Android开发 8.0及以上调用相机/相册,并根据Uri获取图像绝对路径,并进行文件上传

上传者: bashendixie5 | 上传时间: 2025-10-22 21:01:43 | 文件大小: 39.13MB | 文件类型: ZIP
参考链接:https://skydance.blog.csdn.net/article/details/129745348 一、权限问题 二、调用相机 1、声明provider 首先,我们需要在主配置文件中声明provider,与activity同级别。之所以要用到provider,是因为从Android7.0开始,就不允许在 App 间,使用 file:// 的方式,传递一个 File ,否则就会抛出异常,而provider的作用恰好就是用过 content://的模式替换掉 file://,看上去只是换了个前缀,但其实是有真实路径转为了虚拟路径。 2、调用相机 首先创建一个文件,用于保存拍照图像,然后根据不同系统版本获取Uri,传递给Intent,然后调起相机(可以考虑将outputImage、imageUri设置为全局变量)。 3、处理回调 使用BitmapFactory读取imageUri,得到bitmap,然后进行一些压缩,然后显示。

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