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今天无意中看到的一个类SpannableStringBuilder，查了下感觉很牛叉；
1.看下实现的效果
第一种
第二种
实现的代码见 使用的模板
2.简单的使用模板：
public class MainActivity extends Activity implements OnClickListener {
private TextView tv;
private Button underline_btn;
private Button strike_btn;
private Button style_btn;
private Button font_btn;
private Button color_btn1;
private Button color_btn2;
private Button url_btn;
private Button image_btn;
private Button maskfilte_btn;
private Button Rasterizer_btn;
private Button spannablestringbuilder;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = (TextView) this.findViewById(R.id.tv);
underline_btn = (Button) this.findViewById(R.id.underline_btn);
strike_btn = (Button) this.findViewById(R.id.strike_btn);
style_btn = (Button) this.findViewById(R.id.style_btn);
font_btn = (Button) this.findViewById(R.id.font_btn);
color_btn1 = (Button) this.findViewById(R.id.color_btn1);
color_btn2 = (Button) this.findViewById(R.id.color_btn2);
url_btn = (Button) this.findViewById(R.id.url_btn);
image_btn = (Button) this.findViewById(R.id.image_btn);
maskfilte_btn = (Button) this.findViewById(R.id.maskfilte_btn);
Rasterizer_btn = (Button) this.findViewById(R.id.Rasterizer_btn);
spannablestringbuilder = (Button) this.findViewById(R.id.spannablestringbuilder);
underline_btn.setOnClickListener(this);
strike_btn.setOnClickListener(this);
style_btn.setOnClickListener(this);
font_btn.setOnClickListener(this);
color_btn1.setOnClickListener(this);
color_btn2.setOnClickListener(this);
url_btn.setOnClickListener(this);
image_btn.setOnClickListener(this);
maskfilte_btn.setOnClickListener(this);
Rasterizer_btn.setOnClickListener(this);
spannablestringbuilder.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.underline_btn:
addUnderLineSpan();
break;
case R.id.strike_btn:
addStrikeSpan();
break;
case R.id.style_btn:
addStyleSpan();
break;
case R.id.font_btn:
addFontSpan();
break;
case R.id.color_btn1:
addForeColorSpan();
break;
case R.id.color_btn2:
addBackColorSpan();
break;
case R.id.url_btn:
addUrlSpan();
break;
case R.id.image_btn:
addImageSpan();
break;
case R.id.maskfilte_btn:
addmaskfilteSpan();
break;
case R.id.Rasterizer_btn:
addRasterizerSpan();
break;
case R.id.spannablestringbuilder:
addspannablestringbuilderSpan();
break;
}
}
/**
* spannablestringbuilder
*/
private void addspannablestringbuilderSpan() {
SpannableStringBuilder ss=new SpannableStringBuilder("红色超链接斜体删除线绿色下划线图片:.");
//用颜色标记文本
ss.setSpan(new ForegroundColorSpan(Color.RED), 0, 2,
//setSpan时需要指定的 flag,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE(前后都不包括).
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
//用超链接标记文本
ss.setSpan(new URLSpan("tel:4155551212"), 2, 5,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
//用样式标记文本（斜体）
ss.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 5, 7,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
//用删除线标记文本
ss.setSpan(new StrikethroughSpan(), 7, 10,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
//用下划线标记文本
ss.setSpan(new UnderlineSpan(), 10, 16,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
//用颜色标记
ss.setSpan(new ForegroundColorSpan(Color.GREEN), 10, 12,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
//获取Drawable资源
Drawable d = getResources().getDrawable(R.drawable.ic_launcher);
d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
//创建ImageSpan
ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);
//用ImageSpan替换文本
ss.setSpan(span, 18, 19, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
tv.append("\n");
tv.setText(ss);
tv.setMovementMethod(LinkMovementMethod.getInstance()); //实现文本的滚动
}
/*
* Spannable.SPAN_EXCLUSIVE_EXCLUSIVE：前后都不包括，即在指定范围的前面和后面插入新字符都不会应用新样式
* Spannable.SPAN_EXCLUSIVE_INCLUSIVE ：前面不包括，后面包括。即仅在范围字符的后面插入新字符时会应用新样式
* Spannable.SPAN_INCLUSIVE_EXCLUSIVE ：前面包括，后面不包括。
* Spannable.SPAN_INCLUSIVE_INCLUSIVE ：前后都包括。
*/
/**
* 光栅效果
*/
private void addRasterizerSpan() {
SpannableString spanText = new SpannableString("StrikethroughSpan");
spanText.setSpan(new StrikethroughSpan(), 0, 7, Spannable.
SPAN_INCLUSIVE_EXCLUSIVE);
tv.append("\n");
tv.append(spanText);
}
/**
* 修饰效果
*/
private void addmaskfilteSpan() {
SpannableString spanText = new SpannableString("benzlocke6666666");
int length = spanText.length();
//模糊(BlurMaskFilter)
MaskFilterSpan maskFilterSpan = new MaskFilterSpan(new BlurMaskFilter(3, Blur.OUTER));
spanText.setSpan(maskFilterSpan, 0, length - 10, Spannable.
SPAN_INCLUSIVE_EXCLUSIVE);
//浮雕(EmbossMaskFilter)
maskFilterSpan = new MaskFilterSpan(new EmbossMaskFilter(new float[]{1,1,3}, 1.5f, 8, 3));
spanText.setSpan(maskFilterSpan, length - 10, length, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
tv.append("\n");
tv.append(spanText);
}
/**
* 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("\n");
tv.append(spanString);
tv.setMovementMethod(LinkMovementMethod.getInstance());
}
/**
* 文字背景颜色
*/
private void addBackColorSpan() {
SpannableString spanString = new SpannableString("文字背景颜色");
BackgroundColorSpan span = new BackgroundColorSpan(Color.YELLOW);
spanString.setSpan(span, 0, 6, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
tv.append("\n");
tv.append(spanString);
}
/**
* 文字颜色
*/
private void addForeColorSpan() {
SpannableString spanString = new SpannableString("文字颜色");
ForegroundColorSpan span = new ForegroundColorSpan(Color.BLUE);
spanString.setSpan(span, 0, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
tv.append("\n");
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("\n");
tv.append(spanString);
}
/**
* 粗体，斜体
*/
private void addStyleSpan() {
SpannableString spanString = new SpannableString("ABCDEF");
StyleSpan span = new StyleSpan(Typeface.BOLD_ITALIC);
spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
tv.append("\n");
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("\n");
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("\n");
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("\n");
tv.append(spanString);
}
}
更多：
android 你所不知道的类SpannableStringBuilder的总结--实现图文混排，查看更多，下划线等等
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原文地址：http://blog.csdn.net/u013424496/article/details/51351541
