uniapp 获取键盘高度
uni.onKeyboardHeightChange((res) => {
var jianpanheihg=res.height;
console.log(jianpanheihg);
if(jianpanheihg==0){
that.recivePostMessage();
}else{
that.jianpanheihg=jianpanheihg;
that.message();
}
})