Android SpannableString edit

Add styles to a TextView

In the following example, we create an Activity to display a single TextView.

The TextView will use a SpannableString as its content, which will illustrate some of the available styles.

Here’ what we’re gonna do with the text :

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
     
 SpannableString styledString
  = new SpannableString("Large\n\n"     // index 0 - 5
       + "Bold\n\n"          // index 7 - 11
       + "Underlined\n\n"    // index 13 - 23
       + "Italic\n\n"        // index 25 - 31
       + "Strikethrough\n\n" // index 33 - 46
       + "Colored\n\n"       // index 48 - 55
       + "Highlighted\n\n"   // index 57 - 68
       + "K Superscript\n\n" // "Superscript" index 72 - 83 
       + "K Subscript\n\n"   // "Subscript" index 87 - 96
       + "Url\n\n"           //  index 98 - 101
       + "Clickable\n\n");   // index 103 - 112
  
 // make the text twice as large
 styledString.setSpan(new RelativeSizeSpan(2f), 0, 5, 0);
  
 // make text bold
 styledString.setSpan(new StyleSpan(Typeface.BOLD), 7, 11, 0);
  
 // underline text
 styledString.setSpan(new UnderlineSpan(), 13, 23, 0);
  
 // make text italic
 styledString.setSpan(new StyleSpan(Typeface.ITALIC), 25, 31, 0);
  
 styledString.setSpan(new StrikethroughSpan(), 33, 46, 0);
  
 // change text color
 styledString.setSpan(new ForegroundColorSpan(Color.GREEN), 48, 55, 0);
  
 // highlight text
 styledString.setSpan(new BackgroundColorSpan(Color.CYAN), 57, 68, 0);
  
 // superscript
 styledString.setSpan(new SuperscriptSpan(), 72, 83, 0);
 // make the superscript text smaller
 styledString.setSpan(new RelativeSizeSpan(0.5f), 72, 83, 0);
  
 // subscript
 styledString.setSpan(new SubscriptSpan(), 87, 96, 0);
 // make the subscript text smaller
 styledString.setSpan(new RelativeSizeSpan(0.5f), 87, 96, 0);
  
 // url
 styledString.setSpan(new URLSpan("http://www.google.com"), 98, 101, 0);
  
 // clickable text
 ClickableSpan clickableSpan = new ClickableSpan() {

 @Override
 public void onClick(View widget) {
// We display a Toast. You could do anything you want here.
Toast.makeText(SpanExample.this, "Clicked", Toast.LENGTH_SHORT).show();
 
  }
};
styledString.setSpan(clickableSpan, 103, 112, 0);
// Give the styled string to a TextView
TextView textView = new TextView(this);
// this step is mandated for the url and clickable styles.
textView.setMovementMethod(LinkMovementMethod.getInstance());
// make it neat
textView.setGravity(Gravity.CENTER);
textView.setBackgroundColor(Color.WHITE);
textView.setText(styledString);
setContentView(textView);

}

And the result will look like this:

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156 Vk SDK
170 XMPP
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200 FileIO
203 Moshi
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241 JCodec
243 Okio
254 SpannableString
255 Looper
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