打开Android系统的相册，和相机

  //系统相册请求码
    private final static int REQUESTCODE_GALLERY = 100;

    //系统相机请求码
    private final static int REQUESTCODE_CAMERA = 101;

//进入系统相册
                        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
                        intent.setType("image/*");
                        startActivityForResult(intent, REQUESTCODE_GALLERY);

 //进入相机
                        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

 //把拍照生成图片的路径传过去
                        Uri uri = getUriFormFile(HEADER_PATH);
                        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
                        startActivityForResult(intent, REQUESTCODE_CAMERA);