java - 动画 View 并在动画后保持可见

Question

我有两个指示器，每个都需要不可见才能启动。我希望它们在动画化后可见，我该怎么做？现在他们动画然后消失，这里是代码:

                indicator.setVisibility(View.INVISIBLE);
                indicator2.setVisibility(View.INVISIBLE);
                Animation fadeInAnimation = AnimationUtils.loadAnimation(getActivity(), R.anim.fade_in_view);

                indicator.startAnimation(fadeInAnimation);
                indicator2.startAnimation(fadeInAnimation);

我的 xml 是:

<?xml version="1.0" encoding="UTF-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <alpha
        android:fromAlpha="0.0"
        android:toAlpha="1.0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:duration="1500"
        android:repeatCount="0" />
</set>

Answer 1

尝试这样做:fadeInAnimation.setFillAfter(true)

或

<?xml version="1.0" encoding="UTF-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <alpha
        android:fromAlpha="0.0"
        android:toAlpha="1.0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:duration="1500"
        android:repeatCount="0"
        android:fillAfter="true"/>
</set>