Different font size of strings in the same TextView

Question

I have a textView inside with a number  variable  and a string  how can I give the number one size larger than the string  the code   TextView size    TextView convertView findViewById R id privarea list size   if  ls numProducts    null        size setText ls numProducts         mContext getString R string products        I want ls numproducts has a size different from the rest of the text  How to do

User · Answer

I have written my own function which takes 2 strings and 1 int (text size)

The full text and the part of the text you want to change the size of it.

It returns a SpannableStringBuilder which you can use it in text view.

  public static SpannableStringBuilder setSectionOfTextSize(String text, String textToChangeSize, int size){

        SpannableStringBuilder builder=new SpannableStringBuilder();

        if(textToChangeSize.length() > 0 && !textToChangeSize.trim().equals("")){

            //for counting start/end indexes
            String testText = text.toLowerCase(Locale.US);
            String testTextToBold = textToChangeSize.toLowerCase(Locale.US);
            int startingIndex = testText.indexOf(testTextToBold);
            int endingIndex = startingIndex + testTextToBold.length();
            //for counting start/end indexes

            if(startingIndex < 0 || endingIndex <0){
                return builder.append(text);
            }
            else if(startingIndex >= 0 && endingIndex >=0){

                builder.append(text);
                builder.setSpan(new AbsoluteSizeSpan(size, true), startingIndex, endingIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
        }else{
            return builder.append(text);
        }

        return builder;
    }

User · Answer

Use a Spannable String   String s   Hello Everyone    SpannableString ss1   new SpannableString s    ss1 setSpan new RelativeSizeSpan 2f   0 5  0      set size  ss1 setSpan new ForegroundColorSpan Color RED   0  5  0     set color  TextView tv   TextView  findViewById R id textview    tv setText ss1      Snap shot    You can split string using space and add span to the string you require    String s   Hello Everyone      String   each   s split         Now apply span to the string and add the same to textview

User · Answer

private SpannableStringBuilder SpannableStringBuilder final String text  final char afterChar  final float reduceBy            RelativeSizeSpan smallSizeText   new RelativeSizeSpan reduceBy           SpannableStringBuilder ssBuilder   new SpannableStringBuilder text           ssBuilder setSpan                  smallSizeText                  text indexOf afterChar                   text length                    Spanned SPAN EXCLUSIVE EXCLUSIVE                     return ssBuilder        ------------------------ TextView textView  view findViewById R id textview   String s   123456 24   textView setText SpannableStringBuilder s       0 7f      ---------------- Result ---------------  Result     12345 24

User · Answer

Try spannableStringbuilder  Using this we can create string with multiple font sizes

User · Answer

In case you want to avoid too much confusion for your translators  I ve come up with a way to have just a placeholder in the strings  which will be handled in code   So  supposed you have this in the strings        lt string name  test  gt           lt   CDATA          We found  1 s items   gt       lt  string gt    And you want the placeholder text to have a different size and color  you can use this           val textToPutAsPlaceHolder    123          val formattedStr   getString R string test    textToPutAsPlaceHolder lt bc  gt            val placeHolderTextSize   resources getDimensionPixelSize R dimen some text size          val placeHolderTextColor   ContextCompat getColor this  R color design default color primary dark          val textToShow   HtmlCompat fromHtml formattedStr  HtmlCompat FROM HTML MODE LEGACY  null  object   Html TagHandler               var start   0             override fun handleTag opening  Boolean  tag  String  output  Editable  xmlReader  XMLReader                    when  tag                         bc  - gt  if   opening  start   output length - textToPutAsPlaceHolder length                      html  - gt  if   opening                            output setSpan AbsoluteSizeSpan placeHolderTextSize   start  start   textToPutAsPlaceHolder length  0                          output setSpan ForegroundColorSpan placeHolderTextColor   start  start   textToPutAsPlaceHolder length  0                                                                           textView text   textToShow   And the result

User · Answer

You can get this done using html string and setting the html to Textview using txtView setText Html fromHtml  Your html string here      For example    txtView setText Html fromHtml   lt html gt  lt body gt  lt font size 5 color red gt Hello  lt  font gt  World  lt  body gt  lt html gt

User · Answer

The best way to do that is Html without substring your text and fully dynamique  For example      public static String getTextSize String text int size             return   lt span style   size   size      gt   text   lt  span gt             and you can use color attribut etc    if the other hand    size setText Html fromHtml getTextSize ls numProducts 100          mContext getString R string products

User · Answer

in kotlin do it as below by using html HtmlCompat fromHtml  quot  lt html gt  lt body gt  lt h1 gt This is Large Heading  - lt  h1 gt  lt br gt This is normal size lt body gt  lt  html gt  quot  HtmlCompat FROM HTML MODE LEGACY

User · Answer

Method 1  public static void increaseFontSizeForPath Spannable spannable  String path  float increaseTime        int startIndexOfPath   spannable toString   indexOf path       spannable setSpan new RelativeSizeSpan increaseTime   startIndexOfPath              startIndexOfPath   path length    0       using  Utils increaseFontSizeForPath spannable   big   3      make  big  text bigger 3 time than normal text     Method 2  public static void setFontSizeForPath Spannable spannable  String path  int fontSizeInPixel        int startIndexOfPath   spannable toString   indexOf path       spannable setSpan new AbsoluteSizeSpan fontSizeInPixel   startIndexOfPath              startIndexOfPath   path length    0       using  Utils setFontSizeForPath spannable   big    int  textView getTextSize     20      make  big  text bigger 20px than normal text

User · Answer

Just in case you re wondering how you can set multiple different sizes in the same textview  but using an absolute size and not a relative one  you can achieve that using AbsoluteSizeSpan instead of a RelativeSizeSpan   Just get the dimension in pixels of the desired text size  int textSize1   getResources   getDimensionPixelSize R dimen text size 1   int textSize2   getResources   getDimensionPixelSize R dimen text size 2     and then create a new AbsoluteSpan based on the text  String text1    Hi   String text2    there    SpannableString span1   new SpannableString text1   span1 setSpan new AbsoluteSizeSpan textSize1   0  text1 length    SPAN INCLUSIVE INCLUSIVE    SpannableString span2   new SpannableString text2   span2 setSpan new AbsoluteSizeSpan textSize2   0  text2 length    SPAN INCLUSIVE INCLUSIVE       let s put both spans together with a separator and all CharSequence finalText   TextUtils concat span1       span2

[android] Different font size of strings in the same TextView

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