fix: 更新radioGroup的状态

packages/taro-components-rn/src/components/RadioGroup/PropsType.tsx

@@ -20,6 +20,7 @@ export interface RadioGroupState {
 export interface RadioGroupProps extends FormItemProps, _RadioGroupProps {
   children?: React.ReactNode;
   style?: StyleProp<ViewStyle> | any;
+  checkedValue?: string;
   onChange?: (evt: EventGroupOnChange) => void;
   _onGroupDataInitial?: (value: any) => void;
 }

packages/taro-components-rn/src/components/RadioGroup/index.tsx

@@ -14,8 +14,13 @@
 
 class _RadioGroup extends React.Component<RadioGroupProps, RadioGroupState> {
   static displayName = '_RadioGroup'
-  state: RadioGroupState = {
-    checkedValue: undefined
+
+  constructor(props: RadioGroupProps) {
+    super(props);
+    const {checkedValue} = props;
+    this.state = {
+      checkedValue
+    };
   }
 
   // eslint-disable-next-line default-param-last
@@ -30,6 +35,14 @@
     })
   }
 
+  componentDidUpdate (prevProps) {
+    // 检测 props 是否发生变化
+    if (this.props.checkedValue !== prevProps.checkedValue) {
+      // 执行相应的操作，比如更新组件状态
+      this.setState({ checkedValue: this.props.checkedValue });
+    }
+  }
+
   findAndAttachCb = (children: React.ReactNode): React.ReactNode => {
     return React.Children.toArray(children).map((child: any) => {
       if (!child.type) return child