alert---点击拍照弹出对话框

    /**
     * 照片对话框
     *AlertDialog
     */
    private void PhotoDialog() {
        AlertDialog.Builder builder = new Builder(mContext);     //  mContext上下文
        builder.setTitle("上传照片至开心网");
        builder.setItems(new String[] { "拍照上传", "上传手机中的照片" },
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        Intent intent = null;
                        switch (which) {   
                        case 0:   //点击是拍照上传  
                            intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                            File dir = new File("/sdcard/KaiXin/Camera/");
                            if (!dir.exists()) {    // 不存在
                                dir.mkdirs();     
                            }
                            mKXApplication.mUploadPhotoPath = "/sdcard/KaiXin/Camera/"
                                    + UUID.randomUUID().toString();        //保存图片到sd卡的名字
                            File file = new File(mKXApplication.mUploadPhotoPath);
                            if (!file.exists()) {  // 不存在
                                try {
                                    file.createNewFile();
                                } catch (IOException e) {
                                }
                            }
                            intent.putExtra(MediaStore.EXTRA_OUTPUT,
                                    Uri.fromFile(file));
                            mActivity.startActivityForResult( intent,
                                            ActivityForResultUtil.REQUESTCODE_UPLOADPHOTO_CAMERA);
                            break;

                        case 1:  //上传手机中的照片
                            mContext.startActivity(new Intent(mContext,
                                    PhoneAlbumActivity.class));
                            break; 
                        }
                    }
                });
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();   // 取消
            }
        });
        builder.create().show();
    }