android SpannableString使用详解

/**

* 超链接

*/

private void addUrlSpan() {

SpannableString spanString = new SpannableString("超链接");

URLSpan span = new URLSpan("tel:0123456789");

spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}

/**

* 文字背景颜色

*/

private void addBackColorSpan() {

SpannableString spanString = new SpannableString("颜色2");

BackgroundColorSpan span = new BackgroundColorSpan(Color.YELLOW);

spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}

/**

* 文字颜色

*/

private void addForeColorSpan() {

SpannableString spanString = new SpannableString("颜色1");

ForegroundColorSpan span = new ForegroundColorSpan(Color.BLUE);

spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}

/**

* 字体大小

*/

private void addFontSpan() {

SpannableString spanString = new SpannableString("36号字体");

AbsoluteSizeSpan span = new AbsoluteSizeSpan(36);

spanString.setSpan(span, 0, 5, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}

/**

* 粗体，斜体

*/

private void addStyleSpan() {

SpannableString spanString = new SpannableString("BIBI");

StyleSpan span = new StyleSpan(Typeface.BOLD_ITALIC);

spanString.setSpan(span, 0, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}

/**

* 删除线

*/

private void addStrikeSpan() {

SpannableString spanString = new SpannableString("删除线");

StrikethroughSpan span = new StrikethroughSpan();

spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}

/**

* 下划线

*/

private void addUnderLineSpan() {

SpannableString spanString = new SpannableString("下划线");

UnderlineSpan span = new UnderlineSpan();

spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}

/**

* 图片

*/

private void addImageSpan() {

SpannableString spanString = new SpannableString(" ");

Drawable d = getResources().getDrawable(R.drawable.ic_launcher);

d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());

ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);

spanString.setSpan(span, 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

tv.append(spanString);

}