Java Android 中的字符串下标和上标
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Subscript and Superscript a String in Android
提问by Mohit Deshpande
How can you print a string with a subscript or superscript? Can you do this without an external library? I want this to display in a TextViewin Android.
如何打印带有下标或上标的字符串？你能在没有外部库的情况下做到这一点吗？我希望它显示TextView在 Android 中。
采纳答案by Konstantin Burov
((TextView)findViewById(R.id.text)).setText(Html.fromHtml("X<sup>2</sup>"));
or
或者
回答by Mohit Deshpande
回答by peter
Example:
例子：
equation = (TextView) findViewById(R.id.textView1);
SpannableStringBuilder cs = new SpannableStringBuilder("X3 + X2");
cs.setSpan(new SuperscriptSpan(), 1, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
cs.setSpan(new RelativeSizeSpan(0.75f), 1, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
cs.setSpan(new SuperscriptSpan(), 6, 7, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
cs.setSpan(new RelativeSizeSpan(0.75f), 6, 7, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
equation.setText(cs);
回答by Ariel Capozzoli
To all people asking, if you want to make it smaller besides of making super or subscript, you just need to add tag as well. EX:
对于所有询问的人，如果除了制作上标或下标之外，还想让它变小，您只需要添加标签即可。前任：
"X <sup><small> 2 </small></sup>"
回答by César Cobo
If you want to set the superscript from string.xml file try this:
如果你想从 string.xml 文件设置上标，试试这个：
string resource:
字符串资源：
<string name="test_string">X<sup>3</sup></string>
if you want the superscript to be smaller:
如果您希望上标更小：
<string name="test_string">X<sup><small>3</small></sup></string>
Code:
代码：
textView.setText(Html.fromHtml("Anything you want to put here"+getString(R.string.test_string)));
回答by m.v.n.kalyani
((TextView)findViewById(R.id.text)).setText(Html.fromHtml("X<sup><small>2</small></sup>"));
(or) From String Resource File:
（或）从字符串资源文件：
<string name="test_string">
<![CDATA[ X<sup><small>2</small></sup> ]]>
</string>
回答by CoDe
It bit late but following just work fine, use superscript as special character, I used spacial char here.
有点晚了，但以下工作正常，使用上标作为特殊字符，我在这里使用了空格字符。
<string name="str">H?</string>
回答by Detilium
In the strings.xmlfiles, you can just use the HTML <sup>3</sup>tag. Work perfectly for me
在strings.xml文件中，您可以只使用 HTML<sup>3</sup>标记。非常适合我
EXAMPLE
例子
<string name="turnoverRate">Turnover rate m<sup>3</sup>/m<sup>2</sup>/hour:</string>
回答by Aditya Naique
They are called Unicode characters, and Android TextViewsupports them. Copy the super/sub-script you want from this Wiki: https://en.wikipedia.org/wiki/List_of_Unicode_characters#Superscripts_and_Subscripts
它们被称为 Unicode 字符，AndroidTextView支持它们。从这个 Wiki 复制你想要的超级/子脚本：https: //en.wikipedia.org/wiki/List_of_Unicode_characters#Superscripts_and_Subscripts
回答by ンドリュー ライアンア
yourTextView.setText(Html.fromHtml("X<sup>2</sup>"));
This will be the result in you yourTextView =
X2
× 2
