例子1：
设置部分文字背景高亮显示：
Java代码
public class HighLightActivity extends Activity {
String strs=
"我的心太乱了，给我点空白。"
;
TextView textview;
int
start =
3
;
int
end =
5
;
/** Called when the activity is first created. */
@Override
public
void
onCreate(Bundle savedInstanceState) {
super
.onCreate(savedInstanceState);
setContentView(R.layout.high_light);
textview=(TextView)findViewById(R.id.textview);
SpannableStringBuilder style=
new
SpannableStringBuilder(strs);
style.setSpan(
new
BackgroundColorSpan(Color.RED),start,end,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
textview.setText(style);
}
}
同时设置文字和背景高亮显示：
Java代码
public
class
HighLightActivity
extends
Activity {
String strs=
"我的心太乱了，给我点空白。"
;
TextView textview;
int
start =
3
;
int
end =
5
;
/** Called when the activity is first created. */
@Override
public
void
onCreate(Bundle savedInstanceState) {
super
.onCreate(savedInstanceState);
setContentView(R.layout.high_light);
textview=(TextView)findViewById(R.id.textview);
SpannableStringBuilder style=
new
SpannableStringBuilder(strs);
style.setSpan(
new
BackgroundColorSpan(Color.RED),start,end,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
style.setSpan(
new
ForegroundColorSpan(Color.RED),
7
,
9
,Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
textview.setText(style);
}
}
参数说明：
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
API里面解释：Spans of type SPAN_EXCLUSIVE_EXCLUSIVE do not expand to include text inserted at either their starting or ending point. They can never have a length of 0 and are automatically removed from the buffer if all the text they cover is removed.
即在原文本头或尾追加新文本的样式不受原文本样式影响，原文本高亮，新追加文本不高亮。
Spannable.SPAN_EXCLUSIVE_INCLUSIVE
API里面解释：Non-0-length spans of type SPAN_INCLUSIVE_EXCLUSIVE expand to include text inserted at their ending point but not at their starting point. When 0-length, they behave like points.
即在原文本尾追加新文本的样式受原文本样式影响，原来文本尾高亮，新追加文本也高亮
例子2：
功能:实现在一个TextView里显示了一行字符串，需要这个串里字符显示不同颜色.
代码如下:
attrs.xml文件:
第二种方式:
String newMessageInfo = "" + 红色内容
+ "TextView学习显示不同颜色";
mTextView.setTextView(Html.fromHtml(newMessageInfo));
例子3：
SpannableString ss = new SpannableString( "红色打电话粗体删除线绿色下划线图片:.");
ss.setSpan(new ForegroundColorSpan(Color.RED), 0, 2,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new URLSpan("tel:4155551212"), 2, 5,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new StyleSpan(Typeface.BOLD), 5, 7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new StrikethroughSpan(), 7, 10,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new UnderlineSpan(), 10, 16,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new ForegroundColorSpan(Color.GREEN), 10, 15, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
Drawable d = getResources().getDrawable(R.drawable.icon48x48_1);
d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);
ss.setSpan(span, 18, 19, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
TextView t4 = (TextView) findViewById(R.id.text4);
t4.setText(ss);
t4.setMovementMethod(LinkMovementMethod.getInstance());
例子4：
TextView是用来显示文本的，有时需要给TextView中的个别字设置为超链接，或者设置个别字的颜色、字体等，那就需要用到Spannable对象，可以借助Spannable对象实现以上设置。
效果图：
Activity代码：
public
class
TextViewLinkActivity
extends
Activity {
TextView myTextView;
@Override
public
void
onCreate(Bundle savedInstanceState) {
super
.onCreate(savedInstanceState);
setContentView(R.layout.main);
myTextView = (TextView)
this
.findViewById(R.id.myTextView);
//创建一个 SpannableString对象
SpannableString sp =
new
SpannableString(
"这句话中有百度超链接,有高亮显示，这样，或者这样，还有斜体."
);
//设置超链接
sp.setSpan(
new
URLSpan(
"http://www.baidu.com"
),
5
,
7
,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
//设置高亮样式一
sp.setSpan(
new
BackgroundColorSpan(Color.RED),
17
,
19
,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
//设置高亮样式二
sp.setSpan(
new
ForegroundColorSpan(Color.YELLOW),
20
,
24
,Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
//设置斜体
sp.setSpan(
new
StyleSpan(android.graphics.Typeface.BOLD_ITALIC),
27
,
29
, Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
//SpannableString对象设置给TextView
myTextView.setText(sp);
//设置TextView可点击
myTextView.setMovementMethod(LinkMovementMethod.getInstance());
}
}
