android自定義相機拍照類0001

1、importjava.io.BufferedOutputStream;importjava.io.File;import java.io.FileOutputStream;importandroid.app.Activity;importandroid.content.Intent;importandroid.graphics.Bitmap;importandroid.graphics.BitmapFactory;importandroid.graphics.Matrix;importandroid.os.Bundle;importandroid.view.View;importandroid

2、.view.View.OnClickListener;importandroid.widget.Button;importandroid.widget.ImageView;public class Main extends Activity implements OnClickListenerpublicImageViewimageView;Overridepublic void onCreate(Bundle savedInstanceState)super.onCreate(savedInstanceState); setContentView(R.layout.main);(Button

3、)Button btnTakePicture = findViewById(R.id.btnTakePicture);btnTakePicture.setOnClickListener(this);imageView = (ImageView) findViewById(R.id.imageview);OverrideintresultCode,protected void onActivityResult(intrequestCode,Intent data)if (requestCode = 1)if (resultCode = 20)System.out.println(c+System

4、.currentTimeMillis();Bitmap cameraBitmap;byte bytes = data.getExtras().getByteArray(bytes); cameraBitmap = BitmapFactory.decodeByteArray(bytes,bytes.length);0,Matrix matrix = new Matrix();matrix.setRotate(CameraPreview.getPreviewDegree(this);cameraBitmap = Bitmap.createBitmap(cameraBitmap, 0,0,camer

5、aBitmap.getWidth(),cameraBitmap.getHeight(),newmatrix, true);File myCaptureFileFile(/sdcard/+System.currentTimeMillis()+.jpg);trynewBufferedOutputStreambosBufferedOutputStream(newFileOutputStream(myCaptureFile);100,cameraBpress(Bitmap.CompressFormat.JPEG, bos);bos.flush();bos.close();imageView.setIm

6、ageBitmap(cameraBitmap);System.out.println(-);catch (Exception e)super.onActivityResult(requestCode, resultCode, data);Overridepublic void onClick(View view)Intent intent = new Intent(this, CameraPreview.class); startActivityForResult(intent, 1);packagemobile.android.custom.camera;importjava.io.IOEx

7、ception;importandroid.app.Activity;importandroid.content.Context;importandroid.graphics.PixelFormat;importandroid.hardware.Camera; importandroid.hardware.Camera.AutoFocusCallback; importandroid.hardware.Camera.PictureCallback; importandroid.os.Bundle;importandroid.util.AttributeSet;importandroid.vie

8、w.MotionEvent;importandroid.view.Surface;importandroid.view.SurfaceHolder;importandroid.view.SurfaceView; importandroid.view.ViewGroup.LayoutParams; importandroid.view.Window;importandroid.widget.ImageView;importandroid.widget.ImageView .ScaleType;public class CameraPreview extends Activityprivate P

9、review preview;privateImageViewivFocus;Overridepublic void onCreate(Bundle savedInstanceState)super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); preview = new Preview(this); setContentView(preview);ivFocus = new ImageView(this);OverridepublicbooleanonTouchEvent(Motion

10、Event event)if (event.getAction() = MotionEvent.ACTION_DOWN) preview.takePicture();System.out.println(a+System.currentTimeMillis(); returnsuper.onTouchEvent(event);public static intgetPreviewDegree(Activity activity)int rotation = activity.getWindowManager().getDefaultDisplay() .getRotation();int de

11、gree = 0;switch (rotation)case Surface.ROTATION_0: degree = 90; break;case Surface.ROTATION_90: degree = 0; break;case Surface.ROTATION_180: degree = 270; break;case Surface.ROTATION_270: degree = 180; break;return degree;class Preview extends SurfaceView implements SurfaceHolder.Callback privateSur

12、faceHolder holder; private Camera camera;public Preview(Context context, AttributeSetattrs)super(context, attrs);/ TODO Auto-generated constructor stubprivatePictureCallbackpictureCallback = new PictureCallback() Override public void onPictureTaken(byte data, Camera camera) System.out.println(b+Syst

13、em.currentTimeMillis(); getIntent().putExtra(bytes, data); setResult(20, getIntent();camera.stopPreview(); camera = null;finish();public Preview(Context context) super(context);holder = getHolder();holder.addCallback(this);holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);public void surfaceCr

14、eated(SurfaceHolder holder) camera = Camera.open();trycamera.setPreviewDisplay(holder);catch (IOException exception)camera.release(); camera = null;public void surfaceDestroyed(SurfaceHolder holder)camera.release();public void surfaceChanged(final SurfaceHolder holder, int format, int w, int h)tryCa

15、mera.Parameters parameters = camera.getParameters();parameters.setPictureFormat(PixelFormat.JPEG);parameters.setPreviewSize(w, h); parameters.setPictureSize(w , h);camera.setParameters(parameters);camera.setDisplayOrientation(getPreviewDegree(CameraPreview.this);camera.startPreview();ivFocus.setImageResource(R.drawable.focus1);LayoutParamslayoutParams = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); ivFocus.setScaleType(ScaleType.CENTER); addContentView(ivFocus, layoutParams); ivFocus.setVisibility(VISIBLE);camera.autoFocus(new Aut