How to Make Part of The Text Bold in Android at Runtime

How to make part of the text Bold in android at runtime?

Let's say you have a TextView called etx. You would then use the following code:

final SpannableStringBuilder sb = new SpannableStringBuilder("HELLOO");
      
final StyleSpan bss = new StyleSpan(android.graphics.Typeface.BOLD); // Span to make text bold
final StyleSpan iss = new StyleSpan(android.graphics.Typeface.ITALIC); //Span to make text italic
sb.setSpan(bss, 0, 4, Spannable.SPAN_INCLUSIVE_INCLUSIVE); // make first 4 characters Bold 
sb.setSpan(iss, 4, 6, Spannable.SPAN_INCLUSIVE_INCLUSIVE); // make last 2 characters Italic

etx.setText(sb);

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how to make a specific text on TextView BOLD

Just build your String in HTML and set it:

String sourceString = "<b>" + id + "</b> " + name; 
mytextview.setText(Html.fromHtml(sourceString));

How to set TextView textStyle such as bold, italic

textView.setTypeface(null, Typeface.BOLD_ITALIC);
textView.setTypeface(null, Typeface.BOLD);
textView.setTypeface(null, Typeface.ITALIC);
textView.setTypeface(null, Typeface.NORMAL);

To keep the previous typeface

textView.setTypeface(textView.getTypeface(), Typeface.BOLD_ITALIC)

How to bold the text which is inside ** in TextView like WhatsApp

You can use this

SpannableStringBuilder str = new SpannableStringBuilder("Text here with * inside *");
str.setSpan(new android.text.style.StyleSpan(android.graphics.Typeface.BOLD), INT_START, INT_END, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
TextView tv=new TextView(context);
tv.setText(str);

where INT_START and INT_END will be the position of the *

TextView Bold the second line

You should either use two textviews or you can use

Textview tvcheckIn = (TextView) findViewById(R.id.checkIn);
tvcheckIn.setText( Html.fromHtml("First Line<br><b>Second Line"));

Make certain part of text bold using DataBinding

As per @CommonsWare,

Tried by adding basic Html tag <string name="product_price">If you are selected, you will have to pay <![CDATA[<b>$%d</b>]]> for your pair.</string>

Layout File : Imported Html

 <?xml version="1.0" encoding="utf-8"?>
 <layout
   <data>
   <import type="android.text.Html"/>
   <data>
     <LinearLayout>
       <android.support.design.widget.CoordinatorLayout>
       <TextView
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginEnd="@dimen/spacing_xlarge"
          android:layout_marginStart="@dimen/spacing_xlarge"
          android:layout_marginBottom="@dimen/spacing_small"
          android:text="@{Html.fromHtml(@string/product_price(productPrice))}"
          android:textColor="@color/button_tertiary"
          android:visibility="@{productPrice > 0}"
          style="@style/Body.Small"
          />
       </android.support.design.widget.CoordinatorLayout>
     </LinearLayout>
 </layout>

How to set the font style to bold, italic and underlined in an Android TextView?

I don't know about underline, but for bold and italic there is "bolditalic". There is no mention of underline here: http://developer.android.com/reference/android/widget/TextView.html#attr_android:textStyle

Mind you that to use the mentioned bolditalic you need to, and I quote from that page

Must be one or more (separated by '|') of the following constant values.

so you'd use bold|italic

You could check this question for underline: Can I underline text in an android layout?

android: string format specify bold

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

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