In-depth understanding of Android: Wi-Fi, NFC and GPS [excerpt]-Chapter 1 preparations

Thank you for your patience. This book is expected to be available in middle March. From today on, I will include some of the content of this book in my blog. Note that the original article is serialized without being edited by the publisher, so it

9 Tips for Android app developers

Last year, the number of Android applications has exceeded iOS to become the world's largest ecosystem. However, among the millions of applications, some of them have a large download volume and make a lot of money; in addition, some applications

Android Analog Oscilloscope

Zookeeper Let's take a look at the program running in this article (the screen recording speed is slow, and the real machine runs more smoothly ):     In this article, the program uses the 8000hz sampling rate, which requires a high real-time

Analysis of Android enterprise requirements and developer status

First of all, I want to clarify that recruitment and application are a process of mutual benefit. Enterprises need someone to serve their projects, and developers also want to work by themselves, to seek benefits for yourself. After both parties

Discussion on user education in mobile device Product Design

With the upgrade of mobile phone hardware, the application functions are gradually enriched, and the interaction process is becoming more complex. Therefore, whether a mobile phone application can make users shine, in addition to its successful

Introduction and Analysis of the Android mobile phone system

Some people say that the Android mobile phone system will lag behind in the next few years, but how can this cause Android to fall behind? All the code of Google baby Android has been deleted from it. This may be the only reason why it really fell

Android development basics and SDK installation (1)

Overview The development website www.android.com is in harmony, and the content on the official SDK website needs to be turned

Android: asynchronous Processing Using Handler

1. One problem There is such a problem that deserves our consideration. If we write some functions similar to the download function that is time-consuming and does not necessarily have results) in the Activity (main thread), it will cause Activity

Implementation of Airplay on Android platform

Airplay is a communication protocol for sharing multimedia data between heterogeneous devices in the LAN. Airplay devices include clients and servers. Generally, small-screen IOS devices are implemented as Airplay clients and large-screen devices

Obtain and compile the Android source code in ubuntu 11.04

  In the past two days, we have started to prepare the source code compilation. In this case, we will record the process so that we can easily back up the source code and hope it will be helpful to the later users. Attention: the environment in this

[Android game development 27] describes the hdpi, mdpi, and ldpi resource folders under game development and projects.

  [Android game development] explains the hdpi, mdpi, and ldpi resource folders under game development and projects, as well as the game HD version settings. Today, a developer asks me why I want to delete the hdpi under the game development project.

Details about non-UI threads in Android that cannot operate UI threads

  In Android development, non-UI threads cannot operate controls in the UI thread, that is, the UI is non-thread-safe. As I said in the previous article: It is non-UI secure, that is, it does not accept modification requests from non-UI threads.

Android phone call Program Implementation

  Today, we use Android to write a small program that enables calls. First, create an Android project Phone and modify the String. xml in Values in Layout. The Code is as follows: Hello World, PhoneActivity! Phone   enter the number you want

Android (OpenCV) NDK development: 0 xdeadbaad (code = 1) error and disable armeabi and libn

1. After OpenCV is transplanted to android, an error occurs during development: android fatal signal 11 (SIGSEGV) at 0 xdeadbaad (code = 1 ). some people say that AsyncTask is used in the program. It happens that it is actually used in my program.

Ocr solution (tesseract) in android)

There are roughly two ocr solutions for android applications, and the most popular one is tesseract. Here I will write down my solutions for the last two days. If you have any defects, please click here:There are two solutions. One is to use

Android RoboGuice User Guide (6): Instance Bindings

In the previous example, Android RoboGuice User Guide (4): Linked Bindings defines a constructor without parameters when defining MyRectangle and MySquare, for example, MyRectangle: [Java] public class MyRectangle extends Rectangle {Public

Android NFC development tutorial (1): overview

Near Field Communication (NFC) is a short-distance wireless Communication technology. Generally, the effective Communication distance is less than 4 cm. The NFC operating frequency is 13.65 MHz, and the communication rate is 106 kbit/s to 848 kbit/s.

Android intermediate course ---- Log graphic explanation (Log. v, Log. d, Log. I, Log. w, Log. e )!

In the Android group, people often ask me how to use the Android Log. Today, I am trying to get everything from the Internet and the SDK, so that everyone can get started quickly, we hope to help you get started with Android Log. Common android.

[Andorid Application Development]-(2) Linux and Windows Development Environment Configuration

This article describes how to configure the Android Application development environment. There are two types of Android development environments: Windows development, Linux development, and IOS development. This section describes how to configure

Android source code [source code] download, Problems and Solutions

My environments: Ubuntu 11.04Android source code: Android-4.1.1.1_r4How to download the Android source code?Referenced from: http://source.android.com/source/downloading.htmlBut maybe you will get internal error as below, you just need the constancy

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