[Improvement] List: add check method (#1590)

packages/list/en-US.md

@@ -64,3 +64,11 @@ export default {
 | Event | Description | Arguments |
 |-----------|-----------|-----------|
 | load | Triggered when the distance between the scrollbar and the bottom is less than offset | - |
+
+### Methods
+
+Use ref to get list instance and call instance methods
+
+| Name | Attribute | Return value | Description |
+|-----------|-----------|-----------|-------------|
+| check | - | - | Check scroll position |

packages/list/index.vue

@@ -41,7 +41,7 @@ export default create({
     this.handler(true);
 
     if (this.immediateCheck) {
-      this.$nextTick(this.onScroll);
+      this.$nextTick(this.check);
     }
   },
 
@@ -59,16 +59,16 @@ export default create({
 
   watch: {
     loading() {
-      this.$nextTick(this.onScroll);
+      this.$nextTick(this.check);
     },
 
     finished() {
-      this.$nextTick(this.onScroll);
+      this.$nextTick(this.check);
     }
   },
 
   methods: {
-    onScroll() {
+    check() {
       if (this.loading || this.finished) {
         return;
       }
@@ -109,7 +109,7 @@ export default create({
       /* istanbul ignore else */
       if (this.binded !== bind) {
         this.binded = bind;
-        (bind ? on : off)(this.scroller, 'scroll', this.onScroll);
+        (bind ? on : off)(this.scroller, 'scroll', this.check);
       }
     }
   }

packages/list/zh-CN.md

@@ -64,3 +64,11 @@ export default {
 | 事件名 | 说明 | 参数 |
 |-----------|-----------|-----------|
 | load | 滚动条与底部距离小于 offset 时触发 | - |
+
+### 方法
+
+通过 ref 可以获取到 list 实例并调用实例方法
+
+| 方法名 | 参数 | 返回值 | 介绍 |
+|-----------|-----------|-----------|-------------|
+| check | - | - | 检查当前的滚动位置，若已滚动至底部，则会触发 load 事件 |