<set xmlns:android="http://schemas.android.com/apk/res/android">
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<!-- Before rotating, immediately set the alpha to 0. -->
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<objectAnimator
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android:valueFrom="1.0"
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android:valueTo="0.0"
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android:propertyName="alpha"
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android:duration="0" />
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<!-- Rotate. -->
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<objectAnimator
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android:valueFrom="180"
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android:valueTo="0"
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android:propertyName="rotationY"
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android:interpolator="@android:interpolator/accelerate_decelerate"
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android:duration="@integer/card_flip_time_full" />
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<!-- Half-way through the rotation (see startOffset), set the alpha to 1. -->
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<objectAnimator
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android:valueFrom="0.0"
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android:valueTo="1.0"
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android:propertyName="alpha"
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android:startOffset="@integer/card_flip_time_half"
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android:duration="1" />
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</set>
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