<!-- lang: xml -->
拍照必须设置权限：

<uses-permission android:name="android.permission.CAMERA"/>

1、布局main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center_horizontal" > <SurfaceView android:id="@+id/mySurfaceView" android:gravity="center_horizontal" android:layout_width="wrap_content" android:layout_height="200px" /> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center_horizontal" > <Button android:id="@+id/btnOpen" android:textSize="18px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="打开" /> <Button android:id="@+id/btnClose" android:textSize="18px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="关闭" /> <Button android:id="@+id/btnTake" android:textSize="18px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="拍照" /> </LinearLayout>
<ImageView android:id="@+id/myImageView" android:layout_width="wrap_content" android:layout_height="wrap_content"/> </LinearLayout>

<!-- lang: java -->
2、初始化组件：
private SurfaceView mySurfaceView = null;//SurfaceView的引用
private SurfaceHolder mySurfaceHolder = null;//SurfaceHolder的引用
private Button btnOpen = null;//打开按钮
private Button btnClose = null;//关闭按钮
private Button btnTake = null;//拍照按钮

添加监听器：OnClickListener, SurfaceHolder.Callback super.onCreate(savedInstanceState);

   //全屏requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN ,  WindowManager.LayoutParams.FLAG_FULLSCREEN);setContentView(R.layout.main);mySurfaceView = (SurfaceView) findViewById(R.id.mySurfaceView);//得到SurfaceView的引用btnOpen = (Button) findViewById(R.id.btnOpen);//得到按钮的引用btnClose = (Button) findViewById(R.id.btnClose);//得到按钮的引用btnTake = (Button) findViewById(R.id.btnTake);//得到按钮的引用btnOpen.setOnClickListener(this);//为按钮添加监听btnClose.setOnClickListener(this);//为按钮添加监听btnTake.setOnClickListener(this);//为按钮添加监听mySurfaceHolder = mySurfaceView.getHolder();//获得SurfaceHoldermySurfaceHolder.addCallback(this);//添加接口的实现mySurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

3、使用CAMERA拍照 private Camera myCamera = null;//Camera的引用 boolean isView = false;//是否在浏览中

1）、初始化照相机:

public void initCamera(){ if(!isView){ myCamera = Camera.open(); } if(myCamera != null && !isView){ try { Camera.Parameters myParameters = myCamera.getParameters(); myParameters.setPictureFormat(PixelFormat.JPEG); //真机删除setPreviewSize方法 myParameters.setPreviewSize(200, 200);//屏幕大小 myCamera.setParameters(myParameters); myCamera.setPreviewDisplay(mySurfaceHolder); myCamera.startPreview();//立即运行Preview } catch (IOException e) {//捕获异常 e.printStackTrace();//打印错误信息 } isView = true; } }

2、打开/关闭和拍照@Override
public void onClick(View v) {// TODO Auto-generated method stubswitch (v.getId()) {//打开照相机case R.id.btnOpen:initCamera();break;case R.id.btnClose:if(myCamera != null && isView){//当正在显示时isView = false;myCamera.stopPreview();myCamera.release();myCamera = null;}break;//拍照case R.id.btnTake:myCamera.takePicture
(myShutterCallback, myRawCallback, myjpegCallback);break;}
}//相机快门关闭
ShutterCallback myShutterCallback = new ShutterCallback() {@Overridepublic void onShutter() {// TODO Auto-generated method stub}
};//照片二进制流生成
PictureCallback myRawCallback = new PictureCallback() {@Overridepublic void onPictureTaken(byte[] data, Camera camera) {// TODO Auto-generated method stub}
};//预览图片
PictureCallback myjpegCallback = new PictureCallback(){@Overridepublic void onPictureTaken(byte[] data, Camera camera) {Bitmap bm = BitmapFactory.decodeByteArray(data, 0, data.length);ImageView myImageView = (ImageView) findViewById(R.id.myImageView);myImageView.setImageBitmap(bm);//将图片显示到下方的ImageView中isView = false;myCamera.stopPreview();myCamera.release();myCamera = null;initCamera();//初始化相机}
};