Android TextView 设置文字背景色或文字颜色，字体阴影，字体样式

String str="这是设置TextView部分文字背景颜色和前景颜色的demo!";

int bstart=str.indexOf("背景");

int bend=bstart+"背景".length();

int fstart=str.indexOf("前景");

int fend=fstart+"前景".length();

SpannableStringBuilder style=new SpannableStringBuilder(str);

style.setSpan(new BackgroundColorSpan(Color.RED),bstart,bend,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

style.setSpan(new ForegroundColorSpan(Color.RED),fstart,fend,Spannable.SPAN_EXCLUSIVE_INCLUSIVE);

TextView tvColor=(TextView) findViewById(R.id.tv_color);

tvColor.setText(style);

动态TextView文本内容：

<string name="str_text1">上期抄表%1$s度，本期抄表%2$s度</string>

textView1.setText(getResources().getString(R.string.str_text1,120+"",200+""));

  private void setSpann(){//1ForegroundColorSpan 文本颜色（前景色）SpannableString spannableString = new SpannableString("我是一个无聊的文本，啦啦啦啦啦啦");ForegroundColorSpan colorSpan = new ForegroundColorSpan(Color.parseColor("#0099EE"));spannableString.setSpan(colorSpan, 9, spannableString.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n1");textView3.setText(spannableString);//2BackgroundColorSpan 背景色spannableString.setSpan(new BackgroundColorSpan(Color.parseColor("#0099EE")), 6, spannableString.length(), spannableString.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n2");textView3.append(spannableString);// 3. ClickableSpan: 点击事件相关的Span。ClickableSpan clickableSpan = new ClickableSpan() {@Overridepublic void onClick(View widget) {Toast.makeText(MainActivity.this, "click", Toast.LENGTH_SHORT).show();Log.e("Easy", "click");}};spannableString.setSpan(clickableSpan, 7, 11, Spannable.SPAN_INCLUSIVE_INCLUSIVE) ;textView3.setMovementMethod(LinkMovementMethod.getInstance());textView3.append("\n3");textView3.append(spannableString);//4MaskFilterSpan 修饰效果，如模糊(BlurMaskFilter)、浮雕(EmbossMaskFilter)int length = spannableString.length();//模糊(BlurMaskFilter)MaskFilterSpan maskFilterSpan = new MaskFilterSpan(new BlurMaskFilter(3, BlurMaskFilter.Blur.OUTER));spannableString.setSpan(maskFilterSpan, 0, length - 10, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);//浮雕(EmbossMaskFilter)maskFilterSpan = new MaskFilterSpan(new EmbossMaskFilter(new float[]{1,1,3}, 1.5f, 8, 3));spannableString.setSpan(maskFilterSpan, length - 10, length, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n4");textView3.append(spannableString);//   5、MetricAffectingSpan 父类，一般不用//  RasterizerSpan 光栅效果
//        spannableString.setSpan(new RasterizerSpan(), 0, 7, Spannable.
//                SPAN_INCLUSIVE_EXCLUSIVE);
//        textView3.append("\n");
//        textView3.append(spannableString);// 7StrikethroughSpan 删除线（中划线）spannableString.setSpan(new StrikethroughSpan(), 0, 7, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n7");textView3.append(spannableString);//        8、SuggestionSpan
//        相当于占位符，一般用在EditText输入框中。当双击此文本时，会弹出提示框选择一些建议（推荐的）文字，选中的文本将替换此占位符。在输入法上用的较多。
//        PS：API 14新增，暂无示例。//9UnderlineSpan 下划线spannableString.setSpan(new UnderlineSpan(), 0, spannableString.length(),Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n9");textView3.append(spannableString);// 10AbsoluteSizeSpan 绝对大小（文本字体）spannableString.setSpan(new AbsoluteSizeSpan(20, true), 0, 7,Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n10");textView3.append(spannableString);//   11、DynamicDrawableSpan 设置图片，基于文本基线或底部对齐。DynamicDrawableSpan drawableSpan =new DynamicDrawableSpan(DynamicDrawableSpan.ALIGN_BASELINE) {@Overridepublic Drawable getDrawable() {Drawable d = getResources().getDrawable(R.mipmap.ic_launcher);d.setBounds(0, 0, 50, 50);return d;}};DynamicDrawableSpan drawableSpan2 = new DynamicDrawableSpan(DynamicDrawableSpan.ALIGN_BOTTOM) {@Overridepublic Drawable getDrawable() {Drawable d = getResources().getDrawable(R.mipmap.ic_launcher);d.setBounds(0, 0, 50, 50);return d;}};spannableString.setSpan(drawableSpan, 3, 4, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);spannableString.setSpan(drawableSpan2, 7, 8, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n11");textView3.append(spannableString);// 12ImageSpan 图片Drawable d = getResources().getDrawable(R.mipmap.ic_launcher);d.setBounds(0, 0, 50, 50);spannableString.setSpan(new ImageSpan(d), 3, 4, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n12");textView3.append(spannableString);//13、RelativeSizeSpan 相对大小（文本字体）//参数proportion:比例大小spannableString.setSpan(new RelativeSizeSpan(2.5f), 3, 4,Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n13");textView3.append(spannableString);// 14、ReplacementSpan 父类，一般不用// 15、ScaleXSpan 基于x轴缩放// 参数proportion:比例大小spannableString.setSpan(new ScaleXSpan(3.8f), 3, 7, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n15");textView3.append(spannableString);// 16、StyleSpan 字体样式：粗体、斜体等//Typeface.BOLD_ITALIC:粗体+斜体spannableString.setSpan(new StyleSpan(Typeface.BOLD), 3, 7,Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n16");textView3.append(spannableString);// 17、SubscriptSpan 下标（数学公式会用到）spannableString.setSpan(new SubscriptSpan(), 6, 7, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n17");textView3.append(spannableString);// 18、SuperscriptSpan 上标（数学公式会用到）spannableString.setSpan(new SuperscriptSpan(), 6, 7, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n18");textView3.append(spannableString);// 19、TextAppearanceSpan 文本外貌（包括字体、大小、样式和颜色）//若需自定义TextAppearance，可以在系统样式上进行修改spannableString.setSpan(new TextAppearanceSpan(this, android.R.style.TextAppearance_Medium),6, 7, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n19");textView3.append(spannableString);// 20、TypefaceSpan 文本字体//若需使用自定义字体，可能要重写类TypefaceSpanspannableString.setSpan(new TypefaceSpan("monospace"), 3, 10,Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.append("\n20");textView3.append(spannableString);//  21、URLSpan 文本超链接spannableString.setSpan(new URLSpan("http://orgcent.com"), 10, spannableString.length(),Spannable.SPAN_INCLUSIVE_EXCLUSIVE);textView3.setMovementMethod(new LinkMovementMethod());textView3.append("\n21");textView3.append(spannableString);//让URLSpan可以点击}

部分字体着色

代码：

String sms = "审计系统在线";
String sjs = "审计系统在线";
int fstart = 4;
int fend = 6;
if (sms.contains("在线")) {SpannableStringBuilder style = new SpannableStringBuilder(sms);style.setSpan(new ForegroundColorSpan(Color.rgb(166, 116, 50)), fstart, fend, Spannable.SPAN_EXCLUSIVE_INCLUSIVE);nethomesmstatus.setText(style);
} else {nethomesmstatus.setText(sms);
}

效果：

字体阴影

textView.setShadowLayer(2,6,20,R.color.colorPrimary);//清晰度，偏移量，最后一个无效参数

字体样式

字体类型
Typeface.DEFAULT：默认字体，常规字体类型
Typeface.DEFAULT_BOLD：黑体字体类型
Typeface.MONOSPACE：等宽字体类型
Typeface.SANS_SERIF：sans serif字体类型
字体样式
Typeface.BOLD //粗体
Typeface.BOLD_ITALIC //粗斜体
Typeface.ITALIC //斜体
Typeface.NORMAL //常规

textView.setTypeface(Typeface.DEFAULT, Typeface.BOLD_ITALIC );

//下划线

textView.getPaint().setFlags(Paint. UNDERLINE_TEXT_FLAG );

//抗锯齿

textView.getPaint().setAntiAlias(true);

//中划线
textview.getPaint().setFlags(Paint. STRIKE_THRU_TEXT_FLAG);

// 设置中划线并加清晰
textview.setFlags(Paint. STRIKE_THRU_TEXT_FLAG|Paint.ANTI_ALIAS_FLAG);

holder.odlte.setPaintFlags(Paint. STRIKE_THRU_TEXT_FLAG|Paint.ANTI_ALIAS_FLAG);

//字体加粗

textView.getPaint().setFakeBoldText(true);