uniapp app端画海报

在uniapp中，你可以使用canvas来绘制和生成海报。首先，你需要将网络图片下载到本地，可以使用uni.downloadFile函数来实现。使用该函数将网络图片下载到本地后，你可以将其转换为base64格式。你可以使用pathToBase64函数将图片路径转换为base64编码。接下来，你可以使用canvas来渲染海报，将下载并转换后的图片绘制在canvas上。最后，你可以通过uni.canvasToTempFilePath函数将canvas导出为临时文件，从而生成海报。你可以将导出的海报保存到本地或者分享给其他用户。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [uniapp 生成海报图片base64转换 ](https://download.csdn.net/download/qq_36003998/12330793)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *2* [uniapp使用canvas画海报](https://blog.csdn.net/Yadira9/article/details/128726482)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *3* [uniapp使用canvas画海报二维码](https://blog.csdn.net/Blue54/article/details/124832963)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
[ .reference_list ]