Android

About the edittext focus and keyboard in Android: Usually in a layout, set the focus mode for edittext as follows. After the activity is started, the focus is automatically positioned to the first edittext and the keyboard automatically pops up.

Drawing operations not supported by hardware acceleration During hardware acceleration, the 2D rendering pipeline supports most of the drawing operations that are usually used for canvas and some rarely used operations. Used for rendering

Translated from:Http://developer.android.com/guide/topics/connectivity/sip.html Android provides APIs that support the Session Initiation Protocol (SIP. This allows you to add the SIP-based Internet phone function to your application.Program.

Recently, both listview and button have to change the background of the original Android control. I found some information on the Internet, so I will summarize the usage of Android selector.First, the android selector is configured in drawable/xxx.

Introduction: Reprinted please indicate from: http://blog.csdn.net/icyfox_bupt/article/details/9572813 Android software development requires dealing with data on the network. To make the software that users love, we need to find every way to

This article analyzes the startup of the Linux-Android system. The following article focuses on the analysis of the functions before start_kernel () is called during Linux Startup, at the same time, I also gave an overview of the Code flow after the

Android WiFi Port Two Wi-Fi modules, vt6656 and rt2070, were transplanted on Android 2.2. First, compile the WiFi Linux driver into a module and put the driver (vntwusb. Ko or rt3070sta. KO in/system/lib/modules. Then, make the following changes:

Link: http://developer.android.com/tools/help/adb.html # Android debug bridge (ADB) is a versatile command line tool that connects you to an android simulator or a real Android device, is a client-server-mode application, which includes the

Save a media file Media files such as images and videos created by users should be stored in the external storage directory (SD card) of the device to save system space, and allow users to access these files outside of the device. There are many

The Android system runs on the Linux kernel. Android and Linux have their own strict security and permission mechanisms,Many new users like me, especially those who are used to low security restrictions on Windows, are easily confused in this regard.

Analyze the recovery process and start with analyzing the upgrade package.The upgrade package can be generated by the make otapackage command, which is generated by makefile and the packaging script (Python.The generation rules are complex,

In this example and the following examples, we will take a step-by-step approach to discuss all aspects of Android program design, and demonstrate how to design and develop Android applications in an example;This example describes the resource file

Today, we have summarized the common hidden code on Android phones and provided a reference to our friends who love Android phones. Note that the following code should be used with caution, because some code may cause the mobile phone to lose its

This series of articles will start the android lancher source code analysis. The example is the launcher3 source code that comes with Android 2.3. Its: http://download.csdn.net/detail/xianming01/4383598 This is the first article to introduce lancher'

This week, we started the simeiji automated test on the mobile phone input method and started the automated test on mobile browsers. Next, we will conduct a special study on Android automated testing tools and methods. The first section describes

Ant is a sub-project of Apache's Java sub-project "Jakarta". You can select the current version, window version After decompression, ant_home is used for convenient access. Make sure that you have set java_home.Set ant_home = D: \ Java \ kit \ ant \

In this article "VLC Android compilation and recording video functions", I found the Android version using VLC, but the video recording function is incorrect. Its video recording method cannot be well controlled for the start and end recording of

Some friends may dynamically modify the value in the strings. xml file in Android. Here we recommend a simple method.Nodes in strings. XML support placeholders, as shown below: INTEGER: % 1 $ D, floating point: % 2 $. 2f, string: % 3 $ S Here, %

Address: http://developer.android.com/tools/testing/testing_accessibility.html Testing is an important part of making your applications available to people with various obstacles. It is an important step to develop with reference to design and

Recently, we have cut the image and set the background color to transparent in developing spliced images. Here we will share the implementation method. First, to ensure that the color is transparent after being removed, the image quality must be