Mobile Develop

There are two ways to identify activity when an interface jumps:The first, by nameThe second way, throughConfigure in configuration files for communication between activityAndroidmanifest.xml:Testactivity:Intent Intent = new Intent

We want to design and implement a chat room function of the app, need the server constantly read information from the client, and immediately send the information to each client connected to the server, each client can send messages to the server,

ButterknifeThis open source library can let us from a large number of Findviewbyid () and Setonclicktlistener (), its impact on performance is very small (see Butter knife Source code, The implementation of its custom annotations is limited to

First, to understand several related classes 1, nsnotificationThis class can be understood as a message object with three member variables.This member variable is a unique identifier for this message object and is used to identify the message object.

1, the string written in the layout file, organized into String.xml1, such as the following layout files, generally write the layout of the file when the string is directly written into the inside, and then sorted into the String.xml: TextView

1. Write module, as libraryHere is the AAR package that needs to be published, which is the random project2.app Dependent mylibrary2.1 Setting up Project Structure2.2 App relies on modules2.3 Results3. Use a random method in the module.4. Key steps--

1. New module2. Use as a library3. Write something in this library that needs to be independent.4. Recompile the project5. Switch to project mode to view the AAR package, build successfully ~6. Refer to the method, switch to project mode, and place

Activity mainly has the following seven callback methods:1, OnCreate ()Called when the activity is first created.2, OnStart ()Called when the activity becomes visible from invisible.3, Onresume ()Called after the activity is ready, the activity must

1. Use viewport to disable zooming of the page. Usually the user-scalable is set to zero to close the user's behavior on page view scaling.Complete viewport setting, of course, user-scalable=0, some people also write user-scalable=no, can.name=

Basic concept of activityActivity represents the active window, and the content is displayed through the context loading page, and each activity must be registered in the manifest.xml.An application consists of multiple interfaces, fallback stack,

1. Define an XML with a normal rounded background;Rounded_corners.xml android:shape= "Rectangle" > 2. The water ripple effect of the XML ripple_bg.xml: Android:color= "#FF21272B" > 3 Use it in the layout XML

12Android:layout_width= "Match_parent"3android:layout_height= "Match_parent"4android:orientation= "Vertical" >5 6Button7Android:layout_width= "Match_parent"8android:layout_height= "Wrap_content"9android:onclick= "Datepickerdialog"Tenandroid:text=

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1 Public classMainactivityextendsActivity {2 3 @Override4 protected voidonCreate (Bundle savedinstancestate) {5 Super. OnCreate (savedinstancestate);6 Setcontentview (r.layout.activity_main);7 8 }9 Ten LongStartTime; One A

I. Examples of mutually exclusive needsIn a multithreaded environment, no matter which function method can be executed concurrently in multiple threads. However, when using shared variables, or when performing file output or drawing drawings, the

Simpleadapter is the best extensibility adapter that can define the various layouts you want.Construction Method: Simpleadapter (context context, list> data, int resource, string[] from, int[ ] to)　　The context of the parameter: the contexts, such

iOS Special SummaryAfter an application has been iterated over many iterations, what else can we do technically? The answer is to improve the overall quality of the code. In this respect, testing is also very important in addition to the refactoring

These days updated IOS10, found that the real machine can not debug, pop a few errors, indicating no certificate. With iOS9 's true function commissioning,He's a real hole, sum up the solution.In Buildsetting's Signing, the code Signing identity

Because of the interest in H5, so when it's okay to read some articles blog.Don't say much nonsense, first introduce the problem,About the adaptation of a mobile screen do you have anything to say?First I have been using this REM scaling method to

Some of the tool software required:1. JDK Website: http://www.oracle.com/ttechnetwork/java/javase/downloads/index.html2. Android SDK Website: http://developer.android.com/sdk/index.html3. Android NDK Website: