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diff --git a/app/libs/sino-lw-sdk-v3.1.0.aar b/app/libs/sino-lw-sdk-v3.1.0.aar
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diff --git a/app/src/main/java/com/project/survey/util/PermissionsUtil.kt b/app/src/main/java/com/project/survey/util/PermissionsUtil.kt
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+++ b/app/src/main/java/com/project/survey/util/PermissionsUtil.kt
@@ -0,0 +1,42 @@
+package com.project.survey.util
+
+import android.content.Context
+import blankj.utilcode.util.ToastUtils
+import com.hjq.permissions.OnPermissionCallback
+import com.hjq.permissions.Permission
+import com.hjq.permissions.XXPermissions
+import java.lang.ref.WeakReference
+
+object PermissionsUtil {
+
+    fun checkStoragePermission(context: Context, onGranted: () -> Unit) {
+        WeakReference(context).get()?.let { ctx ->
+            val permissions = arrayListOf(Permission.MANAGE_EXTERNAL_STORAGE)
+            if (XXPermissions.isGranted(ctx, permissions)) {
+                onGranted()
+                return
+            }
+            XXPermissions.with(ctx)
+                .permission(permissions)
+                .request(object : OnPermissionCallback {
+                    override fun onGranted(permissions: MutableList<String>, allGranted: Boolean) {
+                        if (allGranted) {
+                            onGranted()
+                        }
+                    }
+
+                    override fun onDenied(
+                        permissions: MutableList<String>,
+                        doNotAskAgain: Boolean
+                    ) {
+                        ToastUtils.showShort("请手动授予文件读写权限")
+                        if (doNotAskAgain) {
+                            XXPermissions.startPermissionActivity(ctx, permissions)
+                        } else {
+                            checkStoragePermission(ctx, onGranted)
+                        }
+                    }
+                })
+        }
+    }
+}
\ No newline at end of file