piano playing app for android

The steel ant (Iron ant) released Steel ants as a very interesting agile game, these modified steel machinery ants to fill the crisis of the animal kingdom! Players who like this game, download the iron and steel ants to play it quickly! Game Introduction "Iron ant Iron ant" is a very interesting agile game! There are many ant tribes in the insect world, and in order to expand their territory, the modified steel machinery ants will invade other insect sites through the animal kingdom full of dan

); StartService (Intent);//exit Current Activity This. Finish (); }Else if(V.getid () = = R.id.btnstop) {//Stop playing musicIntent Intent =NewIntent ( This, Musicservice.class); StopService (Intent); } }}After we clicked the button "play music and exited activity", we first started musicservice through the activity's startservice, and then we immediately called the activity's finish method to destroy the current activity. You ma

! = Null) {mediaPlayer. stop (); mediaPlayer. release (); mediaPlayer = null ;}// prepare for playing @ Overridepublic void onPrepared (MediaPlayer mp) {mp. start (); Log. e ("mediaPlayer", "onPrepared");} // playback completed @ Overridepublic void onCompletion (MediaPlayer mp) {Log. e ("mediaPlayer", "onCompletion");}/*** buffer update */@ Overridepublic void onBufferingUpdate (MediaPlayer mp, int percent) {seekBar. setSecondaryProgress (percent); i

The music of a general Android app can be divided into background music and sound effects when you click various controls. The former is generally a relatively large music file, and the latter is generally a relatively small music. In Android, mediaplayer is generally used to process relatively large audio files and soundpool is used to process relatively short a

PrefaceIn order to ensure the progress of each Monday article, and because the new Vitamio version is not released, it is decided to delay some local playback functions (, video time, size, etc.), skip the section that directly writes the online playback part. From the introduction of Vitamio, we can see that it supports multiple network protocols such as http and m3u8. This chapter will compile an example of playing Youku videos. StatementWelcome to

Article Description: thinking of the Android App store. Melee, messy, and uneven, this is a idiomatic expression of the status of the domestic Android Third-party App Store. Behind the impetuous disputes, there is a lack of thinking about the App store itself. The

development of similar functions, improve the code refactoring ability. advanced to the master.the 11th Chapter Curriculum summary and the project optimizationfirst of all to congratulate everyone to adhere to the last moment, success is often more this one insist, but also very grateful to all of you chose this course, I am in the course question and answer area waiting for everyone, is supposed to say goodbye, or to give you a course summary, and suggest that we look back a few times, and fin

unreachable ), so that the GC program reclaims the memory.2.1 App memory allocation and recyclingFor each app process, the heap memory is limited to a virtual memory range. and defines the logical use of the heap size, which is within the maximum system limit and varies with the usage of the application.The logical size of the heap memory is not the same as the actual physical memory size. We will see a va

Recently, when playing an app, found just entered his page, his page of the child controls are flying from the right side, feel good, the way to imitate a. It's much more comfortable to watch than to stay there!Still Feel good! Anyway, I think it's better than a stiff-looking! You guys think that!Looking at what we are imitating:Almost, just fine-tune it!The point code, in fact, is very simple:Create a new

Objective As Android developers, presumably more or less to touch the start speed optimization related things, when the user more and more, the product function with more and more iterations, the App gradually become bloated is a very common phenomenon, even can be said to be unavoidable phenomenon, followed by the work is to optimize the performance of the app,

Android is based on the Linux kernel and is designed for mobile terminal operating systems. Mainly includes the following aspects: Application Framework:This layer provides rich application programming interfaces for application developers, such as activity manager,content provider,notification Manager, and various window widget resources. All apps are running on top of this layer.Dalvik Virtual machine:the Dalvik VM uses a register schema, rather th

http://hukai.me/android-training-managing_your_app_memory/The Random Access Memory (RAM) is a valuable resource in any software development environment. This is especially true on mobile operating systems where physical memory is usually limited. While Android's Dalvik virtual machine plays a regular garbage collection role, it doesn't mean you can ignore the timing and location of the app's memory allocation and release.For GC to be able to reclaim m

(11) BroadcastreceiverBroadcastreceiver, also known as radio, is called receiver.Many app developers say they never use receiver. In fact, for the music playing class app, with the service and receiver or quite a lot of, if you used QQ music, the app back to the background, the music will not stop, this is the service

Guo XiaoxingWeibo: Guo Xiaoxing's Sina WeiboEmail:[email protected]Blog: http://blog.csdn.net/allenwellsGithub:https://github.com/allenwells Android has maintained an isolated audio stream for playing music, alarms, notification bells, incoming calls, system sounds, call sounds, and DTMF channels, which is the premise that we can control different audio, most of which are system-limited and cannot

to mobile devices, and users download this file onto their devices. All the code in an. apk file is considered an application. AAPT: AAPT is the acronym for the Android Asset Packaging tool, which is included in the tools/directory of the SDK. View, create, and update zip-compatible archive files (zip, jar, apk). It can also compile the resource file into a binary package. Although you may not often use appt directly, the build scrip