media apps for android auto

Android Media (recording, playing music, playing video, etc) /*** Recording ** @ param incomingNumber */public void startRecorder (String incomingNumber) {// 1. create a recorder instance recorder = new MediaRecorder (); // 2. set the path of the data source (VOICE_CALL simulator and foreign mobile phones do not support) recorder. setAudioSource (MediaRecorder. audioSource. MIC); // 3. set the output file f

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 illustratesAs long as a successful return to the

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

In some applications, in order to implement the application of the APK resource into the reuse, or use reflection to get the resources of the application, it needs to be obtained by reflection reflection, but the resource class also comes with this method, and the function is more powerful Note that the resources mentioned here are static resources, that is, media files Android.content.res.Resources.class public int Getidentifier (string name, Strin

databases. Content provider is the preferred method for sharing data between applications. You can configure your own content Provider to allow other applications to access, or you can access the content Provider provided by other applications. Android devices contain several local content provider to provide useful databases, such as media libraries and contact information. Intent: A powerful messaging

The MediaPlayer class for music media playback in Android is defined as followsFinal MediaPlayer Mprain = mediaplayer.create (this, r.raw.rain);The file is Res/raw/rain.mp3//raw I created it myself in Androidstudio.My own usage here is that there is only one button, click Use, if it stops on playback, otherwise start playing, attach code1Mprain.setlooping (true);2Buttonrain.setonclicklistener (NewButton.onc

, the code is as follows @Override publiconBind(Intent intent) { // TODO Auto-generated method stub returnnew IMyService.Stub() { @Override publicvoidbasicTypethrows RemoteException { // TODO Auto-generated method stub } }; }At this point, a simple aidl is created successfully.We go back to the SERVICE2 project and add the button

address 015D? 2) What is the virtual address corresponding to the physical address of 113C? 3) Process A has a job length of 8 pages, trying to access the virtual address 2a3d and save the integer 1 to the address of the physical address space, and then try to read the saved data from the address, will the a process this two times the memory access process can be normal execution? and explain why. 24. Based on the idea of fast sequencing, implement the following functions to find o

{@DatabaseField (id=true) PrivateInteger ID; @DatabaseField (ColumnName= "Name") PrivateString name; PublicPerson () {} PublicPerson (String name) { This. name=name; } Public voidSetUid (intuid) { This. ID =uid; } PublicInteger Getuid () {returnID; } PublicString GetName () {returnname; } Public voidsetName (String name) { This. Name =name; } @Override PublicString toString () {returnname; }}The rule we use is to add some attributes to the fields that need to be m

implements Onclicklistener {Intent serviceintent;@Override protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate); Setcontentview (R.layout.activity_main); Serviceintent =NewIntent (); Serviceintent.setcomponent (NewComponentName ("Com.example.service1","Com.example.service1.MyService")); Findviewbyid (R.id.button1). Setonclicklistener ( This); Findviewbyid (R.id.button2). Setonclicklistener ( This); }@Override Public Boolean Oncreateoptionsmenu(

Some apps for Actionbar in AndroidSet up titles, icons, and custom labelsActionBar bar = Getactionbar ();HideBar.hide ();ShowBar.show ();Icon HideBar.setdisplayshowhomeenabled (FALSE);setting of IconsBar.setdisplayuselogoenabled (TRUE);hiding the titleBar.setdisplayshowtitleenabled (FALSE);Set sub-headingsBar.setsubtitle ("Neon");Switch to return buttonBar.setdisplayhomeasupenabled (TRUE);Custom ButtonsBar.setdisplayshowcustomenabled (TRUE);Set MenuBu

Use the following code in Android to sharedpreferences data sharing between two applications, but only if you want to ensure that the android:shareduserid of the two applications is the sameContext context = NULL; try {context=createpackagecontext ("com.android.providers.downloads", context.context_ignore_security);} catch ( Namenotfoundexception e) {//TODO auto-generated catch Blocke.printstacktrace ();} S

, URI, file, resource ID, and so on. Basically meet most of the needs. Although loading local pictures is not as complex as network pictures, I recommend using glide to load local pictures. Because it is memory friendly, but also "secretly" to help us do a lot of things. For example, memory cache, bitmap multiplexing, fixed photo direction, and so on. Of course, in order to meet a variety of needs, just loading pictures is not enough, you also need to make a variety of images, that is, transform

Today in the use of 360 mobile phone assistant, found that it will automatically create a quick start mode, it feels very interesting, so on the Internet Baidu Some methods, try, there is a way is quite good, I use for reference, first save, I also wrote a Test applet.First, add the code in the mainactivity you want to launch the app into, and in the OnCreate () method, plus a method createshortcut ();Then there is the implementation of the method:private void CreateShortcut () {//TODO

shortcuts Sendbroadcast (_returnintent);Launcheractivity. This. Finish ();}of course, the above to join the call permission :If we want to uninstall the shortcut, we need to add the permission in the layout fileThen the Com.android.launcher.permission.UNINSTALL_SHORTCUT is passed into the intent( two ): use an Activity, and then click on the Home screen menu-> add Select Shortcut - Select the shortcut for the created application , see the following effect : Create the steps below :①: regist

"); FinalUri uri = uri.parse ("http://www.baidu.com"); FinalIntent it =NewIntent (Intent.action_view, URI); No timer, no need, timer timer.=NewTimer (); TimerTask Task=NewTimerTask () {@Override Public voidrun () {startactivity (it);//Execution } }; Timer.schedule (Task,2000);//after 10 seconds } });Androidmanifest.xml file included in ActivityAndroid:name=

Android Auto-Boot Analysis,1.1 enable the Android system1.1.1. Implement your own broadcast receiver and implement the logic to be processed in the onReceive () method1.1.2. register the broadcast receiver in AndroidManifest. xml and declare that the receiving broadcast filter is Boot_Completed broadcast.1.1.3. Declare PermissionsThere is no big difference betwee

follows:Capitalization is the kind of toast that can be found, but lowercase does not find the Toast class, which is obviously not the result you want. But when you set the case sensitive completion to none, you can find the toast class with the same lowercase "t" as Eclipse.------------------------------------------------------------------------------Setup method:1. Click the file option in the upper left corner to find the settings2. After clicking Settings, find Editor3. Click on the editor,

interface via reflection Forcestoppackage interface Stop ApplicationB. Disable button in Setting?application?detail, deactivated appC. New installations, applications that have never been opened and executed1.2 boot_completed broadcast the time of dispatch to understand the timing of the boot_completed broadcast, you must understand the Android startup process,Get a quick overview of the Android boot seque