasts within a program. Notification hubs cannot communicate between processes, it can only communicate within the program, and cannot

1 Reading pictures 2 conversion between drawable and bitmap2.1 drawable >> BitmapThe drawable we often refer to is just an abstract class, in which we are actually dealing with derived classes, such as bitmapdrawable (PNG images),

Need to use the offline cache to store the data in the database, when there is no network load, and iOS is the Sqlite3 database, with the native SQL we can also achieve, but it is more difficult to write, especially in other languages to the

ToggleButton (switch button) and switch (switches) explained:First, the core attributes of the explanation:(1) ToggleButtonTexton: Text is displayed when the button is selectedTextoff: Text is displayed when the button is not selected(2)

Explore the Android 9patch image1. What is "9 sister" (9patch)? It is a tool for processing PNG images, which can generate a "*.9.png" image for us;2. What is "*.9.png"?The so-called "*.9.png" This is a special image format supported by the Android

1 What is a Dalvik virtual machineDalvik is Google's own Java Virtual machine designed for android, an important part of the Android platform that supports the operation of the DEX format (Dalvik executable) java Application. The DEX format is a

join key in Info.plistNSAppTransportSecurityNSAllowsArbitraryLoadsSolve iOS9 Apple changed the original HTTP protocol to the HTTPS protocol problem

several ways to play audio on IOSThe IPhone OS mainly offers several ways to play audio: System Sound Services Avaudioplayer class Audio Queue Services OpenAL 1. System Sound ServicesSystem Sound Services is the lowest and