Android

The preferencescreen in the setting can be displayed on the setting interface and the activity can be started. The following describes how to start the activity.1. Start activity in preferencescreen For example, wireless_setting.xml contains the

Display webpage: 1. Uri uri = URI. parse ("http://www.google.com ");2. Intent it = new intent (intent. action_view, Uri );3. startactivity (it ); Display map: 1. Uri uri = URI. parse ("Geo: 38.899533,-77.036476 ");2. Intent it = new intent

The following are all converted from the android game programming entry-level classic. For details, refer to the source. game programming must not only use mobile phone memory but also access external storage space, mainly access the SD card. Read

In Android development, sometimes we want to obtain some hardware information about the mobile phone, such as the total memory and available memory size of the Android phone. How can this be implemented?By reading the "/proc/meminfo" file, you can

When running an android project, the simulator always displays [17:10:10-bus1] Installation failed due to invalid APK file! [17:10:10-bus1] Please check logcat output for more details. [17:10:10-bus1] Launch canceled! However, it works normally when

Recently, the company's Android project needs to use cameras for barcode or QR code scanning. Google to find an open-sourceZxing project. It provides scanning of QR codes and bar codes. Scanning a barcode is to directly read the content of the

The new Android 1.5 early look SDK is out since a few weeks. the "android 1.5 highlights" page does not mention one highlight, which IMHO will become very important for all developers on the Android platform because it allows you to find memory

An snd_kcontrol was analyzed yesterday. It can be considered that the upper-layer application uses the name to identify the name to traverse the underlying snd_kcontrol linked list and find the matched kcontrol. See snd_ctl_find_id Function /** *

Reference article: http://401389373.qzone.qq.com /#! Keywords: Android desktop shortcut plug-in Platform: s5pc110 s5pv210 System: android2.3 android2.3.4 1. Mainly changed the file android2.3.4 _ gb_t34h \ packages \ apps \ launcher2 \ res \ XML \

Source code is toolio. cpp in the flying project (http://code.google.com/p/flying-on-android/) This program mainly demonstrates how to redirect stdout and stderr of a program. Processes started by the system in Android, stdout and stderr are

1. Open/closed (OCP) Introduction: to scale, do not modify it. For example, I provide an external interface. If you want to update the API, do not modify it directly. Instead, provide another API and notify you when to switch to the new API. For

Create Android. mk CMD-strip = $ (toolchain_prefix) strip -- strip-debug-x $1   Local_cflags + =-fvisibility = hidden-fexceptions-fno-exceptions-dunrar-C-d_file_offset_bits = 64-d_largefile_source   Local_arm_mode: = arm Local_module: = unrar

  Android memory management is slightly different from Linux. One of them is the introduction of low memory killer.   1. Reason for introduction Android is a multitasking system, that is, it can run multiple programs at the same time, which should

Different types of surface in applications correspond to different layer classes in the surfaceflinger of the local layer of frameworks. This article mainly discusses the implementation and differences of these layers. Before reading this article,

Bytes ------------------------------------------------------------------------------------------------------------------------ U-bootEmmc devices can be burned in two ways: FastbootCommand: Use the USB interface to burn and write data. Steps: 1.

Network applications are mainly used for searching, Browsing webpages, sending emails, and sending MMS. For Android, some intermediate processes involved in these applications mainly involve WebKit, WAP, SMTP and other protocols, socket

Android supports Playing videos on the network. When playing a video on the network, it involves video stream transmission. there are usually two Protocols: HTTP and RTSP. This The biggest difference between the two Protocols is that HTTP does not

Blog migration-I have migrated my blog to www.ijavaboy.com to better manage it. We are sorry for the inconvenience caused by no updates! New address of this article: Click me Celllayout is designed to store controls of different sizes. To better

The compiled environment is Ubuntu 12.04. To install Java and configure environment variables, configure them according to http://wiki.videolan.org/androidcompile. export JAVA_HOME=/home/sunlit/jdk1.6.0_38/export PATH=$JAVA_HOME/bin:$PATHexport

  By default, there is no market in the android simulator, so by default, there is no way to download rich software from the market in the simulator. So we need to find a method to install it on the simulator.   First, prepare three market-related