使用字符串资源查看Android绑定双值

Question

尝试将双值绑定到使用字符串资源查看。

尝试1:

layout.xml

android:text="@{@string/user_popularity(Double.toString(user.popularity))}"

string.xml

<string name="user_popularity">Popularity: %s</string>

尝试2:

layout.xml

android:text="@{String.format(@string/user_popularity, user.popularity)}"

string.xml

<string name="user_popularity">Popularity: %.1f</string>

错误：

Error:(167, 107) error: double cannot be dereferenced

以下是一些类似的问题

1. How do I format a double using Android view data bindings?
2. How do I use databinding to combine a string from resources with a dynamic variable in XML?

Answer 1

其实很简单，我的错我做错了。这是解决办法。

<string name="user_popularity">Popularity: %.1f</string>
android:text="@{@string/user_popularity(user.popularity)}"