How to change a TextView s style at runtime

Question

I have an android app on which  when the user taps a TextView  I would like to apply a defined style   I thought to find a textview setStyle   but it doesn t exists  I tried   textview setTextAppearance      but it does not work

User · Answer

Programmatically  Run time  You can do programmatically using setTypeface     textView setTypeface null  Typeface NORMAL           for Normal Text textView setTypeface null  Typeface BOLD             for Bold only textView setTypeface null  Typeface ITALIC           for Italic textView setTypeface null  Typeface BOLD ITALIC      for Bold and Italic   XML  Design Time  You can set in XML as well   android textStyle  normal  android textStyle  normal bold  android textStyle  normal italic  android textStyle  bold  android textStyle  bold italic    Hope this will help  Summved

User · Answer

try this line of code      textview setTypeface textview getTypeface    Typeface DEFAULT BOLD     here   it will get current Typeface from this textview and replace it using new Typeface  New typeface here is DEFAULT BOLD but you can apply many more

User · Answer

TextView tvCompany    TextView findViewById R layout tvCompany   tvCompany setTypeface null Typeface BOLD     You an set it from code  Typeface

User · Answer

Like Jonathan suggested  using textView setTextTypeface works  I just used it in an app a few seconds ago   textView setTypeface null  Typeface BOLD      Typeface NORMAL  Typeface ITALIC etc

User · Answer

i found textView setTypeface Typeface DEFAULT BOLD   to be the simplest method

User · Answer

Depending on which style you want to set  you have to use different methods  TextAppearance stuff has its own setter  TypeFace has its own setter  background has its own setter  etc

User · Answer

I did this by creating a new XML file res values style xml as follows    lt  xml version  1 0  encoding  utf-8   gt   lt resources gt        lt style name  boldText  gt           lt item name  android textStyle  gt bold italic lt  item gt           lt item name  android textColor  gt  FFFFFF lt  item gt       lt  style gt        lt style name  normalText  gt           lt item name  android textStyle  gt normal lt  item gt           lt item name  android textColor  gt  C0C0C0 lt  item gt       lt  style gt    lt  resources gt    I also have an entries in my  strings xml  file like this    lt color name  highlightedTextViewColor  gt  000088 lt  color gt   lt color name  normalTextViewColor  gt  000044 lt  color gt    Then  in my code I created a ClickListener to trap the tap event on that TextView  EDIT  As from API 23  setTextAppearance  is deprecated      myTextView setOnClickListener new View OnClickListener                     public void onClick View view                         highlight the TextView                       myTextView setTextAppearance getApplicationContext    R style boldText       if  Build VERSION SDK INT  lt  23           myTextView setTextAppearance getApplicationContext    R style boldText         else          myTextView setTextAppearance R style boldText              myTextView setBackgroundResource R color highlightedTextViewColor                                       To change it back  you would use this   if  Build VERSION SDK INT  lt  23        myTextView setTextAppearance getApplicationContext    R style normalText     else     myTextView setTextAppearance R style normalText     myTextView setBackgroundResource R color normalTextViewColor

User · Answer

See doco for setText   in TextView http   developer android com reference android widget TextView html     To style your strings  attach android text style   objects to a SpannableString  or see the Available Resource Types documentation for an example of setting formatted text in the XML resource file

[java] How to change a TextView's style at runtime

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