修复移动端销毁错误bug

packages/artplayer/src/index.js

@@ -108,11 +108,10 @@ class Artplayer extends Emitter {
     }
 
     init() {
-        this.isFocus = false;
-        
         this.whitelist = new Whitelist(this);
         this.template = new Template(this);
         if (this.whitelist.state) {
+            this.isFocus = false;
             this.storage = new Storage(this);
             this.i18n = new I18n(this);
             this.notice = new Notice(this);
@@ -139,9 +138,11 @@ class Artplayer extends Emitter {
     }
 
     destroy(removeHtml = false) {
-        Artplayer.instances.splice(Artplayer.instances.indexOf(this), 1);
-        this.events.destroy();
+        if (this.events) {
+            this.events.destroy();
+        }
         this.template.destroy(removeHtml);
+        Artplayer.instances.splice(Artplayer.instances.indexOf(this), 1);
         this.emit('destroy');
     }
 }