Android. OS. NetworkOnMainThreadException the real machine cannot receive server data

Problem description: Server JSP, client android. After the server is released, the client can debug and receive the data sent from the server on the simulator, but the real machine cannot receive the data. An exception is reported: android. OS.

Java and Android File Operations

File: This is a File base class that abstracts a File object. It has four different constructor methods: File (File dir, String name)File (String path)File (String dirPath, String name)File (URI uri)The essence of these constructor methods is to

How can individual developers create a free and high-performance app server?

In early January this year, I started to think about it. I am a pure android client programmer, but I want to develop a mobile small bbs forum application by myself. What should I do if I have no server? What if there is no database? What should I

Differences between android setCompoundDrawables and setCompoundDrawablesWithIntrinsicBounds

You can use the following methods to manually set the relative position of text and image: SetCompoundDrawables (left, top, right, bottom) SetCompoundDrawablesWithIntrinsicBounds (left, top, right, bottom) Set the left, top, right, and bottom

Playing GIF Animation 2 in android

In the previous article, the code is used to input the id of the GIF animation to be played through the constructor. This article is further transformed to allow GifView to set the src attribute in the layout file like ImageView. In GifView, we use

[Android] Discuss Handler mechanism from source code

Let's take a look at a piece of code: Thread thread = new Thread () {public void run () {// send a Message to the main Thread in the Child thread Message msg = new Message (); msg. what = 200; msg. obj = param; msg. arg1 = 3; handler. sendMessage

The Android App only supports horizontal screen switching or vertical screen switching.

In tablet development, only the horizontal screen switching function is required, and the default activity of the system has the horizontal and vertical screen switching function. How can this problem be achieved? In fact, it is very simple. You

Android service (medium)

Bound service Before a service is bound to an activity, the activity only allows the service to work, but the service cannot return data to the activity. So here we will introduce the bound service. Boundservice or service, so you need to configure

Onvif Protocol and Its Implementation in Android

I haven't written a blog for a long time. Today I will share with you the IMPLEMENTATION OF THE Onvif protocol on Android. First, let's take a look at what the Onvif protocol is: The ONVIF protocol is an Open industry standard developed by Open

Android hardware acceleration problems and errors

The program recently encountered some strange problems: the source is unknown, and only a problem occurs for a specific model. If you have met, consider whether or notHardware acceleration(Hardware Acceleration) Error Since Android3.0 (API level 11),

Several small feature of android browser (2) shaking around to control the forward and backward of the webpage

######################################## #####This article is original to extreme cold ice, for reprint, please specify the source #################################### ######### This is inspired by the current variety of shakes. We also use this new

Learning Journey Based on Android NDK-Environment Construction

1. Build an Android Development Environment 1) download JDK 2) download Eclipse 3) download the Android SDK 4) Start Eclipse and install ADT    2. Download and install Android NDK      3. Download and install cygwin   Since make and gcc must be used

Android Development Notes: SQLite import and export data

SQLite is the most convenient database in Android. Now let's take a look at how to quickly import and export data in SQLite. First, because. NET project to Android, the original database uses SQLSERVER, because the same part of the project structure

Use 802.11n acceleration to project the android mobile phone screen to Windows 7

It should be clear that VNC has been used for remote access from different systems on the PC. VNC includes two parts: client (Viewer) and Server (Server. Droid VNC is the server with VNC installed on the Anroid mobile phone. You only need to install

How does Android verify whether the APN is successfully added?

    After being added to alpsmediatekrameworksase elephonyetcapn-config.xml,  The SIM card of the carrier is not required for verification. Two methods are used to verify whether the APN has been added to the mobile phone: 1. Your company only

Automatic batch build of multiple android lib library projects-Jenkins practice

In the above section, we have finished building the Jenkin environment. Next we will start to practice this automatic build system.Jenkins defines a set of building processes, and the building details need to be written. Some scripting languages are

Android code optimization tool-Android lint

  As a mobile app developer, we always hope that the smaller the apk file to be released, the better. We do not want image resources that are not used by resource files to be packaged into the apk, lint can solve these problems if you do not want

Sencha Touch Charts displays data in the mobile phone image chart component

Mobile phoneAndroid applicationsFramework and tool suppliersSenchaReleasedSencha Touch ChartsChart component. The Beta version is available on a mobile phone.Android applicationsDevelopers can use this tool to embed data into HTML5 Web applications

Android app: a practical and interesting companion toilet app

Android applicationsMediumCrouching joyA practical and interesting companion toilet application. I recommend a companion toilet application for you:Crouching joy. It will make you happy when you go to the bathroom.Crouching joyCurrently onlyAndroid

Spott: Discover wonderful movies and TV programs

SpottApplication inIOS appAndAndroid applicationsOne of the coolest parts of modern smart phones is that they can connect to the Internet and locate chips online. application developers develop a lot of apps to show interesting things and unique

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