Experiment 6 play audio and video in the app

Lab Report

Course Name		Mobile Internet development based on Android platform		Date of experiment	2015.4.16
Name of the experimental project		Experiment 6 play audio and video in the app		Location of the experiment	S30010
Type of experiment		-Verification Type √ design type-comprehensive type		Hours	2
The purpose and requirements of the experiment (the knowledge points which are involved in this experiment and are required to be mastered)
1. Implement audio and video processing in the application. 2. Realize playback audio, audio playback control; 3. Realize playback video, video playback control; 4. Use service services to play music from the project source file.
second, the experimental environment (the hardware equipment and related software used in this experiment)
(1) PC Machine (2) Operating system: Windows XP (3) Software: Eclipse, jdk1.6,android Sdk,adt
Third, the contents and steps of the experiment
1) New Project 2) Modify the layout file Main.xml 3) Perfect Activity class
Four, the experimental results (the experimental source program list and operating results or experimental conclusions, experimental design drawings)
Code: protected void onCreate (Bundle savedinstancestate) { TODO auto-generated Method stub Super. OnCreate (savedinstancestate); Setcontentview (r.layout. Mediapaly); Btnstart= (ImageButton) Findviewbyid (r.id. Btnstart); Btnpause= (ImageButton) Findviewbyid (r.id. Btnpause); btnstop= (ImageButton) Findviewbyid (r.id. Btnstop); Btnyuan= (Button) Findviewbyid (r.id. Yuan); Netbtn= (Button) Findviewbyid (r.id. NET); Benbtn= (Button) Findviewbyid (r.id. Bendi); Tingbtn= (Button) Findviewbyid (r.id. Tingzhi); Tuibtn= (Button) Findviewbyid (r.id. Tui); tv= (TextView) Findviewbyid (r.id. TV); Btnstart.setonclicklistener (new Onclicklistener () { @Override Public void OnClick (View arg0) { TODO auto-generated Method stub Player=mediaplayer. Create (Mediaplay. this, R.raw. nan); Player.start (); Tv.settext ("Playing music ....") "); } }); Btnstop.setonclicklistener (new Onclicklistener () { @Override Public void OnClick (View arg0) { TODO auto-generated Method stub if (Player.isplaying ()) { Player.stop (); Tv.settext ("Music stops playing! "); } } }); Btnpause.setonclicklistener (new Onclicklistener () { @Override Public void OnClick (View arg0) { TODO auto-generated Method stub if (Player.isplaying ()) { Player.pause (); Tv.settext ("Music Paused! "); }Else{ Player.start (); } } }); Btnyuan.setonclicklistener (new Onclicklistener () { @Override Public void OnClick (View arg0) { TODO auto-generated Method stub Player=mediaplayer. Create (Mediaplay. this, R.raw. nan); Player.start (); } }); file=New File (environment. getExternalStorageDirectory(). GetPath () + "/nan.mp3"); if (File.exists ()) { Player=mediaplayer. Create (Mediaplay. this, Uri. Parse (File.getabsolutepath ())); }Else { Toast. Maketext (Mediaplay. This, "The file does not exist!" ", Toast. Length_long). Show (); } Benbtn.setonclicklistener (new Onclicklistener () { @Override Public void OnClick (View arg0) { TODO auto-generated Method stub Player.reset (); Try { Player.setdatasource (File.getabsolutepath ()); Player.prepare (); Player.start (); } catch (IllegalArgumentException e) { TODO auto-generated Catch block E.printstacktrace (); } catch (SecurityException e) { TODO auto-generated Catch block E.printstacktrace (); } catch (IllegalStateException e) { TODO auto-generated Catch block E.printstacktrace (); } catch (IOException e) { TODO auto-generated Catch block E.printstacktrace (); } } }); Tingbtn.setonclicklistener (new Onclicklistener () { @Override Public void OnClick (View arg0) { TODO auto-generated Method stub if (Player.isplaying ()) { Player.pause (); Tv.settext ("Music Paused! "); }Else{ Player.start (); } } }); Tuibtn.setonclicklistener (new Onclicklistener () { @Override Public void OnClick (View arg0) { TODO auto-generated Method stub if (Player.isplaying ()) { Player.stop (); Tv.settext ("Music stops playing! "); } } }); } Run:
Five, Experimental summary (analysis of the results of the experiment, experience and improvement of experimental ideas)
The content of the experiment is very interesting, according to the teacher's steps and methods can successfully complete the experiment, very meaningful, next time
Experimental reviews
Experimental results			Guide Teacher Signature: Date

Experiment 6 play audio and video in the app