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Android TextView中文字透过SpannableString来设置超链接、颜色、字体等属性

2012-06-30 
Android TextView中文字通过SpannableString来设置超链接、颜色、字体等属性在Android中，TextView是我们最常

Android TextView中文字通过SpannableString来设置超链接、颜色、字体等属性

在Android中，TextView是我们最常用的用来显示文本的控件。

? 一般情况下，TextView中的文本都是一个样式。那么如何对于TextView中各个部分的文本来设置字体，大小，颜色，样式，以及超级链接等属性呢？下面我们通过SpannableString的具体实例操作来演示一下。


? ?res-layout-main.xml

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  1. <?xml?version="1.0"?encoding="utf-8"?>??
  2. <LinearLayout?xmlns:android="http://schemas.android.com/apk/res/android"??
  3. ????android:layout_height="wrap_content"?android:layout_width="wrap_content"?android:orientation="horizontal">??
  4. <TextView????
  5. ????android:id="@+id/myTextView"??
  6. ????android:layout_width="fill_parent"???
  7. ????android:layout_height="wrap_content"???
  8. ????/>??
  9. </LinearLayout>??


res-color-color.xml

res-color-linkcolor.xml

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  1. <?xml?version="1.0"?encoding="utf-8"?>??
  2. <selector??xmlns:android="http://schemas.android.com/apk/res/android">??
  3. ????<item?android:state_pressed="true"??
  4. ??????????android:color="#ffffff00"/>?<!--?pressed?-->??
  5. ????<item?android:state_focused="true"??
  6. ??????????android:color="#ff00ffff"/>?<!--?focused?-->??
  7. ????<item?android:color="#ff0ff000"/>?<!--?default?-->??
  8. </selector>??


TextViewLinkActivity

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  1. package?com.snowdream;??
  2. ??
  3. import?java.io.IOException;??
  4. ??
  5. import?org.xmlpull.v1.XmlPullParserException;??
  6. ??
  7. import?android.app.Activity;??
  8. import?android.content.res.ColorStateList;??
  9. import?android.content.res.XmlResourceParser;??
  10. import?android.graphics.Color;??
  11. import?android.os.Bundle;??
  12. import?android.text.SpannableString;??
  13. import?android.text.Spanned;??
  14. import?android.text.method.LinkMovementMethod;??
  15. import?android.text.style.AbsoluteSizeSpan;??
  16. import?android.text.style.BackgroundColorSpan;??
  17. import?android.text.style.BulletSpan;??
  18. import?android.text.style.ForegroundColorSpan;??
  19. import?android.text.style.RelativeSizeSpan;??
  20. import?android.text.style.ScaleXSpan;??
  21. import?android.text.style.StrikethroughSpan;??
  22. import?android.text.style.StyleSpan;??
  23. import?android.text.style.SubscriptSpan;??
  24. import?android.text.style.SuperscriptSpan;??
  25. import?android.text.style.TextAppearanceSpan;??
  26. import?android.text.style.TypefaceSpan;??
  27. import?android.text.style.URLSpan;??
  28. import?android.text.style.UnderlineSpan;??
  29. import?android.widget.TextView;??
  30. ??
  31. public?class?TextViewLinkActivity?extends?Activity?{??
  32. ????TextView?mTextView?=?null;?????
  33. ????SpannableString?msp?=?null;????
  34. ??????
  35. ????/**?Called?when?the?activity?is?first?created.?*/??
  36. ????@Override??
  37. ????public?void?onCreate(Bundle?savedInstanceState)?{??
  38. ????????super.onCreate(savedInstanceState);??
  39. ????????setContentView(R.layout.main);??
  40. ??????????
  41. ????????mTextView?=?(TextView)findViewById(R.id.myTextView);??
  42. ??????????
  43. ????????//创建一个?SpannableString对象????
  44. ????????msp?=?new?SpannableString("字体测试字体大小一半两倍前景色背景色正常粗体斜体粗斜体下划线删除线x1x2电话邮件网站短信彩信地图X轴综合");???
  45. ??????????
  46. ????????//设置字体(default,default-bold,monospace,serif,sans-serif)??
  47. ????????msp.setSpan(new?TypefaceSpan("monospace"),?0,?2,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??
  48. ????????msp.setSpan(new?TypefaceSpan("serif"),?2,?4,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??
  49. ??????????
  50. ????????//设置字体大小（绝对值,单位：像素）???
  51. ????????msp.setSpan(new?AbsoluteSizeSpan(20),?4,?6,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??
  52. ????????msp.setSpan(new?AbsoluteSizeSpan(20,true),?6,?8,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//第二个参数boolean?dip，如果为true，表示前面的字体大小单位为dip，否则为像素，同上。??
  53. ??????????
  54. ????????//设置字体大小（相对值,单位：像素）?参数表示为默认字体大小的多少倍??
  55. ????????msp.setSpan(new?RelativeSizeSpan(0.5f),?8,?10,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//0.5f表示默认字体大小的一半??
  56. ????????msp.setSpan(new?RelativeSizeSpan(2.0f),?10,?12,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//2.0f表示默认字体大小的两倍??
  57. ??????????
  58. ????????//设置字体前景色??
  59. ????????msp.setSpan(new?ForegroundColorSpan(Color.MAGENTA),?12,?15,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//设置前景色为洋红色??
  60. ??????????
  61. ????????//设置字体背景色??
  62. ????????msp.setSpan(new?BackgroundColorSpan(Color.CYAN),?15,?18,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//设置背景色为青色??
  63. ???????
  64. ????????//设置字体样式正常，粗体，斜体，粗斜体??
  65. ????????msp.setSpan(new?StyleSpan(android.graphics.Typeface.NORMAL),?18,?20,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//正常??
  66. ????????msp.setSpan(new?StyleSpan(android.graphics.Typeface.BOLD),?20,?22,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//粗体??
  67. ????????msp.setSpan(new?StyleSpan(android.graphics.Typeface.ITALIC),?22,?24,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//斜体??
  68. ????????msp.setSpan(new?StyleSpan(android.graphics.Typeface.BOLD_ITALIC),?24,?27,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??//粗斜体??
  69. ??????????
  70. ????????//设置下划线??
  71. ????????msp.setSpan(new?UnderlineSpan(),?27,?30,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??
  72. ??????????
  73. ????????//设置删除线??
  74. ????????msp.setSpan(new?StrikethroughSpan(),?30,?33,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);??
  75. ??????????
  76. ????????//设置上下标??
  77. ????????msp.setSpan(new?SubscriptSpan(),?34,?35,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?????//下标?????
  78. ????????msp.setSpan(new?SuperscriptSpan(),?36,?37,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);???//上标??????????????
  79. ??????????
  80. ????????//超级链接（需要添加setMovementMethod方法附加响应）??
  81. ????????msp.setSpan(new?URLSpan("tel:4155551212"),?37,?39,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?????//电话?????
  82. ????????msp.setSpan(new?URLSpan("mailto:webmaster@google.com"),?39,?41,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?????//邮件?????
  83. ????????msp.setSpan(new?URLSpan("http://www.baidu.com"),?41,?43,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?????//网络?????
  84. ????????msp.setSpan(new?URLSpan("sms:4155551212"),?43,?45,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?????//短信???使用sms:或者smsto:??
  85. ????????msp.setSpan(new?URLSpan("mms:4155551212"),?45,?47,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?????//彩信???使用mms:或者mmsto:??
  86. ????????msp.setSpan(new?URLSpan("geo:38.899533,-77.036476"),?47,?49,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?????//地图?????
  87. ??????????
  88. ????????//设置字体大小（相对值,单位：像素）?参数表示为默认字体宽度的多少倍??
  89. ????????msp.setSpan(new?ScaleXSpan(2.0f),?49,?51,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?//2.0f表示默认字体宽度的两倍，即X轴方向放大为默认字体的两倍，而高度不变??
  90. ??????????
  91. ????????//设置字体（依次包括字体名称，字体大小，字体样式，字体颜色，链接颜色）??
  92. ????????ColorStateList?csllink?=?null;??
  93. ????????ColorStateList?csl?=?null;??
  94. ????????XmlResourceParser?xppcolor=getResources().getXml?(R.color.color);??
  95. ????????try?{??
  96. ????????????csl=?ColorStateList.createFromXml(getResources(),xppcolor);??
  97. ????????}catch(XmlPullParserException?e){??
  98. ????????????//?TODO:?handle?exception??
  99. ????????????e.printStackTrace();??????????
  100. ????????}catch(IOException?e){??
  101. ????????????//?TODO:?handle?exception??
  102. ????????????e.printStackTrace();??????????
  103. ????????}??
  104. ??
  105. ????????XmlResourceParser?xpplinkcolor=getResources().getXml(R.color.linkcolor);??
  106. ????????try?{??
  107. ????????????csllink=?ColorStateList.createFromXml(getResources(),xpplinkcolor);??
  108. ????????}catch(XmlPullParserException?e){??
  109. ????????????//?TODO:?handle?exception??
  110. ????????????e.printStackTrace();??????????
  111. ????????}catch(IOException?e){??
  112. ????????????//?TODO:?handle?exception??
  113. ????????????e.printStackTrace();??????????
  114. ????????}??
  115. ????????msp.setSpan(new?TextAppearanceSpan("monospace",android.graphics.Typeface.BOLD_ITALIC,?30,?csl,?csllink),?51,?53,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);???
  116. ???????
  117. ????????//设置项目符号??
  118. ????????msp.setSpan(new?BulletSpan(android.text.style.BulletSpan.STANDARD_GAP_WIDTH,Color.GREEN),?0?,53,?Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);?//第一个参数表示项目符号占用的宽度，第二个参数为项目符号的颜色??
  119. ??
  120. ??????????
  121. ????????mTextView.setText(msp);??
  122. ????????mTextView.setMovementMethod(LinkMovementMethod.getInstance());???
  123. ????}??
  124. }??

1 楼 lenomon 2012-03-12   这篇文字也许对你有些用，Android使用TextView实现无下划线超链接

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