Mobile Develop

In the previous blog, "Build Android ORM Framework Opendroid (iii)--persistent data", we feel the flow of opendroid to save the data, today's blog Let's take a look at opendroid how to delete data.Remember when we introduced the use of opendroid in

1, Sharedpreferences is the most easily understood data storage technology in Android, in fact sharedpreferences processing is a key-value (key value pair). Sharedpreferences is often used to store some lightweight datapublic void Setsharevalue ()

All along, Android support for Bluetooth is very confusing, can be said to be a lump of shit. Each version of the protocol stack is different, the earliest use of BlueZ, into the 4.x era, replaced by Google's own bluedroid. Change it, at least wait

Use reasonIn the development of iOS, we will encounter the case that the program throws an abnormal exit, and if it is in the process of debugging, the information of the exception is clear at a glance, but it is sometimes difficult to get the

Mobile Game Development Engineer Training TutorialI share a system of learning hand-tour development of the course, you can complete the study of hand-tour development, and supporting a number of enterprise real-combat projectsConsulting qq:779591710

First, object-orientedOC language is object-oriented, the C language is process-oriented, object-oriented and process-oriented are just two ways to solve the problem, the process is concerned with the steps involved in solving the problem,

We know UIWindow inherit from UIView, so uiwindow in addition to have all the functions of uiview, there are some unique property methods, the most common is that the program just started, call UIWindow makekeyandvisible make the whole program

There are a number of ways to implement a feature, but what we're looking for is the one that works best for your project.Like the app to determine the state of the network, if every time when using the network to determine the network status, some

A: Introduction to JSONJSON refers to JavaScript Object notation, a lightweight text data interchange format, similar to XML, but smaller, faster, and easier to parse than XMLTwo: The comparison between JSON and XML (copy online)Advantages:simpler

Recently in the exploration of Android source code and ROM, was fortunate to buy a book with online to see some of the tutorial, first do some notes, in case of a rainy days ...1. Learn about Git and repo2. Environment configurationThe first is

Can shake the song, according to the voice to recognize the song, and then return to the song information, the use of HTML5 deviceorientation features and Devicemotion events can also be implemented on the Web app similar to shake the function, the

In Android development, we often need to pop up some dialog boxes on the Android interface, such as asking the user or letting the user choose. These features we call it Android Dialog dialog, in the course of our use of Android, I summed up, the

Client ip:192.168.1.11Service-Side ip:192.168.1.12Purpose: To check the existence of the Java process for EIP usersClient ConfigurationScript Name: check_pid.shThe script is as follows:#! /bin/bashSi= ' Ps-ef|grep java|grep eip|wc-l 'If [$si-eq

Today, the teacher published an article about the Android5.0 button Press ripple effect realization of "Android l water Ripple Click effect Realization", out of curiosity i downloaded the source code to see the effect, just have a Nexus mobile phone,

(1) Create a ListView in the layout file: (1) The Main.xml file in the Res--menu directory: (3) String.xml file: (4) class file:Package Com.example.menu_contextualmenu;import Java.util.arraylist;import

First, why should we care about the UI?If an application has a good experience with it, then:1. The better the quality of the software the user perceives2. Will give you a higher rating3. The software will have a better ranking4. More people to buy

You can use the Eclipse plugin Ddms to view it in Android, or you can use the ADB tool in the Android Toolkit. The SQLite database in the Android project is located in the/data/data/ project package /databases.Use DDMS to export the SQLite database.1

With intent, there are two ways to deliver Java objects between activity in an Android project: One passed object implements the serializable interface, and the other is the Parcelable interface that the passed object implements. This blog

In Android development, the database is indispensable. In Android development, a small embedded database is used, sqllite. Today will write two articles about the development of the database in the Android development environment, the first one

When Close is a main form, the program exits.Close will occur Formclose event, Formclosequery eventThe Formdestory event will occur in Halt,None of the above three events will occur application.terminateApplication.terminate is the end of the