70 lines
2.8 KiB
Java
70 lines
2.8 KiB
Java
package androidx.transition;
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import android.animation.Animator;
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import android.animation.ObjectAnimator;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.view.View;
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import android.view.ViewGroup;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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public class ChangeScroll extends Transition {
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private static final String[] PROPERTIES = {"android:changeScroll:x", "android:changeScroll:y"};
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private static final String PROPNAME_SCROLL_X = "android:changeScroll:x";
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private static final String PROPNAME_SCROLL_Y = "android:changeScroll:y";
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public ChangeScroll() {
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}
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public ChangeScroll(Context context, AttributeSet attributeSet) {
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super(context, attributeSet);
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}
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private void captureValues(TransitionValues transitionValues) {
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transitionValues.values.put("android:changeScroll:x", Integer.valueOf(transitionValues.view.getScrollX()));
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transitionValues.values.put("android:changeScroll:y", Integer.valueOf(transitionValues.view.getScrollY()));
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}
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@Override // androidx.transition.Transition
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public void captureEndValues(@NonNull TransitionValues transitionValues) {
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captureValues(transitionValues);
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}
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@Override // androidx.transition.Transition
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public void captureStartValues(@NonNull TransitionValues transitionValues) {
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captureValues(transitionValues);
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}
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@Override // androidx.transition.Transition
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@Nullable
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public Animator createAnimator(@NonNull ViewGroup viewGroup, @Nullable TransitionValues transitionValues, @Nullable TransitionValues transitionValues2) {
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ObjectAnimator objectAnimator;
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ObjectAnimator objectAnimator2 = null;
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if (transitionValues == null || transitionValues2 == null) {
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return null;
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}
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View view = transitionValues2.view;
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int intValue = ((Integer) transitionValues.values.get("android:changeScroll:x")).intValue();
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int intValue2 = ((Integer) transitionValues2.values.get("android:changeScroll:x")).intValue();
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int intValue3 = ((Integer) transitionValues.values.get("android:changeScroll:y")).intValue();
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int intValue4 = ((Integer) transitionValues2.values.get("android:changeScroll:y")).intValue();
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if (intValue != intValue2) {
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view.setScrollX(intValue);
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objectAnimator = ObjectAnimator.ofInt(view, "scrollX", intValue, intValue2);
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} else {
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objectAnimator = null;
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}
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if (intValue3 != intValue4) {
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view.setScrollY(intValue3);
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objectAnimator2 = ObjectAnimator.ofInt(view, "scrollY", intValue3, intValue4);
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}
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return TransitionUtils.mergeAnimators(objectAnimator, objectAnimator2);
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}
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@Override // androidx.transition.Transition
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@Nullable
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public String[] getTransitionProperties() {
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return PROPERTIES;
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}
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}
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