{"id":62154,"date":"2026-01-19T13:41:53","date_gmt":"2026-01-19T05:41:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/62154.html"},"modified":"2026-01-19T13:41:53","modified_gmt":"2026-01-19T05:41:53","slug":"flutter-for-openharmony-%e5%81%a5%e5%ba%b7%e7%ae%a1%e7%90%86app%e5%ba%94%e7%94%a8%e5%ae%9e%e6%88%98-%e9%a5%ae%e6%b0%b4%e5%8d%a1%e7%89%87%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/62154.html","title":{"rendered":"Flutter for OpenHarmony \u5065\u5eb7\u7ba1\u7406App\u5e94\u7528\u5b9e\u6218 - \u996e\u6c34\u5361\u7247\u5b9e\u73b0"},"content":{"rendered":"

\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u5199\u5728\u524d\u9762<\/h3>\n

\u559d\u6c34\u662f\u5065\u5eb7\u751f\u6d3b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206，\u5f88\u591a\u4eba\u5fd9\u8d77\u6765\u5c31\u5fd8\u4e86\u559d\u6c34\u3002\u6211\u4eec\u7684\u5065\u5eb7\u7ba1\u7406App\u63d0\u4f9b\u4e86\u4e00\u4e2a\u996e\u6c34\u8ffd\u8e2a\u529f\u80fd，\u7528\u6237\u53ef\u4ee5\u8bb0\u5f55\u6bcf\u5929\u559d\u4e86\u591a\u5c11\u676f\u6c34，\u5361\u7247\u4f1a\u663e\u793a\u8fdb\u5ea6\u548c\u603b\u91cf\u3002<\/p>\n

\u996e\u6c34\u5361\u7247\u7684\u4ea4\u4e92\u6bd4\u8f83\u6709\u610f\u601d：\u7528\u6237\u53ef\u4ee5\u70b9\u51fb\u676f\u5b50\u56fe\u6807\u6765\u8bb0\u5f55\u559d\u6c34，\u4e5f\u53ef\u4ee5\u7528\u52a0\u51cf\u6309\u94ae\u5feb\u901f\u8c03\u6574\u3002\u8fd9\u7bc7\u6587\u7ae0\u6211\u4eec\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n

\n

\u8bbe\u8ba1\u5206\u6790<\/h3>\n

\u996e\u6c34\u5361\u7247\u7684\u5e03\u5c40\u4ece\u4e0a\u5230\u4e0b\u4f9d\u6b21\u662f：<\/p>\n

  • \u6807\u9898\u680f – \u663e\u793a"\u996e\u6c34"\u548c\u5f53\u524d\u8fdb\u5ea6（\u5982"3 \/ 8 \u676f"）<\/li>\n
  • \u676f\u5b50\u56fe\u6807\u884c – 8\u4e2a\u676f\u5b50\u56fe\u6807，\u5df2\u559d\u7684\u663e\u793a\u586b\u5145\u72b6\u6001<\/li>\n
  • \u8fdb\u5ea6\u6761 – \u663e\u793a\u5b8c\u6210\u767e\u5206\u6bd4<\/li>\n
  • \u5feb\u6377\u6309\u94ae – \u52a0\u51cf\u6309\u94ae\u548c\u5f53\u524d\u6beb\u5347\u6570<\/li>\n

    \u6bcf\u65e5\u76ee\u6807\u662f8\u676f\u6c34，\u6bcf\u676f250\u6beb\u5347，\u603b\u51712000\u6beb\u5347\u3002\u8fd9\u662f\u4e00\u4e2a\u6bd4\u8f83\u901a\u7528\u7684\u6807\u51c6，\u5f53\u7136\u5b9e\u9645\u9700\u6c42\u56e0\u4eba\u800c\u5f02\u3002<\/p>\n

    \n

    \u5bfc\u5165\u4f9d\u8d56<\/h3>\n

    import<\/span> 'package:flutter\/material.dart'<\/span><\/span>;<\/span>
    \nimport<\/span> 'package:provider\/provider.dart'<\/span><\/span>;<\/span>
    \nimport<\/span> '..\/utils\/colors.dart'<\/span><\/span>;<\/span>
    \nimport<\/span> '..\/l10n\/app_localizations.dart'<\/span><\/span>;<\/span>
    \nimport<\/span> '..\/providers\/user_provider.dart'<\/span><\/span>;<\/span><\/p>\n

    \u5173\u4e8e\u8fd9\u4e9b\u5bfc\u5165\u7684\u8bf4\u660e：<\/p>\n

    \u996e\u6c34\u6570\u636e\u5b58\u50a8\u5728 UserProvider \u4e2d，\u56e0\u4e3a\u5b83\u5c5e\u4e8e\u7528\u6237\u7684\u6bcf\u65e5\u8bb0\u5f55，\u548c\u98df\u7269\u8bb0\u5f55\u662f\u5206\u5f00\u7684\u3002\u8fd9\u6837\u7684\u8bbe\u8ba1\u8ba9\u6570\u636e\u7ba1\u7406\u66f4\u6e05\u6670，\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u7531\u4e0d\u540c\u7684Provider\u7ba1\u7406\u3002<\/p>\n

    \n

    \u5b9a\u4e49\u5e38\u91cf<\/h3>\n

    class<\/span> WaterCard<\/span> extends<\/span> StatelessWidget<\/span> {<\/span>
    \n const<\/span> WaterCard<\/span>(<\/span>{<\/span>super<\/span>.<\/span>key}<\/span>)<\/span>;<\/span><\/p>\n

    static<\/span> const<\/span> int dailyGoal =<\/span> 8<\/span>;<\/span><\/p>\n

    \u5e38\u91cf\u5b9a\u4e49\u7684\u597d\u5904：<\/p>\n

    \u6bcf\u65e5\u76ee\u6807\u5b9a\u4e49\u4e3a\u9759\u6001\u5e38\u91cf，\u65b9\u4fbf\u540e\u7eed\u4fee\u6539\u3002\u5982\u679c\u5c06\u6765\u8981\u652f\u6301\u7528\u6237\u81ea\u5b9a\u4e49\u76ee\u6807，\u53ef\u4ee5\u628a\u8fd9\u4e2a\u503c\u6539\u6210\u4eceProvider\u83b7\u53d6\u3002\u8fd9\u6837\u7684\u8bbe\u8ba1\u8ba9\u4ee3\u7801\u66f4\u7075\u6d3b，\u4e0d\u7528\u5230\u5904\u4fee\u6539\u786c\u7f16\u7801\u7684\u6570\u5b57\u3002<\/p>\n

    \n

    \u83b7\u53d6\u4e3b\u9898\u548c\u6570\u636e<\/h3>\n

    @override<\/span>
    \nWidget<\/span> build<\/span>(<\/span>BuildContext<\/span> context)<\/span> {<\/span>
    \n final<\/span> colors =<\/span> context.<\/span>appColors;<\/span>
    \n final<\/span> l10n =<\/span> context.<\/span>l10n;<\/span>
    \n final<\/span> isDark =<\/span> Theme<\/span>.<\/span>of<\/span>(<\/span>context)<\/span>.<\/span>brightness ==<\/span> Brightness<\/span>.<\/span>dark;<\/span>
    \n final<\/span> primaryColor =<\/span> isDark ?<\/span> AppColors<\/span>.<\/span>primaryLight :<\/span> AppColors<\/span>.<\/span>primary;<\/span><\/p>\n

    return<\/span> Consumer<\/span><<\/span>UserProvider<\/span>><\/span><\/span>(<\/span>
    \n builder:<\/span> (<\/span>context,<\/span> provider,<\/span> _)<\/span> {<\/span>
    \n final<\/span> cups =<\/span> provider.<\/span>todayRecord.<\/span>waterCups;<\/span>
    \n final<\/span> progress =<\/span> (<\/span>cups \/<\/span> dailyGoal)<\/span>.<\/span>clamp<\/span>(<\/span>0.0<\/span>,<\/span> 1.0<\/span>)<\/span>;<\/span><\/p>\n

    \u6570\u636e\u83b7\u53d6\u548c\u8ba1\u7b97：<\/p>\n

    \u4eceProvider\u83b7\u53d6\u4eca\u65e5\u5df2\u559d\u7684\u676f\u6570，\u8ba1\u7b97\u8fdb\u5ea6\u767e\u5206\u6bd4\u3002clamp(0.0, 1.0) \u786e\u4fdd\u8fdb\u5ea6\u503c\u57280\u52301\u4e4b\u95f4，\u9632\u6b62\u8d85\u8fc7100%\u3002<\/p>\n

    primaryColor \u6839\u636e\u6df1\u8272\u6a21\u5f0f\u9009\u62e9\u4e0d\u540c\u7684\u989c\u8272，\u540e\u9762\u4f1a\u591a\u6b21\u7528\u5230，\u6240\u4ee5\u63d0\u524d\u5b9a\u4e49\u597d\u3002\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u91cd\u590d\u7684\u4e09\u5143\u8868\u8fbe\u5f0f\u5224\u65ad\u3002<\/p>\n

    \n

    \u5361\u7247\u5bb9\u5668<\/h3>\n

    return<\/span> Container<\/span>(<\/span>
    \n padding:<\/span> const<\/span> EdgeInsets<\/span>.<\/span>all<\/span>(<\/span>20<\/span>)<\/span>,<\/span>
    \n decoration:<\/span> BoxDecoration<\/span>(<\/span>
    \n color:<\/span> colors.<\/span>cardBackground,<\/span>
    \n borderRadius:<\/span> BorderRadius<\/span>.<\/span>circular<\/span>(<\/span>20<\/span>)<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n child:<\/span> Column<\/span>(<\/span>
    \n crossAxisAlignment:<\/span> CrossAxisAlignment<\/span>.<\/span>start,<\/span>
    \n children:<\/span> [<\/span><\/p>\n

    \u5bb9\u5668\u7684\u8bbe\u8ba1：<\/p>\n

    \u548c\u5176\u4ed6\u5361\u7247\u4e00\u6837，20\u50cf\u7d20\u5185\u8fb9\u8ddd，20\u50cf\u7d20\u5706\u89d2\u3002\u8fd9\u6837\u7684\u8bbe\u8ba1\u4fdd\u6301\u4e86\u6574\u4e2aApp\u7684\u89c6\u89c9\u4e00\u81f4\u6027\u3002<\/p>\n

    \n

    \u6807\u9898\u680f<\/h3>\n

    Row<\/span>(<\/span>
    \n mainAxisAlignment:<\/span> MainAxisAlignment<\/span>.<\/span>spaceBetween,<\/span>
    \n children:<\/span> [<\/span>
    \n Text<\/span>(<\/span>
    \n l10n.<\/span>water,<\/span>
    \n style:<\/span> TextStyle<\/span>(<\/span>
    \n fontSize:<\/span> 16<\/span>,<\/span>
    \n fontWeight:<\/span> FontWeight<\/span>.<\/span>w600,<\/span>
    \n color:<\/span> primaryColor,<\/span>
    \n )<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n Text<\/span>(<\/span>
    \n '<\/span>$<\/span>cups<\/span><\/span> \/ <\/span>$<\/span>dailyGoal<\/span><\/span> <\/span>${<\/span>l10n.<\/span>cups<\/span>}<\/span><\/span>'<\/span><\/span>,<\/span>
    \n style:<\/span> TextStyle<\/span>(<\/span>fontSize:<\/span> 14<\/span>,<\/span> color:<\/span> colors.<\/span>textSecondary)<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n ]<\/span>,<\/span>
    \n)<\/span>,<\/span><\/p>\n

    \u6807\u9898\u680f\u7684\u5e03\u5c40：<\/p>\n

    \u5de6\u8fb9\u662f"\u996e\u6c34"\u6807\u9898，\u53f3\u8fb9\u663e\u793a\u5f53\u524d\u8fdb\u5ea6，\u5982"3 \/ 8 \u676f"\u3002\u8fd9\u6837\u7528\u6237\u4e00\u773c\u5c31\u80fd\u770b\u5230\u4eca\u5929\u7684\u996e\u6c34\u8fdb\u5ea6\u3002<\/p>\n

    \u6807\u9898\u7528\u4e3b\u9898\u8272，\u8fdb\u5ea6\u7528\u6b21\u8981\u6587\u5b57\u8272，\u5f62\u6210\u89c6\u89c9\u5c42\u7ea7\u3002<\/p>\n

    \n

    \u676f\u5b50\u56fe\u6807\u884c<\/h3>\n

    \u8fd9\u662f\u996e\u6c34\u5361\u7247\u6700\u6709\u7279\u8272\u7684\u90e8\u5206：<\/p>\n

    const<\/span> SizedBox<\/span>(<\/span>height:<\/span> 20<\/span>)<\/span>,<\/span>
    \nRow<\/span>(<\/span>
    \n mainAxisAlignment:<\/span> MainAxisAlignment<\/span>.<\/span>spaceEvenly,<\/span>
    \n children:<\/span> List<\/span>.<\/span>generate<\/span>(<\/span>dailyGoal,<\/span> (<\/span>index)<\/span> {<\/span>
    \n final<\/span> isFilled =<\/span> index <<\/span> cups;<\/span>
    \n return<\/span> GestureDetector<\/span>(<\/span>
    \n onTap:<\/span> (<\/span>)<\/span> =<\/span>><\/span> provider.<\/span>updateTodayRecord<\/span>(<\/span>waterCups:<\/span> index +<\/span> 1<\/span>)<\/span>,<\/span>
    \n child:<\/span> Container<\/span>(<\/span>
    \n width:<\/span> 32<\/span>,<\/span>
    \n height:<\/span> 48<\/span>,<\/span>
    \n decoration:<\/span> BoxDecoration<\/span>(<\/span>
    \n color:<\/span> isFilled
    \n ?<\/span> primaryColor.<\/span>withOpacity<\/span>(<\/span>0.2<\/span>)<\/span>
    \n :<\/span> colors.<\/span>inputBackground,<\/span>
    \n borderRadius:<\/span> BorderRadius<\/span>.<\/span>circular<\/span>(<\/span>8<\/span>)<\/span>,<\/span>
    \n border:<\/span> Border<\/span>.<\/span>all<\/span>(<\/span>
    \n color:<\/span> isFilled ?<\/span> primaryColor :<\/span> colors.<\/span>divider,<\/span>
    \n width:<\/span> 2<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n )<\/span>,<\/span><\/p>\n

    \u676f\u5b50\u56fe\u6807\u7684\u4ea4\u4e92\u8bbe\u8ba1：<\/p>\n

    \u7528 List.generate \u751f\u62108\u4e2a\u676f\u5b50\u56fe\u6807\u3002isFilled \u5224\u65ad\u8fd9\u4e2a\u676f\u5b50\u662f\u5426\u5df2\u7ecf\u559d\u8fc7（\u7d22\u5f15\u5c0f\u4e8e\u5df2\u559d\u676f\u6570）\u3002<\/p>\n

    \u70b9\u51fb\u676f\u5b50\u65f6，\u76f4\u63a5\u628a\u996e\u6c34\u91cf\u8bbe\u7f6e\u4e3a\u8fd9\u4e2a\u676f\u5b50\u7684\u5e8f\u53f7\u52a01\u3002\u6bd4\u5982\u70b9\u51fb\u7b2c3\u4e2a\u676f\u5b50，\u5c31\u8bbe\u7f6e\u4e3a3\u676f\u3002\u8fd9\u6837\u7528\u6237\u53ef\u4ee5\u5feb\u901f\u8c03\u6574，\u4e0d\u7528\u4e00\u676f\u4e00\u676f\u5730\u52a0\u3002\u8fd9\u662f\u4e00\u4e2a\u5f88\u806a\u660e\u7684\u4ea4\u4e92\u8bbe\u8ba1\u3002<\/p>\n

    \u676f\u5b50\u7684\u6837\u5f0f\u6839\u636e\u662f\u5426\u586b\u5145\u800c\u4e0d\u540c：\u586b\u5145\u7684\u676f\u5b50\u6709\u4e3b\u9898\u8272\u80cc\u666f\u548c\u8fb9\u6846，\u672a\u586b\u5145\u7684\u676f\u5b50\u662f\u7070\u8272\u80cc\u666f\u548c\u8fb9\u6846\u3002<\/p>\n

    \n

    \u676f\u5b50\u5185\u90e8\u7684\u6c34\u548c\u56fe\u6807<\/h3>\n

    child:<\/span> Stack<\/span>(<\/span>
    \n alignment:<\/span> Alignment<\/span>.<\/span>bottomCenter,<\/span>
    \n children:<\/span> [<\/span>
    \n if<\/span> (<\/span>isFilled)<\/span>
    \n Container<\/span>(<\/span>
    \n width:<\/span> double.<\/span>infinity,<\/span>
    \n height:<\/span> 40<\/span>,<\/span>
    \n decoration:<\/span> BoxDecoration<\/span>(<\/span>
    \n color:<\/span> primaryColor,<\/span>
    \n borderRadius:<\/span> BorderRadius<\/span>.<\/span>circular<\/span>(<\/span>5<\/span>)<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n Icon<\/span>(<\/span>
    \n Icons<\/span>.<\/span>water_drop,<\/span>
    \n size:<\/span> 20<\/span>,<\/span>
    \n color:<\/span> isFilled ?<\/span> Colors<\/span>.<\/span>white :<\/span> colors.<\/span>textSecondary,<\/span>
    \n )<\/span>,<\/span>
    \n ]<\/span>,<\/span>
    \n)<\/span>,<\/span><\/p>\n

    \u676f\u5b50\u5185\u90e8\u7684\u89c6\u89c9\u8bbe\u8ba1：<\/p>\n

    \u7528 Stack \u53e0\u52a0\u4e24\u5c42：\u5e95\u5c42\u662f\u586b\u5145\u7684\u6c34（\u4e00\u4e2a\u4e3b\u9898\u8272\u7684\u77e9\u5f62），\u4e0a\u5c42\u662f\u6c34\u6ef4\u56fe\u6807\u3002<\/p>\n

    \u586b\u5145\u7684\u676f\u5b50，\u6c34\u6ef4\u56fe\u6807\u662f\u767d\u8272\u7684，\u548c\u84dd\u8272\u80cc\u666f\u5f62\u6210\u5bf9\u6bd4；\u672a\u586b\u5145\u7684\u676f\u5b50，\u6c34\u6ef4\u56fe\u6807\u662f\u7070\u8272\u7684\u3002\u8fd9\u6837\u7684\u8bbe\u8ba1\u8ba9\u7528\u6237\u80fd\u591f\u6e05\u6670\u5730\u770b\u51fa\u54ea\u4e9b\u676f\u5b50\u5df2\u7ecf\u559d\u8fc7\u3002<\/p>\n

    \n

    \u8fdb\u5ea6\u6761<\/h3>\n

    const<\/span> SizedBox<\/span>(<\/span>height:<\/span> 16<\/span>)<\/span>,<\/span>
    \nClipRRect<\/span>(<\/span>
    \n borderRadius:<\/span> BorderRadius<\/span>.<\/span>circular<\/span>(<\/span>4<\/span>)<\/span>,<\/span>
    \n child:<\/span> LinearProgressIndicator<\/span>(<\/span>
    \n value:<\/span> progress,<\/span>
    \n backgroundColor:<\/span> colors.<\/span>inputBackground,<\/span>
    \n valueColor:<\/span> AlwaysStoppedAnimation<\/span><<\/span>Color<\/span>><\/span><\/span>(<\/span>
    \n cups >=<\/span> dailyGoal ?<\/span> primaryColor :<\/span> primaryColor.<\/span>withOpacity<\/span>(<\/span>0.7<\/span>)<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n minHeight:<\/span> 8<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n)<\/span>,<\/span><\/p>\n

    \u8fdb\u5ea6\u6761\u7684\u8bbe\u8ba1\u7ec6\u8282：<\/p>\n

    \u7528Flutter\u5185\u7f6e\u7684 LinearProgressIndicator \u663e\u793a\u8fdb\u5ea6\u3002ClipRRect \u7ed9\u8fdb\u5ea6\u6761\u52a0\u4e0a\u5706\u89d2，\u770b\u8d77\u6765\u66f4\u67d4\u548c\u3002<\/p>\n

    \u5982\u679c\u5df2\u7ecf\u5b8c\u6210\u76ee\u6807（\u559d\u6ee18\u676f），\u8fdb\u5ea6\u6761\u7528\u5b8c\u6574\u7684\u4e3b\u9898\u8272；\u5426\u5219\u752870%\u900f\u660e\u5ea6\u7684\u4e3b\u9898\u8272，\u89c6\u89c9\u4e0a\u7a0d\u5fae\u6de1\u4e00\u70b9\u3002\u8fd9\u6837\u53ef\u4ee5\u6697\u793a\u7528\u6237\u8fd8\u6ca1\u6709\u5b8c\u6210\u76ee\u6807\u3002<\/p>\n

    \u8fdb\u5ea6\u6761\u7684\u9ad8\u5ea6\u8bbe\u7f6e\u4e3a8\u50cf\u7d20，\u4e0d\u4f1a\u592a\u663e\u773c，\u4f46\u8db3\u591f\u6e05\u6670\u3002<\/p>\n

    \n

    \u5feb\u6377\u6309\u94ae\u533a\u57df<\/h3>\n

    const<\/span> SizedBox<\/span>(<\/span>height:<\/span> 12<\/span>)<\/span>,<\/span>
    \nRow<\/span>(<\/span>
    \n mainAxisAlignment:<\/span> MainAxisAlignment<\/span>.<\/span>center,<\/span>
    \n children:<\/span> [<\/span>
    \n _buildQuickButton<\/span>(<\/span>
    \n context,<\/span>
    \n Icons<\/span>.<\/span>remove,<\/span>
    \n (<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>cups ><\/span> 0<\/span>)<\/span> {<\/span>
    \n provider.<\/span>updateTodayRecord<\/span>(<\/span>waterCups:<\/span> cups –<\/span> 1<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n const<\/span> SizedBox<\/span>(<\/span>width:<\/span> 16<\/span>)<\/span>,<\/span>
    \n Text<\/span>(<\/span>
    \n '<\/span>${<\/span>cups *<\/span> 250<\/span><\/span>}<\/span><\/span> ml'<\/span><\/span>,<\/span>
    \n style:<\/span> TextStyle<\/span>(<\/span>
    \n fontSize:<\/span> 18<\/span>,<\/span>
    \n fontWeight:<\/span> FontWeight<\/span>.<\/span>w600,<\/span>
    \n color:<\/span> colors.<\/span>textPrimary,<\/span>
    \n )<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n const<\/span> SizedBox<\/span>(<\/span>width:<\/span> 16<\/span>)<\/span>,<\/span>
    \n _buildQuickButton<\/span>(<\/span>
    \n context,<\/span>
    \n Icons<\/span>.<\/span>add,<\/span>
    \n (<\/span>)<\/span> =<\/span>><\/span> provider.<\/span>addWater<\/span>(<\/span>)<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n ]<\/span>,<\/span>
    \n)<\/span>,<\/span><\/p>\n

    \u5feb\u6377\u6309\u94ae\u7684\u4ea4\u4e92\u903b\u8f91：<\/p>\n

    \u4e2d\u95f4\u663e\u793a\u5f53\u524d\u7684\u6beb\u5347\u6570（\u676f\u6570\u4e58\u4ee5250），\u4e24\u8fb9\u662f\u52a0\u51cf\u6309\u94ae\u3002<\/p>\n

    \u51cf\u6309\u94ae\u6709\u4e2a\u5224\u65ad：\u5982\u679c\u5df2\u7ecf\u662f0\u676f\u4e86，\u5c31\u4e0d\u80fd\u518d\u51cf\u4e86\u3002\u8fd9\u662f\u4e00\u4e2a\u8fb9\u754c\u60c5\u51b5\u5904\u7406，\u9632\u6b62\u7528\u6237\u628a\u996e\u6c34\u91cf\u8bbe\u7f6e\u6210\u8d1f\u6570\u3002<\/p>\n

    \u52a0\u6309\u94ae\u8c03\u7528 provider.addWater()，\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u628a\u676f\u6570\u52a01\u3002\u8fd9\u6837\u7528\u6237\u53ef\u4ee5\u5feb\u901f\u589e\u52a0\u996e\u6c34\u91cf，\u4e0d\u7528\u6bcf\u6b21\u90fd\u70b9\u676f\u5b50\u56fe\u6807\u3002<\/p>\n

    \n

    \u5feb\u6377\u6309\u94ae\u7ec4\u4ef6<\/h3>\n

    Widget<\/span> _buildQuickButton<\/span>(<\/span>BuildContext<\/span> context,<\/span> IconData<\/span> icon,<\/span> VoidCallback<\/span> onTap)<\/span> {<\/span>
    \n final<\/span> isDark =<\/span> Theme<\/span>.<\/span>of<\/span>(<\/span>context)<\/span>.<\/span>brightness ==<\/span> Brightness<\/span>.<\/span>dark;<\/span><\/p>\n

    return<\/span> GestureDetector<\/span>(<\/span>
    \n onTap:<\/span> onTap,<\/span>
    \n child:<\/span> Container<\/span>(<\/span>
    \n width:<\/span> 40<\/span>,<\/span>
    \n height:<\/span> 40<\/span>,<\/span>
    \n decoration:<\/span> BoxDecoration<\/span>(<\/span>
    \n color:<\/span> isDark ?<\/span> AppColors<\/span>.<\/span>primaryLight :<\/span> AppColors<\/span>.<\/span>primary,<\/span>
    \n borderRadius:<\/span> BorderRadius<\/span>.<\/span>circular<\/span>(<\/span>12<\/span>)<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n child:<\/span> Icon<\/span>(<\/span>icon,<\/span> color:<\/span> isDark ?<\/span> Colors<\/span>.<\/span>black :<\/span> Colors<\/span>.<\/span>white,<\/span> size:<\/span> 24<\/span>)<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n )<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u6309\u94ae\u7ec4\u4ef6\u7684\u8bbe\u8ba1：<\/p>\n

    \u6309\u94ae\u662f\u4e00\u4e2a40×40\u7684\u5706\u89d2\u65b9\u5757，\u80cc\u666f\u662f\u4e3b\u9898\u8272，\u56fe\u6807\u662f\u767d\u8272（\u6df1\u8272\u6a21\u5f0f\u4e0b\u662f\u9ed1\u8272）\u3002<\/p>\n

    \u8fd9\u6837\u7684\u8bbe\u8ba1\u8ba9\u6309\u94ae\u770b\u8d77\u6765\u50cf\u4e00\u4e2a\u53ef\u70b9\u51fb\u7684\u5143\u7d20，\u7528\u6237\u80fd\u591f\u76f4\u89c2\u5730\u7406\u89e3\u5b83\u7684\u529f\u80fd\u3002<\/p>\n

    \n

    Provider\u4e2d\u7684\u65b9\u6cd5<\/h3>\n

    \u996e\u6c34\u5361\u7247\u7528\u5230\u4e86 UserProvider \u4e2d\u7684\u4e24\u4e2a\u65b9\u6cd5：<\/p>\n

    \/\/ \u66f4\u65b0\u4eca\u65e5\u8bb0\u5f55<\/span>
    \nFuture<\/span><<\/span>void<\/span>><\/span><\/span> updateTodayRecord<\/span>(<\/span>{<\/span>
    \n int?<\/span> caloriesConsumed,<\/span>
    \n int?<\/span> caloriesBurned,<\/span>
    \n int?<\/span> steps,<\/span>
    \n int?<\/span> waterCups,<\/span>
    \n double?<\/span> weight,<\/span>
    \n}<\/span>)<\/span> async<\/span> {<\/span>
    \n _todayRecord =<\/span> _todayRecord.<\/span>copyWith<\/span>(<\/span>
    \n caloriesConsumed:<\/span> caloriesConsumed,<\/span>
    \n caloriesBurned:<\/span> caloriesBurned,<\/span>
    \n steps:<\/span> steps,<\/span>
    \n waterCups:<\/span> waterCups,<\/span>
    \n weight:<\/span> weight,<\/span>
    \n )<\/span>;<\/span>
    \n await<\/span> _saveTodayRecord<\/span>(<\/span>)<\/span>;<\/span>
    \n notifyListeners<\/span>(<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    updateTodayRecord\u65b9\u6cd5\u7684\u8bbe\u8ba1：<\/p>\n

    \u8fd9\u662f\u4e00\u4e2a\u901a\u7528\u65b9\u6cd5，\u53ef\u4ee5\u66f4\u65b0\u4eca\u65e5\u8bb0\u5f55\u7684\u4efb\u4f55\u5b57\u6bb5\u3002\u4f7f\u7528\u53ef\u9009\u53c2\u6570，\u53ea\u66f4\u65b0\u4f20\u5165\u7684\u5b57\u6bb5，\u5176\u4ed6\u5b57\u6bb5\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n

    copyWith \u662f\u4e00\u4e2a\u5e38\u89c1\u7684Dart\u6a21\u5f0f，\u7528\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u5bf9\u8c61，\u53ea\u6539\u53d8\u6307\u5b9a\u7684\u5b57\u6bb5\u3002\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u4e0d\u53ef\u53d8\u6027\u3002<\/p>\n

    \n

    \u6dfb\u52a0\u996e\u6c34\u7684\u4fbf\u6377\u65b9\u6cd5<\/h3>\n

    \/\/ \u6dfb\u52a0\u996e\u6c34<\/span>
    \nFuture<\/span><<\/span>void<\/span>><\/span><\/span> addWater<\/span>(<\/span>)<\/span> async<\/span> {<\/span>
    \n _todayRecord =<\/span> _todayRecord.<\/span>copyWith<\/span>(<\/span>
    \n waterCups:<\/span> _todayRecord.<\/span>waterCups +<\/span> 1<\/span>,<\/span>
    \n )<\/span>;<\/span>
    \n await<\/span> _saveTodayRecord<\/span>(<\/span>)<\/span>;<\/span>
    \n notifyListeners<\/span>(<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u4fbf\u6377\u65b9\u6cd5\u7684\u597d\u5904：<\/p>\n

    addWater \u662f\u4e00\u4e2a\u4fbf\u6377\u65b9\u6cd5，\u4e13\u95e8\u7528\u4e8e\u589e\u52a0\u996e\u6c34\u91cf\u3002\u76f8\u6bd4\u8c03\u7528 updateTodayRecord(waterCups: cups + 1)，\u8fd9\u4e2a\u65b9\u6cd5\u66f4\u7b80\u6d01，\u4e5f\u66f4\u5bb9\u6613\u7406\u89e3\u3002<\/p>\n

    \u4e24\u4e2a\u65b9\u6cd5\u90fd\u4f1a\u8c03\u7528 _saveTodayRecord() \u628a\u6570\u636e\u6301\u4e45\u5316\u5230\u672c\u5730\u5b58\u50a8，\u7136\u540e\u8c03\u7528 notifyListeners() \u901a\u77e5UI\u66f4\u65b0\u3002<\/p>\n

    \n

    \u6570\u636e\u6301\u4e45\u5316<\/h3>\n

    \u996e\u6c34\u6570\u636e\u5b58\u50a8\u5728 SharedPreferences \u4e2d：<\/p>\n

    Future<\/span><<\/span>void<\/span>><\/span><\/span> _saveTodayRecord<\/span>(<\/span>)<\/span> async<\/span> {<\/span>
    \n final<\/span> prefs =<\/span> await<\/span> SharedPreferences<\/span>.<\/span>getInstance<\/span>(<\/span>)<\/span>;<\/span>
    \n final<\/span> recordsJson =<\/span> prefs.<\/span>getString<\/span>(<\/span>_recordsKey)<\/span>;<\/span>
    \n List<\/span><<\/span>dynamic<\/span>><\/span><\/span> records =<\/span> [<\/span>]<\/span>;<\/span><\/p>\n

    if<\/span> (<\/span>recordsJson !=<\/span> null<\/span>)<\/span> {<\/span>
    \n records =<\/span> jsonDecode<\/span>(<\/span>recordsJson)<\/span>;<\/span>
    \n \/\/ \u79fb\u9664\u4eca\u5929\u7684\u65e7\u8bb0\u5f55<\/span>
    \n records.<\/span>removeWhere<\/span>(<\/span>(<\/span>r)<\/span> {<\/span>
    \n final<\/span> date =<\/span> DateTime<\/span>.<\/span>tryParse<\/span>(<\/span>r[<\/span>'date'<\/span><\/span>]<\/span> ?<\/span>?<\/span> ''<\/span><\/span>)<\/span>;<\/span>
    \n return<\/span> date !=<\/span> null<\/span> &&<\/span> _isSameDay<\/span>(<\/span>date,<\/span> DateTime<\/span>.<\/span>now<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
    \n }<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u6dfb\u52a0\u65b0\u8bb0\u5f55<\/span>
    \n records.<\/span>add<\/span>(<\/span>_todayRecord.<\/span>toJson<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u53ea\u4fdd\u7559\u6700\u8fd130\u5929\u7684\u8bb0\u5f55<\/span>
    \n final<\/span> thirtyDaysAgo =<\/span> DateTime<\/span>.<\/span>now<\/span>(<\/span>)<\/span>.<\/span>subtract<\/span>(<\/span>const<\/span> Duration<\/span>(<\/span>days:<\/span> 30<\/span>)<\/span>)<\/span>;<\/span>
    \n records.<\/span>removeWhere<\/span>(<\/span>(<\/span>r)<\/span> {<\/span>
    \n final<\/span> date =<\/span> DateTime<\/span>.<\/span>tryParse<\/span>(<\/span>r[<\/span>'date'<\/span><\/span>]<\/span> ?<\/span>?<\/span> ''<\/span><\/span>)<\/span>;<\/span>
    \n return<\/span> date !=<\/span> null<\/span> &&<\/span> date.<\/span>isBefore<\/span>(<\/span>thirtyDaysAgo)<\/span>;<\/span>
    \n }<\/span>)<\/span>;<\/span><\/p>\n

    await<\/span> prefs.<\/span>setString<\/span>(<\/span>_recordsKey,<\/span> jsonEncode<\/span>(<\/span>records)<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u6570\u636e\u6301\u4e45\u5316\u7684\u903b\u8f91：<\/p>\n

    \u6bcf\u6b21\u4fdd\u5b58\u65f6，\u5148\u79fb\u9664\u4eca\u5929\u7684\u65e7\u8bb0\u5f55，\u518d\u6dfb\u52a0\u65b0\u8bb0\u5f55\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u6bcf\u5929\u53ea\u6709\u4e00\u6761\u8bb0\u5f55\u3002<\/p>\n

    \u540c\u65f6\u6e05\u740630\u5929\u524d\u7684\u65e7\u6570\u636e，\u907f\u514d\u5b58\u50a8\u7a7a\u95f4\u65e0\u9650\u589e\u957f\u3002\u8fd9\u662f\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u4f18\u5316，\u7279\u522b\u662f\u5bf9\u4e8e\u957f\u671f\u4f7f\u7528\u7684\u5e94\u7528\u3002<\/p>\n

    \n

    \u4e3a\u4ec0\u4e48\u7528List.generate<\/h3>\n

    \u5728\u676f\u5b50\u56fe\u6807\u884c\u4e2d，\u6211\u4eec\u7528 List.generate \u800c\u4e0d\u662f\u624b\u52a8\u51998\u4e2a\u676f\u5b50\u3002\u8fd9\u6837\u505a\u6709\u51e0\u4e2a\u597d\u5904：<\/p>\n

    \u7b2c\u4e00，\u4ee3\u7801\u7b80\u6d01<\/p>\n

    \/\/ \u597d\u7684\u505a\u6cd5<\/span>
    \nList<\/span>.<\/span>generate<\/span>(<\/span>dailyGoal,<\/span> (<\/span>index)<\/span> {<\/span> .<\/span>.<\/span>.<\/span> }<\/span>)<\/span><\/p>\n

    \/\/ \u4e0d\u597d\u7684\u505a\u6cd5<\/span>
    \n[<\/span>
    \n _buildCup<\/span>(<\/span>0<\/span>)<\/span>,<\/span>
    \n _buildCup<\/span>(<\/span>1<\/span>)<\/span>,<\/span>
    \n _buildCup<\/span>(<\/span>2<\/span>)<\/span>,<\/span>
    \n \/\/ … \u91cd\u590d6\u6b21<\/span>
    \n]<\/span><\/p>\n

    \u7b2c\u4e8c，\u6613\u4e8e\u4fee\u6539<\/p>\n

    \u5982\u679c\u8981\u6539\u621010\u676f，\u53ea\u9700\u8981\u6539 dailyGoal \u7684\u503c，\u4e0d\u7528\u4fee\u6539UI\u4ee3\u7801\u3002<\/p>\n

    \u7b2c\u4e09，\u6027\u80fd\u66f4\u597d<\/p>\n

    List.generate \u662f\u61d2\u52a0\u8f7d\u7684，\u53ea\u5728\u9700\u8981\u65f6\u521b\u5efa\u5143\u7d20\u3002<\/p>\n

    \n

    \u4ea4\u4e92\u4f53\u9a8c\u4f18\u5316<\/h3>\n

    \u996e\u6c34\u5361\u7247\u7684\u4ea4\u4e92\u8bbe\u8ba1\u6709\u51e0\u4e2a\u7ec6\u8282\u503c\u5f97\u6ce8\u610f：<\/p>\n

    \u7b2c\u4e00，\u70b9\u51fb\u676f\u5b50\u53ef\u4ee5\u76f4\u63a5\u8bbe\u7f6e\u676f\u6570<\/p>\n

    \u800c\u4e0d\u662f\u53ea\u80fd\u52a01\u3002\u8fd9\u6837\u7528\u6237\u5982\u679c\u6f0f\u8bb0\u4e86\u51e0\u676f，\u53ef\u4ee5\u5feb\u901f\u8865\u4e0a\u3002\u6bd4\u5982\u7528\u6237\u60f3\u8bbe\u7f6e\u4e3a5\u676f，\u76f4\u63a5\u70b9\u7b2c5\u4e2a\u676f\u5b50\u5c31\u884c，\u4e0d\u7528\u70b95\u6b21\u52a0\u6309\u94ae\u3002<\/p>\n

    \u7b2c\u4e8c，\u676f\u5b50\u56fe\u6807\u6709\u89c6\u89c9\u53cd\u9988<\/p>\n

    \u586b\u5145\u548c\u672a\u586b\u5145\u72b6\u6001\u660e\u663e\u4e0d\u540c\u3002\u7528\u6237\u4e00\u773c\u5c31\u80fd\u770b\u51fa\u559d\u4e86\u591a\u5c11\u3002<\/p>\n

    \u7b2c\u4e09，\u663e\u793a\u6beb\u5347\u6570\u800c\u4e0d\u53ea\u662f\u676f\u6570<\/p>\n

    \u6709\u4e9b\u7528\u6237\u66f4\u4e60\u60ef\u7528\u6beb\u5347\u6765\u8861\u91cf\u996e\u6c34\u91cf，\u8fd9\u6837\u66f4\u76f4\u89c2\u3002\u800c\u4e14250\u6beb\u5347\u8fd9\u4e2a\u5355\u4f4d\u4e5f\u662f\u6807\u51c6\u7684\u676f\u5b50\u5bb9\u91cf\u3002<\/p>\n

    \u7b2c\u56db，\u8fdb\u5ea6\u6761\u63d0\u4f9b\u4e86\u53e6\u4e00\u79cd\u89c6\u89d2<\/p>\n

    \u8ba9\u7528\u6237\u77e5\u9053\u8ddd\u79bb\u76ee\u6807\u8fd8\u6709\u591a\u8fdc\u3002\u6709\u4e9b\u7528\u6237\u559c\u6b22\u770b\u8fdb\u5ea6\u6761，\u6709\u4e9b\u559c\u6b22\u770b\u676f\u5b50\u56fe\u6807，\u4e24\u79cd\u65b9\u5f0f\u90fd\u63d0\u4f9b\u4e86\u3002<\/p>\n

    \n

    \u8fb9\u754c\u60c5\u51b5\u5904\u7406<\/h3>\n

    \u5728\u5b9e\u73b0\u996e\u6c34\u5361\u7247\u65f6，\u6211\u4eec\u5904\u7406\u4e86\u51e0\u4e2a\u8fb9\u754c\u60c5\u51b5：<\/p>\n

    \u7b2c\u4e00，\u51cf\u6309\u94ae\u7684\u8fb9\u754c\u68c0\u67e5<\/p>\n

    if<\/span> (<\/span>cups ><\/span> 0<\/span>)<\/span> {<\/span>
    \n provider.<\/span>updateTodayRecord<\/span>(<\/span>waterCups:<\/span> cups –<\/span> 1<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u9632\u6b62\u7528\u6237\u628a\u996e\u6c34\u91cf\u8bbe\u7f6e\u6210\u8d1f\u6570\u3002<\/p>\n

    \u7b2c\u4e8c，\u8fdb\u5ea6\u767e\u5206\u6bd4\u7684clamp<\/p>\n

    final<\/span> progress =<\/span> (<\/span>cups \/<\/span> dailyGoal)<\/span>.<\/span>clamp<\/span>(<\/span>0.0<\/span>,<\/span> 1.0<\/span>)<\/span>;<\/span><\/p>\n

    \u9632\u6b62\u8fdb\u5ea6\u8d85\u8fc7100%\u3002<\/p>\n

    \u7b2c\u4e09，\u65e0\u6570\u636e\u65f6\u7684\u9ed8\u8ba4\u503c<\/p>\n

    \u5982\u679c\u7528\u6237\u8fd8\u6ca1\u6709\u8bb0\u5f55\u4efb\u4f55\u996e\u6c34，\u663e\u793a0\u676f，\u8fd9\u662f\u5408\u7406\u7684\u9ed8\u8ba4\u503c\u3002<\/p>\n

    \n

    \u53ef\u80fd\u7684\u6539\u8fdb\u65b9\u5411<\/h3>\n

    \u5f53\u524d\u5b9e\u73b0\u5df2\u7ecf\u80fd\u6ee1\u8db3\u57fa\u672c\u9700\u6c42，\u4f46\u8fd8\u6709\u4e00\u4e9b\u53ef\u4ee5\u6539\u8fdb\u7684\u5730\u65b9：<\/p>\n

    \u7b2c\u4e00，\u652f\u6301\u81ea\u5b9a\u4e49\u76ee\u6807<\/p>\n

    \u4e0d\u540c\u4eba\u7684\u996e\u6c34\u9700\u6c42\u4e0d\u540c，\u53ef\u4ee5\u8ba9\u7528\u6237\u5728\u8bbe\u7f6e\u91cc\u8c03\u6574\u6bcf\u65e5\u76ee\u6807\u3002\u8fd9\u6837\u53ef\u4ee5\u8ba9\u5e94\u7528\u66f4\u4e2a\u6027\u5316\u3002<\/p>\n

    \u7b2c\u4e8c，\u652f\u6301\u81ea\u5b9a\u4e49\u676f\u5b50\u5bb9\u91cf<\/p>\n

    \u6709\u4e9b\u4eba\u7528\u7684\u676f\u5b50\u662f300\u6beb\u5347\u6216500\u6beb\u5347，\u53ef\u4ee5\u8ba9\u7528\u6237\u8bbe\u7f6e\u3002\u8fd9\u6837\u8ba1\u7b97\u6beb\u5347\u6570\u65f6\u4f1a\u66f4\u51c6\u786e\u3002<\/p>\n

    \u7b2c\u4e09，\u6dfb\u52a0\u63d0\u9192\u529f\u80fd<\/p>\n

    \u5b9a\u65f6\u63d0\u9192\u7528\u6237\u559d\u6c34，\u8fd9\u4e2a\u529f\u80fd\u6211\u4eec\u4f1a\u5728\u540e\u9762\u7684\u6587\u7ae0\u4e2d\u5b9e\u73b0\u3002\u8fd9\u662f\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u529f\u80fd，\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u517b\u6210\u559d\u6c34\u7684\u4e60\u60ef\u3002<\/p>\n

    \u7b2c\u56db，\u6dfb\u52a0\u52a8\u753b\u6548\u679c<\/p>\n

    \u70b9\u51fb\u676f\u5b50\u65f6\u53ef\u4ee5\u6709\u4e00\u4e2a\u6c34\u4f4d\u4e0a\u5347\u7684\u52a8\u753b，\u66f4\u6709\u8da3\u5473\u6027\u3002\u8fd9\u6837\u53ef\u4ee5\u589e\u52a0\u7528\u6237\u7684\u53c2\u4e0e\u611f\u3002<\/p>\n

    \u7b2c\u4e94，\u663e\u793a\u5386\u53f2\u6570\u636e<\/p>\n

    \u53ef\u4ee5\u663e\u793a\u8fc7\u53bb\u51e0\u5929\u7684\u996e\u6c34\u8bb0\u5f55，\u8ba9\u7528\u6237\u770b\u5230\u81ea\u5df1\u7684\u996e\u6c34\u8d8b\u52bf\u3002\u8fd9\u6837\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u597d\u5730\u4e86\u89e3\u81ea\u5df1\u7684\u996e\u6c34\u4e60\u60ef\u3002<\/p>\n

    \n

    \u6027\u80fd\u8003\u8651<\/h3>\n

    \u5728\u5b9e\u73b0\u996e\u6c34\u5361\u7247\u65f6，\u6709\u51e0\u4e2a\u6027\u80fd\u65b9\u9762\u7684\u8003\u8651：<\/p>\n

    \u7b2c\u4e00，\u907f\u514d\u9891\u7e41\u7684Provider\u66f4\u65b0<\/p>\n

    \u6bcf\u6b21\u70b9\u51fb\u90fd\u4f1a\u8c03\u7528 notifyListeners()，\u8fd9\u4f1a\u5bfc\u81f4\u6574\u4e2a\u5361\u7247\u91cd\u5efa\u3002\u5982\u679c\u7528\u6237\u9891\u7e41\u70b9\u51fb，\u53ef\u80fd\u4f1a\u6709\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

    \u89e3\u51b3\u65b9\u6848\u662f\u4f7f\u7528 Selector \u800c\u4e0d\u662f Consumer，\u53ea\u76d1\u542c\u9700\u8981\u7684\u6570\u636e\u3002<\/p>\n

    \u7b2c\u4e8c，\u6570\u636e\u6301\u4e45\u5316\u7684\u6027\u80fd<\/p>\n

    \u6bcf\u6b21\u66f4\u65b0\u90fd\u8981\u5199\u5165 SharedPreferences，\u8fd9\u662f\u4e00\u4e2aIO\u64cd\u4f5c，\u53ef\u80fd\u6bd4\u8f83\u8017\u65f6\u3002<\/p>\n

    \u89e3\u51b3\u65b9\u6848\u662f\u4f7f\u7528\u6570\u636e\u5e93（\u5982SQLite）\u4ee3\u66ff SharedPreferences，\u6216\u8005\u4f7f\u7528\u5f02\u6b65\u64cd\u4f5c\u4e0d\u963b\u585eUI\u3002<\/p>\n

    \u7b2c\u4e09，List.generate\u7684\u6027\u80fd<\/p>\n

    \u867d\u7136 List.generate \u5f88\u65b9\u4fbf，\u4f46\u5982\u679c\u676f\u5b50\u6570\u91cf\u5f88\u591a（\u6bd4\u5982100\u676f），\u53ef\u80fd\u4f1a\u6709\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

    \u89e3\u51b3\u65b9\u6848\u662f\u4f7f\u7528 ListView.builder \u4ee3\u66ff List.generate，\u8fd9\u6837\u53ef\u4ee5\u5b9e\u73b0\u865a\u62df\u6eda\u52a8\u3002<\/p>\n

    \n

    \u5c0f\u7ed3<\/h3>\n

    \u8fd9\u7bc7\u6587\u7ae0\u6211\u4eec\u5b9e\u73b0\u4e86\u996e\u6c34\u5361\u7247，\u4e3b\u8981\u6d89\u53ca：<\/p>\n

      \n
    • List.generate – \u52a8\u6001\u751f\u6210\u676f\u5b50\u56fe\u6807<\/li>\n
    • Stack – \u53e0\u52a0\u6c34\u4f4d\u548c\u56fe\u6807<\/li>\n
    • LinearProgressIndicator – \u663e\u793a\u8fdb\u5ea6<\/li>\n
    • Provider\u6570\u636e\u7ed1\u5b9a – \u7ba1\u7406\u996e\u6c34\u6570\u636e<\/li>\n
    • SharedPreferences – \u6570\u636e\u6301\u4e45\u5316<\/li>\n<\/ul>\n

      \u996e\u6c34\u5361\u7247\u7684\u4ea4\u4e92\u8bbe\u8ba1\u6bd4\u8f83\u6709\u7279\u8272，\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u70b9\u51fb\u676f\u5b50\u6216\u52a0\u51cf\u6309\u94ae\u6765\u8bb0\u5f55\u996e\u6c34\u91cf，\u64cd\u4f5c\u7b80\u5355\u76f4\u89c2\u3002<\/p>\n

      \u4e0b\u4e00\u7bc7\u6211\u4eec\u6765\u5b9e\u73b0\u6b65\u6570\u5361\u7247，\u5b83\u4f1a\u7528\u5230\u6e10\u53d8\u8272\u7684\u8fdb\u5ea6\u6761\u548c\u5feb\u6377\u6dfb\u52a0\u6309\u94ae\u3002\u656c\u8bf7\u671f\u5f85！<\/p>\n

      \n

      \u6b22\u8fce\u52a0\u5165\u5f00\u6e90\u9e3f\u8499\u8de8\u5e73\u53f0\u793e\u533a：https:\/\/openharmonycrossplatform.csdn.net<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u5199\u5728\u524d\u9762
      \n\u559d\u6c34\u662f\u5065\u5eb7\u751f\u6d3b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206，\u5f88\u591a\u4eba\u5fd9\u8d77\u6765\u5c31\u5fd8\u4e86\u559d\u6c34\u3002\u6211\u4eec\u7684\u5065\u5eb7\u7ba1\u7406App\u63d0\u4f9b\u4e86\u4e00\u4e2a\u996e\u6c34\u8ffd\u8e2a\u529f\u80fd，\u7528\u6237\u53ef\u4ee5\u8bb0\u5f55\u6bcf\u5929\u559d\u4e86\u591a\u5c11\u676f\u6c34，\u5361\u7247\u4f1a\u663e\u793a\u8fdb\u5ea6\u548c\u603b\u91cf\u3002
      \n\u996e\u6c34\u5361\u7247\u7684\u4ea4\u4e92\u6bd4\u8f83\u6709\u610f\u601d：\u7528\u6237\u53ef\u4ee5\u70b9\u51fb\u676f\u5b50\u56fe\u6807\u6765\u8bb0\u5f55\u559d\u6c34，\u4e5f\u53ef\u4ee5\u7528\u52a0\u51cf\u6309\u94ae\u5feb\u901f\u8c03\u6574\u3002\u8fd9\u7bc7\u6587\u7ae0\u6211\u4eec\u6765\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\u3002 \u8bbe\u8ba1\u5206\u6790
      \n\u996e\u6c34\u5361\u7247\u7684\u5e03\u5c40\u4ece\u4e0a\u5230\u4e0b\u4f9d\u6b21\u662f：
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