[bugfix] Swipe: add defensive code

[chenjiahan]

No description provided.

[codecov-io]

Codecov Report

Merging #2253 into dev will decrease coverage by 0.09%.
The diff coverage is 50%.

@@            Coverage Diff            @@
##              dev    #2253     +/-   ##
=========================================
- Coverage   87.18%   87.09%   -0.1%     
=========================================
  Files         100      100             
  Lines        1772     1774      +2     
  Branches      361      363      +2     
=========================================
  Hits         1545     1545             
  Misses        177      177             
- Partials       50       52      +2

Impacted Files	Coverage Δ
packages/swipe/index.vue	82.41% <50%> (-1.86%)	⬇️

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