ImageView可在android中缩小和缩放图像动画

我希望图像缩小和缩放为Twitter闪屏动画，但我无法首先缩小图像和缩放。这是我的密码

imageView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            imageView.animate()
                    .setStartDelay(500)
                    .setDuration(1000)
                    .scaleX(20)
                    .scaleY(20)
                    .alpha(0);
        }
    });

---

你没有提到变量中的比例

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" >
    <scale
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000"
    android:fromXScale="1.0"
    android:fromYScale="1.0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toXScale="0.5"
    android:toYScale="0.5" >
    </scale>
 </set>

---

您没有提到变量的比例

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" >
    <scale
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000"
    android:fromXScale="1.0"
    android:fromYScale="1.0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toXScale="0.5"
    android:toYScale="0.5" >
    </scale>
 </set>

---

使用

ObjectAnimator

几乎可以制作任何动画，而且非常流畅

下面是一个示例代码。在这种情况下，图像将从1x放大到2x，您可以根据需要调整值。现在，如果要缩小，请将2x更改为0.5x，这将使图像缩小到原始图像的50%

    ObjectAnimator scaleXAnimation = ObjectAnimator.ofFloat(imageView, "scaleX", 1.0f, 2.0f);
    scaleXAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
    scaleXAnimation.setDuration(1500);
    ObjectAnimator scaleYAnimation = ObjectAnimator.ofFloat(imageView, "scaleY", 1.0f, 2.0f);
    scaleYAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
    scaleYAnimation.setDuration(1500);
    ObjectAnimator alphaAnimation = ObjectAnimator.ofFloat(imageView, "alpha", 1.0F, 0F);
    alphaAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
    alphaAnimation.setDuration(1500);


    AnimatorSet animatorSet = new AnimatorSet();
    animatorSet.play(scaleXAnimation).with(scaleYAnimation).with(alphaAnimation);
    animatorSet.setStartDelay(500);
    animatorSet.start();

---

您几乎可以使用

ObjectAnimator

制作任何动画，而且非常流畅

下面是一个示例代码。在这种情况下，图像将从1x放大到2x，您可以根据需要调整值。现在，如果要缩小，请将2x更改为0.5x，这将使图像缩小到原始图像的50%

    ObjectAnimator scaleXAnimation = ObjectAnimator.ofFloat(imageView, "scaleX", 1.0f, 2.0f);
    scaleXAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
    scaleXAnimation.setDuration(1500);
    ObjectAnimator scaleYAnimation = ObjectAnimator.ofFloat(imageView, "scaleY", 1.0f, 2.0f);
    scaleYAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
    scaleYAnimation.setDuration(1500);
    ObjectAnimator alphaAnimation = ObjectAnimator.ofFloat(imageView, "alpha", 1.0F, 0F);
    alphaAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
    alphaAnimation.setDuration(1500);


    AnimatorSet animatorSet = new AnimatorSet();
    animatorSet.play(scaleXAnimation).with(scaleYAnimation).with(alphaAnimation);
    animatorSet.setStartDelay(500);
    animatorSet.start();