Android6以上很多权限需要动态添加权限

    /**权限 声明*/
    internal var permissions = arrayOf(
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.READ_EXTERNAL_STORAGE)

    /**检查权限是否开启 */
    private fun isPermission() : Boolean{
        var ispermission  = true
        if (Build.VERSION.SDK_INT >= 23){
            mPermissionList.clear()
            for (i in permissions.indices) {
                if (ContextCompat.checkSelfPermission(
                        this,
                        permissions[i]
                    ) != PackageManager.PERMISSION_GRANTED
                ) {
                    mPermissionList.add(permissions[i])
                }
            }
            if (mPermissionList.size > 0) {
                ispermission = false
                ActivityCompat.requestPermissions(this, permissions, 100)
            }else{
                Log.e("test","权限都打开了")
                ispermission = true
            }
        }
        return ispermission
    }

参考着来做吧