surfaceholder

SurfaceView is a classic in Android. It can implement all the functions required for two-dimensional animation. If you like animation, you can learn it in depth. Today we will start with this article, first understand the animation effect of SurfaceView. 1. A simple small example: 1) MySurfaceView. java Package com. example. l0904_surfaceview;/*** use the combination of SurfaceView and Canvas to complete * simple animation effect */import java. util. timer; import java. util. timerTask; import

Method Stub super.onresume (); Surfaceview = (Surfaceview) Findviewbyid (R.ID.SV); Get the preview screen of the receiving class Surfaceholder Holder = Surfaceview.getholder (); The Receive class settings callback-->surface created when the camera starts previewing, and the data is closed//set when exiting to originate from the rendering engine, without using its own buffer. Holder.settype (surfaceholder.surface_type_push_

Videoview.javaPackage Com.uzwan.ddd;import Java.io.filedescriptor;import Java.io.ioexception;import android.app.Activity;import Android.content.res.assetfiledescriptor;import Android.media.mediaplayer;import Android.net.Uri;import Android.util.log;import Android.view.motionevent;import Android.view.surfaceholder;import Android.view.surfaceview;import android.view.view;/** * * @author Yichou * * Create data:2013-4-22 22:19:49 */public clas S Videoview extends Surfaceview implements Surfaceholder.

interface. SurfaceView is provided for applications that need to directly draw pixels rather than using form components. An important concept and clue in the Android graphics system is surface. View and its subclass, such as TextView and Button) Draw the image on the surface. Creates a Canvas object for each surface, but its attributes change frequently. This object is used to manage the drawing operations of a view on the surface, such as drawing points and draw lines. Note that The hierarchy

VideoMethod:MediaPlayer object, with control public class Mainactivity extends Activity {Private MediaPlayer player;Private Surfaceview surface;Private Surfaceholder sh;Private Button pausebt;private int Jindu;@Overrideprotected void OnCreate (Bundle savedinstancestate) {Super.oncreate (savedinstancestate);Setcontentview (R.layout.activity_main);Surface= (Surfaceview) This.findviewbyid (r.id.surface);pausebt= (Button) This.findviewbyid (r.id.pause);}

empty Surfaceview or setting this preview to be transparent.But I have failed both of these approaches. And the user Sam gave the preview set to a 1x1 size scheme played a role. The following demo shows this scenario:The interface is very simple, a button to take pictures, the OnClick event method named Ontakephotoclicked. Public void ontakephotoclicked(View view) {FinalSurfaceview preview =NewSurfaceview ( This); Surfaceholder holder = Preview.getho

,onclicklistener{Private Surfaceholder Msurfaceholder =NullPrivate Surfaceview Msurfaceview =NullPrivate Camera Mcamera =Null@OverridePublicvoid OnCreate (Bundle savedinstancestate) {Super.oncreate (savedinstancestate); Setcontentview (R.layout.main);//Initialize component, Surfaceview Msurfaceview = (surfaceview) Findviewbyid (R.ID.SURFACEVIEW01);/*** Through the code, we obtained holder from Surfaceview and added callback function to "this". * This

This article is a custom video player that can be switched on screen (the computer is separated due to changes in size when changing the screen), such as:--------------Play Video Summary:2 Ways of Surfaceview+mediaplayer and VideoviewThere is a surfaceholder in the Surfaceview, which is obtained through the Surfaceview.getholder () method, plus settype if a compatible 2.3 system is required (surfaceholder.surface_type_ Push_buffers); otherwise only th

use the Mediacontroller class, but you need to implement Mediacontroller.mediacontroller interface * To implement some control methods. * * Then, set Controller.setmediaplayer (), Setanchorview (), setenabled (), show () on it, no longer implemented here * @author Administrator * */public class Videosurfacedemo extends Activity implements Oncompletionlistener,onerrorlistener,oninfolistener, Onpreparedlistener, Onseekcompletelistener,onvideosizechang edlistener,surfaceholder.callba

Layer, you can also use the Mediacontroller class, but you need to implement Mediacontroller.mediacontroller interface * To implement some control methods. * * Then, set Controller.setmediaplayer ()Anchorview (), setenabled (), show () on it, no longer implemented * @author Administrator * */public class Videosurfacedemo Extends Activity implements Oncompletionlistener,onerrorlistener,oninfolistener, Onpreparedlistener, Onseekcompl etelistener,onvideosizechangedlistener,surfacehol

= bytebuffer.allocate (buffersize); Boolean finished = false; Bufferinfo bufferinfo = new Bufferinfo (); Muxer.start ();while (!finished) {Getinputbuffer () would fill the inputbuffer with one frame of encodedSample from either Mediacodec or Mediaextractor, set Isaudiosample toTrue when the sample was audio data, set up all the fields of Bufferinfo,and return True if there is no more samples.Finished = Getinputbuffer (InputBuffer, Isaudiosample, Bufferinfo);if (!finished) {int currenttrackind

Look first.Package Com.hhzt.iptv.lvb_w8.view;Import Android.content.Context;Import Android.graphics.Canvas;Import Android.graphics.Color;Import Android.graphics.Paint;Import Android.graphics.PixelFormat;Import Android.graphics.PorterDuff;Import Android.os.Handler;Import Android.os.Message;Import Android.util.AttributeSet;Import Android.view.SurfaceHolder;Import Android.view.SurfaceView;Import Android.view.View;/*** Custom Light Select View** @author Chuwe1*/public class Lightview extends Surface

. */public class Camerafragment extends Fragment {public static final int request_camera_code = 100; public static final String package = "Package:"; Private static final Sparseintarray orientations = new Sparseintarray (); To make the photo appear vertically static {Orientations.append (SURFACE.ROTATION_0, 90); Orientations.append (surface.rotation_90, 0); Orientations.append (surface.rotation_180, 270); Orientations.append (surface.rotation_270, 180); } priv

); Canvas.drawbitmap (BG, New Rect (0,0,bg.getwidth (), Bg.getheight ()), New Rect (0,height, display_w,display_h+height), p); Canvas.drawbitmap (BG, new Rect (0,0,bg.getwidTh (), Bg.getheight ()), New Rect (0,-display_h+height,display_w,height), p); height++; if (height==display_h) {height=0; } return Newbitmap; } public int GetX () {return 0; } public int GetY () {return 0; }} private Boolean state = false; Private

Copy Code code as follows: Class Surface extends Surfaceview implements Surfaceholder.callback { Surfaceholder Sfholder; Camera Camera; Bitmap Bitmap; Public Surface { Super (context); TODO auto-generated Constructor stub Sfholder = Getholder (); Sfholder.addcallback (this); Sfholder.settype (surfaceholder.surface_type_push_buffers); } public void surfacechanged (surfaceholder ho

; Import Android.os.Bundle; Import Android.view.SurfaceHolder; Import Android.view.SurfaceView; Import Android.view.View; Import Android.widget.Button; Import Android.widget.SeekBar; Import Android.widget.Toast; The public class Testmedia extends activity {/** called the ' when ' is the ' The activity ' is a-created. Private SeekBar Skb_aud Io=null; Private Button Btn_start_audio = null; Private Button Btn_stop_audio = null; Private SeekBar Skb_video=null; Private Button btn_start_