[new feature] Uploader: support bind v-model

packages/uploader/demo/index.vue

@@ -1,12 +1,19 @@
 <template>
   <demo-section>
     <demo-block :title="$t('basicUsage')">
-      <van-uploader preview />
+      <van-uploader :after-read="afterRead" />
+    </demo-block>
+
+    <demo-block :title="$t('preview')">
+      <van-uploader
+        v-model="fileList"
+        multiple
+      />
     </demo-block>
 
     <demo-block :title="$t('maxCount')">
       <van-uploader
-        preview
+        v-model="fileList2"
         multiple
         :max-count="2"
       />
@@ -30,14 +37,29 @@ export default {
   i18n: {
     'zh-CN': {
       upload: '上传图片',
-      maxCount: '上传数量限制',
+      preview: '图片预览',
+      maxCount: '限制上传数量',
       uploadStyle: '自定义上传样式'
     },
     'en-US': {
       upload: 'Upload Image',
+      preview: 'Preview Image',
       maxCount: 'Max Count',
       uploadStyle: 'Upload Style'
     }
+  },
+
+  data() {
+    return {
+      fileList: [],
+      fileList2: []
+    };
+  },
+
+  methods: {
+    afterRead(file) {
+      console.log(file);
+    }
   }
 };
 </script>