/** 
	 * 拍照
	 */
	private void takePhoto() {
		//獲取系統版本  
        int currentapiVersion = android.os.Build.VERSION.SDK_INT;
		// 判斷儲存卡是否可以用，可用進行儲存  
		if (Environment.getExternalStorageState().equals(
				Environment.MEDIA_MOUNTED)) {
			fileName = getFileName();
			dirPath = Environment.getExternalStorageDirectory().getPath();
			File tempFile = new File(dirPath);
			if (!tempFile.exists()) {
				tempFile.mkdirs();
			}
			File saveFile = new File(tempFile, fileName + ".jpg");
			Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
			if (currentapiVersion < 24) {  
                // 從檔案中建立uri  
                Uri uri = Uri.fromFile(saveFile);  
                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);  
            } else {  
                //相容android7.0 使用共享檔案的形式  
                ContentValues contentValues = new ContentValues(1);  
                contentValues.put(MediaStore.Images.Media.DATA, saveFile.getAbsolutePath());  
                Uri uri = getApplication().getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues);  
                intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);  
            }  
			startActivityForResult(intent, PHOTO_GRAPH);
		} else {
			Toast.makeText(PicSelectActivity.this, "未檢測到CDcard，拍照不可用!",
					Toast.LENGTH_SHORT).show();
		}		
		
	}