Android TextView 字符串展示不同大小文字

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); 

String[] each;
 String s= "Hello Everyone";  
 for(int i=0;i<s.length();i++)
 {
     each = s.split("\\s");         
 }