AIDL/IPC Android AIDL/IPC process communication mechanism-detailed explanation and usage case analysis (player)
First, let's look at AIDL. What is AIDL? IPC? ------ Designing a Remote Interface Using AIDL
Generally, we use Binder and BroadCastReciver in the same process to allow the Service to communicate with the Activity, data interaction, and data sharing. But what about cross-process?
IPC: IPC interface
After the basic Android training is complete, you can create a simple music player. For the first small Android project, baseline the picture ~~~~
The UI is inspired by the fact that thunder looks at the player and plays the mediaplayer class when audio is used in Android
I recently worked on a screen lock project in my company. I need to display the status of the music player on the screen lock page, similar to the screen lock page of Xiaomi. There are similar functions available on the Internet. Let's make a summary here.
First of all, this data information is sent from the Service (COM. Android. Music. mediaplaybackservice) in the music
Android universal player, android
Android universal player0. eclipse can be directly imported for consumption (parent, there are two library projects) 1. vitamio-based universal player (Baidu) 2. scan the local video to obtain the first frame of each video and display it. g
Today, we have successfully transplanted our self-developed ffmpeg-based player to Android and successfully tested it on the tablet. According to the ideas provided in this article, we can port all ffmpeg-based players to Android.
Preparations:
The compilation methods of ffmpeg and SDL are described in the previous article.
During development, the two compiled
This article introduces the MediaPlayer local music player. When the application is no longer on the frontend and is not using it, we need to establish a Service to ensure that the audio continues to play.
Interaction between Activity and Service binding is the focus of this article (here we need to note that Activity cannot directly access methods in Service objects, so we have introduced it here, this is also a consideration for service security and
Starting from this article, the implementation of a music player is described in detail, as well as the ability to get the latest recommended songs and download songs from the network parsing data.Features are described below:1. Get the local song list and play the song function.2, using hardware acceleration sensor, shake the phone to achieve the function of switching songs3. Use Jsoup to parse webpage data, get the song list from the network, and re
Android audio and video went deep into 1949th using ijkplayer as a video player (with source code download) and androiw.player
Project addressHttps://github.com/979451341/MyijkplayerSome time ago, I thought it was difficult to make FFmpeg a video player. Although there was no problem in playing the video, I still needed to drag the progress bar to set the playing
Android error MediaPlayer usage Media Player called in state *
When using Media Player, let's take a look at several issues.
The usage will not be mentioned. It is best to refer to this figure of mediaPlayer when using it.
The first error is Media Player called in state 8.
This is because there is no prepare before
Android error-MediaPlayer usage: Media Player called in state *, androidmediaplayer
When using Media Player, let's take a look at several issues.
The usage will not be mentioned. It is best to refer to this figure of mediaPlayer when using it.
The first error is Media Player called in state 8.
This is because there
We want to develop our own media player on Android. The first thing we want to think of is to use FFMPEG for implementation. FFmpeg is a cross-platform failover function. We can call the APIS provided by FFMPEG to complete the process. In addition, FFMPEG provides a small program ffplay, which itself is a media player, so we plan to use ffplay as the program's ba
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 repost, but please keep the original source o
With media Player, there are a few questions, rememberUsage is not said, when using the best reference to the MediaPlayer of this pictureThe first error is media Player called in State 8This is because there was no prepare before calling start, because I used theMediaPlayer = mediaplayer.create (context, r.raw.notice);To initialize the player, this interface illu
Recently, to do an Android music player, is the task of the Senior school in the lab, I developed on the eclipse, because there is no basis for Android, so it is difficult to do.The first is the difficulty of the layoutNot familiar with control properties in 1.layout2. Want to do a music list do not know to use the ListView control, the Internet also found a lot
First, IntroductionAs Android development, we inevitably will be exposed to video playback, videoview as the simplest player, we should not be.Here is a brief introduction to Videoview:
Videoview is the use of MediaPlayer to control video files.
Videoview only supports MP4, AVI, 3GP format video, support format is relatively single, Videoview supported format can refer to MediaPlayer.
Video
The simplest example of mobile terminal based on FFmpeg attachment: built-in Android player, ffmpegandroidPrevious articles record FFmpeg-based multimedia programs on the Android platform. For comparison, this article records a Video Player Based on the android Multimedia Fr
The Android system provides the MediaPlayer control, which enables you to play audio.
From learning Android, when I was watching the tutorial, I thought that I would like to make a music player myself, because a complete music player has many functions, it involves many aspects of knowledge, which can help us better le
Android Development-mediaplayer Simple music playerFunction Introduction
Implement a simple player, similar to the NetEase cloud music format, features include:
Play, pause, stop, exit function;
Background playback function;
Progress bar shows playback progress, drag progress bar changes the progress function;
When playing the picture rotation, display the current play
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