manifestPlaceholders值不是字符串 [英] manifestPlaceholders value is not string

问题描述

在我的AndroidManifest.xml文件中，我具有以下应动态填充的元数据标记:

In my AndroidManifest.xml file I have the following meta-data tag which should be populated dynamically:

<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="${FACEBOOK_APP_ID}"/>

我的gradle文件如下:

My gradle file looks like this:

manifestPlaceholders = [
                GOOGLE_PROJECT_ID: "A888844613784",
                FACEBOOK_APP_ID: "888570042741264"
        ]

清单文件中的"FACEBOOK_APP_ID"构建并组装"后，如下所示:

After "Build & Assemble" the FACEBOOK_APP_ID in the manifest file looks like this:

 <meta-data
        android:name="com.facebook.sdk.ApplicationId"
        android:value="1481023616.000000" />

不幸的是，这不是字符串，而是浮点值.那是不正确的或我想要的.

Unfortunately this is not a String, but a float value. That's not correct or what I want.

我知道还有另一种方法可以在string.xml文件中定义FACEBOOK_APP_ID.但是，由于我有很多口味，因此，如果将所有与口味相关的参数放在build.gradle文件而不是strings.xml文件中，则将很容易维护.

I know there is another way to define the FACEBOOK_APP_ID in the string.xml file. But since I have lots of flavors it would be nice and easy to maintain if we put all flavors-related parameters in the build.gradle file instead of the strings.xml files.

有人知道如何避免字符串进行浮点转换吗?

Does anyone know how to avoid the string to float conversion?

推荐答案

您可以使用以下代码从build.gradle文件向字符串资源添加字符串值:

You can use the following code to add a String value to your string resources from a build.gradle file:

resValue 'string', 'FACEBOOK_APP_ID', 'facebook_application_id'

但是我不确定AndroidManifest.xml文件是否不支持风味特定的字符串(我记得您尝试时会收到警告，但我不确定).

But I'm not sure if the AndroidManifest.xml file does not support flavor specific strings (I can remember you will get a warning if you try, but I'm not sure).

您还可以尝试按照此答案中的建议，将空终止符添加到FACEBOOK_APP_ID manifestPlaceholder中.

You could also try to add a null-terminator to your FACEBOOK_APP_ID manifestPlaceholder as suggested in this answer:

FACEBOOK_APP_ID: "888570042741264\0"

直接从build.gradle文件使用时，代码null-terminator方法似乎不起作用，但是当在AndroidManifest.xml文件中使用null-terminator时，它确实起作用:

The code null-terminator method seems not to be working when used directly from the build.gradle file, it does however work when using the null-terminator inside the AndroidManifest.xml file:

<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="${FACEBOOK_APP_ID}\0"/>

这篇关于manifestPlaceholders值不是字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！