SocketTask.onClose

解释：监听 WebSocket 连接关闭事件。

方法参数

Function callback

示例 

在开发者工具中打开

图片示例

代码示例

<button type="primary" disabled="{{disabled}}" bindtap="socketTaskOnClose">socketTask.onClose</button>

Page({
    data: {
        disabled: true
    },
    onShow() {
        const socketTask = swan.connectSocket({
            url: 'wss://echo.websocket.org',
            success: res => {
                swan.showToast({
                    title: 'websocket 已打开',
                    icon: 'none'
                });
                this.setData('disabled', false)
                console.log('connectSocket success', res.socketTaskId)
            },
            fail: err => {
                swan.showToast({
                    title: 'websocket打开失败',
                    icon: 'none'
                });
                console.log('connectSocket fail', err);
            }
        });
        socketTask.onClose(res => {
            console.log('socketTask.onClose success', res);
            swan.showModal({
                title: '监听到成功的关闭事件',
                content: JSON.stringify(res.reason)
            });
        }),
        this.socketTask = socketTask;
    },
    socketTaskOnClose() {
        this.socketTask.close();
    }
});