转自:http://blog.it985.com/14433.html1、SpannableString、SpannableStringBuilder与String的关系首先SpannableString、SpannableStringBuilder基本上与String差不多,也 ...
转自:http://blog.it985.com/14433.html
1 public class MainActivity extends Activity implements OnClickListener { 2 private TextView tv; 3 private Button underline_btn; 4 private Button strike_btn; 5 private Button style_btn; 6 private Button font_btn; 7 private Button color_btn1; 8 private Button color_btn2; 9 private Button url_btn; 10 private Button image_btn; 11 private Button maskfilte_btn; 12 private Button Rasterizer_btn; 13 private Button spannablestringbuilder; 14 @Override 15 protected void onCreate(Bundle savedInstanceState) { 16 super.onCreate(savedInstanceState); 17 setContentView(R.layout.activity_main); 18 tv = (TextView) this.findViewById(R.id.tv); 19 underline_btn = (Button) this.findViewById(R.id.underline_btn); 20 strike_btn = (Button) this.findViewById(R.id.strike_btn); 21 style_btn = (Button) this.findViewById(R.id.style_btn); 22 font_btn = (Button) this.findViewById(R.id.font_btn); 23 color_btn1 = (Button) this.findViewById(R.id.color_btn1); 24 color_btn2 = (Button) this.findViewById(R.id.color_btn2); 25 url_btn = (Button) this.findViewById(R.id.url_btn); 26 image_btn = (Button) this.findViewById(R.id.image_btn); 27 maskfilte_btn = (Button) this.findViewById(R.id.maskfilte_btn); 28 Rasterizer_btn = (Button) this.findViewById(R.id.Rasterizer_btn); 29 spannablestringbuilder = (Button) this.findViewById(R.id.spannablestringbuilder); 30 31 underline_btn.setOnClickListener(this); 32 strike_btn.setOnClickListener(this); 33 style_btn.setOnClickListener(this); 34 font_btn.setOnClickListener(this); 35 color_btn1.setOnClickListener(this); 36 color_btn2.setOnClickListener(this); 37 url_btn.setOnClickListener(this); 38 image_btn.setOnClickListener(this); 39 maskfilte_btn.setOnClickListener(this); 40 Rasterizer_btn.setOnClickListener(this); 41 spannablestringbuilder.setOnClickListener(this); 42 43 } 44 45 @Override 46 public void onClick(View v) { 47 switch (v.getId()) { 48 case R.id.underline_btn: 49 addUnderLineSpan(); 50 break; 51 case R.id.strike_btn: 52 addStrikeSpan(); 53 break; 54 case R.id.style_btn: 55 addStyleSpan(); 56 break; 57 case R.id.font_btn: 58 addFontSpan(); 59 break; 60 case R.id.color_btn1: 61 addForeColorSpan(); 62 break; 63 case R.id.color_btn2: 64 addBackColorSpan(); 65 break; 66 case R.id.url_btn: 67 addUrlSpan(); 68 break; 69 case R.id.image_btn: 70 addImageSpan(); 71 break; 72 case R.id.maskfilte_btn: 73 addmaskfilteSpan(); 74 break; 75 case R.id.Rasterizer_btn: 76 addRasterizerSpan(); 77 break; 78 case R.id.spannablestringbuilder: 79 addspannablestringbuilderSpan(); 80 break; 81 } 82 } 83 /** 84 * spannablestringbuilder 85 */ 86 private void addspannablestringbuilderSpan() { 87 SpannableStringBuilder ss=new SpannableStringBuilder("红色超链接斜体删除线绿色下划线图片:."); 88 //用颜色标记文本 89 ss.setSpan(new ForegroundColorSpan(Color.RED), 0, 2, 90 //setSpan时需要指定的 flag,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE(前后都不包括). 91 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 92 //用超链接标记文本 93 ss.setSpan(new URLSpan("tel:4155551212"), 2, 5, 94 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 95 //用样式标记文本(斜体) 96 ss.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), 5, 7, 97 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 98 //用删除线标记文本 99 ss.setSpan(new StrikethroughSpan(), 7, 10, 100 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);101 //用下划线标记文本102 ss.setSpan(new UnderlineSpan(), 10, 16, 103 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);104 //用颜色标记105 ss.setSpan(new ForegroundColorSpan(Color.GREEN), 10, 12, 106 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);107 //获取Drawable资源108 Drawable d = getResources().getDrawable(R.drawable.ic_launcher); 109 d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());110 //创建ImageSpan111 ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);112 //用ImageSpan替换文本113 ss.setSpan(span, 18, 19, Spannable.SPAN_INCLUSIVE_EXCLUSIVE); 114 tv.append("\n");115 tv.setText(ss);116 tv.setMovementMethod(LinkMovementMethod.getInstance()); //实现文本的滚动 117 }118 119 /*120 * 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121 * 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122 * Spannable.SPAN_INCLUSIVE_EXCLUSIVE :前面包括,后面不包括。123 * Spannable.SPAN_INCLUSIVE_INCLUSIVE :前后都包括。124 */125 /**126 * 光栅效果127 */128 private void addRasterizerSpan() {129 SpannableString spanText = new SpannableString("StrikethroughSpan");130 spanText.setSpan(new StrikethroughSpan(), 0, 7, Spannable.131 SPAN_INCLUSIVE_EXCLUSIVE);132 tv.append("\n");133 tv.append(spanText);134 135 }136 /**137 * 修饰效果138 */139 private void addmaskfilteSpan() {140 SpannableString spanText = new SpannableString("benzlocke6666666");141 int length = spanText.length();142 //模糊(BlurMaskFilter)143 MaskFilterSpan maskFilterSpan = new MaskFilterSpan(new BlurMaskFilter(3, Blur.OUTER));144 spanText.setSpan(maskFilterSpan, 0, length - 10, Spannable.145 SPAN_INCLUSIVE_EXCLUSIVE);146 //浮雕(EmbossMaskFilter)147 maskFilterSpan = new MaskFilterSpan(new EmbossMaskFilter(new float[]{1,1,3}, 1.5f, 8, 3));148 spanText.setSpan(maskFilterSpan, length - 10, length, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);149 tv.append("\n");150 tv.append(spanText);151 152 }153 154 /**155 * 超链接156 */157 private void addUrlSpan() {158 SpannableString spanString = new SpannableString("超链接");159 URLSpan span = new URLSpan("tel:0123456789");160 spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);161 tv.append("\n");162 tv.append(spanString);163 164 tv.setMovementMethod(LinkMovementMethod.getInstance());165 }166 167 /**168 * 文字背景颜色169 */170 private void addBackColorSpan() {171 SpannableString spanString = new SpannableString("文字背景颜色");172 BackgroundColorSpan span = new BackgroundColorSpan(Color.YELLOW);173 spanString.setSpan(span, 0, 6, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);174 tv.append("\n");175 tv.append(spanString);176 }177 178 /**179 * 文字颜色180 */181 private void addForeColorSpan() {182 SpannableString spanString = new SpannableString("文字颜色");183 ForegroundColorSpan span = new ForegroundColorSpan(Color.BLUE);184 spanString.setSpan(span, 0, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);185 tv.append("\n");186 tv.append(spanString);187 }188 189 /**190 * 字体大小191 */192 private void addFontSpan() {193 SpannableString spanString = new SpannableString("36号字体");194 AbsoluteSizeSpan span = new AbsoluteSizeSpan(36);195 spanString.setSpan(span, 0, 5, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);196 tv.append("\n");197 tv.append(spanString);198 }199 200 /**201 * 粗体,斜体202 */203 private void addStyleSpan() {204 SpannableString spanString = new SpannableString("ABCDEF");205 StyleSpan span = new StyleSpan(Typeface.BOLD_ITALIC);206 spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);207 tv.append("\n");208 tv.append(spanString);209 }210 211 /**212 * 删除线213 */214 private void addStrikeSpan() {215 SpannableString spanString = new SpannableString("删除线");216 StrikethroughSpan span = new StrikethroughSpan();217 spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);218 tv.append("\n");219 tv.append(spanString);220 }221 222 /**223 * 下划线224 */225 private void addUnderLineSpan() {226 SpannableString spanString = new SpannableString("下划线");227 UnderlineSpan span = new UnderlineSpan();228 spanString.setSpan(span, 0, 3, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);229 tv.append("\n");230 tv.append(spanString);231 }232 233 /**234 * 图片235 */236 private void addImageSpan() {237 SpannableString spanString = new SpannableString(" ");238 Drawable d = getResources().getDrawable(R.drawable.ic_launcher);239 d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());240 ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);241 spanString.setSpan(span, 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);242 tv.append("\n");243 tv.append(spanString);244 }245 }
原标题:SpannableString与SpannableStringBuilder使用
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