InputMethodController.on('sendKeyboardStatus')无法监听键盘的显示隐藏事件

let windowClass: window.Window | undefined = undefined;
try {
window.getLastWindow(this.context, (err: BusinessError, data) => {
const errCode: number = err.code;
if (errCode) {
console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(err));
return;
}
windowClass = data;
console.info('Succeeded in obtaining the top window. Data: ' + JSON.stringify(data));

windowClass.on('avoidAreaChange', (data) => {
console.info('Succeeded in enabling the listener for system avoid area changes. type:' + JSON.stringify(data.type) + ', area: ' + JSON.stringify(data.area));
});
});
} catch (exception) {
console.error('Failed to obtain the top window. Cause: ' + JSON.stringify(exception));
}