马良AI写作初始化仓库

AINoval/lib/screens/settings/widgets/processing_indicator.dart

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+import 'package:flutter/material.dart';
+
+/// 处理状态指示器组件
+class ProcessingIndicator extends StatelessWidget {
+  /// 进度值（0.0-1.0）
+  final double progress;
+  
+  /// 取消操作回调
+  final VoidCallback? onCancel;
+  
+  const ProcessingIndicator({
+    Key? key,
+    this.progress = 0.0,
+    this.onCancel,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final showProgress = progress > 0 && progress < 1.0;
+    
+    return Container(
+      margin: const EdgeInsets.symmetric(vertical: 16),
+      padding: const EdgeInsets.all(16),
+      decoration: BoxDecoration(
+        color: theme.colorScheme.primaryContainer.withOpacity(0.2),
+        borderRadius: BorderRadius.circular(8),
+        border: Border.all(
+          color: theme.colorScheme.primary.withOpacity(0.3),
+        ),
+      ),
+      child: Column(
+        children: [
+          // 标题和进度指示
+          Row(
+            children: [
+              const SizedBox(
+                width: 24,
+                height: 24,
+                child: CircularProgressIndicator(
+                  strokeWidth: 3,
+                ),
+              ),
+              const SizedBox(width: 16),
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      '正在优化提示词模板...',
+                      style: TextStyle(
+                        fontWeight: FontWeight.bold,
+                        color: theme.colorScheme.primary,
+                      ),
+                    ),
+                    const SizedBox(height: 4),
+                    Text(
+                      _getStatusMessage(progress),
+                      style: TextStyle(
+                        fontSize: 13,
+                        color: theme.colorScheme.onSurfaceVariant,
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+              if (onCancel != null)
+                TextButton.icon(
+                  icon: const Icon(Icons.cancel, size: 16),
+                  label: const Text('取消'),
+                  onPressed: onCancel,
+                ),
+            ],
+          ),
+          
+          // 进度条
+          if (showProgress) ...[
+            const SizedBox(height: 16),
+            LinearProgressIndicator(
+              value: progress,
+              backgroundColor: theme.colorScheme.surfaceVariant,
+              valueColor: AlwaysStoppedAnimation<Color>(theme.colorScheme.primary),
+            ),
+            const SizedBox(height: 8),
+            Text(
+              '${(progress * 100).toInt()}%',
+              style: TextStyle(
+                fontSize: 12,
+                color: theme.colorScheme.onSurfaceVariant,
+              ),
+              textAlign: TextAlign.center,
+            ),
+          ],
+        ],
+      ),
+    );
+  }
+  
+  /// 获取状态消息
+  String _getStatusMessage(double progress) {
+    if (progress < 0.1) {
+      return '正在分析提示词内容...';
+    } else if (progress < 0.4) {
+      return '生成优化建议中...';
+    } else if (progress < 0.7) {
+      return '应用语言模型增强中...';
+    } else if (progress < 0.9) {
+      return '润色和格式化内容...';
+    } else {
+      return '优化即将完成...';
+    }
+  }
+}