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Password regex string in strings.xml file in android

I have declared a regex for password validation purposes in strings.xml file.
The criteria is
-should be atleast 8 characters
-should contain atleast one upper case letter
-should contain atleast one lower case letter
-should contain atleast one special character within these "##$%^+&="
So my whole regex looks like this now
^(?=.[0-9])(?=.[a-z])(?=.[A-Z])(?=.[##$%^+&=])(?=\S+$).{8,}$
But when I enter this, I get an error saying that & is
"Unescaped or non terminated character entity/reference"
So instead I used the escape sequence as & but the validation fails for &
I would b glad if anyone could help me out on this!!

Use * quantifers in the look-aheads. Right now, you check if 2nd character in the string meets your conditions. We need to test them all in the string.
^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[##$%^+&=])(?=\S+$).{8,}$
Here is a demo.
EDIT
Since the regex is located inside the XML code, it should be properly encoded. Or, use it inside CDATA block.

Are you missing a parameter in your curly braces? The last bit "{8,}" seems off.

how to add smilies/emotions in my edittext for a notes app in android?

can any one know about how to add/insert emotions/smiles to text(which ever i typed in my edit text for my notes). i have little confusion about if i want to add these smiles of type .png in to edit text type of string, is it possible? and also i have to save these input into sqlite database. normally i know to store string data taken from edit text.
but along with that text i want to also add smiles symbols where ever my cursor placed and to be store in sqlite data base. and get it back to read.
so guys any ideas, most welcome!

Try to use java (i.e. android) spannable method to implement smiley (i.e.) images for that. You will surely get it, search in google for "how to add images/smiley with java spannable method in android?" you will get good idea.

Reading your question the first thing I can think of is Mapping each image to a sequence of letters, for example :) is smiley.png etc. Now your database also has these smaller representation However while reading from the database you can convert those special character sequences to appropriate image.
For simplicity in seraching those Strings You can wrap them in some less used characters i.e. [ or { or <.

is it possible to store a character as underlined within a sqlite database?

I am trying to create a database for an android app including, in part, non-English words which require underlines and accents for proper spelling. I set my encoding for this package to utf-8, which allowed the accented characters to store and display properly. However, I cannot seem to get a single character underlined. It displays an empty box for an unrecognized character.
An example of my database helper to create the sqlite is as follows:
cv.put(ENGLISH, "to be alive");
cv.put(NATIVE, "okch_á_a or okchaha");
cv.put(PART_OF_SPEECH, "verb");
cv.put(AUDIO, "alive");
cv.put(VIDEO, "none");
cv.put(IMAGE_DEFAULT, "none");
cv.put(IMAGE_OPTIONAL, "none");
cv.put(IMAGE_TO_USE, "none");
db.insert("words", ENGLISH, cv);
That
_ a _
is the best I can come up with so far, but the a should actually be an underlined character.
I tried html tags like u and /u:
<u>a</u>
since that works with string arrays, but it displays as:
<u>a</u>
(the html is never interpreted).
I tried using:
"\u0332"
as explained at http://www.fileformat.info/info/unicode/char/332/index.htm , but that, too, is never interpreted, so it displays as:
a\u0332
I also tried:
& # 818 ;
and:
& # x332 ;
in a similar manner, with similar lack of results.
Any ideas?

You can store your string in Html format and call .setText(Html.fromHtml(somestring)) from the textview were you want to display it.

Android: converting between Strings, SpannedStrings and Spannablestrings

I have a string resource called "foo". It may be a simple string... or it may contain HTML. This may change over time: I should be able to box it up as at least a SpannableString immediately upon reading whether it's HTML or not (but how??)
I want to get that raw CharSequence and first be able to display it as-is (the exact characters, not Android's "interpretation" of it). Right now I can't do that... toString() decides to rip out the parts it doesn't think I want to see.
I'd then like to be able to create a SpannableString from this and other Strings or SpannableStrings via concatenation using some method (none of the normal ones work). I'd like to then use that SpannableString to display the HTML-formatted text in a TextView.
This shouldn't be difficult, but clearly I'm not doing it right (there's very little info out there about this that I've found so far). Surely there is a way to accurately interconvert between between Strings, SpannedStrings and even Spannablestrings, without losing the markups along the way?
Note that I've already played with the somewhat broken Linkify, but I want better control over the process (no dangling unformatted "/"s, proper hrefs, etc.) I can get this all to work IF I stay in HTML at all steps, though I can't concatenate anything.
Edit 1: I've learned I can use the following to always ensure I get my raw string (instead of whatever Android decides it thinks the CharSequence really is). Nice... now, how to coax this into a SpannableString?
<string name="foo"><![CDATA[
<b>Some bold</b>
]]>
</string>
Edit 2: Not sure why this didn't work earlier, but... if foo1 and foo2 are strings marked up as above (as CDATA), then one can apparently do this:
String foo1 = (String)getResources().getText(R.string.foo1);
String foo2 = (String)getResources().getText(R.string.foo2);
SpannedString bar = new SpannedString(Html.fromHtml(foo1+foo2));
Curious: is there a more straightforward solution than this? Is this CDATA business actually necessary? It seems convoluted (but not as convoluted as never quite knowing what the resource type will be... String, Spannable, etc.)

I had the same problem. There are two solutions according to Google API Guides.
First is to escape < mark with < in the string resource. Unfortunately, String conversion removes the tag in the background.
Second is to use Format Strings instead of XML/HTML tags. It seems simpler, faster, and evades hidden conversion problems. getString(resource, ...) works like a printf(string, ...) here.
Both work and require some code to replace given part of the string anyway (handle tags or format strings). Enjoy! =)

It appears there isn't a more straightforward way to accomplish this.

How to edit multiline strings in Android strings.xml file?

I have several cases where my string in strings.xml is quite long and has multiple lines done with \n.
Editing however is quite annoying since it is a long line in Eclipse.
Is there a better way to edit this so it looks like it will be presented later in the textview, ie the line breaks as line breaks and the text in multiline edit mode?

Two possibilities:
1. Use the Source, Luke
XML allows literal newline characters in strings:
<string name="breakfast">eggs
and
spam</string>
You just have to edit the XML code instead of using the nifty Eclipse GUI
2. Use actual text files
Everything inside the assets directory is available as a input stream from the application code.
You can access those file input streams of assets with AssetManager.open(), a AssetManager instance with Resources.getAssets(), and… you know what, here’s the Java-typical enormously verbose code for such a simple task:
View view;
//before calling the following, get your main
//View from somewhere and assign it to "view"
String getAsset(String fileName) throws IOException {
AssetManager am = view.getContext().getResources().getAssets();
InputStream is = am.open(fileName, AssetManager.ACCESS_BUFFER);
return new Scanner(is).useDelimiter("\\Z").next();
}
the use of Scanner is obviously a shortcut m(

Sure, you could put newlines into the XML, but that won't give you line breaks. In strings.xml, as in all XML files, Newlines in string content are converted to spaces. Therefore, the declaration
<string name="breakfast">eggs
and
spam</string>
will be rendered as
eggs and spam
in a TextView. Fortunately, there's a simple way to have newlines in the source and in the output - use \n for your intended output newlines, and escape the real newlines in the source. The above declaration becomes
<string name="breakfast">eggs\n
and\n
spam</string>
which is rendered as
eggs
and
spam

For anyone looking for a working solution that allows the XML String content to have multiple lines for maintainability and render those multiple lines in TextView outputs, simply put a \n at the beginning of the new line... not at the end of the previous line. As already mentioned, one or more new lines in the XML resource content is converted to one single empty space. Leading, trailing and multiple empty spaces are ignored. The idea is to put that empty space at the end of the previous line and put the \n at the beginning of the next line of content. Here is an XML String example:
<string name="myString">
This is a sentence on line one.
\nThis is a sentence on line two.
\nThis is a partial sentence on line three of the XML
that will be continued on line four of the XML but will be rendered completely on line three of the TextView.
\n\nThis is a sentence on line five that skips an extra line.
</string>
This is rendered in the Text View as:
This is a sentence on line one.
This is a sentence on line two.
This is a partial sentence on line three of the XML that will be continued on line four of the XML but will be rendered completely on line three of the TextView.
This is a sentence on line five that skips an extra line.

You may easily use "" and write any word even from other languages with out error:
<string name="Hello">"Hello
world!
سلام
دنیا!"
</string>