feat(Form): 增加Form.create兼容class组件使用

Author: ChenlingasMx

packages/core/src/Form/README.md

@@ -197,6 +197,58 @@ const FormDemo = () => {
 ```
 <!--End-->
 
+### class组件获取form
+
+<!--DemoStart--> 
+```jsx
+import { SafeAreaView,View,Text } from 'react-native';
+import { Form,Button,Flex } from '@uiw/react-native';
+
+class FormDemo extends React.Component {
+  render(){
+    const { form } = this.props
+    const schema = [
+      {
+        type: 'input',
+        field: 'name',
+        name: '输入框',
+        attr: {},
+        required: true,
+        validate: (val) => (!val ? `请输入name` : ''),
+      }
+    ];
+    return (
+      <SafeAreaView>
+        <Form
+          form={form}
+          schema={schema}
+          initialValues={{ name: '王滴滴', rate: 4 }}
+          watch={{
+            name: (value: unknown) => console.log('value', value),
+          }}
+          customComponentList={{
+            render: <Slider />,
+          }}
+          changeValidate={true}
+        />
+        <Button
+          type="primary"
+          onPress={() => form.validateFields().then((values) => {}).catch((errors) => {}) }>
+            确定
+        </Button>
+      </SafeAreaView>
+    );
+  }
+}
+
+const FormComponent = Form.create(FormDemo)
+
+export default FormComponent;
+```
+<!--End-->
+
+
+
 ### FormProps
 ```ts
 interface FormProps<FormData = any, FieldValue = FormData[keyof FormData], FieldKey extends KeyType = keyof FormData> {

packages/core/src/Form/createForm.tsx

@@ -0,0 +1,16 @@
+import React from 'react';
+import useForm from './hooks/useForm';
+import { FormProps } from './types';
+
+function create(Com: React.FC<FormProps>) {
+  return (props: FormProps) => {
+    const form = useForm();
+    const baseProps = {
+      ...props,
+      form: form,
+    };
+    return <Com {...baseProps} />;
+  };
+}
+
+export default create;

packages/core/src/Form/index.tsx

@@ -1,14 +1,17 @@
 import Form from './form';
+import create from './createForm';
 import useForm from './hooks/useForm';
 
 type RefForm = typeof Form;
 
 export interface FormComponent extends RefForm {
   useForm: typeof useForm;
+  create: typeof create;
 }
 
 const FormComp: FormComponent = Form as FormComponent;
 
 FormComp.useForm = useForm;
+FormComp.create = create;
 
 export default FormComp;