Android SpannableString Example

here is the example to customise the TextView and String in Android using custom fonts.

package com.syntax.spannablestring_demo;

import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.method.LinkMovementMethod;
import android.text.style.BackgroundColorSpan;
import android.text.style.ClickableSpan;
import android.text.style.ForegroundColorSpan;
import android.text.style.RelativeSizeSpan;
import android.text.style.StrikethroughSpan;
import android.text.style.StyleSpan;
import android.text.style.SubscriptSpan;
import android.text.style.SuperscriptSpan;
import android.text.style.URLSpan;
import android.text.style.UnderlineSpan;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
String title2 = "developed by Google";
String stringNormal = "Android is a mobile operating system developed by Google, based on the Linux kernel";
SpannableString styledTitle, styledBody;

TextView text_Title, text_Title2, text_Body;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

text_Title = (TextView) findViewById(R.id.text_title);
text_Title2 = (TextView) findViewById(R.id.text_title2);
text_Body = (TextView) findViewById(R.id.text_body);

Typeface typeface_Google = Typeface.createFromAsset(getAssets(),"product-sans.ttf");
Typeface typeface_Android = Typeface.createFromAsset(getAssets(),"IDroid.otf");

text_Title.setText("android");
text_Title.setTypeface(typeface_Android);
text_Title.setTextColor(Color.parseColor("#34A853"));
text_Title.setTextSize(30);

text_Title2.setTypeface(typeface_Google);
styledTitle = new SpannableString(title2);
styledTitle.setSpan(new RelativeSizeSpan(1f), 0, 12, 0);//to increase the font size
styledTitle.setSpan(new RelativeSizeSpan(1.5f), 13, 19, 0);
styledTitle.setSpan(new ForegroundColorSpan(Color.parseColor("#4285F4")), 13, 14, 0);//to change the foreground color of text
styledTitle.setSpan(new ForegroundColorSpan(Color.parseColor("#EA4335")), 14, 15, 0);
styledTitle.setSpan(new ForegroundColorSpan(Color.parseColor("#FBBC05")), 15, 16, 0);
styledTitle.setSpan(new ForegroundColorSpan(Color.parseColor("#4285F4")), 16, 17, 0);
styledTitle.setSpan(new ForegroundColorSpan(Color.parseColor("#34A853")), 17, 18, 0);
styledTitle.setSpan(new ForegroundColorSpan(Color.parseColor("#EA4335")), 18, 19, 0);
text_Title2.setText(styledTitle);

styledBody = new SpannableString(stringNormal);
styledBody.setSpan(new StyleSpan(Typeface.BOLD), 0, 7, 0);//to make the text BOLD
styledBody.setSpan(new StyleSpan(Typeface.ITALIC), 7, 12, 0);//to make the text ITALIC
styledBody.setSpan(new UnderlineSpan(), 13, 36, 0);//to make underline
styledBody.setSpan(new StrikethroughSpan(), 37, 49, 0);//to strike the text
styledBody.setSpan(new BackgroundColorSpan(Color.YELLOW), 50, 56, 0);//to change the background color
styledBody.setSpan(new SuperscriptSpan(), 57, 63, 0);//to add superscript
styledBody.setSpan(new SubscriptSpan(), 64, 70, 0);//to add subscript
styledBody.setSpan(new URLSpan("http://www.google.com"), 50, 56, 0);//URL
ClickableSpan clickableSpan = new ClickableSpan() {
   
  @Override
  public void onClick(View widget) {
   Toast.makeText(MainActivity.this, "Clicked", Toast.LENGTH_SHORT).show();
  }
};
styledBody.setSpan(clickableSpan, 71, 83, 0);//for clickable text
text_Body.setMovementMethod(LinkMovementMethod.getInstance());
text_Body.setText(styledBody);

}

}

Here is the link to download the source code