Android无效的颜色状态列表标签渐变

Question

我有一个应用程序，每天下载量超过5000次，每天活跃着500多个用户，无处不在，我开始在Crashlytics上遇到一个奇怪的错误：

Caused by android.content.res.Resources$NotFoundException: File res/drawable-anydpi-v24/ic_tickets.xml from drawable resource ID #0x7f0700b3
       at android.content.res.Resources.loadDrawableForCookie(Resources.java:2748)
       at android.content.res.Resources.loadDrawable(Resources.java:2643)
       at android.content.res.TypedArray.getDrawable(TypedArray.java:870)
       at android.widget.TextView.<init>(TextView.java:921)
       at android.widget.TextView.<init>(TextView.java:703)
       at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:76)
       at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:72)
       at java.lang.reflect.Constructor.newInstance(Constructor.java)


Caused by android.content.res.Resources$NotFoundException: File res/drawable-anydpi-v24/$ic_tickets__0.xml from color state list resource ID #0x7f070017
       at android.content.res.Resources.loadColorStateListForCookie(Resources.java:2858)
       at android.content.res.Resources.loadColorStateList(Resources.java:2807)
       at android.content.res.TypedArray.getColor(TypedArray.java:439)
       at android.graphics.drawable.VectorDrawable$VFullPath.updateStateFromTypedArray(VectorDrawable.java:1605)
       at android.graphics.drawable.VectorDrawable$VFullPath.inflate(VectorDrawable.java:1584)
       at android.graphics.drawable.VectorDrawable.inflateInternal(VectorDrawable.java:666)
       at android.graphics.drawable.VectorDrawable.inflate(VectorDrawable.java:571)
       at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1215)
       at android.graphics.drawable.Drawable.createFromXml(Drawable.java:1124)


Caused by org.xmlpull.v1.XmlPullParserException: Binary XML file line #6: invalid color state list tag gradient
       at android.content.res.ColorStateList.createFromXmlInner(ColorStateList.java:217)
       at android.content.res.ColorStateList.createFromXml(ColorStateList.java:201)
       at android.content.res.Resources.loadColorStateListForCookie(Resources.java:2854)
       at android.content.res.Resources.loadColorStateList(Resources.java:2807)
       at android.content.res.TypedArray.getColor(TypedArray.java:439)
       at android.graphics.drawable.VectorDrawable$VFullPath.updateStateFromTypedArray(VectorDrawable.java:1605)

堆栈跟踪比这更长，在Crashlytics上超过500行，我在这里粘贴了我认为对理解问题可能有用的内容。

如果我做对了，它会抱怨我的资源之一丢失或损坏。会是什么呢？

但是该资源在apk中是完整的：

<vector android:height="24dp" android:viewportHeight="512"
    android:viewportWidth="512" android:width="24dp"
    xmlns:aapt="http://schemas.android.com/aapt" xmlns:android="http://schemas.android.com/apk/res/android">
    <path android:pathData="M381.845,292.27c0,11.032 -8.943,19.975 -19.975,19.975s-19.975,-8.943 -19.975,-19.975c0,-11.032 8.943,-19.975 19.975,-19.975S381.845,281.238 381.845,292.27zM361.869,332.221c-11.032,0 -19.975,8.943 -19.975,19.975s8.943,19.975 19.975,19.975s19.975,-8.943 19.975,-19.975S372.902,332.221 361.869,332.221zM361.869,392.147c-11.032,0 -19.975,8.943 -19.975,19.975s8.943,19.975 19.975,19.975s19.975,-8.943 19.975,-19.975S372.902,392.147 361.869,392.147zM307.418,136.36c-9.983,4.696 -14.268,16.596 -9.572,26.578c4.696,9.983 16.596,14.268 26.578,9.572c9.983,-4.696 14.268,-16.596 9.572,-26.578C329.3,135.95 317.401,131.664 307.418,136.36zM451.759,352.197c0,22.029 17.922,39.951 39.951,39.951h19.975V512H0.314V392.147H20.29c22.029,0 39.951,-17.922 39.951,-39.951s-17.922,-39.951 -39.951,-39.951H0.314V192.393h0.509l-0.042,-0.089L408.489,0l50.866,108.128l-17.013,8.861c-13.29,6.921 -21.544,20.506 -21.544,35.453c0,22.029 17.922,39.951 39.951,39.951h50.937v119.853H491.71C469.681,312.246 451.759,330.168 451.759,352.197zM94.244,192.393h297.352c-6.822,-11.763 -10.75,-25.403 -10.75,-39.951c0,-23.307 10.023,-44.953 27.021,-59.913l-18.505,-39.335l-81.134,38.269c4.355,9.886 0.068,21.491 -9.762,26.115c-9.818,4.618 -21.473,0.536 -26.323,-9.095L94.244,192.393zM411.808,352.197c0,-37.163 25.503,-68.482 59.926,-77.374v-42.479h-89.889c0,11.032 -8.943,19.975 -19.975,19.975s-19.975,-8.943 -19.975,-19.975H40.265v42.479c34.424,8.891 59.926,40.211 59.926,77.374s-25.503,68.482 -59.926,77.374v42.479h301.629c0,-11.032 8.943,-19.975 19.975,-19.975s19.975,8.943 19.975,19.975h89.889V429.57C437.31,420.678 411.808,389.36 411.808,352.197z">
        <aapt:attr name="android:fillColor">
            <gradient android:endX="256.00745" android:endY="511.99982"
                android:startX="256.00745"
                android:startY="-0.0150070675" android:type="linear">
                <item android:color="#FF2AF598" android:offset="0"/>
                <item android:color="#FF009EFD" android:offset="1"/>
            </gradient>
        </aapt:attr>
    </path>
</vector>

drawable是应用程序中按钮的非常小而简单的图标，我从一个打开的图标库中下载了它，并在所有测试中都可以正常运行。

第二个奇怪的事情是，我今天有超过500个活跃用户，只有4个使用相同智能手机的用户才发生这种情况：

Device
Brand: LGE
Model: LG K10 LTE
Orientation: Portrait
RAM free: 170.92 MB
Disk free: 574.64 MB
Operating System
Version: 6.0
Orientation: Portrait
Rooted: No
Crash

关于此智能手机型号有任何已知问题吗？我该怎么做才能为受影响的用户解决此问题？

Answer 1

这是因为您使用了API级别之前不支持的一些属性24。

例如。startX，endX，startY，endY和offset。

Android棉花糖6.0是API级别23...

这invalid color state list tag gradient是从未来offset：

<item android:color="#FF2AF598" android:offset="0"/>
<item android:color="#FF009EFD" android:offset="1"/>

这个问题很可能不是LG特定的，而是Marshmallow特定的。

Answer 2

使用app:srcCompat，而不是src对ImageView

在您的应用程序中build.gradle编写以下代码：

android.defaultConfig.vectorDrawables.useSupportLibrary = true

defaultConfig {
    ...
    vectorDrawables.useSupportLibrary = true
    ...
}

现在你看到它起作用了。