Video recording of Android development(2011-10-18 17:47:46)
reproduced
| Tags: android video recording Surfaceview |
Category: 3GAndroid Learning Notes |
To use the video recording feature, use the Mediarecorder class, and the Surfaceview buildPublic class Mainactivity extends Activity {Public static final String TAG = "mainactivity";@Overrideprotected void OnDestroy () {mediarecorder.release ();Super.ondestroy ();}private Surfaceview Surfaceview;private Button Btn_start;private Button btn_stop;private Mediarecorder Mediarecorder;private Boolean record;@OverridePublic void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);Setcontentview (r.layout.main);Mediarecorder = new Mediarecorder ();Surfaceview = (surfaceview) Findviewbyid (R.id.surfaceview); This.surfaceView.getHolder (). SetType (surfaceholder.surface_type_push_buffers);This.surfaceView.getHolder (). Setfixedsize (320, 240);//Set ResolutionBtn_start = (Button) Findviewbyid (R.id.btn_start);btn_stop= (Button) Findviewbyid (r.id.btn_stop);Clicklistener Clicklistener = new Clicklistener ();Btn_start.setonclicklistener (clicklistener);Btn_stop.setonclicklistener (clicklistener); }private Final class Clicklistener implements view.onclicklistener{Public void OnClick (View v) {if (! Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {Toast.maketext (mainactivity.this, "SD card does not exist or write protected!", 1). Show ();return;}try {switch (V.getid ()) {Case R.id.btn_start:Mediarecorder.reset ();Mediarecorder.setvideosource (MediaRecorder.VideoSource.CAMERA);//capture video from cameraMediarecorder.setaudiosource (MediaRecorder.AudioSource.MIC);Mediarecorder.setoutputformat (MediaRecorder.OutputFormat.THREE_GPP);mediarecorder.setvideosize (+);mediarecorder.setvideoframerate (3);//3 frames per secondMediarecorder.setvideoencoder (MediaRecorder.VideoEncoder.H263);//Set video encoding methodMediarecorder.setaudioencoder (MediaRecorder.AudioEncoder.AMR_NB);file Videofile = new file (Environment.getexternalstoragedirectory (), System.currenttimemillis () + ". 3gp");Mediarecorder.setoutputfile (Videofile.getabsolutepath ());Mediarecorder.setpreviewdisplay (Surfaceview.getholder (). Getsurface ());mediarecorder.prepare ();//Expected PreparationMediarecorder.start ();//Start Burningrecord = true;Break ;Case R.id.btn_stop:if (record) {mediarecorder.stop ();record = false;}Break ;}} catch (Exception e) {log.e (TAG, e.tostring ());}} } }
Video recording of Android Development 1
