uni-app把网络图片转成本地。

//把网络图片改成本地图片
           getNetworkImage(url) {
                return new Promise((resolve, reject) => {
                    uni.downloadFile({
                        url,
                        success: (e) => {
                            const p = e.tempFilePath
                            if (p.indexOf('json') > -1) {
                                reject(p)
                                return false
                            }
                            resolve(p)
                        },
                        fail: (r) => {
                            reject(r)
                        }
                    })
                })
            },