动画我使用从支持库23.2.0动画载体,像这样:AnimatedVectorDrawable在支持库和 “pathData”
我试图动画 “pathData”(将线条变形到另一个)。我的代码看起来像这样。
绘制/ ic_done.xml:
<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportHeight="24.0"
android:viewportWidth="24.0">
<path
android:name="tick"
android:pathData="M4.8,12L9,16.2L20,8"
android:strokeColor="#FF000000" />
</vector>
绘制/ ic_done_animated.xml:
<?xml version="1.0" encoding="utf-8"?>
<animated-vector xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:drawable="@drawable/ic_done">
<target
android:name="tick"
android:animation="@animator/tick_path_animation" />
</animated-vector>
动画/ tick_path_animation.xml:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:ordering="sequentially">
<objectAnimator
android:duration="200"
android:propertyName="pathData"
android:valueFrom="M4.8,12L4.8,12L4.8,12"
android:valueTo="M4.8,12L9,16.2L9,16.2"
android:valueType="pathType" />
<objectAnimator
android:duration="200"
android:propertyName="pathData"
android:valueFrom="M4.8,12L9,16.2L9,16.2"
android:valueTo="M4.8,12L9,16.2L20,8"
android:valueType="pathType" />
</set>
Java代码:
ImageView vImgAnimated = findByViewId(R.id.img);
AnimatedVectorDrawableCompat animatedVector = AnimatedVectorDrawableCompat.create(getContext(), R.drawable.ic_done_animated);
vImgAnimated.setImageDrawable(animatedVector);
animatedVector.start();
它运作良好,新的设备上API级别21,但我有API级别16上装置了一个问题:
java.lang.NumberFormatException: Invalid int: "M4.8,12L4.8,12L4.8,12"
at java.lang.Integer.invalidInt(Integer.java:138)
at java.lang.Integer.parse(Integer.java:375)
at java.lang.Integer.parseInt(Integer.java:366)
at com.android.internal.util.XmlUtils.convertValueToInt(XmlUtils.java:123)
at android.content.res.TypedArray.getInt(TypedArray.java:254)
at android.animation.AnimatorInflater.loadAnimator(AnimatorInflater.java:258)
at android.animation.AnimatorInflater.loadObjectAnimator(AnimatorInflater.java:161)
at android.animation.AnimatorInflater.createAnimatorFromXml(AnimatorInflater.java:117)
at android.animation.AnimatorInflater.createAnimatorFromXml(AnimatorInflater.java:126)
at android.animation.AnimatorInflater.createAnimatorFromXml(AnimatorInflater.java:93)
at android.animation.AnimatorInflater.loadAnimator(AnimatorInflater.java:72)
at android.support.graphics.drawable.AnimatedVectorDrawableCompat.inflate(AnimatedVectorDrawableCompat.java:377)
at android.support.graphics.drawable.AnimatedVectorDrawableCompat.createFromXmlInner(AnimatedVectorDrawableCompat.java:162)
at android.support.graphics.drawable.AnimatedVectorDrawableCompat.create(AnimatedVectorDrawableCompat.java:142)
根据文章android-support-library-232动画向量(AnimatedVectorDrawableCompat)应该得到支持回到API级别11。
它看起来像读取时失败valueFrom属性来自tick_path_animation.xml。此属性类型“pathType”可能不受支持(但?)。任何想法如何解决这个问题?
尝试通过wnafee使用Vector-Compat https://github.com/wnafee/vector-compat,我测试了路径变形,效果很好 –
您的问题已在支持库25.4.0+:https:// developer中得到解决。 android.com/topic/libraries/support-library/revisions.html#25-4-0 – Frank
对于平台上的路径变形
Tarek360