多图像选择器库权限问题

【问题标题】：Multi-Image picker Library Permission issue多图像选择器库权限问题
【发布时间】：2021-05-28 06:25:20
【问题描述】：

使用博览会版本 37..0.12

在尝试加载多张图片时，读取图片时出现权限错误

以下是错误

Permissions.askAsync(Permissions.CAMERA,Permissions.CAMERA_ROLL, Permissions.READ_EXTERNAL_STORAGE);
Error: [Unhandled promise rejection: Error: Failed to get permissions]

在 Android 中使用多图像选择器库时会发生这种情况：“expo-image-picker-multiple”：“1.4.0”

【问题讨论】：

标签： android permissions expo

【解决方案1】：

我假设您已经在清单中使用了此权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />.

如果是，可能是因为您在项目中没有这样的运行时权限

val requestPermissionLauncher =
    registerForActivityResult(RequestPermission()
    ) { isGranted: Boolean ->
        if (isGranted) {
            // Permission is granted. Continue the action or workflow in your
            // app.
        } else {
            // Explain to the user that the feature is unavailable because the
            // features requires a permission that the user has denied. At the
            // same time, respect the user's decision. Don't link to system
            // settings in an effort to convince the user to change their
            // decision.
        }
    }

Ref: Android Docs for Runtime Permission

【讨论】：