Develop Reference

How to set Default language other than english in Android?

I have a project by my client that has built successfully in his system but as he sent to me I am unable to compile it because of unicode characters (Latin characters) in default strings.xml under res. I believe its the default localizations file but its forcing me to convert it into English but not parsing Latin Characters into it.
e.g.
<string name="old_questions">Questões e soluções dos anos anteriores</string>

Check that the XML is in UTF-8 and has
<?xml ... encoding="UTF-8"?>
or defaulted
<?xml ... ?>
I tried your text in my studio , well it is working fine. You could also update question with your error , that would help understand it better.
Another workaround for small texts would be to simply escape it.
<string name="Example">Example character \u0026</string>
go to this website : https://unicode-table.com/en/#control-character and this could help you .

Make sure your string file is in the default values folder.
You can check the android developers link for better understanding.
To help you better please post the exact error you get while compiling the code.

Apostrophe converting to question mark in textview

I am parsing some external XML into an object and displaying this inside a textview.
Apostrophe's/single quotes are being converted to these silly question mark symbols.
Nothing i've found is working - i've tried using replaceall and escaping it with \', it doesn't give me the desired result.
I've tried setting the textview using:
tv.setText(Html.fromHtml(news_item.getTitle()));
It doesn't seem to work, I can't find any other solutions to this one, your ideas appreciated.

Try this:
tv.setText(news_item.getTitle().replaceAll("\u2019", "'"));
For other Unicode characters, please see this link.

Found it!
The mark you are looking for is called RIGHT SINGLE QUOTATION MARK with a unicode code of U+2019. This particular mark should be replaced via:
String.replace("’", "’");
for proper display.
If that doesn't work, you should do a substitution from that mark to a apostrophe via:
String.replace("’", "'");
or directly:
String.replace("’", "'");
to make sure the display actually displays it.
Close up of the difference between right single quotation mark vs apostrophe: ’ vs '

The documented solution will work, but it is not the right way of fixing this, as the root cause of the problem is encoding. In your case, the source's (XML document) encoding is most likely UTF-8 or some other multi-byte encoding. Your parser or consumer of the data is most likely ISO-8859-1 or ASCII. These characters (right/left apostrophes) are not part of that character set. Therefore, the correct solution is to change the encoding of your parser/processor/consumer to UTF-8.
If this is not the case, then it is probably the opposite. You have a process that writes down characters in UTF-8, but the XML's encoding is not compatible (i.e. ISO-8859-1).
Remember this: ALL characters in ISO-8859-1 are mapped in UTF-8, but not the other way around. So going from ISO-8859-1 to UTF-8 is not a problem. The problem is when you have to make the round trip to ISO-8859-1 to UTF-8. When converting UTF-8 characters, those characters NOT in the ISO character set, will show up funny on your display; either as question marks or "’

How can I put utf-16 characters in Android string resource?

I want to use Emojis in my app's strings. All strings reside, of course, in strings.xml
The problem is that not all Emojis are 16 bit friendly. Some Emojis can be represented as "normal" 16 bit hex: '\u26FF' but some are 32 bit hexes (UTF-16), usually represented as: '\x1F600'. I have no problem dealing with those inside the app, in code. But the strings.xml resource file is UTF8 encoded, and does not deal properly with non 16 bit escape chars.
I tried using '\x1F600' - because I saw that '\u26FF' works just fine. But it seems not to devour the 'x' escape char. Nor did it like the regexp notation '\x{1F600}'
So I ended up using a string placeholder '%1$s' and filling in the Emoji in code like this:
// greeting_3 is defined as: "hello there %1$s!"
String s = context.getString(R.string.greeting_3, "😜");
// OR:
String s = context.getString(R.string.greeting_3, new String(Character.toChars(0x1F61C)));
This is not a very elegant solution... is there a proper way to put 32 bit UTF-8 chars in strings.xml ?

But the strings.xml resource file is UTF8
If it's UTF-8 encoded, you can put your emojis directly. But then you risk that your editor or another piece of software destroys them.
If you are putting them in XML, you can try using XML entities: 😀, I'm not sure how well Android supports them though.
You can also use surrogate pairs: convert the emoji to UTF-16 and use standard \u escape. You can for example check out this page, it even tells you how to create a string litaral in Java: http://www.fileformat.info/info/unicode/char/1F600/index.htm
😜 → U+1F600 → "\uD83D\uDE00"

The easiest way it just copying and pasting the emoji, it works from Android Studio 3.0 and newer

Add the resource like follows:
<string name="string_title">This is a emoji example <U+1F642></string>
In Android Studio 3.0 you can copy and paste an emoji:
And here how it looks:

Setting Danish Character Text

I am getting some strings from json. My string contains special characters like "æ" from Næstved an many more like "ø" from køkken. But When I set Text these strings to ant textview, I get my strings printed in unusual way.
Example: For køkken I get k&oslash ;kken.
I think I need to encode or decode my string somewhere but where I don,t know.
Please help.
Thanks in advance

The displayed version of your string represents an HTML encoded entity. You might want to verify that it is not coming in this way in your JSON data, but in any case, to decode it you can use the StringEscapeUtils.unescapeHtml4 method from Apache Commons Lang:
final String escaped = "køkken";
System.out.println(StringEscapeUtils.unescapeHtml4(escaped));
Output:
køkken

Did you check out the Latin Coding for your characters? I know the Ash character can be coded with æ and will show up æ in the browser.
Here is the a list of codes
Hope this helps!

How to read and write special characters, in xml, android

Hi I have created xml where i need to pass file name and sent to server. It is working fine. But when the file name contains special character the name looks different in xml. similarly in reading same problem occurred. eg if file name is ♥♣◘• then i cant send the exact in xml also i cant read as it is from xml. How to resolve this type of issue. Whether i need to set any parameters in xml?
Thanks
Sunil Kumar Sahoo

Seems you have en ENCODING problem... Try out a few like UTF16 or UTF32... I know there are some issues in Android 'bout encoding stuff, you never really know what you get except if you FORCE it !
Try then using stuffs like :
String(byte[] data, String charsetName)
Converts the byte array to a string using the named charset.
with charsetname such as "UTF-8" or "UTF-16".