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6 天以前 855a7e18a795f0db2453a19e3e8f26ba2ff553b4
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<?xml version="1.0" encoding="utf-8"?>
<MotionScene
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:motion="http://schemas.android.com/apk/res-auto">
 
    <Transition
        motion:constraintSetEnd="@+id/end"
        motion:constraintSetStart="@id/start"
        motion:duration="2000">
        <KeyFrameSet>
            <KeyAttribute motion:framePosition="10"
                android:alpha="1"
                motion:motionTarget="@id/result_1"/>
            <KeyAttribute motion:framePosition="80"
                android:alpha="1"
                motion:motionTarget="@id/result_1"/>
 
            <KeyAttribute motion:framePosition="20"
                android:scaleX="0.9"
                android:scaleY="0.9"
                motion:motionTarget="@id/result_1"/>
            <KeyAttribute motion:framePosition="25"
                android:scaleX="1.1"
                android:scaleY="1.1"
                motion:motionTarget="@id/result_1"/>
            <KeyAttribute motion:framePosition="30"
                android:scaleX="0.9"
                android:scaleY="0.9"
                motion:motionTarget="@id/result_1"/>
            <KeyAttribute motion:framePosition="35"
                android:scaleX="1.1"
                android:scaleY="1.1"
                motion:motionTarget="@id/result_1"/>
            <KeyAttribute motion:framePosition="40"
                android:scaleX="1.0"
                android:scaleY="1.0"
                motion:motionTarget="@id/result_1"/>
        </KeyFrameSet>
 
    </Transition>
 
    <ConstraintSet android:id="@+id/start">
        <Constraint android:id="@+id/result_1"
            android:alpha="0"
            motion:layout_constraintStart_toStartOf="@+id/iv_img"
            motion:layout_constraintEnd_toEndOf="@+id/iv_img"
            motion:layout_constraintTop_toBottomOf="@+id/line_in"
            motion:layout_constraintBottom_toBottomOf="@+id/iv_img"
            android:layout_width="50dp"
            android:layout_height="50dp"/>
    </ConstraintSet>
 
    <ConstraintSet android:id="@+id/end">
        <Constraint android:id="@+id/result_1"
            android:alpha="1"
            motion:layout_constraintStart_toStartOf="@+id/iv_img"
            motion:layout_constraintEnd_toEndOf="@+id/iv_img"
            motion:layout_constraintTop_toBottomOf="@+id/line_in"
            motion:layout_constraintBottom_toBottomOf="@+id/iv_img"
            android:layout_width="50dp"
            android:layout_height="50dp"/>
    </ConstraintSet>
</MotionScene>