Android基础学习之检察SD卡是否存在，获取SD卡根路径

<pre name="code" class="java">	/**	 * 获取设备根路径--ExternalStorageDirectory	 * 	 * @param context	 * @return	 */	public static String getRootPath(Context context) {		String path = Environment.getExternalStorageDirectory().getPath();		return path;	}

	/**	 * 判断设备sdcard是否存在	 * 	 * @param context	 * @return	 */	public static boolean isExistSdCard(Context context) {		if (Environment.getExternalStorageState().equals(				Environment.MEDIA_MOUNTED)) {			return true;		}		return false;	}