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SpannableString与SpannableStringBuilder使用

发布时间:2016-09-22 19:00:10
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 ...

SpannableString与SpannableStringBuilder使用

转自:http://blog.it985.com/14433.html

SpannableString与SpannableStringBuilder使用

 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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