AtInputNumber组建直接输入没法通过setState更改value

[马克思的飞]

一个列表渲染，每项都可以更改value，直接输入，没法更改value，value值就是输入的值，通过setState更改没反应。
const shoplistview = shopCarList.map((item,index)=>{
var num = item.num;
return <View className="shopCarBox">
<CheckboxGroup className='checkboxgroup' onChange={this.checkboxChange.bind(this,item,index)}>
<label class="checkbox">
<Checkbox value={item.value} checked={item.checked}/>

            </label>
            <Image src={item.goods.cover} onClick={this.goGoodInfo.bind(this,item)}></Image>
              <View className='msg_right' onClick={this.goGoodInfo.bind(this,item)}>
                <View>{item.goods.name}</View>
                <View className='dec'>默认</View>
                <View className='money'>
					¥{item.goods.discountPrice ? item.goods.discountPrice : item.goods.price}
				</View>  
				
              </View>
          </CheckboxGroup>
          <AtInputNumber
            className='atinput'
            min={1}
            step={1}
			value={item.num}
			width={50}
			onChange={this.handleChange.bind(this,item,index)}
          />
			<Image src={delIcon} className="del_icon" onClick={this.delShopCar.bind(this,item)}></Image>
			
          </View> 
    })

handleChange(item,index,value){//修改购物车商品数量
console.log('item:',item,',index:',index,',value:',value)

	let loading = Taro.showLoading({
		title: '修改中',
		mask: true,
	})
	let that = this;
	let {userInfo} = this.props.userInfo;
	let {shopCarList} = this.state;
	let num = shopCarList[index].num;
	console.log('num:',num)
	let params = {
		userId: userInfo.id,
		goodsId: item.goods.id,
		num: value,
	}
   	Taro.request({
		url:config.url.shop_server+'/api/shopping/cart/updateGoodsNum',
		header: {
			'content-type':'application/x-www-form-urlencoded'
		},
		data: params,
		method:'POST'
    })
    .then(res => {
    	Taro.hideLoading();
        console.log('handleChange-res:',res)
        if(res.data.code == 1){
        	shopCarList[index].num = Number(value);
        	console.log('shopCarList:',shopCarList)
        	that.setState({
        		shopCarList,
        	},() => {
        		that.setTotalPriceAndState();
        	})
        }else{
			console.log('num1:',shopCarList[index].num)
			shopCarList[index].num = Number(num);
			that.setState({
        		shopCarList,
        	},() => {
				console.log('shopCarList:',this.state.shopCarList)
        		that.setTotalPriceAndState();
        	})
      	 	Taro.showToast({
				title: res.data.message,
				icon: 'none'
			});
			
        }
    })
}

[马克思的飞]

还有一个思路，怎么禁止直接输入，只允许通过点击+-更改value