字符串资源中的特殊字符不会显示在警报对话框中(Android)

写为:

<string name="some_string">A string which has stuff \"In Quotation\" indeed.</string>

例子 关于我在评论中所说的话。

String message = getString(R.string.app_name);
AlertDialog.Builder builder = new AlertDialog.Builder(this).setMessage(message);
builder.show();

XML格式

<string name="app_name">\&quot;Mes Dépenses\&quot;</string>

测试时间

java-7 安卓api 19

[更新]

为什么是对话而不是其他我认为是因为合并在安卓系统。

看这个 CharSequence

A CharSequence is a readable sequence of char values. This interface provides uniform, read-only access to many different kinds of char sequences. A char value represents a character in the Basic Multilingual Plane (BMP) or a surrogate. Refer to Unicode Character Representation for details.

XML allows the use of any of the Unicode-defined encodings, and any other encodings whose characters also appear in Unicode. XML also provides a mechanism whereby an XML processor can reliably, without any prior knowledge, determine which encoding is being used.[12] Encodings other than UTF-8 and UTF-16 are not necessarily recognized by every XML parser.

AlertDialog setMessage

CharSequence是接口,所以它们没有 toString() 他们必须使用 charAt() 或 chars() 取决于api

Android中的char使用ASCII检查这个 Integer.valueOf(char) returning ASCII value

https://en.wikipedia.org/wiki/Unicode_symbols

换句话说,他们必须跳过 " 因为他们认为是字符串concat。这就是为什么我认为我们需要 \

如果你想拯救其他人:

val message = resources.getString(R.string.some_string)
message = message .replace("\"", """)
val builder = AlertDialog.Builder(context)
            .setMessage(message)
builder.show()

如果要用xml编辑:

<string name="some_string">A string which has stuff \"In Quotation\" indeed.</string>

您可以从Html类中使用fromHtml方法,如下所示。对于超过24的API,您可以使用带标志的方法,如下所述。

我已经用我的代码进行了测试,运行良好。希望有帮助。

var dialogHeader = Html.fromHtml("“ " + "Awesome title text" + " ”", Html.FROM_HTML_MODE_COMPACT).toString()

AlertDialog.Builder(this)
        .setMessage(dialogHeader)
        .show()

注意:您可以使用 Html.fromHtml(string) 以及代替 Html.fromHtml(string, intFlag) 我的应用程序API>=24时使用的。