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Android audio and video goes deep into thirteen OpenSL ES to create a music player, which can pause and adjust the volume (with source code download), androidopensl Project addressHttps://github.com/979451341/OpenSLAudioOpenSL ES is a public audio API developed based on NDK, that is, the underlying C language. It can be used to achieve standardized, high-performance, and low-response-time audio functions.Th

, dalivk, bionic, prebuild, and build. The purpose of Repo is to manage these projects in a unified manner and simplify the use of git. 3. Curl Curl is a File Transfer tool that uses the URL syntax in command line mode. Here we use it to obtain the repo script. Ii. Steps for downloading source code 1. Environment Introduction: First, introduce my environment: in Windows 7, use vmare 7.1 to virtualize the ubuntu10.4.2 System (of course, the U

code can be compiled smoothly, but due to the rolling upgrade feature of Arch Linux, the high version of the GNU make has been able to correctly use the wrong rule. Causes a compile break. You need chipram/Makefile to change the method, such as the followingDiff--git A/makefile B/makefileindex3017572..A32df100644---a/makefile+++ b/makefile@@- the,7+ the,7 @@ $(Splobjdir)%.O:$(Srctree)/nand_spl/%.C$(CC)$(CF

= new file (Sddir, "pb.txt"); InputStream is = null;try {//Determine if file exists if (pbfile.exists ()) {is = new FileInputStream (Pbfile);}} catch (FileNotFoundException e) {//TODO auto-generated catch Blocke.printstacktrace ();} if (is! = null) {String value = Streamtools.streamtostr (IS); string[] arr = Value.split (";"); Progressbar.setmax (Integer.valueof (arr[0]));//Max currentprogress = integer.valueof (arr[1]);// Current value progressbar.s

Detailed explanation of the disk cache of the image download framework UniversialImageLoader for Android (1 ), The monkeys who have been immersed in the development world of Android for some years are probably able to deeply understand that downloading, displaying, and caching images in Android has always been hard to

value after clicking on an item in the pop-up list of prompts, the return value will be displayed in the text box * * @Override public charsequence converttostring (Cursor curso R) {return cursor.getstring (Cursor.getcolumnindex (Queryfield)); } public DBHelper GetdbhelpeR () {if (DBHelper = null) {DBHelper = new DBHelper (this.context); return dbhelper; } } 3. Final definition View 4. Associating view and adapter in activity @Override public void OnCreate (Bundle

Android RakNet Series 7-thread and server statistical test, androidraknetIntroduction A thread is a single sequential control flow in a program. A relatively independent and schedulable execution unit in a process is the basic unit for Independent System Scheduling and CPU allocation, which refers to the scheduling unit of the running program. It is called multithreading. The thread is re-encapsulated in Ra

BigDecimal (1024 *1024);Float returnvalue = filesize.divide (megabyte,2, bigdecimal.round_up). Floatvalue (); Text1.settext (returnvalue +"M");//Convert bytes to m BigDecimal filesize1 =NewBigDecimal (total); BigDecimal megabyte1 =New BigDecimal (1024 *1024);float returnValue1 = Filesize1.divide (megabyte1,2, bigdecimal.round_up). Floatvalue (); Text2.settext (returnValue1 +"M"); } @OverridePublicvoid Onsuccess (responseinfoARG0) {// TODO auto-generated method stub Toast.maketext ( Mainactivity

,LEDthe voltage difference is generated at both ends,LEDThe current passes and glows, whereas whenGPIOWhen the port is high,LEDno current is passed in theLEDwill go off. Switching between high and low levels is very fast, soLEDthere must be a-a delay between the lights, otherwise the human eye cannot captureLEDthe changes. * Control of L E D requires 3 registers. The completion of these 3 registers is G P M C O N(Port configuration register ) Gpmdat(port data register) and gpmpud (Port pull-up

1, the background of the network film request, is one of our most common network requests, no less than the request for json/xml data. Generally to show to the user to see, are not pure text, often are graphic information. In the era of mobile internet, graphics and text often need the latest information, data are obtained from the network.As we all use, it's a lot of friends in the circle of information, the use of Sina Weibo, the user's icon is also picture information, and so on and so on. Th

Android get network speed and download speed The display of network speed is often used in Android applications, especially when files are downloaded and videos are buffered. Today, I have encountered the need to display the network speed during video playback, using the TrafficStats class. For more information, see the use of the TrafficStats class in

One of the Android multithreaded analysis: Download images asynchronously using threadRoche (Http://blog.csdn.net/kesalin)CC License. Reprint please indicate the sourcePlan to get an understanding of multithreading-related knowledge in the Android Framework. The main focus in the Framework layer of thread, Handler, Looper, MessageQueue, message, Aysnctask, of cou

: public class Mygallery extends Gallery {Boolean isfirst = false; Boolean islast = false; Public Mygallery {Super (context); Public Mygallery (context, AttributeSet Paramattributeset) {Super (context, paramattributeset); /** slide to the left (true-slide to the left; false-right)/private Boolean Isscrollingleft (Motionevent E1, motionevent E2) {Retur n E2.getx () > E1.getx (); @Override public boolean onfling (Motionevent E1, motionevent E2, float Distancex, float distancey) {image

First, download adbwirelessAddress: http://sj.zol.com.cn/detail/41/40834.shtmlRoot privileges are required for installation.Transport adbwireless. The interface is simple, just a big button. Click the button to turn it green, indicating that it is running. You can start the connection on the PC side.Each machine will be different, the above picture is: ADB connect 192.168.1.106:5555Second, wireless connection mobile phoneUnder the Win7 Start menu, sel

1. Achieve the effect: Dynamic display of progress (showing the entire dynamic change process, and then complete, pop up a dialog box)2. Implementation process: Can be divided into three parts of drawing a circle, arc and text, and then in the mainacitivity through the thread simulation download progress.A. Define a class to inherit to view and add its constructor, remember to add a constructor containing the attributset parameter; B. Define and initi

Android audio and video goes deep into an AudioRecord recording to generate pcm into wav (with source code download), androidaudiorecord This project address is named AudioRecord recording (can be paused, convert pch to wav ).Https://github.com/979451341/Audio-and-video-learning-materialsHere is an official description1. AndioRecord Overview The main function of the AndioRecord class is to allow various JAV

The broadcast in 0.Android can be divided into two types, standard broadcast and ordered broadcast. Standard broadcast (normal broadcasts) is a fully asynchronous broadcast that, after broadcast, almost all broadcast receivers receive this broadcast message at the same time,An ordered broadcast (Ordered broadcasts) is a synchronous broadcast that, after a broadcast, only one broadcast receiver can receive t

{bt.settext ("start download"); Stopflag = true; New Thread () {@Override public void run () {super.run (); while (flag) {try {sleep (1000); If total > = file length msg = new Message (); Handler.sendmessage (msg); catch (Interruptedexception e) {e.printstacktrace (); }}}.start (); Start the download ope

= new byte [length];Byte [] temp = new byte [1, 512];Int readLen = 0;Int destPos = 0;While (readLen = is. read (temp)> 0 ){System. arraycopy (temp, 0, imgData, destPos, readLen );DestPos + = readLen;}}Return imgData;}Public static InputStream download (String url) throws IO

Personal on Ubuntu using cross-compilation toolchain Arm-none-linux-gnueabi follow droidphp tutorial Built a PHP interpreter (Cli,cli-server) for Android (ARM architecture) and Raspberry Pi Raspbian (ARM architecture based Debian Linux distributions). Download Address: Http://pan.baidu.com/s/1gfJcXbX The content includes: Main: This directory is the project source code, mainly Mainactivity.java and asse