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Fix issue #336 #339

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Fix issue #336 #339

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Fix issue #336
ly85206559 Aug 2, 2017
a4584a7
Put code into if conditional statement.
ly85206559 Aug 8, 2017
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4 changes: 3 additions & 1 deletion flexbox/src/main/java/com/google/android/flexbox/FlexboxLayoutManager.java
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Original file line number Diff line number Diff line change
Expand Up @@ -368,8 +368,10 @@ public List<FlexLine> getFlexLines() {

@Override
public int getDecorationLengthMainAxis(View view, int index, int indexInFlexLine) {
View v = mRecycler.getViewForPosition(index);
calculateItemDecorationsForChild(v, TEMP_RECT);
if (isMainAxisDirectionHorizontal()) {
return getLeftDecorationWidth(view) + getRightDecorationWidth(view);
return getLeftDecorationWidth(v) + getRightDecorationWidth(v);
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@ghost ghost Aug 7, 2017 •
edited by ghost
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I really don't like this solution. Why? You're creating new View instance instead of reusing the existing one.

Code from lines 371 and 372 you should put into if conditional statement, but instead of using new v variable, please use existing view.

To be more precise:

if (isMainAxisDirectionHorizontal()) {
         view = mRecycler.getViewForPosition(index);
         calculateItemDecorationsForChild(view, TEMP_RECT);
         return getLeftDecorationWidth(view) + getRightDecorationWidth(view);
} else {
          return getTopDecorationHeight(view) + getBottomDecorationHeight(view);
}

Another thing - did you write any test or check it on more than 3 different devices?

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@ly85206559 ly85206559 Aug 8, 2017

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Thank you.I have modify the code.
But i have to say.
view = mRecycler.getViewForPosition(index);
calculateItemDecorationsForChild(view, TEMP_RECT);
Here actually is not the best solution because calculateItemDecorationsForChild is invoked frequent.But it is a solution.
At last. I write the test code and test on HUAWEI and SAMSUNG devices.

} else {
return getTopDecorationHeight(view) + getBottomDecorationHeight(view);
}
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