How do you underline a text in Android XML

Question

How do you underline a text in an XML file  I can t find an option in textStyle

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Use this   TextView txt    TextView  findViewById R id Textview1   txt setPaintFlags txt getPaintFlags     Paint UNDERLINE TEXT FLAG

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First of all  go to String xml file  you can add any HTML attributes like   italic or bold or underline here        lt resources gt           lt string name  your string here  gt This is an  lt u gt underline lt  u gt   lt  string gt       lt  resources gt

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If you want to compare text String or the text will change dynamically then you can created a view in Constraint layout it will adjust according to text length like this    lt android support constraint ConstraintLayout     android layout width  match parent      android layout height  wrap content  gt        lt TextView         android id    id txt Previous          android layout width  wrap content          android layout height  wrap content          android layout marginStart  16dp          android layout marginLeft  16dp          android layout marginEnd  16dp          android layout marginRight  16dp          android layout marginBottom  8dp          android gravity  center          android text  Last Month Rankings          android textColor   color colorBlue          android textSize  15sp          android textStyle  bold          app layout constraintBottom toBottomOf  parent          app layout constraintEnd toEndOf  parent          app layout constraintStart toStartOf  parent    gt        lt View         android layout width  0dp          android layout height  0 7dp          android background   color colorBlue          app layout constraintEnd toEndOf    id txt Previous          app layout constraintStart toStartOf    id txt Previous          app layout constraintBottom toBottomOf   id txt Previous   gt     lt  android support constraint ConstraintLayout gt

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lt resource gt       lt string name  your string here  gt This is an  lt u gt underline lt  u gt   lt  string gt   lt  resources gt    If it does not work then    lt resource gt   lt string name  your string here  gt This is an  amp lt u gt underline amp lt  u gt   lt  string gt      Because   lt   could be a keyword at some time   And for Displaying  TextView textView    TextView  view findViewById R id textview   textView setText Html fromHtml getString R string your string here

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I used below method  it worked for me  Below is example for Button but we can use in TextView as well   Button btnClickMe    Button  findViewById R id btn click me   btnClickMe setPaintFlags btnClickMe getPaintFlags     Paint UNDERLINE TEXT FLAG

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To complete Bhavin answer   For exemple  to add underline or redirection      TextView  findViewById R id tv cgu   setText Html fromHtml getString R string upload poi CGU       lt string name  upload poi CGU  gt  lt   CDATA  J  accepte les  lt a href    gt conditions g  n  rales lt  a gt    gt  lt  string gt    and you can know compatible tag here    http   commonsware com blog Android 2010 05 26 html-tags-supported-by-textview html

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Another way to do it  is creating a custom component extending TextView  It s good for cases where you need to have multiple underlined TextViews   Here s the code for the component   package com myapp components   import android content Context  import android support v7 widget AppCompatTextView  import android text SpannableString  import android text style UnderlineSpan  import android util AttributeSet   public class LinkTextView extends AppCompatTextView       public LinkTextView Context context            this context  null              public LinkTextView Context context  AttributeSet attrs            super context  attrs               Override     public void setText CharSequence text  BufferType type            SpannableString content   new SpannableString text           content setSpan new UnderlineSpan    0  content length    0            super setText content  type             And how to use it in xml    lt com myapp components LinkTextView     android layout width  match parent      android layout height  wrap content      android text  Hello World     gt

User · Answer

If you are using a string resource xml file  supports HTML tags   it can be done using lt b gt   lt  b gt    lt i gt   lt  i gt  and  lt u gt   lt  u gt     lt resources gt       lt string name  your string here  gt          This is an  lt u gt underline lt  u gt        lt  string gt   lt  resources gt    If you want to underline something from code use   TextView tv    TextView  view findViewById R id tv   SpannableString content   new SpannableString  Content    content setSpan new UnderlineSpan    0  content length    0   tv setText content     Hope this helps

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You can use the markup below  but note that if you set the textAllCaps to true the underline effect would be removed    lt resource gt       lt string name  my string value  gt I am  lt u gt underlined lt  u gt   lt  string gt   lt  resources gt      Note  Using textAllCaps with a string  login change settings  that contains markup  the markup will be dropped by the caps conversion    The textAllCaps text transform will end up calling toString on the CharSequence  which has the net effect of removing any markup such as   This check looks for usages of strings containing markup that also specify textAllCaps true

User · Answer

There are different ways to achieve underlined text in an Android TextView   1  lt u gt This is my underlined text lt  u gt   or  I just want to underline  lt u gt this lt  u gt  word   2 You can do the same programmatically    textView setPaintFlags textView getPaintFlags     Paint UNDERLINE TEXT FLAG      3 It can be done by creating a SpannableString and then setting it as the TextView text property  SpannableString text   new SpannableString  Voglio sottolineare solo questa parola    text setSpan new UnderlineSpan    25  6  0   textView setText text

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Create a String resource   lt string name  quot HEADER DELTA quot  gt  lt b gt  lt u gt DELTA lt  u gt  lt  b gt  lt  string gt  and add to your Textview      lt TextView         android id  quot   id txtDeltaText quot          style  quot  style Default TextBox Small quot          android layout width  quot wrap content quot          android layout height  quot wrap content quot          android layout marginTop  quot 4dp quot          android gravity  quot center horizontal quot          android text  quot  string HEADER DELTA quot          app layout constraintEnd toEndOf  quot parent quot          app layout constraintStart toEndOf  quot   id txtActualMetric quot          app layout constraintTop toBottomOf  quot   id txtMetricName quot    gt

[android] How do you underline a text in Android XML?

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