一直在寻找同样的方法，最后找到了下面这个非常简单的方法。最好的:它可以开箱即用。 1. 修改你的字符串资源:

<string name="welcome_messages">Hello, <xliff:g name="name">%s</xliff:g>! You have 
<xliff:g name="count">%d</xliff:g> new messages.</string>

2. 使用字符串替换:

c.getString (R.string.welcome_messages、名称、数);

其中c是上下文，名称是一个字符串变量和计数你的int变量

你需要包括

<resources xmlns:xliff="http://schemas.android.com/apk/res-auto">

在res/strings.xml中。 对我有用。：）

如果你想写百分比(%)，复制它:

<string name="percent">%1$d%%</string>

label.text = getString(R.string.percent, 75) // Output: 75%.

如果你只写%1$d%，你会得到一个错误:格式字符串'percent'不是一个有效的格式字符串，所以它不应该被传递给string . Format。

或者使用格式化=false"代替。

是的!你可以不写任何Java/Kotlin代码，只使用XML，使用我创建的这个小库，它在构建时这样做，所以你的应用程序不会受到它的影响:https://github.com/LikeTheSalad/android-stem

使用

你的字符串:

<resources>
    <string name="app_name">My App Name</string>
    <string name="welcome_message">Welcome to ${app_name}</string>
</resources>

构建后生成的字符串:

<!-- Auto generated during compilation -->
<resources>
    <string name="welcome_message">Welcome to My App Name</string>
</resources>

在Kotlin中，你只需要像这样设置你的字符串值:

<string name="song_number_and_title">"%1$d ~ %2$s"</string>

在你的布局上创建一个文本视图:

<TextView android:text="@string/song_number_and_title"/>

如果你使用Anko，那么在你的代码中这样做:

val song = database.use { // get your song from the database }
song_number_and_title.setText(resources.getString(R.string.song_number_and_title, song.number, song.title))  

您可能需要从应用程序上下文中获取资源。

补充回答

当我第一次在接受的答案中看到%1$s和%2$d时，它毫无意义。这里有更多的解释。

它们被称为格式说明符。在xml字符串中，它们的形式是

%[parameter_index$][format_type] 

%: The percent sign marks the beginning of the format specifier. parameter index: This is a number followed by a dollar sign. If you had three parameters that you wanted to insert into the string, then they would be called 1$, 2$, and 3$. The order you place them in the resource string doesn't matter, only the order that you supply the parameters. format type: There are a lot of ways that you can format things (see the documentation). Here are some common ones: s string d decimal integer f floating point number

例子

我们将创建以下格式化字符串，其中灰色部分以编程方式插入。

我妹妹玛丽12岁了。

string.xml

<string name="my_xml_string">My sister %1$s is %2$d years old.</string>

MyActivity.java

String myString = "Mary";
int myInt = 12;
String formatted = getString(R.string.my_xml_string, myString, myInt);

笔记

I could use getString because I was in an Activity. You can use context.getResources().getString(...) if it is not available. String.format() will also format a String. The 1$ and 2$ terms don't need to be used in that order. That is, 2$ can come before 1$. This is useful when internationalizing an app for languages that use a different word order. You can use a format specifier like %1$s multiple times in the xml if you want to repeat it. Use %% to get the actual % character. For more details read the following helpful tutorial: Android SDK Quick Tip: Formatting Resource Strings

你可以使用MessageFormat:

<string name="customer_address">Wellcome: {0} {1}</string>

在Java代码中:

String text = MessageFormat(R.string.customer_address).format("Name","Family");

火力等级1:

https://developer.android.com/reference/java/text/MessageFormat.html