package?org.winplus.camera;

import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.util.Date;

import?android.app.Activity;
import?android.content.pm.ActivityInfo;
import?android.graphics.PixelFormat;
import?android.hardware.Camera;
import?android.os.AsyncTask;
import?android.os.Bundle;
import?android.os.Environment;
import?android.text.format.DateFormat;
import?android.util.Log;
import?android.view.KeyEvent;
import?android.view.SurfaceHolder;
import?android.view.SurfaceView;
import?android.view.View;
import?android.view.Window;
import?android.view.View.onclickListener;
import?android.widget.Button;

public?class?CameraDemoActivity?extends?Activity{

	private?final?static?String?TAG?=?“CameraActivity“;
	private?SurfaceView?surfaceView;
	private?SurfaceHolder?surfaceHolder;
	private?Camera?camera;
	private?File?picture;
	private?Button?btnSave;
	
	@Override
	public?void?onCreate（Bundle?savedInstanceState）?{
		super.onCreate（savedInstanceState）;
		setRequestedOrientation（ActivityInfo.SCREEN_ORIENTATION_PORTRAIT）;
		this.requestWindowFeature（Window.FEATURE_NO_title）;
		setContentView（R.layout.main）;
		setupViews（）;
	}
	
	private?void?setupViews（）{
		surfaceView?=?（SurfaceView）?findViewById（R.id.camera_preview）;?//?Camera?interface?to?instantiate?components
		surfaceHolder?=?surfaceView.getHolder（）;?//?Camera?interface?to?instantiate?components
		surfaceHolder.addCallback（surfaceCallback）;?//?Add?a?callback?for?the?SurfaceHolder
		surfaceHolder.setType（SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS）;
		
		btnSave?=?（Button）?findViewById（R.id.save_pic）;
		
		btnSave.setonclickListener（new?onclickListener（）?{
			
			@Override
			public?void?onclick（View?v）?{
				takePic（）;
			}
		}）;
	}
	
	
	@Override
	public?boolean?onkeydown（int?keyCode?KeyEvent?event）?{
		if?（keyCode?==?KeyEvent.KEYCODE_CAMERA
				||?keyCode?==?KeyEvent.KEYCODE_SEARCH）?{
			takePic（）;
			return?true;
		}
		return?super.onkeydown（keyCode?event）;
	}

	private?void?takePic（）?{

		camera.stopPreview（）;//?stop?the?preview

		camera.takePicture（null?null?pictureCallback）;?//?picture
	}

	//?Photo?call?back
	Camera.PictureCallback?pictureCallback?=?new?Camera.PictureCallback（）?{
		//@Override
		public?void?onPictureTaken（byte[]?data?Camera?camera）?{
			new?SavePictureTask（）.execute（data）;
			camera.startPreview（）;
		}
	};

	//?save?pic
	class?SavePictureTask?extends?AsyncTask?{
		@Override
		protected?String?doInBackground（byte[]...?params）?{
			String?fname?=?DateFormat.format（“yyyyMMddhhmmss“?new?Date（））.toString（）+“.jpg“;
			
			Log.i（TAG?“fname=“+fname+“;dir=“+Environment.getExternalStorageDirectory（））;
			//picture?=?new?File（Environment.getExternalStorageDirectory（）fname）;//?create?file
			
			picture?=?new?File（Environment.getExternalStorageDirectory（）+“/“+fname）;
			
			try?{
				FileOutputStream?fos?=?new?FileOutputStream（picture.getPath（））;?//?Get?file?output?stream
				fos.write（params[0]）;?//?Written?to?the?file
	

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????364??2011-11-29?15:53??CameraDemo\.classpath

?????文件????????846??2011-11-29?15:53??CameraDemo\.project

?????文件???????1614??2011-12-03?10:04??CameraDemo\AndroidManifest.xml

?????文件???????1248??2011-11-29?15:53??CameraDemo\proguard.cfg

?????文件????????361??2011-11-29?15:53??CameraDemo\project.properties

?????文件???????4147??2011-11-29?15:53??CameraDemo\res\drawable-hdpi\ic_launcher.png

?????文件???????1723??2011-11-29?15:53??CameraDemo\res\drawable-ldpi\ic_launcher.png

?????文件???????2574??2011-11-29?15:53??CameraDemo\res\drawable-mdpi\ic_launcher.png

?????文件????????752??2011-12-03?10:00??CameraDemo\res\layout\main.xml

?????文件????????163??2011-12-03?10:00??CameraDemo\res\values\strings.xml

?????文件???????4330??2011-12-03?10:04??CameraDemo\src\org\winplus\camera\CameraDemoActivity.java

?????目錄??????????0??2011-12-03?10:04??CameraDemo\src\org\winplus\camera

?????目錄??????????0??2011-12-03?10:04??CameraDemo\src\org\winplus

?????目錄??????????0??2011-12-03?10:04??CameraDemo\res\drawable-hdpi

?????目錄??????????0??2011-12-03?10:04??CameraDemo\res\drawable-ldpi

?????目錄??????????0??2011-12-03?10:04??CameraDemo\res\drawable-mdpi

?????目錄??????????0??2011-12-03?10:04??CameraDemo\res\layout

?????目錄??????????0??2011-12-03?10:04??CameraDemo\res\values

?????目錄??????????0??2011-12-03?10:04??CameraDemo\src\org

?????目錄??????????0??2011-12-03?10:04??CameraDemo\assets

?????目錄??????????0??2011-12-03?10:04??CameraDemo\res

?????目錄??????????0??2011-12-03?10:04??CameraDemo\src

?????目錄??????????0??2011-12-03?10:04??CameraDemo

-----------?---------??----------?-----??----

????????????????18122????????????????????23