Plurk paste

package irdc.ex07_16_1;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PointF;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.media.FaceDetector;
import android.media.FaceDetector.Face;
import android.os.Bundle;
import android.os.Environment;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Toast;

public class EX07_16_1 extends Activity implements SurfaceHolder.Callback
{
private Camera mCamera;
private Button mButton,mButton1,mButton2;
private SurfaceView mSurfaceView;
private SurfaceHolder holder;
private AutoFocusCallback mAutoFocusCallback =
new AutoFocusCallback();
private String rootpath="/sdcard/test";
private Bitmap bmp;
private int cnt=1;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
/* 隱藏狀態列 */
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
/* 隱藏標題列 */
requestWindowFeature(Window.FEATURE_NO_TITLE);
/* 設定螢幕顯示為橫向 */
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

setContentView(R.layout.main);
/* SurfaceHolder設定 */
mSurfaceView = (SurfaceView) findViewById(R.id.mSurfaceView);
holder = mSurfaceView.getHolder();
holder.addCallback(EX07_16_1.this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
/* Button初始化 */
mButton = (Button)findViewById(R.id.myButton);
//mButton1 = (Button)findViewById(R.id.myButton1);
//mButton2 = (Button)findViewById(R.id.myButton2);
/* 拍照Button的事件處理 */
mButton.setOnClickListener(new Button.OnClickListener()
{

@Override
public void onClick(View arg0)
{
takePicture();
/* 自動對焦後拍照 */
//mCamera.autoFocus(mAutoFocusCallback);
}
});
/* 存檔Button的事件處理 */
/* mButton1.setOnClickListener(new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
/* 儲存檔案 */
/* if(bmp!=null)
{
/* 檢視SDCard是否存在 */
/* if (!Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()))
{
/* SD卡不存在，顯示Toast訊息 */
/* Toast.makeText(EX07_16_1.this,"SD卡不存在!無法儲存相片",
Toast.LENGTH_LONG).show();
}
else
{
try
{*/
/* 資料夾不在就先建立 */
/* File f=new File
(
Environment.getExternalStorageDirectory(),path
);

if(!f.exists())
{
f.mkdir();
}
/* 儲存相片檔 */
/* File n=new File("face1.jpg");
FileOutputStream bos =
new FileOutputStream(n.getAbsolutePath());
/* 檔案轉換 */
/* bmp.compress(Bitmap.CompressFormat.JPEG, 100, bos);
/* 呼叫flush()方法，更新BufferStream */
/* bos.flush();
/* 結束OutputStream */
/* bos.close();

}
catch (Exception e)
{
e.printStackTrace();
}
}
}*/

mButton.setVisibility(View.VISIBLE);
/* mButton1.setVisibility(View.GONE);
mButton2.setVisibility(View.GONE);*/
/* 重新設定Camera */
stopCamera();
initCamera();
}
;
/* 放棄Button的事件處理 */
/* mButton2.setOnClickListener(new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
mButton.setVisibility(View.VISIBLE);
mButton1.setVisibility(View.GONE);
mButton2.setVisibility(View.GONE);
/* 重新設定Camera */
/*stopCamera();
initCamera();
}
});
}*/


@Override
public void surfaceCreated(SurfaceHolder surfaceholder)
{
try
{
/* 打開相機， */
mCamera = Camera.open();
mCamera.setPreviewDisplay(holder);
}
catch (IOException exception)
{
mCamera.release();
mCamera = null;
}
}

@Override
public void surfaceChanged(SurfaceHolder surfaceholder,
int format,int w,int h)
{
/* 相機初始化 */
initCamera();
}

@Override
public void surfaceDestroyed(SurfaceHolder surfaceholder)
{
stopCamera();
mCamera.release();
mCamera = null;
}

/* 拍照的method */
private void takePicture()
{

if (mCamera != null)
{
mCamera.takePicture(shutterCallback, rawCallback,jpegCallback);
/* 儲存檔案 */
if(bmp!=null)
{
/* 檢視SDCard是否存在 */
if (!Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()))
{
/* SD卡不存在，顯示Toast訊息 */
Toast.makeText(EX07_16_1.this,"SD卡不存在!無法儲存相片",
Toast.LENGTH_LONG).show();
}
else
{
try
{
/* 資料夾不在就先建立 */
File f=new File
(
Environment.getExternalStorageDirectory(),rootpath
);

if(!f.exists())
{
f.mkdir();
}
/* 儲存相片檔 */
File n=new File("face.jpg");
FileOutputStream bos =
new FileOutputStream(n.getAbsolutePath());
/* 檔案轉換 */
bmp.compress(Bitmap.CompressFormat.JPEG, 100, bos);
/* 呼叫flush()方法，更新BufferStream */
bos.flush();
/* 結束OutputStream */
bos.close();

}
catch (Exception e)
{
e.printStackTrace();
}
}
}
}
}



private ShutterCallback shutterCallback = new ShutterCallback()
{
public void onShutter()
{

/* 按下快門瞬間會呼叫這裡的程式 */
}
};

private PictureCallback rawCallback = new PictureCallback()
{
public void onPictureTaken(byte[] _data, Camera _camera)
{
/* 要處理raw data可寫在此 */
}
};

private PictureCallback jpegCallback = new PictureCallback()
{
public void onPictureTaken(byte[] _data, Camera _camera)
{
/* 取得相片 */
try
{
/* 設定Button可視性 */
mButton.setVisibility(View.GONE);
mButton1.setVisibility(View.VISIBLE);
mButton2.setVisibility(View.VISIBLE);
/* 取得相片Bitmap物件 */
bmp = BitmapFactory.decodeByteArray(_data, 0,_data.length);
}
catch (Exception e)
{
e.printStackTrace();
}
}
};

/* 自定義class AutoFocusCallback */
public final class AutoFocusCallback implements android.hardware.Camera.AutoFocusCallback
{
public void onAutoFocus(boolean focused, Camera camera)
{
/* 對到焦才拍照 */


//takePicture();

}
};

/* 相機初始化的method */
private void initCamera()
{
if (mCamera != null)
{
try
{
Camera.Parameters parameters = mCamera.getParameters();
/* 設定相片大小為1024*768，
格式為JPG */
parameters.setPictureFormat(PixelFormat.JPEG);
parameters.setPictureSize(1024,768);
mCamera.setParameters(parameters);
/* 開啟預覽畫面 */
mCamera.startPreview();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

/* 停止相機的method */
private void stopCamera()
{
if (mCamera != null)
{
try
{
/* 停止預覽 */
mCamera.stopPreview();
}
catch(Exception e)
{
e.printStackTrace();
}
}
}

/*private class myView extends View{

private String rootpath="/sdcard/test/face1.jpg";
private int imageWidth, imageHeight;
private int numberOfFace = 5;
private FaceDetector myFaceDetect;
private FaceDetector.Face[] myFace;
float myEyesDistance;
int numberOfFaceDetected;

Bitmap myBitmap;
public myView(Context context) {
super(context);
// TODO Auto-generated constructor stub

BitmapFactory.Options BitmapFactoryOptionsbfo = new BitmapFactory.Options();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 2;
myBitmap = BitmapFactory.decodeFile(rootpath,options);
imageWidth = myBitmap.getWidth();
imageHeight = myBitmap.getHeight();
myFace = new FaceDetector.Face[numberOfFace];
myFaceDetect = new FaceDetector(imageWidth, imageHeight, numberOfFace);
numberOfFaceDetected = myFaceDetect.findFaces(myBitmap, myFace);

}

protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub

canvas.drawBitmap(myBitmap, 0, 0, null);

Paint myPaint = new Paint();
myPaint.setColor(Color.GREEN);
myPaint.setStyle(Paint.Style.STROKE);
myPaint.setStrokeWidth(3);

for(int i=0; i < numberOfFaceDetected; i++)
{
Face face = myFace[i];
PointF myMidPoint = new PointF();
face.getMidPoint(myMidPoint);
myEyesDistance = face.eyesDistance();
canvas.drawRect(
(int)(myMidPoint.x - myEyesDistance),
(int)(myMidPoint.y - myEyesDistance),
(int)(myMidPoint.x + myEyesDistance),
(int)(myMidPoint.y + myEyesDistance),
myPaint);
}
}
}*/
}