如何检查缺少默认值的 android 资源？
How to check for android resources that are missing default values?
我很好奇如何找到缺少默认值的 android 资源。例如，可以在dimens-sw600dp.xml中定义corner_radius，而不在dimens.xml中定义。这会导致最小宽度小于 600 dp 的任何设备运行时崩溃。
在上面的示例中，缺少默认值并不明显。 aapt 运行后，您可以在代码和 xml 中引用维度，尽管缺少默认值。 （通过 R.dimen.corner_radius 和 @dimen/corner_radius）。直到运行时才能发现错误。
Android Studio 包括对缺失翻译的 lint 检查，但似乎不检查其他资源类型。有没有一种简单的方法可以在构建时检查其他缺失的资源（维度、布局等）？
实际上，我找到了一种方法，虽然不是最好的方法，但很管用。
删除所有其他 dimens.xml 文件，主要文件除外（即 v19, w820dp 等）。
之后只需构建您的项目 - 您将获得一个错误列表，其中现在缺少维度。
当您发现问题时，恢复删除即可。
您现在可以依赖 MissingDefaultResource lint 规则（发现 here）：
If a resource is only defined in folders with qualifiers like -land or -en,
and there is no default declaration in the base folder (layout or values etc),
then the app will crash if that resource is accessed on a device where the
device is in a configuration missing the given qualifier.
As a special case, drawables do not have to be specified in the base folder;
if there is a match in a density folder (such as drawable-mdpi) that image
will be used and scaled. Note however that if you only specify a drawable in
a folder like drawable-en-hdpi, the app will crash in non-English locales.
There may be scenarios where you have a resource, such as a -fr drawable,
which is only referenced from some other resource with the same qualifiers
(such as a -fr style), which itself has safe fallbacks. However, this still
makes it possible for somebody to accidentally reference the drawable and
crash, so it is safer to create a default dummy fallback in the base folder.
Alternatively, you can suppress the issue by adding
tools:ignore="MissingDefaultResource" on the element.
(This scenario frequently happens with string translations, where you might
delete code and the corresponding resources, but forget to delete a
translation. There is a dedicated issue id for that scenario, with the id
ExtraTranslation.)
使缓存无效并重新启动应该可以解决问题
检查清除文件系统缓存
我很好奇如何找到缺少默认值的 android 资源。例如，可以在dimens-sw600dp.xml中定义corner_radius，而不在dimens.xml中定义。这会导致最小宽度小于 600 dp 的任何设备运行时崩溃。
在上面的示例中，缺少默认值并不明显。 aapt 运行后，您可以在代码和 xml 中引用维度，尽管缺少默认值。 （通过 R.dimen.corner_radius 和 @dimen/corner_radius）。直到运行时才能发现错误。
Android Studio 包括对缺失翻译的 lint 检查，但似乎不检查其他资源类型。有没有一种简单的方法可以在构建时检查其他缺失的资源（维度、布局等）？
实际上，我找到了一种方法，虽然不是最好的方法，但很管用。
删除所有其他 dimens.xml 文件，主要文件除外（即 v19, w820dp 等）。
之后只需构建您的项目 - 您将获得一个错误列表，其中现在缺少维度。
当您发现问题时，恢复删除即可。
您现在可以依赖 MissingDefaultResource lint 规则（发现 here）：
If a resource is only defined in folders with qualifiers like -land or -en, and there is no default declaration in the base folder (layout or values etc), then the app will crash if that resource is accessed on a device where the device is in a configuration missing the given qualifier.
As a special case, drawables do not have to be specified in the base folder; if there is a match in a density folder (such as drawable-mdpi) that image will be used and scaled. Note however that if you only specify a drawable in a folder like drawable-en-hdpi, the app will crash in non-English locales.
There may be scenarios where you have a resource, such as a -fr drawable, which is only referenced from some other resource with the same qualifiers (such as a -fr style), which itself has safe fallbacks. However, this still makes it possible for somebody to accidentally reference the drawable and crash, so it is safer to create a default dummy fallback in the base folder. Alternatively, you can suppress the issue by adding tools:ignore="MissingDefaultResource" on the element.
(This scenario frequently happens with string translations, where you might delete code and the corresponding resources, but forget to delete a translation. There is a dedicated issue id for that scenario, with the id ExtraTranslation.)
使缓存无效并重新启动应该可以解决问题 检查清除文件系统缓存