android auto music apps

This article is an example of how Android is based on the service to implement music background playback. Share to everyone for your reference, specific as follows: Service is a long life cycle and there is no user interface program, when the program in each activity switch, we can use the service to achieve background music playback, even when the program quit

The implementation logic implements the interface change flag bit in the setup by setting the flag bit in the property_service.c. Use the services declared in Init.rc to listen for changes in flag bits, explicitly start the declared service, execute the corresponding script, rename the app suffix from the apk to Bak, and hide it (showing the opposite logic)."Implementation steps" to hide the Google Play Store (system/priv-app/phonesky.apk) as an example: 1. First in System/core/init/property_ Fl

); PRINTER.PRINTLN (info); Printer.flush (); } catch (IOException e) {//TODO auto-generated catch block E.printstacktrace (); } finally {if (printer! = null) {printer.close (); } LOGUTIL.W (Appcr.log_tag, "write exception info to file over."); }} @Override public String toString () {//TODO auto-generated method stub return info; return super.tostring ();

Activity process.@ OverrideProtected void onSaveInstanceState (Bundle outState ){OutState. putString ("fileName", fileName );OutState. putInt ("postion", postion );Super. onSaveInstanceState (outState );}// The onDestroy method can kill the program process and completely release resources.@ OverrideProtected void onDestroy (){Mediaplayer. release ();Super. onDestroy ();}// If the call is over, continue playing the music@ OverrideProtected void onResu

; switchpreference androi D:defaultvalue = "true" android:key = "auto_submit_status" android:summary =" will automatically submit out of stock orders at a specified point in time " android:title =" auto-submit Order "/> com.witmoon.homedoor.ui.preference.TimePickPreferenceandroid:defaultvalue="23:30 "android:key="auto_submit_time "android:summary="daily 23:30 "android: Title="Commit ti

) { return true; } return false; }Iii. Effect of implementationLoading application in progressWatermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqv/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/dissolve/70/gravity /center "height=" 340 "width=" 433 ">Get the apps installed to your phoneFour, warm tipsIn this example. For the sake of the aspect, I wrote some text directly in the layout file and related classes. Everyone in the real p

phone how many applications, loading installed apps, in fact loader can come in handy, see Google on the introduction:Https://developer.android.com/reference/android/content/AsyncTaskLoader.html.PS: By the way, the difference between Asynctaskloader and asynctask, read the source we go back to the summary of the two differences, the following:The most important is to load the data, using loader we do not h

. Filepathbuilder.append ("Getexternalfilesdir = ="). Append (Getexternalfilesdir ("\")). Append ("\ n");/** * Like the above method, just Returns a file of a certain type under its folder, which can be: * Environment#directory_music music * environment#directory_podcasts Audio * Environment#direc Tory_ringtones Ringtones * environment#directory_alarms alarm * environment#directory_notifications notification ringtone * Environment# Directory_pictures

policy.Scenario: If the software starts each time to read the skin files on the SD card, the speed will be slower. A good practice is to provide a skin settings interface, the user chose which skin, the skin file extracted to the "/data/data/[package Name]/skin" path, so that does not need to read across the memory, faster, And do not need to go to the zip archive every time to read, do not rely on the SD card files, even if the skin compression package files are deleted is not related.Implemen

Play Music MediaPlayer mediaPlayer = new MediaPlayer ();If (mediaPlayer. isPlaying ()){ MediaPlayer. reset (); // reset to initial state } MediaPlayer. setDataSource ("/mnt/sdcard/god.mp3 "); MediaPlayer. prepare (); MediaPlayer. start (); // starts or resumes playback. MediaPlayer. pause (); // pause playback MediaPlayer. start (); // resumes playback. MediaPlayer. stop (); // stop playing MediaPlayer. release (); // release resources MediaPlayer. se

= hourOfDay + ":" + minute; TV. setText ("currently set alarm time:" + msg) ;}, hour, minute, true ). show (); // for the five parameters in the TimePickerDialog above, see: http://blog.csdn.net/yang_hui1986527/article/details/6839342}); cancelTime. setOnClickListener (new Button. onClickListener () {@ Override public void onClick (View v) {Intent intent = new Intent (MainActivity. this, AlarmReceiver. class); PendingIntent pi = PendingIntent. getBroadcast (MainActivity. this, 0, intent, 0); Al

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(

, 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

onsaveinstancestate (bundle outstate) {outstate before the system kills the activity process. putstri Ng ("FILENAME", filename); outstate. putint ("postion", postion); super. onsaveinstancestate (outstate);} // The ondestroy method can kill the program process and completely release the resource @ overrideprotected void ondestroy () {mediaplayer. release (); super. ondestroy () ;}// if the call is over, continue playing the music @ overrideprotected