拍照必须设置权限：

1、布局main.xml

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SurfaceHolder

mySurfaceHolder.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 stub

switch (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() {

@Override

public void onShutter() {

// TODO Auto-generated method stub

}

};

//照片二进制流生成

PictureCallback myRawCallback = new PictureCallback() {

@Override

public void onPictureTaken(byte[] data, Camera camera) {

// TODO Auto-generated method stub

}

};

//预览图片

PictureCallback myjpegCallback = new PictureCallback(){

@Override

public 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

}

};