问创建一个包含2行文本的自定义按钮

EN

public class Test extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button but = (Button) findViewById(R.id.button1);
        String butText= "Line 1\nLine 2";
        but.setText(formatString(butText));
    }

    private Spannable formatString(String str) {

        int startSpan = str.indexOf("\n");
        int endSpan   = str.length();
        Spannable spanString = null;
        spanString = new SpannableString(str);
        spanString.setSpan(new TextAppearanceSpan(this,
                R.style.custompoint), startSpan, endSpan,
                Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);        
        return spanString;
    }

}

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style
        name="custompoint">
        <item name="android:textSize">24sp</item>
        <item name="android:textStyle">bold</item>
    </style>
</resources>