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android: string format specify bold

Posted by: admin June 15, 2020 Leave a comment


I have a string defined in string.xml like

<string name="eventtitle">Title: %1$s </string>

which is formatted using string.format . How to define the string to get only the Titel: as Bold.

Thanks in advance for the help

How to&Answers:

You have to style your string in the TextView in which in is displayed. See this link


You can do it like,

textView.setText(Html.fromHtml("<b>Title</b>: Text"));

If you have text in dynamic way..

And to define formatings in Strings.xml you can do like,

<string name="text1">This text uses <b>bold</b> and <i>italics</i> 
by using inline tags such as <b> within the string file.</string>

see This Link


Now, it is reasonably supported by Android.

you can define the string in xml as <string name="text_to_show">Hey &lt;b>This is in bold&lt;/b>

Then in code, use this to convert to CharSequence and then use it for e.g in TextView

String text = getResources().getString(R.string.text-to_show);
CharSequence styledText = Html.fromHtml(text);


You can use HTML markup like "<b>BOLD</b> other text ...".
See this Google resource for more information.


Actually, many of the answers are obsolete. After researching by myself, what I’ve found out that the best answer is one by @Wahib. Here’s the improved version:

Define the string resource as a:

<string name="styled_text">Hey, &lt;b>this is bold&lt;/b> text</string>

Use the resource like this:

String text = getResources().getString(R.string.styled_text);
CharSequence styledText = HtmlCompat.fromHtml(text, HtmlCompat.FROM_HTML_MODE_LEGACY);

Here’s the result:

enter image description here


Typeface tfaerial=Typeface.createFromAsset(getAssets(),"fonts/aerial.ttf");
Typeface tfTradeGothicLight=Typeface.createFromAsset(getAssets(), "fonts/TradeGothic-Light.OTF");

String strt_title_desc=this.getResources().getString(R.string.eventtitle);

int upto=strt_title_desc.indexOf(":"); //of you can specify 5

 if (strt_title_desc!=null)
        aboutAuthTV.setLineSpacing(1.2f, 1.5f);
    SpannableString SS = new SpannableString(strt_title_desc);
    SS. setSpan ( new StyleSpan(tfTradeGothicLight.getStyle()), 0, upto,Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
    SS. setSpan ( new StyleSpan(tfaerial.getStyle()), upto, strt_dialog_desc.length(),Spanned.SPAN_EXCLUSIVE_INCLUSIVE);

// this for changing the font size, style and colors

String str="<font size =\"20\"><B>Bold</B> <br/> Then Normal Text<br/>
                         <i>Then Italic</i> </font>" +
                       "<br/> <font color=\"green\" >this is simple sentence </font>" +
                       "<br/><br/><br/><br/><a>this is simple sentence</a>";
      Spanned strHtml= Html.fromHtml(str);

       TextView tv = (TextView)findViewById(R.id.textView);


Now, it is reasonably supported by Android.

I have already given answer to this how to add styling within a string