surfaceholder

. cameraInfo; import android. OS. bundle; import android. OS. environment; import android. OS. handler; import android. view. surfaceHolder; import android. view. surfaceView; import android. view. window; import android. view. windowManager; import android. widget. textView; import com. example. pujiejiaapp. r; @ SuppressLint ({"NewApi", "SdCardPath"}) publ Ic class CameraActivity extends Activity implements Runnable {// preview image range private S

Google has output TextureView from Android4.0. Why? This is to make up for Surfaceview's shortcomings. On the other hand, it is also to balance GlSurfaceView. Of course, this is my speculation. The relationships between TextureView, Surfaceview, SurfaceTexture, and GLSurfaceView will be analyzed after the artist launches GLSurfaceview preview Camera. This article describes how to preview Camera with TextureView. In fact, the official website has provided a demo on how to use TextureView to previ

; import android. graphics. bitmapFactory; import android. graphics. canvas; import android. graphics. color; import android. graphics. paint; import android. graphics. porterDuff. mode; import android. graphics. porterduxfermode; import android. graphics. rectF; import android. util. attributeSet; import android. view. surfaceHolder; import android. view. surfaceVie W; public class MySurfaceView extends SurfaceView implements

android. graphics. bitmap; import android. graphics. bitmapFactory; import android. graphics. canvas; import android. graphics. color; import android. graphics. paint; import android. graphics. porterDuff. mode; import android. graphics. porterduxfermode; import android. graphics. rectF; import android. util. attributeSet; import android. view. surfaceHolder; import android. view. surfaceVie W; public class MySurfaceView extends SurfaceView implement

Code: Public class gameview extends surfaceview implements callback {private float X; private float y; private double angle; // the right direction is positive, the angle is zero, and the clockwise private int radius; private surfaceholder; private animthread thread; private double accelerate; private int lastdir = direction. mid; Public gameview (context) {super (context); // todo auto-generated constructor stubsurfaceholder = This. getholder (); s

;Android: Id = "@ + ID/msurfaceview1"Android: visibility = "visible"Android: layout_width = "320px"Android: layout_height = "240px"> Surfaceview is used for preview, Initialize a series of values in the oncreat function: Requestwindowfeature (window. feature_no_title );Setcontentview (R. layout. Lay ); /* Retrieve screen resolution pixels */Displaymetrics dm = new displaymetrics ();Getwindowmanager (). getdefaultdisplay (). getmetrics (DM );// Mimageview01 = (imageview) findviewbyid (R. Id. myi

Android.view.motionevent;import android.view.surfaceholder;import android.view.surfaceview;/** * SurfaceView * Created by chenling on 2016/5/9. * 1.View is primarily used for automatic updates, while SURFACEVICW is primarily intended for passive updates, such as frequent refresh * 2.View is refreshed in the main thread, and Surfaceview typically uses a thread to refresh the page. * 3.View does not have a double buffering mechanism when drawing, and SURFACEVICW has implemented double buffering m

seekBar) { int progress = seekBar.getProgress(); mi.seekTo(progress); } // 开始拖动时调用 @Override public void onStartTrackingTouch(SeekBar seekBar) { } // 拖动的时候不断调用 @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { 5.4 Video Player Surfaceview High demand for real-time updates to the screen Double buffering technology: There are two canvases in memory, a canvas is displayed

Introduction to common methods of Android MediaPlayerMethod: Create (context context, URI Uri)Explanation: A static method that creates a multimedia player from a URI.Method: Create (context context, int resid)Explanation: Static method, creating a multimedia player with resource IDMethod: Create (context context, Uri Uri, Surfaceholder holder)Explanation: A static method that creates a multimedia player by URI and specifying

, boolean fromUser) { // TODO Auto-generated method stub } Video player (familiar) Surfaceview High demand for real-time updates to the screen Double buffering technology: There are two canvases in memory, a canvas is displayed to the screen, B canvas draws the next frame in memory, B is displayed to the screen after drawing, a continues to draw the next frame in memory Play video is also used MediaPlayer, but unlike audio, to set the display in which

android.graphics.Region; Import Android.util.AttributeSet; Import Android.view.SurfaceHolder; Import Android.view.SurfaceView; /** * Gengqiquan * June 2, 2016 16:16:48 * Water wave display percent control */public class Waveview extends Surfaceview implements Surfaceholder . Callback {point mcentrepoint; int mnowheight = 0;//current water level int Mradius = 0; Boolean mstart = false;//whether to start float mtextsise = 60;//text size context

stat_interval = 1000; MS//The average is calculated by storing//the last n FPSS private final static int fps_history_nr = 10; Last time the status is stored PrivaTe long laststatusstore = 0; The status Time counter private long Statusintervaltimer = 0l; Number of frames skipped since the game started private long totalframesskipped = 0l; Number of frames skipped in a store cycle (1 sec) Private long framesskippedperstatcycle = 0l; Number of rendered frames in interval private int framecoun

1. Bolted bombspublic class Mysurface extends Surfaceview implements Callback, Runnable {surfaceholder Holder;boolean goOn = True;int w;i NT H; Bitmap bitmap;int x;int y;int bx;int By;boolean down = true;boolean right = True;int p = 30;public mysurface (Context Conte XT, int wi, int hi) {super (context);//TODO auto-generated Constructor Stubholder = Getholder (); Holder.addcallback (this); Setfocusable (True); Setfocusableintouchmode (true); w = wi;h

) {Msurface.setflashlightswitch (false); Isflashlighton = False;mimageview.setimageresource (R.drawable.flashlight_off);} Else{msurface.setflashlightswitch (true); Isflashlighton = True;mimageview.setimageresource (R.drawable.flashlight_ on);}} Return SupeR.ontouchevent (event);}} Flashlightsurface.javaPackage Com.android.flashlight;import Android.content.context;import Android.graphics.pixelformat;import Android.hardware.camera;import Android.util.attributeset;import Android.view.surfaceholder;

This article is for reading http://blog.csdn.net/xiaominghimi/article/details/6089594 's notes.The main role in Android games, in addition to the control class is the display class. What's involved in Android is the view class, and other subclasses of the Surfaceview class and surfaceview that inherit from it.This is the first view and Surfaceview. The direct subclasses of Surfaceview are Glsurfaceview and Videoview, and you can see that GL and video playback and camera cameras generally use sur

The logic of a video playback under Android is just part of the activity logic sourceDemoactivity:public class Demoactivity extends Activity implements Onclicklistener {EditText Et_path;Button Bt_start;Button Bt_pause;Button Bt_restart;Button Bt_stop;Surfaceview SV;Surfaceholder Holder;MediaPlayer player;@Overrideprotected void OnCreate (Bundle savedinstancestate) {Super.oncreate (savedinstancestate);Setcontentview (R.layout.main);Et_path = (EditText)

requires a preview interface for the user to display the objects to be photographed, and we can use Surfaceview to show the images captured by the camera.//In order to display a preview interface, we need to create an previews class. This class needs to implement the Android.view.SurfaceHolder.Callback interface, which uses this interface to pass the data acquired by the camera hardware to the program, which must be passed to the camera object before the image real-time preview begins. class P

1, because of the compatibility of the API, Mediarecorder, the start of the way is also different, because I watch the video is API 8 so can not start, in the Internet to check a lot of information is not clear, and ultimately to the official website to view to achieve:The way the official website is implemented:I realized the demo, hoping to give me the same beginner a little help, less detours:Permissions Required:Main_xml file　　public class Mainactivity extends Actionbaractivity {//actionbara

); } @Overrideprotected void onResume() {super.onResume();mHandler.post(mMainView);}@Overrideprotected void onPause() {super.onPause();mHandler.removeCallbacks(mMainView);}/** * * @author K * */ public class MainView extends SurfaceView implements SurfaceHolder.Callback, Runnable{ private SurfaceHolder mSurfaceHolder; private Canvas mCanvas; private Context mContext; // private CommonScene mScene; /**test no

Many applications open the welcome interface for about 0.5 seconds, and then jump to the main interface, are implemented by latency. Bytes. Now I want to automatically preview the application as soon as I open it and draw a cross sign. That is, the preview is implemented by the button listener, and the preview is performed in the surfacecreated function. Define a surfacecallback class in mainactivity. As follows: private final class SurfaceCallback implements Callback{ public void surface