handle memory issue

[YangSen-qn]

No description provided.

[codecov]

Codecov Report

Merging #426 into develop will increase coverage by 0.35%.
The diff coverage is 85.24%.

@@              Coverage Diff              @@
##             develop     #426      +/-   ##
=============================================
+ Coverage      72.28%   72.63%   +0.35%     
- Complexity       848      855       +7     
=============================================
  Files             73       73              
  Lines           4513     4538      +25     
  Branches         671      672       +1     
=============================================
+ Hits            3262     3296      +34     
+ Misses           825      817       -8     
+ Partials         426      425       -1     

Impacted Files	Coverage Δ	Complexity Δ
.../main/java/com/qiniu/android/common/Constants.java	0.00% <ø> (ø)	0.00 <0.00> (ø)
...main/java/com/qiniu/android/http/ResponseInfo.java	60.56% <0.00%> (ø)	34.00 <2.00> (ø)
.../qiniu/android/http/request/HttpSingleRequest.java	82.00% <0.00%> (+3.15%)	9.00 <0.00> (ø)
...n/java/com/qiniu/android/http/request/Request.java	76.92% <ø> (ø)	7.00 <0.00> (ø)
...com/qiniu/android/http/request/UploadFileInfo.java	88.41% <ø> (ø)	28.00 <0.00> (ø)
...n/java/com/qiniu/android/storage/ResumeUpload.java	71.52% <75.00%> (+0.40%)	11.00 <2.00> (ø)
.../qiniu/android/storage/ConcurrentResumeUpload.java	67.71% <83.33%> (+0.51%)	12.00 <1.00> (ø)
...roid/http/request/httpclient/SystemHttpClient.java	75.11% <91.66%> (+0.81%)	22.00 <1.00> (ø)
...qiniu/android/http/request/RequestTransaction.java	90.17% <93.75%> (-0.25%)	19.00 <1.00> (+1.00)	⬇️
...ain/java/com/qiniu/android/collect/ReportItem.java	75.75% <100.00%> (ø)	30.00 <0.00> (ø)
... and 6 more