diff --git a/App.tsx b/App.tsx
index f1e3eb1..1285d43 100644
--- a/App.tsx
+++ b/App.tsx
@@ -2,14 +2,17 @@ import React from 'react';
 import { NavigationContainer } from '@react-navigation/native';
 import AppNavigator from './src/navigation/AppNavigator';
 
+import { TasksProvider } from './src/context/TasksContext';
 import { PaperProvider } from 'react-native-paper';
 
 export default function App() {
   return (
     <PaperProvider>
-      <NavigationContainer>
-        <AppNavigator />
-      </NavigationContainer>
+      <TasksProvider>
+        <NavigationContainer>
+          <AppNavigator />
+        </NavigationContainer>
+      </TasksProvider>
     </PaperProvider>
   );
 }
diff --git a/package-lock.json b/package-lock.json
index 6678b0c..de3642f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,6 +17,7 @@
         "react-native-gesture-handler": "^2.27.1",
         "react-native-get-random-values": "^1.11.0",
         "react-native-paper": "^5.14.5",
+        "react-native-paper-dropdown": "^2.3.1",
         "react-native-safe-area-context": "^5.5.2",
         "react-native-screens": "^4.13.1",
         "react-native-vector-icons": "^10.2.0",
@@ -10826,6 +10827,23 @@
         "react-native-safe-area-context": "*"
       }
     },
+    "node_modules/react-native-paper-dropdown": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmmirror.com/react-native-paper-dropdown/-/react-native-paper-dropdown-2.3.1.tgz",
+      "integrity": "sha512-IvcHTucAV5+fiX2IVMiVdBDKT6KHxycW0o9QzZe7bpmeZWmuCajHDnwG3OSBGlXhUxrrM3TC0/HJZHwORWGgQg==",
+      "license": "MIT",
+      "workspaces": [
+        "example"
+      ],
+      "dependencies": {
+        "react-native-paper": "^5.12.3"
+      },
+      "peerDependencies": {
+        "react": "*",
+        "react-native": "*",
+        "react-native-paper": "*"
+      }
+    },
     "node_modules/react-native-paper/node_modules/color": {
       "version": "3.2.1",
       "resolved": "https://registry.npmmirror.com/color/-/color-3.2.1.tgz",
diff --git a/package.json b/package.json
index b75c2dc..a16a239 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
     "react-native-gesture-handler": "^2.27.1",
     "react-native-get-random-values": "^1.11.0",
     "react-native-paper": "^5.14.5",
+    "react-native-paper-dropdown": "^2.3.1",
     "react-native-safe-area-context": "^5.5.2",
     "react-native-screens": "^4.13.1",
     "react-native-vector-icons": "^10.2.0",
diff --git a/src/components/BottomActionBar.tsx b/src/components/BottomActionBar.tsx
index 41c17a0..259970f 100644
--- a/src/components/BottomActionBar.tsx
+++ b/src/components/BottomActionBar.tsx
@@ -1,5 +1,6 @@
 import React from 'react';
-import { View, Button, StyleSheet } from 'react-native';
+import { Appbar, useTheme } from 'react-native-paper';
+import { StyleSheet } from 'react-native';
 
 interface BottomActionBarProps {
   onRun: () => void;
@@ -18,25 +19,26 @@ const BottomActionBar: React.FC<BottomActionBarProps> = ({
   onBack,
   isSaveDisabled = true,
 }) => {
+  const theme = useTheme();
+
   return (
-    <View style={styles.container}>
-      <Button title="运行" onPress={onRun} />
-      <Button title="保存" onPress={onSave} disabled={isSaveDisabled} />
-      <Button title="撤销" onPress={onUndo} />
-      <Button title="恢复" onPress={onRestore} />
-      <Button title="返回" onPress={onBack} />
-    </View>
+    <Appbar style={[styles.bottom, { backgroundColor: theme.colors.elevation.level2 }]}>
+      <Appbar.Action icon="arrow-left" onPress={onBack} />
+      <Appbar.Action icon="play" onPress={onRun} />
+      <Appbar.Action icon="content-save" onPress={onSave} disabled={isSaveDisabled} />
+      <Appbar.Action icon="undo" onPress={onUndo} />
+      <Appbar.Action icon="restore" onPress={onRestore} />
+    </Appbar>
   );
 };
 
 const styles = StyleSheet.create({
-  container: {
-    flexDirection: 'row',
+  bottom: {
+    position: 'absolute',
+    left: 0,
+    right: 0,
+    bottom: 0,
     justifyContent: 'space-around',
-    padding: 16,
-    borderTopWidth: 1,
-    borderColor: '#ccc',
-    backgroundColor: '#f5f5f5',
   },
 });
 
diff --git a/src/components/TaskCard.tsx b/src/components/TaskCard.tsx
index af9afbd..ab15b66 100644
--- a/src/components/TaskCard.tsx
+++ b/src/components/TaskCard.tsx
@@ -1,43 +1,52 @@
 import React from 'react';
-import { View, Text, StyleSheet, TouchableOpacity } from 'react-native';
-import { Task } from '../types/task';
+import { StyleSheet } from 'react-native';
+import { Card, Text, Chip, useTheme } from 'react-native-paper';
+import { Task, TaskStatus } from '../types/task';
 
 interface TaskCardProps {
   task: Task;
   onPress: (id: string) => void;
 }
 
+const statusColors: Record<TaskStatus, string> = {
+  IDLE: 'grey',
+  RUNNING: 'blue',
+  COMPLETED: 'green',
+  ERROR: 'red',
+};
+
 const TaskCard: React.FC<TaskCardProps> = ({ task, onPress }) => {
+  const theme = useTheme();
+
   return (
-    <TouchableOpacity style={styles.card} onPress={() => onPress(task.id)}>
-      <Text style={styles.title}>{task.name}</Text>
-      <Text style={styles.status}>状态: {task.status}</Text>
-    </TouchableOpacity>
+    <Card style={styles.card} onPress={() => onPress(task.id)}>
+      <Card.Content>
+        <Text variant="titleMedium" style={styles.title}>{task.name}</Text>
+        <Chip 
+          icon="information" 
+          mode="outlined"
+          selectedColor={statusColors[task.status]}
+          style={[styles.chip, {backgroundColor: theme.colors.surface}]}
+        >
+          {task.status}
+        </Chip>
+      </Card.Content>
+    </Card>
   );
 };
 
 const styles = StyleSheet.create({
   card: {
-    backgroundColor: '#fff',
-    borderRadius: 8,
-    padding: 16,
     margin: 8,
     width: '45%',
-    elevation: 3,
-    shadowColor: '#000',
-    shadowOffset: { width: 0, height: 2 },
-    shadowOpacity: 0.1,
-    shadowRadius: 2,
   },
   title: {
-    fontSize: 16,
-    fontWeight: 'bold',
-    marginBottom: 8,
-  },
-  status: {
-    fontSize: 14,
-    color: '#666',
+    marginBottom: 12,
+    minHeight: 50, // Ensure cards have similar height
   },
+  chip: {
+    alignSelf: 'flex-start',
+  }
 });
 
 export default TaskCard;
diff --git a/src/components/TaskForm.tsx b/src/components/TaskForm.tsx
index 69d2d97..fe87ba0 100644
--- a/src/components/TaskForm.tsx
+++ b/src/components/TaskForm.tsx
@@ -1,6 +1,9 @@
-import React from 'react';
-import { View, Text, TextInput, StyleSheet, ScrollView } from 'react-native';
+import React, { useState } from 'react';
+import { View, StyleSheet, ScrollView } from 'react-native';
+import { TextInput } from 'react-native-paper';
+import DropDown from "react-native-paper-dropdown";
 import { Task, RobotAction } from '../types/task';
+import { LOCATIONS, ROBOT_ACTIONS, PAYLOADS } from '../data/mockData';
 
 interface TaskFormProps {
   task: Task;
@@ -8,7 +11,12 @@ interface TaskFormProps {
 }
 
 const TaskForm: React.FC<TaskFormProps> = ({ task, onTaskChange }) => {
-  const handleParamChange = (field: string, value: string) => {
+    const [showStartLocation, setShowStartLocation] = useState(false);
+    const [showEndLocation, setShowEndLocation] = useState(false);
+    const [showRobotAction, setShowRobotAction] = useState(false);
+    const [showPayload, setShowPayload] = useState(false);
+
+  const handleParamChange = (field: string, value: string | RobotAction) => {
     const updatedTask = {
       ...task,
       parameters: {
@@ -20,85 +28,120 @@ const TaskForm: React.FC<TaskFormProps> = ({ task, onTaskChange }) => {
   };
 
   return (
-    <ScrollView style={styles.container}>
-      <View style={styles.fieldContainer}>
-        <Text style={styles.label}>任务名称</Text>
+    <ScrollView contentContainerStyle={styles.container}>
         <TextInput
-          style={styles.input}
-          value={task.name}
-          onChangeText={text => onTaskChange({ ...task, name: text })}
+            label="任务名称"
+            value={task.name}
+            onChangeText={text => onTaskChange({ ...task, name: text })}
+            style={styles.input}
+            mode="outlined"
         />
-      </View>
 
-      <View style={styles.fieldContainer}>
-        <Text style={styles.label}>起点</Text>
+        {/* <DropDown
+            label={"起点"}
+            mode={"outlined"}
+            visible={showStartLocation}
+            showDropDown={() => setShowStartLocation(true)}
+            onDismiss={() => setShowStartLocation(false)}
+            value={task.parameters.startLocation}
+            setValue={(value) => handleParamChange('startLocation', value)}
+            list={LOCATIONS.map((location) => ({
+                label: location.label,
+                value: location.value,
+            }))}
+            dropDownStyle={styles.input}
+        /> */}
         <TextInput
-          style={styles.input}
-          value={task.parameters.startLocation}
-          onChangeText={text => handleParamChange('startLocation', text)}
+            label="起点"
+            value={task.parameters.startLocation}
+            onChangeText={text => handleParamChange('startLocation', text)}
+            style={styles.input}
+            mode="outlined"
         />
-      </View>
 
-      <View style={styles.fieldContainer}>
-        <Text style={styles.label}>终点</Text>
+        {/* <DropDown
+            label={"终点"}
+            mode={"outlined"}
+            visible={showEndLocation}
+            showDropDown={() => setShowEndLocation(true)}
+            onDismiss={() => setShowEndLocation(false)}
+            value={task.parameters.endLocation}
+            setValue={(value) => handleParamChange('endLocation', value)}
+            list={LOCATIONS.map((location) => ({
+                label: location.label,
+                value: location.value,
+            }))}
+            dropDownStyle={styles.input}
+        /> */}
         <TextInput
-          style={styles.input}
-          value={task.parameters.endLocation}
-          onChangeText={text => handleParamChange('endLocation', text)}
+            label="终点"
+            value={task.parameters.endLocation}
+            onChangeText={text => handleParamChange('endLocation', text)}
+            style={styles.input}
+            mode="outlined"
         />
-      </View>
-      
-      <View style={styles.fieldContainer}>
-        <Text style={styles.label}>途经点</Text>
+        
         <TextInput
-          style={styles.input}
-          value={task.parameters.waypoint || ''}
-          onChangeText={text => handleParamChange('waypoint', text)}
-          placeholder="可选"
+            label="途经点 (可选)"
+            value={task.parameters.waypoint || ''}
+            onChangeText={text => handleParamChange('waypoint', text)}
+            style={styles.input}
+            mode="outlined"
+        />
+        
+        {/* <DropDown
+            label={"机器人动作"}
+            mode={"outlined"}
+            visible={showRobotAction}
+            showDropDown={() => setShowRobotAction(true)}
+            onDismiss={() => setShowRobotAction(false)}
+            value={task.parameters.robotAction}
+            setValue={(value) => handleParamChange('robotAction', value)}
+            list={ROBOT_ACTIONS.map((action) => ({
+                label: action.label,
+                value: action.value,
+            }))}
+            dropDownStyle={styles.input}
+        /> */}
+        <TextInput
+            label="机器人动作"
+            value={task.parameters.robotAction}
+            onChangeText={text => handleParamChange('robotAction', text)}
+            style={styles.input}
+            mode="outlined"
         />
-      </View>
 
-      <View style={styles.fieldContainer}>
-        <Text style={styles.label}>机器人动作</Text>
-        {/* 在实际应用中，这里最好是一个下拉选择器 */}
+        {/* <DropDown
+            label={"载荷"}
+            mode={"outlined"}
+            visible={showPayload}
+            showDropDown={() => setShowPayload(true)}
+            onDismiss={() => setShowPayload(false)}
+            value={task.parameters.payload}
+            setValue={(value) => handleParamChange('payload', value)}
+            list={PAYLOADS.map((payload) => ({
+                label: payload.label,
+                value: payload.value,
+            }))}
+            dropDownStyle={styles.input}
+        /> */}
         <TextInput
-          style={styles.input}
-          value={task.parameters.robotAction}
-          onChangeText={text => handleParamChange('robotAction', text as RobotAction)}
+            label="载荷"
+            value={task.parameters.payload}
+            onChangeText={text => handleParamChange('payload', text)}
+            style={styles.input}
+            mode="outlined"
         />
-      </View>
-      
-      <View style={styles.fieldContainer}>
-        <Text style={styles.label}>载荷</Text>
-        <TextInput
-          style={styles.input}
-          value={task.parameters.payload}
-          onChangeText={text => handleParamChange('payload', text)}
-        />
-      </View>
     </ScrollView>
   );
 };
 
 const styles = StyleSheet.create({
   container: {
-    flex: 1,
     padding: 16,
   },
-  fieldContainer: {
-    marginBottom: 16,
-  },
-  label: {
-    fontSize: 16,
-    marginBottom: 8,
-    fontWeight: 'bold',
-  },
   input: {
-    borderWidth: 1,
-    borderColor: '#ccc',
-    borderRadius: 4,
-    padding: 12,
-    fontSize: 16,
+    marginBottom: 16,
   },
 });
 
diff --git a/src/context/TasksContext.tsx b/src/context/TasksContext.tsx
new file mode 100644
index 0000000..c3bdbda
--- /dev/null
+++ b/src/context/TasksContext.tsx
@@ -0,0 +1,52 @@
+import React, { createContext, useState, useContext, ReactNode } from 'react';
+import { Task } from '../types/task';
+import { MOCK_TASKS } from '../data/mockData';
+
+interface TasksContextData {
+  tasks: Task[];
+  getTaskById: (id: string) => Task | undefined;
+  updateTask: (updatedTask: Task) => void;
+  runTask: (id: string) => void;
+}
+
+const TasksContext = createContext<TasksContextData>({} as TasksContextData);
+
+export const TasksProvider: React.FC<{children: ReactNode}> = ({ children }) => {
+  const [tasks, setTasks] = useState<Task[]>(MOCK_TASKS);
+
+  const getTaskById = (id: string) => {
+    return tasks.find(task => task.id === id);
+  };
+
+  const updateTask = (updatedTask: Task) => {
+    setTasks(prevTasks =>
+      prevTasks.map(task => (task.id === updatedTask.id ? updatedTask : task))
+    );
+  };
+
+  const runTask = (id: string) => {
+    setTasks(prevTasks =>
+      prevTasks.map(task =>
+        task.id === id ? { ...task, status: 'RUNNING' } : task
+      )
+    );
+    // 模拟任务完成
+    setTimeout(() => {
+        setTasks(prevTasks =>
+            prevTasks.map(task =>
+              task.id === id ? { ...task, status: 'COMPLETED' } : task
+            )
+          );
+    }, 5000);
+  };
+
+  return (
+    <TasksContext.Provider value={{ tasks, getTaskById, updateTask, runTask }}>
+      {children}
+    </TasksContext.Provider>
+  );
+};
+
+export function useTasks() {
+  return useContext(TasksContext);
+}
diff --git a/src/data/mockData.ts b/src/data/mockData.ts
index d7f84e0..44838aa 100644
--- a/src/data/mockData.ts
+++ b/src/data/mockData.ts
@@ -1,6 +1,30 @@
-import { Task } from '../types/task';
+import { Task, RobotAction } from '../types/task';
 import { v4 as uuidv4 } from 'uuid';
 
+export const LOCATIONS = [
+  { label: '炉前缓存区', value: '炉前缓存区' },
+  { label: '热处理上料交接区', value: '热处理上料交接区' },
+  { label: '空料架缓存区', value: '空料架缓存区' },
+  { label: '焊接空料架交接区', value: '焊接空料架交接区' },
+  { label: '热后区', value: '热后区' },
+  { label: 'ALD上料区', value: 'ALD上料区' },
+  { label: '空车区', value: '空车区' },
+];
+
+export const ROBOT_ACTIONS: { label: string; value: RobotAction }[] = [
+  { label: '运输', value: 'TRANSPORT' },
+  { label: '取货', value: 'PICKUP' },
+  { label: '卸货', value: 'DROPOFF' },
+  { label: '等待', value: 'WAIT' },
+];
+
+export const PAYLOADS = [
+    { label: '满料架-A1', value: '满料架-A1' },
+    { label: '空料架-B2', value: '空料架-B2' },
+    { label: '空料架-C3', value: '空料架-C3' },
+    { label: '空车', value: '空车' },
+];
+
 export const MOCK_TASKS: Task[] = [
   {
     id: uuidv4(),
diff --git a/src/screens/TaskEditScreen.tsx b/src/screens/TaskEditScreen.tsx
index b1a8441..5ff157f 100644
--- a/src/screens/TaskEditScreen.tsx
+++ b/src/screens/TaskEditScreen.tsx
@@ -2,11 +2,11 @@ import React, { useState, useEffect } from 'react';
 import { View, StyleSheet, Alert } from 'react-native';
 import { useRoute, useNavigation } from '@react-navigation/native';
 import { RouteProp } from '@react-navigation/native';
+import { useTasks } from '../context/TasksContext';
 import TaskForm from '../components/TaskForm';
 import BottomActionBar from '../components/BottomActionBar';
 import { Task } from '../types/task';
-
-import { MOCK_TASKS } from '../data/mockData'; 
+import { ActivityIndicator } from 'react-native-paper';
 
 type RootStackParamList = {
   TaskEdit: { taskId: string };
@@ -19,16 +19,19 @@ export default function TaskEditScreen() {
   const navigation = useNavigation();
   const { taskId } = route.params;
 
+  const { getTaskById, updateTask, runTask } = useTasks();
+
   const [task, setTask] = useState<Task | null>(null);
+  const [originalTask, setOriginalTask] = useState<Task | null>(null);
   const [isModified, setIsModified] = useState(false);
 
   useEffect(() => {
-    // 根据taskId从模拟数据中查找任务
-    const foundTask = MOCK_TASKS.find(t => t.id === taskId);
+    const foundTask = getTaskById(taskId);
     if (foundTask) {
       setTask(foundTask);
+      setOriginalTask(foundTask);
     }
-  }, [taskId]);
+  }, [taskId, getTaskById]);
 
   const handleTaskChange = (updatedTask: Task) => {
     setTask(updatedTask);
@@ -38,23 +41,43 @@ export default function TaskEditScreen() {
   };
 
   const handleSave = () => {
-    // 在这里处理保存逻辑，比如调用API
-    Alert.alert('已保存', `任务 "${task?.name}" 已被保存。`);
-    setIsModified(false);
+    if (task) {
+      updateTask(task);
+      setOriginalTask(task);
+      setIsModified(false);
+      Alert.alert('已保存', `任务 "${task.name}" 已被保存。`);
+    }
   };
+  
+  const handleRun = () => {
+    if(task) {
+        runTask(task.id);
+        navigation.goBack();
+    }
+  }
+
+  const handleUndo = () => {
+      setTask(originalTask);
+      setIsModified(false);
+  }
+
+  const handleRestore = () => {
+    setTask(originalTask);
+    setIsModified(false);
+  }
 
   if (!task) {
-    return null; // 或者显示一个加载指示器
+    return <ActivityIndicator animating={true} size="large" style={styles.loader}/>;
   }
 
   return (
     <View style={styles.container}>
       <TaskForm task={task} onTaskChange={handleTaskChange} />
       <BottomActionBar
-        onRun={() => Alert.alert('运行', '开始运行任务...')}
+        onRun={handleRun}
         onSave={handleSave}
-        onUndo={() => Alert.alert('撤销', '撤销更改...')}
-        onRestore={() => Alert.alert('恢复', '恢复到初始状态...')}
+        onUndo={handleUndo}
+        onRestore={handleRestore}
         onBack={() => navigation.goBack()}
         isSaveDisabled={!isModified}
       />
@@ -67,4 +90,9 @@ const styles = StyleSheet.create({
     flex: 1,
     backgroundColor: '#fff',
   },
+  loader: {
+      flex: 1,
+      justifyContent: 'center',
+      alignItems: 'center'
+  }
 });
diff --git a/src/screens/TaskListScreen.tsx b/src/screens/TaskListScreen.tsx
index 2910fb8..83c438b 100644
--- a/src/screens/TaskListScreen.tsx
+++ b/src/screens/TaskListScreen.tsx
@@ -1,10 +1,9 @@
-import React, { useState } from 'react';
+import React from 'react';
 import { View, FlatList, StyleSheet } from 'react-native';
 import { useNavigation } from '@react-navigation/native';
 import { StackNavigationProp } from '@react-navigation/stack';
+import { useTasks } from '../context/TasksContext';
 import TaskCard from '../components/TaskCard';
-import { Task } from '../types/task';
-import { MOCK_TASKS } from '../data/mockData';
 
 type RootStackParamList = {
   TaskList: undefined;
@@ -14,7 +13,7 @@ type RootStackParamList = {
 type TaskListNavigationProp = StackNavigationProp<RootStackParamList, 'TaskList'>;
 
 export default function TaskListScreen() {
-  const [tasks] = useState<Task[]>(MOCK_TASKS);
+  const { tasks } = useTasks();
   const navigation = useNavigation<TaskListNavigationProp>();
 
   const handlePressTask = (taskId: string) => {
@@ -28,7 +27,7 @@ export default function TaskListScreen() {
         renderItem={({ item }) => <TaskCard task={item} onPress={handlePressTask} />}
         keyExtractor={item => item.id}
         numColumns={2}
-        columnWrapperStyle={styles.row}
+        contentContainerStyle={styles.list}
       />
     </View>
   );
@@ -37,9 +36,8 @@ export default function TaskListScreen() {
 const styles = StyleSheet.create({
   container: {
     flex: 1,
-    backgroundColor: '#f5f5f5',
-  },
-  row: {
-    justifyContent: 'center',
   },
+  list: {
+      padding: 8,
+  }
 });