Simple video player for Android

Public class videoactivity extends activity {
Private Static final string tag = "videoactivity ";
Private edittext filenametext;
Private surfaceview;
Private mediaplayer;
@ Override
Public void oncreate (bundle savedinstancestate ){
Super. oncreate (savedinstancestate );
Setcontentview (R. layout. Main );
Buttonclicklistener listener = new buttonclicklistener ();
Imagebutton playbutton = (imagebutton) This. findviewbyid (R. Id. Play );
Playbutton. setonclicklistener (listener );
Imagebutton pausebutton = (imagebutton) This. findviewbyid (R. Id. Pause );
Pausebutton. setonclicklistener (listener );
Imagebutton resetbutton = (imagebutton) This. findviewbyid (R. Id. Reset );
Resetbutton. setonclicklistener (listener );
Imagebutton stopbutton = (imagebutton) This. findviewbyid (R. Id. Stop );
Stopbutton. setonclicklistener (listener );
// In this case, you need to set the callback function to inherit the callback class to implement three methods.
Surfaceview. getholder (). addcallback (New mycallback ());
Filenametext = (edittext) This. findviewbyid (R. Id. filename );
Surfaceview = (surfaceview) findviewbyid (R. Id. surfaceview );
Surfaceview. getholder (). settype (surfaceholder. surface_type_push_buffers );
// Set the size.
Surfaceview. getholder (). setfixedsize (176,144 );
Mediaplayer = new mediaplayer ();
}
Private class mycallback implements Android. View. surfaceholder. Callback {
@ Override
Public void surfacechanged (surfaceholder holder, int format, int width,
Int height ){
// Todo auto-generated method stub
}
@ Override
Public void surfacecreated (surfaceholder holder ){
// Todo auto-generated method stub
}
@ Override
Public void surfacedestroyed (surfaceholder holder ){
// Todo auto-generated method stub
}
}
// When a call arrives, the playback service must be stopped.
@ Override
Protected void onpause (){
If (mediaplayer. isplaying ())
Mediaplayer. Pause ();
Super. onpause ();
}
@ Override
Protected void onresume (){
If (mediaplayer. isplaying ())
Mediaplayer. Pause ();
Super. onresume ();
}
@ Override
Protected void ondestroy (){
If (mediaplayer. isplaying ())
Mediaplayer. Stop ();
// Note that this part is released
Mediaplayer. Release ();
Super. onstop ();
}
Private class buttonclicklistener implements view. onclicklistener {
@ Override
Public void onclick (view v ){
Try {
String filename = filenametext. gettext (). tostring ();
Switch (V. GETID ()){
Case R. Id. Play:
// Obtain the key code of the file name
String filenames = filenametext. gettext (). tostring ();
// Step 1: reset the object
Mediaplayer. Reset ();
// Key code for setting the stream type
Mediaplayer. setaudiostreamtype (audiomanager. stream_music );
// Set the data source
Mediaplayer. setdatasource ("/sdcard/" + filenames); // you can specify the video to be played.
// Output the video to the key code of the display control.
Mediaplayer. setdisplay (surfaceview. getholder ());
// Buffer before playback
Mediaplayer. Prepare ();
Mediaplayer. Start ();
Break;
Case R. Id. Pause:
If (mediaplayer. isplaying ()){
Mediaplayer. Pause ();
} Else {
Mediaplayer. Start ();
}
Break;
Case R. Id. Reset:
If (! Mediaplayer. isplaying ()){
Mediaplayer. Start ();
}
// Jump back to the starting position and play again
Mediaplayer. seekto (0 );
Break;
Case R. Id. Stop:
If (mediaplayer. isplaying ()){
Mediaplayer. Stop ();
}
Break;
}
} Catch (exception e ){
Log. E (TAG, E. tostring ());
}
}
}
}