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我刚刚继承了旧的代码,这或多或少做这样的事情:Android的预L,程序兼容性-V7:24.2.1和背景主题参考崩溃
(名称变更)
<attr name="my_reference" format="reference"/>
<style name="my_style_a" parent="@style/AppTheme">
<item name="my_reference">@drawable/drawable_a</item>
</style>
<style name="my_style_b" parent="@style/AppTheme">
<item name="my_reference">@drawable/drawable_b</item>
</style>
drawable_a和drawable_b:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape android:shape="rectangle">
<solid android:color="#ff000000" />
</shape>
</item>
</selector>
然后还有一块布局的:
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="?my_reference"
android:src="@drawable/image" />
诀窍是,风格是装载程序(它也必须改变用户点击一个按钮):
ContextThemeWrapper contextThemeWrapper = new ContextThemeWrapper(context, themeId);
LayoutInflater inflater = LayoutInflater.from(contextThemeWrapper);
View view = inflater.inflate(R.layout.activity_layout, parent, false);
充气去年视图抛出异常,在Android 4.4及以下(正常工作在5.0+)
Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x2/d=0x7f010010 a=-1}
at android.content.res.Resources.loadDrawable(Resources.java:1967)
at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
at android.view.View.<init>(View.java:3337)
at android.widget.ImageView.<init>(ImageView.java:114)
at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:57)
at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:53)
at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:106)
at android.support.v7.app.AppCompatDelegateImplV9.createView(AppCompatDelegateImplV9.java:1013)
at android.support.v7.app.AppCompatDelegateImplV9.onCreateView(AppCompatDelegateImplV9.java:1072)
at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:675)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
它只发生在我更新com.android.support:appcompat-v7库到24+之后(因为我需要新的API)。它适用于appcompat-v7,版本18(或类似的东西),但它不是一个选择留在旧库(我也不能放弃支持前L Android版本...)
有没有这个简单的修复(不包括重写应用程序的一半)?