Camera 照相问题.

来源：互联网发布：mac os安装失败编辑：程序博客网时间：2024/05/02 02:23

package com.scan;

import java.io.IOException;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.hardware.Camera.PictureCallback;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.view.LayoutInflater;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.PopupWindow;

import com.scan.adapter.FrameAdapter;
import com.scan.listener.CameraframeListener;

public class TakePhotoActivity extends Activity implements
SurfaceHolder.Callback, OnClickListener {

private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder;
private Camera mCamera;
/**
* 调节焦距的大小
*/
private ImageView scaleButton;
private ImageView smallButton;
private boolean mPreviewRunning;
private ImageView mImageView;

private Button frameButton;

private Button switchButton;

private FrameAdapter frameAdapter;

private LinearLayout camerabg;
public void makeHasColor(View v,int id)
{
  v.setBackgroundResource(id);
}

public void hideColor(View v,int id)
{
  v.setBackgroundResource(id);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  requestWindowFeature(Window.FEATURE_NO_TITLE);
  setContentView(R.layout.takephoto);
  initViews();

}

public void initViews()
{
  camerabg=(LinearLayout)findViewById(R.id.camerabottom);
  mSurfaceView = (SurfaceView) findViewById(R.id.surfaceview);
  mImageView = (ImageView) findViewById(R.id.image);

  scaleButton=(ImageView)findViewById(R.id.scalebig);
  switchButton=(Button)findViewById(R.id.switchbutton);
  switchButton.setOnClickListener(new OnClickListener(){

@Override
public void onClick(View v) {

    hideColor(frameButton,R.drawable.frame);
    hideColor(smallButton,R.drawable.camera_scalesmall);
    makeHasColor(switchButton,R.drawable.camera_switch_down);
    hideColor(scaleButton, R.drawable.camera_scalebig);
    Intent i = new Intent(TakePhotoActivity.this,MainActivity.class);
    startActivity(i);
    finish();
   }});
  scaleButton.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View v) {

    makeHasColor(scaleButton, R.drawable.camera_scalebig_down);
    hideColor(frameButton,R.drawable.frame);
    hideColor(smallButton,R.drawable.camera_scalesmall);
    hideColor(switchButton,R.drawable.camera_switch);

    Parameters params = mCamera.getParameters();
    params.setPictureFormat(PixelFormat.JPEG);// 设置图片格式
    int a=params.getZoom();
    System.out.println("zboolea--->"+params.isZoomSupported());
    System.out.println("zomm----->"+a);
    //params.setZoom(10);
    params.setPreviewSize(800, 400);
    mCamera.setParameters(params);
   }});

smallButton=(ImageView)findViewById(R.id.small);
smallButton.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View v) {
    hideColor(frameButton,R.drawable.frame);
    makeHasColor(smallButton,R.drawable.camera_scalesmall_down);
    hideColor(switchButton,R.drawable.camera_switch);
    hideColor(scaleButton, R.drawable.camera_scalebig);

   }});

  mSurfaceHolder = mSurfaceView.getHolder();
  mSurfaceHolder.addCallback(this);
  mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
  mSurfaceView.setOnClickListener(this);

  frameButton=(Button)findViewById(R.id.frame);
  frameButton.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View v) {

    makeHasColor(frameButton,R.drawable.frame_down);
    hideColor(smallButton,R.drawable.camera_scalesmall);
    hideColor(switchButton,R.drawable.camera_switch);
    hideColor(scaleButton, R.drawable.camera_scalebig);
    showFrameDialog();


   }});
}
@Override
public void onClick(View v) {
  mCamera.takePicture(null, null, mPictureCallback);
}
/**
* 2.3 的调用方法
* 2.2 的怎么调用呢.
*/

@Override
public void surfaceCreated(SurfaceHolder holder) {

  mCamera =Camera.open();
  try {
   mCamera.setPreviewDisplay(holder);
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  // TODO Auto-generated method stub
  //mCamera = Camera.open();
//  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
//      for (int i = 0; i < Camera.getNumberOfCameras(); i++) {
//       Camera.CameraInfo info = new Camera.CameraInfo();
//       Camera.getCameraInfo(i, info);
//       if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {//这就是前置摄像头，亲。
//       mCamera = Camera.open(i);
//       }
//      }
//     }
//     if (mCamera == null) {
//      mCamera = Camera.open();
//     }
//  try {
//   mCamera.setPreviewDisplay(holder);
//  } catch (IOException e) {
//   // TODO Auto-generated catch block
//   e.printStackTrace();
//  }
}

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {

  System.out.println("witdht---->"+width);

  System.out.println("height---->"+height);
  if (mPreviewRunning) {
   mCamera.stopPreview();
  }
  mPreviewRunning = true;
  Parameters params = mCamera.getParameters();
  //params.set("camera-id", 2);
  //params.set("video_input","secondary");
  params.setPictureFormat(PixelFormat.JPEG);// 设置图片格式
  params.setPreviewSize(width, height);
//  params.set("rotation", 180);
//  params.set("orientation", "portrait");
  mCamera.setParameters(params);

  System.out.println("Parametesr------>"+mCamera.getParameters().toString());
  mCamera.startPreview();

}

@Override
public void surfaceDestroyed(SurfaceHolder holder) {
  // TODO Auto-generated method stub
  mCamera.setPreviewCallback(null) ;
  mCamera.stopPreview();
  mPreviewRunning = false;
  mCamera.release();
  mCamera = null;

}

/**
* 拍照的回调接口
*/
PictureCallback mPictureCallback = new PictureCallback() {
  @Override
  public void onPictureTaken(byte[] data, Camera camera) {
   if (data != null) {
    System.out.println("data---------------.");
    Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0,
      data.length);
    /**
     * 将拍到的照片绘制出来
     */

    writeTosdcard();




//    Canvas canvas =mSurfaceHolder.lockCanvas();
//    canvas.drawBitmap(bitmap, 0, 0, null);
//    mSurfaceHolder.unlockCanvasAndPost(canvas);
    mImageView.setImageBitmap(bitmap);

    mImageView.setVisibility(View.VISIBLE);
    mSurfaceView.setVisibility(View.GONE);
    if (mPreviewRunning) {
     mCamera.stopPreview();
     mPreviewRunning = false;
    }
   }
  }
};

private PopupWindow framePopupWindow;
/**
* 显示frame dialog
* dialog 如果里面存着这listview ,gridview
* 必须要设定大小.
*/
public void showFrameDialog()
{
  System.out.println("shwoFrameDialog---.");
  View view = LayoutInflater.from(TakePhotoActivity.this).inflate(R.layout.camera_frame, null);
  ListView listview =(ListView)view.findViewById(R.id.gridview);
  frameAdapter= new FrameAdapter(TakePhotoActivity.this);
  frameAdapter.setCurrentPosition(0);
     listview.setAdapter(frameAdapter);

//  listview.setOnItemClickListener(new ListView.OnItemClickListener(){
//
//   @Override
//   public void onItemClick(AdapterView<?> parent, View view,
//     int position, long id) {
//
//    System.out.println("onItem");
//    frameAdapter.setCurrentPosition(position);
//    frameAdapter.notifyDataSetChanged();
//
//   }});

  framePopupWindow = new PopupWindow(view);
  framePopupWindow.setWidth(110);
  framePopupWindow.setHeight(200);
  framePopupWindow.setFocusable(true);
  //framePopupWindow.setBackgroundDrawable(new ColorDrawable(Color.BLUE));
  framePopupWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.camera_popup_bg));
  framePopupWindow.showAsDropDown(frameButton, -10, 0);

}

CameraframeListener listener = new CameraframeListener() {

  @Override
  public void changeColor(int position) {


   switch (position) {
   case 0:
    camerabg.setBackgroundResource(R.drawable.camera_autumncolor);
    break;

   case 1:
    camerabg.setBackgroundResource(R.drawable.camera_autumncolor);
    break;
   case 2:
    camerabg.setBackgroundResource(R.drawable.camera_greencolor);
    break;
   case 3:
    camerabg.setBackgroundResource(R.drawable.camera_fashioncolor);
    break;
   default:
    break;
   }

  }

};
@Override
protected void onDestroy() {
  // TODO Auto-generated method stub
  super.onDestroy();
  if(framePopupWindow !=null &&framePopupWindow.isShowing())
  {
   framePopupWindow.dismiss();
  }

}

public void writeTosdcard()
{
        String str =Environment.getExternalStorageState();
}
// public int getFrontCameraId()
// {
//
// int tap= Build.VERSION.SDK_INT;
// if(tap>=9)
// {
//  Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
//  for(int i=0;i<Camera.getNumberOfCameras();i++)
//  {
//   Camera.getCameraInfo(i, cameraInfo);
//   if(Camera.CameraInfo.CAMERA_FACING_FRONT==cameraInfo.facing)
//   {
//    return i;
//   }
//
//  }
//  return 0;
//
// }
// else
// {
//  return 0;
// }
// }

}