Android tutorial video summary

Android tutorial video summary:

(1) Part 1: quickly learn about Android videos in 8 days.

(2) The second tutorial on Android Development

(3) sundy's <Android introduction> <Android advanced applications> <Android development video tutorial>

(4) course series of "android development starts from scratch"

(5) Li Xinghua teaches you how to develop android

(6) Android development video tutorial of Mars

Http://url.cn/IEYPzR

Http://t3.qpic.cn/mblogpic/9088bb506dba8eb45c58/2000 http://t.qq.com/p/t/180962016212776

// Musiccontrol. Java

Package com. Android. Internal. Policy. impl;

Import java. Io. filedescriptor;
Import java. Io. filenotfoundexception;
Import java. util. formatter;
Import java. util. locale;
Import Android. util. log;
Import com. Android. Internal. R;
Import com. Android. Music. imediaplaybackservice;
Import Android. content. componentname;
Import Android. content. contenturis;
Import Android. content. context;
Import Android. content. intent;
Import Android. content. serviceconnection;
Import Android. Graphics. Bitmap;
Import Android. Graphics. bitmapfactory;
Import Android. Graphics. matrix;
Import Android. widget .*;
Import android.net. Uri;
Import Android. OS. Handler;
Import Android. OS. ibinder;
Import Android. OS. message;
Import Android. OS. parcelfiledescriptor;
Import Android. OS. RemoteException;
Import Android. provider. mediastore;
Import Android. View. view;
Import Android. widget. imagebutton;
Import Android. widget. linearlayout;
Import Android. widget. progressbar;
Import Android. widget. textview;

Public class musiccontrol implements view. onclicklistener, serviceconnection {
Private view musiccontrolview;
Private relativelayout mmusicwidget;
Private imagebutton prevsong;
Private imagebutton pauseorplay;
Private imagebutton nextsong;
Private textview artistname;
Private textview songname;
Private textview trackname;
Private textview mdate;
Private imediaplaybackservice mservice;
Private context mcontext;
Private string tag = "musiccontrol ";

Private Final Static int refresh = 0;
Handler mhandler = new handler (){

@ Override
Public void handlemessage (Message MSG ){
Switch (msg. What ){
Case Refresh:
Try {
If (mservice! = NULL ){
Artistname. settext (mservice. getartistname ());
Songname. settext (mservice. gettrackname ());
Trackname. settext (mservice. gettrackname ());
If (mservice. isplaying ()){
Pauseorplay. setimageresource (R. drawable. iphone_stop );
} Else {
Pauseorplay. setimageresource (R. drawable. iphone_play );
}
}
} Catch (RemoteException e ){
E. printstacktrace ();
}
Mhandler. removemessages (refresh );
Mhandler. sendemptymessagedelayed (refresh, 1000 );
Break;

Default:
Break;
}
}

};

Public musiccontrol (context, view musicview ){
Log. D (TAG, "musiccontrol Contruct ");
Mcontext = context;
Musiccontrolview = musicview;
Mcontext. bindservice (new intent ("com. Android. Music. mediaplaybackservice"), this, context. bind_auto_create );
 
Prevsong = (imagebutton) musiccontrolview. findviewbyid (R. Id. musiccontrolprevious );
Pauseorplay = (imagebutton) musiccontrolview. findviewbyid (R. Id. musiccontrolplayorpause );
Nextsong = (imagebutton) musiccontrolview. findviewbyid (R. Id. musiccontrolnext );

Artistname = (textview) musiccontrolview. findviewbyid (R. Id. Artist );
Songname = (textview) musiccontrolview. findviewbyid (R. Id. song_name );
Trackname = (textview) musiccontrolview. findviewbyid (R. Id. track_name );

Prevsong. setonclicklistener (this );
Pauseorplay. setonclicklistener (this );
Nextsong. setonclicklistener (this );
}
 
Public void startrefresh (){
Mhandler. removemessages (refresh );
Mhandler. sendemptymessage (refresh );
}
Public void stoprefresh (){
Mhandler. removemessages (refresh );
}
Public String getmusictrack () throws RemoteException {
Return mservice. gettrackname ();
}

@ Override
Public void onclick (view v ){
If (V = prevsong ){
Try {
Log. D (TAG, "musiccontrol onclick mservice:" + mservice );
If (mservice! = NULL ){
Mservice. Prev ();
}
} Catch (RemoteException e ){
E. printstacktrace ();
}
} Else if (V = pauseorplay ){
Try {
Log. D (TAG, "musiccontrol onclick mservice:" + mservice );
If (mservice! = NULL ){
If (mservice. isplaying ()){
Mservice. Pause ();
Pauseorplay. setimageresource (R. drawable. iphone_play );
} Else {
Mservice. Play ();
Pauseorplay. setimageresource (R. drawable. iphone_stop );
}
}

} Catch (RemoteException e ){
E. printstacktrace ();
}
} Else if (V = nextsong ){
Log. D (TAG, "musiccontrol onclick mservice:" + mservice );
Try {
If (mservice! = NULL ){
Mservice. Next ();
}

} Catch (RemoteException e ){
E. printstacktrace ();
}
}
}

@ Override
Public void onserviceconnected (componentname name, ibinder Service ){
Log. D (TAG, "musiccontrol onserviceconnected ");
Mservice = imediaplaybackservice. stub. asinterface (service );
}

@ Override
Public void onservicedisconnected (componentname arg0 ){
Mservice = NULL;
}
 
Public Boolean ismusicplay (){
Log. D (TAG, "musiccontrol ismusicplay mservice:" + mservice );
Boolean isplay = false;
If (mservice! = NULL ){
Try {
Isplay = mservice. isplaying ();
} Catch (RemoteException e ){
Log. D (TAG, "musiccontrol ismusicplay RemoteException ");
Isplay = false;
E. printstacktrace ();
}
}
Return isplay;
}
}