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--- built_in:service [2015/11/02 09:13]
octazid Sample from the forum
+++ built_in:service [2018/12/29 16:47]
@@ Line 1: / Line 1: @@
-====== Service ======
-===== Methods =====
-^ Method                                    ^ Description  ^
-| Service.Send( cmd,p1,p2,p3,p4,p5,p6,p7 )  |              |
-| Service.SendImg( cmd,img )                |              |
-| Service.SendMessage( msg )                |              |
-| Service.SetOnMessage( callback )          |              |
-| Service.Stop()                            |              |
-===== Sample =====
-//(posted by Dave Smart in the DroidScript Forum)//
-Create a new project called "Music Service" and copy the 2 files in the folder.
-**File 1:**
-<code JavaScript Service.js>
-//Called when service is started.
-function OnStart()
-{
-app.ShowPopup( "Hello from Service!" );
-//Create media player.
-player = app.CreateMediaPlayer();
-player.SetOnReady( player_OnReady );
-player.SetOnComplete( player_OnComplete );
-//Query media store for a nice long track.
-media = app.CreateMediaStore();
-media.SetOnMediaResult( media_OnMediaResult );
-media.QueryMedia( "duration > 120000", "", "external" );
-}
-//Handle media query results.
-function media_OnMediaResult( result )
-{
-if( result.length==0 ) return;
-//Play first file found.
-track = result[51];
-player.SetFile( track.uri );
-//Get album art.
-var img = app.CreateImage( null, 0.1, 0.1 );
-var gotArt = media.GetAlbumArt( img, track.albumId, "external" );
-//Show a notification with album art if available.
-notify = app.CreateNotification( "Ongoing" );
-notify.SetMessage( track.title, track.title, track.album );
-if( gotArt ) notify.SetLargeImage( img );
-notify.Notify( "my_player_id" );
-}
-//Called when we get a service message.
-function OnMessage( msg )
-{
-//Show debug in WiFi IDE.
-console.log( msg );
-//Handle commands from main App.
-if( msg=="play" ) player.Play();
-else if( msg=="pause" ) player.Pause();
-else if( msg=="quit" ) notify.Cancel( "my_player_id" );
-}
-//Called when player is ready to play.
-function player_OnReady()
-{
-player.Play();
-}
-//Called when playback has finished.
-function player_OnComplete()
-{
-notify.SetMessage( "Track Finished!", track.title, track.album );
-notify.Notify( "my_player_id" );
-}
-</code>
-**File 2:**
-<code JavaScript Music Service.js>
-//Called when application is started.
-function OnStart()
-{
-//Create a layout.
-lay = app.CreateLayout( "linear", "VCenter,FillXY" );
-//Create a 'Play' button.
-btn = app.CreateButton( "Play", 0.6, 0.1 );
-btn.SetMargins( 0, 0.05, 0, 0 );
-lay.AddChild( btn );
-btn.SetOnTouch( btn_OnTouchPlay );
-//Create a 'Pause' button.
-btn = app.CreateButton( "Pause", 0.6, 0.1 );
-btn.SetMargins( 0, 0.05, 0, 0 );
-lay.AddChild( btn );
-btn.SetOnTouch( btn_OnTouchPause );
-//Create a 'Stop Service' button.
-btn = app.CreateButton( "Stop Service", 0.6, 0.1 );
-btn.SetMargins( 0, 0.05, 0, 0 );
-lay.AddChild( btn );
-btn.SetOnTouch( btn_OnTouchStop );
-//Add layout to app.
-app.AddLayout( lay );
-//Start/connect to our service.
-svc = app.CreateService( "this","this", OnServiceReady );
-//This will cause your service to start at boot.
-app.SetAutoBoot( "Service" );
-}
-//Called after our service has started.
-function OnServiceReady()
-{
-console.log( "Service Ready" );
-}
-function btn_OnTouchStop()
-{
-//Tell service we are quitting.
-svc.SendMessage( "quit" );
-//Stop the service.
-svc.Stop();
-}
-function btn_OnTouchPlay()
-{
-//Tell service to play music.
-svc.SendMessage( "play" );
-}
-function btn_OnTouchPause()
-{
-//Tell service to pause music.
-svc.SendMessage( "pause" );
-}
-</code>

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