first commit

assets/scripts/utils/Toast.ts

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+import { _decorator, Component, Label } from 'cc';
+const { ccclass, property } = _decorator;
+
+@ccclass('Toast')
+export default class Toast extends Component {
+    @property(Label)
+    msgLabel: Label | null = null;
+    protected onRemove():void{
+        this.node.active = false;
+    }
+    public setText(text:string):void{
+        this.unschedule(this.onRemove);
+        this.schedule(this.onRemove, 2);
+        this.msgLabel.string = text;
+    }
+}