定義插在XML

Question

<?xml version="1.0" encoding="utf-8"?> 
<animated-vector xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:aapt="http://schemas.android.com/aapt"> 
    <aapt:attr name="android:drawable"> 
     <vector android:width="140dp" android:height="140dp" 
      android:viewportWidth="24.0" android:viewportHeight="24.0"> 
      <group android:name="ringer" android:pivotX="12" android:pivotY="10.5"> 
       <path 
        android:fillColor="#d3d3d3" 
        android:pathData="M7.58,4.08L6.15,2.65C3.75,4.48 2.17,7.3 2.03,10.5h2c0.15,-2.65 1.51,-4.97 3.55,-6.42zM19.97,10.5h2c-0.15,-3.2 -1.73,-6.02 -4.12,-7.85l-1.42,1.43c2.02,1.45 3.39,3.77 3.54,6.42z" /> 
      </group> 
      <path 
       android:fillColor="#d3d3d3" 
       android:pathData="M18,11c0,-3.07 -1.64,-5.64 -4.5,-6.32L13.5,4c0,-0.83 -0.67,-1.5 -1.5,-1.5s-1.5,0.67 -1.5,1.5v0.68C7.63,5.36 6,7.92 6,11v5l-2,2v1h16v-1l-2,-2v-5zM12,22c0.14,0 0.27,-0.01 0.4,-0.04 0.65,-0.14 1.18,-0.58 1.44,-1.18 0.1,-0.24 0.15,-0.5 0.15,-0.78h-4c0.01,1.1 0.9,2 2.01,2z" /> 
     </vector> 
    </aapt:attr> 
    <target android:name="ringer"> 
     <aapt:attr name="android:animation"> 
      <set android:ordering="sequentially" 
       android:interpolator="@android:accelerate_interpolator" 
       > 
      <objectAnimator 
       android:duration="300" 
       android:startOffset="3000" 
       android:propertyName="rotation" 
       android:valueFrom="30" 
       android:valueTo="-30" 
       android:repeatCount="infinite" 
       android:repeatMode="reverse" /> 
      </set> 
     </aapt:attr> 

    </target> 
</animated-vector> 

當我嘗試設置的android：插值，我得到一個錯誤：

Error:(20, 39) No resource type specified (at 'interpolator' with value '@android:accelerate_interpolator').

我如何解決這個而不產生額外的XML資源文件？

Answer 1

使用

@android:anim/accelerate_interpolator 

，而不是

@android:accelerate_interpolator