半角字符与全角字符混乱所致:这种情况一般就是汉字与数字、英文字母混用
解决方法一:
将textview中的字符全角化。即将所有的数字、字母及标点全部转为全角字符,使它们与汉字同占两个字节,这样就可以避免由于占位导致的排版混乱问题了。
1. public static
2. char[] c = input.toCharArray();
3. for (int i = 0; i< c.length; i++) {
4. if (c[i] == 12288) {
5. char) 32;
6. continue;
7. if (c[i]> 65280&& c[i]< 65375)
8. char) (c[i] - 65248);
9. }
10. return new
11. }
解决方法二:
去除特殊字符或将所有中文标号替换为英文标号。利用正则表达式将所有特殊字符过滤,或利用replaceAll()将中文标号替换为英文标号。则转化之后,则可解决排版混乱问题。
1. // 替换、过滤特殊字符
2. public static String StringFilter(String str) throws
3. "【","[").replaceAll("】","]").replaceAll("!","!");//替换中文标号
4. "[『』]"; // 清除掉特殊字符
5. Pattern p = Pattern.compile(regEx);
6. Matcher m = p.matcher(str);
7. return m.replaceAll("").trim();
8. }
2、TextView在显示中文的时候标点符号不能显示在一行的行首和行尾,如果一个标点符号刚好在一行的行尾,该标点符号就会连同前一个字符跳到下一行显示。
解决方法:在标点符号后加一个空格。
3、一个英文单词不能被显示在两行中( TextView在显示英文时,标点符号是可以放在行尾的,但英文单词也不能分开 )。
4、如果要两行对其的显示效果:有两种方法
方法一:
修改Android源代码;将frameworks/base/core/java/android/text下的StaticLayout.java文件中的如下代码:
1. if (c == ' ' || c == '/t'
2. '.' || c == ',' || c == ':' || c == ';') &&
3. 1 < here || !Character.isDigit(chs[j - 1
4. 1 >= next || !Character.isDigit(chs[j + 1
5. '/' || c == '-') &&
6. 1 >= next || !Character.isDigit(chs[j + 1
7. true) &&
8. 1 < next && isIdeographic(chs[j + 1 - start], false))) {
9. okwidth = w;
10. 1;
11.
12. if
13. oktop = fittop;
14. if
15. okascent = fitascent;
16. if
17. okdescent = fitdescent;
18. if
19. okbottom = fitbottom;
20. }
去掉就可以了。去掉后标点符号可以显示在行首和行尾,英文单词也可以被分开在两行中显示。
方法二:
自定义View显示文本
网上就有达人采用自定义View来解决这个问题,我做了实验并总结了一下:
自定义View的步骤:
1)继承View类或其子类,例子继承了TextView类;
2)写构造函数,通过XML获取属性(这一步中可以自定义属性,见例程);
3)重写父类的某些函数,一般都是以on开头的函数,例子中重写了onDraw()和onMeasure()函数;
=========================CYTextView.java=============================
1. public class CYTextView extends
2. public static int m_iTextHeight; //文本的高度
3. public static int m_iTextWidth;//文本的宽度
4.
5. private Paint mPaint = null;
6. private String string="";
7. private float LineSpace = 0;//行间距
8.
9. public
10. {
11. super(context,set);
12.
13. TypedArray typedArray = context.obtainStyledAttributes(set, R.styleable.CYTextView);
14.
15. int width = typedArray.getInt(R.styleable. CY TextView_textwidth, 320);
16. float textsize = typedArray.getDimension(R.styleable. CY TextView_textSize, 24);
17. int textcolor = typedArray.getColor(R.styleable. CY TextView_textColor, -1442840576);
18. float linespace = typedArray.getDimension(R.styleable. CY TextView_lineSpacingExtra, 15);
19. int typeface = typedArray.getColor(R.styleable. CY TextView_typeface, 0);
20.
21. typedArray.recycle();
22.
23. //设置 CY TextView的宽度和行间距www.linuxidc.com
24. m_iTextWidth=width;
25. LineSpace=linespace;
26.
27. // 构建paint对象
28. new
29. true);
30. mPaint.setColor(textcolor);
31. mPaint.setTextSize(textsize);
32. switch(typeface){
33. case 0:
34. mPaint.setTypeface(Typeface.DEFAULT);
35. break;
36. case 1:
37. mPaint.setTypeface(Typeface.SANS_SERIF);
38. break;
39. case 2:
40. mPaint.setTypeface(Typeface.SERIF);
41. break;
42. case 3:
43. mPaint.setTypeface(Typeface.MONOSPACE);
44. break;
45. default:
46. mPaint.setTypeface(Typeface.DEFAULT);
47. break;
48. }
49.
50. }
51.
52. @Override
53. protected void
54. {
55. super.onDraw(canvas);
56.
57. char
58. int w = 0;
59. int istart = 0;
60. int
61. int m_iRealLine=0;
62. int x=2;
63. int y=30;
64.
65. new
66.
67. FontMetrics fm = mPaint.getFontMetrics();
68. int) Math.ceil(fm.descent - fm.top) + (int)LineSpace;//计算字体高度(字体高度+行间距)
69.
70. for (int i = 0; i < string.length(); i++)
71. {
72. ch = string.charAt(i);
73. float[] widths = new float[1];
74. String srt = String.valueOf(ch);
75. mPaint.getTextWidths(srt, widths);
76.
77. if (ch == '/n'){
78. m_iRealLine++;
79. m_String.addElement(string.substring(istart, i));
80. 1;
81. 0;
82. else{
83. int) (Math.ceil(widths[0]));
84. if
85. m_iRealLine++;
86. m_String.addElement(string.substring(istart, i));
87. istart = i;
88. i--;
89. 0;
90. else{
91. if (i == (string.length() - 1)){
92. m_iRealLine++;
93. m_String.addElement(string.substring(istart, string.length()));
94. }
95. }
96. }
97. }
98. 2;
99. canvas.setViewport(m_iTextWidth, m_iTextWidth);
100. for (int i = 0, j = 0; i < m_iRealLine; i++, j++)
101. {
102. canvas.drawText((String)(m_String.elementAt(i)), x, y+m_iFontHeight * j, mPaint);
103. }
104. }
105.
106.
107. protected void onMeasure(int widthMeasureSpec, int
108. {
109. int
110. int
111. this.setMeasuredDimension(measuredWidth, measuredHeight);
112. this.setLayoutParams(new
113. super.onMeasure(widthMeasureSpec, heightMeasureSpec);
114. }
115.
116. private int measureHeight(int
117. {
118. int
119. int
120. // Default size if no limits are specified.
121. initHeight();
122. int
123. if
124. // Calculate the ideal size of your
125. // control within this maximum size.
126. // If your control fills the available
127. // space return the outer bound.
128. result = specSize;
129. else if
130. // If your control can fit within these bounds return that value.
131. result = specSize;
132. }
133. return
134. }
135.
136. private void
137. {
138. //设置 CY TextView的初始高度为0
139. 0;
140.
141. //大概计算 CY TextView所需高度
142. FontMetrics fm = mPaint.getFontMetrics();
143. int m_iFontHeight = (int) Math.ceil(fm.descent - fm.top) + (int)LineSpace;
144. int line=0;
145. int istart=0;
146.
147. int w=0;
148. for (int i = 0; i < string.length(); i++)
149. {
150. char
151. float[] widths = new float[1];
152. String srt = String.valueOf(ch);
153. mPaint.getTextWidths(srt, widths);
154.
155. if (ch == '/n'){
156. line++;
157. 1;
158. 0;
159. else{
160. int) (Math.ceil(widths[0]));
161. if
162. line++;
163. istart = i;
164. i--;
165. 0;
166. else{
167. if (i == (string.length() - 1)){
168. line++;
169. }
170. }
171. }
172. }
173. 2;
174. }
175.
176. private int measureWidth(int
177. {
178. int
179. int
180.
181. // Default size if no limits are specified.
182. int result = 500;
183. if
184. // Calculate the ideal size of your control
185. // within this maximum size.
186. // If your control fills the available space
187. // return the outer bound.
188. result = specSize;
189. else if
190. // If your control can fit within these bounds return that value.
191. result = specSize;
192. }
193. return
194. }
195. public void SetText(String text)(//注:此函数目前只有在UI线程中调用才可以把文本画出来,在其它线程中<p> //无法画文本,找了好久找不到原因,求高手解答)
196. {
197. string = text;
198. // requestLayout();
199. // invalidate();
200. }
201. }</p>
=======================attrs.xml===============================
该文件是自定义的属性,放在工程的res/values下
1. <resources>
2. "textwidth" format="integer"/>
3. "typeface">
4. enum name="normal" value="0"/>
5. enum name="sans" value="1"/>
6. enum name="serif" value="2"/>
7. enum name="monospace" value="3"/>
8. </attr>
9.
10. "CYTextView">
11. "textwidth"
12. "textSize" format="dimension"/>
13. "textColor" format="reference|color"/>
14. "lineSpacingExtra" format="dimension"/>
15. "typeface"
16. </declare-styleable>
17. </resources>
=======================main.xml==========================
1. <?xml version="1.0" encoding="utf-8"?>
2. <ScrollView
3. "http://schemas.android.com/apk/res/android"
4. "320px"
5. "320px"
6. "#ffffffff"
7. >
8. <LinearLayout
9. "http://schemas.android.com/apk/res/android"
10. "vertical"
11. "fill_parent"
12. "fill_parent">
13. <com.cy.CYTextView.CYTextView
14. "http://schemas.Android.com/apk/res/ com.cy.CYTextView "
15. "@+id/mv"
16. "wrap_content"
17. "wrap_content"
18. "320"
19. "24sp"
20. "#aa000000"
21. "15sp"
22. "serif">
23. </com. cy .CYTextView.CYTextView>
24. </LinearLayout>
25. </ScrollView>
蓝色代码即为自定义View,其中以cy命名空间开头的属性是自定义属性;
=======================Main.java=============================
1. public class Main extends
2. CYTextView mCYTextView;
3. "Android提供了精巧和有力的组件化模型构建用户的UI部分。主要是基于布局类:View和 ViewGroup。在此基础上,android平台提供了大量的预制的View和xxxViewGroup子类,即布局(layout)和窗口小部件(widget)。可以用它们构建自己的UI。";
4.
5.
6. @Override
7. public void
8. super.onCreate(savedInstanceState);
9. this.setContentView(R.layout.main);
10.
11. mCYTextView = (CYTextView)findViewById(R.id.mv);
12. mCYTextView.SetText(text);
13. }
14.
15. }
半角字符与全角字符混乱所致:这种情况一般就是汉字与数字、英文字母混用
解决方法一:
将textview中的字符全角化。即将所有的数字、字母及标点全部转为全角字符,使它们与汉字同占两个字节,这样就可以避免由于占位导致的排版混乱问题了。
1. public static
2. char[] c = input.toCharArray();
3. for (int i = 0; i< c.length; i++) {
4. if (c[i] == 12288) {
5. char) 32;
6. continue;
7. if (c[i]> 65280&& c[i]< 65375)
8. char) (c[i] - 65248);
9. }
10. return new
11. }
解决方法二:
去除特殊字符或将所有中文标号替换为英文标号。利用正则表达式将所有特殊字符过滤,或利用replaceAll()将中文标号替换为英文标号。则转化之后,则可解决排版混乱问题。
1. // 替换、过滤特殊字符
2. public static String StringFilter(String str) throws
3. "【","[").replaceAll("】","]").replaceAll("!","!");//替换中文标号
4. "[『』]"; // 清除掉特殊字符
5. Pattern p = Pattern.compile(regEx);
6. Matcher m = p.matcher(str);
7. return m.replaceAll("").trim();
8. }
2、TextView在显示中文的时候标点符号不能显示在一行的行首和行尾,如果一个标点符号刚好在一行的行尾,该标点符号就会连同前一个字符跳到下一行显示。
解决方法:在标点符号后加一个空格。
3、一个英文单词不能被显示在两行中( TextView在显示英文时,标点符号是可以放在行尾的,但英文单词也不能分开 )。
4、如果要两行对其的显示效果:有两种方法
方法一:
修改Android源代码;将frameworks/base/core/java/android/text下的StaticLayout.java文件中的如下代码:
1. if (c == ' ' || c == '/t'
2. '.' || c == ',' || c == ':' || c == ';') &&
3. 1 < here || !Character.isDigit(chs[j - 1
4. 1 >= next || !Character.isDigit(chs[j + 1
5. '/' || c == '-') &&
6. 1 >= next || !Character.isDigit(chs[j + 1
7. true) &&
8. 1 < next && isIdeographic(chs[j + 1 - start], false))) {
9. okwidth = w;
10. 1;
11.
12. if
13. oktop = fittop;
14. if
15. okascent = fitascent;
16. if
17. okdescent = fitdescent;
18. if
19. okbottom = fitbottom;
20. }
去掉就可以了。去掉后标点符号可以显示在行首和行尾,英文单词也可以被分开在两行中显示。
方法二:
自定义View显示文本
网上就有达人采用自定义View来解决这个问题,我做了实验并总结了一下:
自定义View的步骤:
1)继承View类或其子类,例子继承了TextView类;
2)写构造函数,通过XML获取属性(这一步中可以自定义属性,见例程);
3)重写父类的某些函数,一般都是以on开头的函数,例子中重写了onDraw()和onMeasure()函数;
=========================CYTextView.java=============================
1. public class CYTextView extends
2. public static int m_iTextHeight; //文本的高度
3. public static int m_iTextWidth;//文本的宽度
4.
5. private Paint mPaint = null;
6. private String string="";
7. private float LineSpace = 0;//行间距
8.
9. public
10. {
11. super(context,set);
12.
13. TypedArray typedArray = context.obtainStyledAttributes(set, R.styleable.CYTextView);
14.
15. int width = typedArray.getInt(R.styleable. CY TextView_textwidth, 320);
16. float textsize = typedArray.getDimension(R.styleable. CY TextView_textSize, 24);
17. int textcolor = typedArray.getColor(R.styleable. CY TextView_textColor, -1442840576);
18. float linespace = typedArray.getDimension(R.styleable. CY TextView_lineSpacingExtra, 15);
19. int typeface = typedArray.getColor(R.styleable. CY TextView_typeface, 0);
20.
21. typedArray.recycle();
22.
23. //设置 CY TextView的宽度和行间距www.linuxidc.com
24. m_iTextWidth=width;
25. LineSpace=linespace;
26.
27. // 构建paint对象
28. new
29. true);
30. mPaint.setColor(textcolor);
31. mPaint.setTextSize(textsize);
32. switch(typeface){
33. case 0:
34. mPaint.setTypeface(Typeface.DEFAULT);
35. break;
36. case 1:
37. mPaint.setTypeface(Typeface.SANS_SERIF);
38. break;
39. case 2:
40. mPaint.setTypeface(Typeface.SERIF);
41. break;
42. case 3:
43. mPaint.setTypeface(Typeface.MONOSPACE);
44. break;
45. default:
46. mPaint.setTypeface(Typeface.DEFAULT);
47. break;
48. }
49.
50. }
51.
52. @Override
53. protected void
54. {
55. super.onDraw(canvas);
56.
57. char
58. int w = 0;
59. int istart = 0;
60. int
61. int m_iRealLine=0;
62. int x=2;
63. int y=30;
64.
65. new
66.
67. FontMetrics fm = mPaint.getFontMetrics();
68. int) Math.ceil(fm.descent - fm.top) + (int)LineSpace;//计算字体高度(字体高度+行间距)
69.
70. for (int i = 0; i < string.length(); i++)
71. {
72. ch = string.charAt(i);
73. float[] widths = new float[1];
74. String srt = String.valueOf(ch);
75. mPaint.getTextWidths(srt, widths);
76.
77. if (ch == '/n'){
78. m_iRealLine++;
79. m_String.addElement(string.substring(istart, i));
80. 1;
81. 0;
82. else{
83. int) (Math.ceil(widths[0]));
84. if
85. m_iRealLine++;
86. m_String.addElement(string.substring(istart, i));
87. istart = i;
88. i--;
89. 0;
90. else{
91. if (i == (string.length() - 1)){
92. m_iRealLine++;
93. m_String.addElement(string.substring(istart, string.length()));
94. }
95. }
96. }
97. }
98. 2;
99. canvas.setViewport(m_iTextWidth, m_iTextWidth);
100. for (int i = 0, j = 0; i < m_iRealLine; i++, j++)
101. {
102. canvas.drawText((String)(m_String.elementAt(i)), x, y+m_iFontHeight * j, mPaint);
103. }
104. }
105.
106.
107. protected void onMeasure(int widthMeasureSpec, int
108. {
109. int
110. int
111. this.setMeasuredDimension(measuredWidth, measuredHeight);
112. this.setLayoutParams(new
113. super.onMeasure(widthMeasureSpec, heightMeasureSpec);
114. }
115.
116. private int measureHeight(int
117. {
118. int
119. int
120. // Default size if no limits are specified.
121. initHeight();
122. int
123. if
124. // Calculate the ideal size of your
125. // control within this maximum size.
126. // If your control fills the available
127. // space return the outer bound.
128. result = specSize;
129. else if
130. // If your control can fit within these bounds return that value.
131. result = specSize;
132. }
133. return
134. }
135.
136. private void
137. {
138. //设置 CY TextView的初始高度为0
139. 0;
140.
141. //大概计算 CY TextView所需高度
142. FontMetrics fm = mPaint.getFontMetrics();
143. int m_iFontHeight = (int) Math.ceil(fm.descent - fm.top) + (int)LineSpace;
144. int line=0;
145. int istart=0;
146.
147. int w=0;
148. for (int i = 0; i < string.length(); i++)
149. {
150. char
151. float[] widths = new float[1];
152. String srt = String.valueOf(ch);
153. mPaint.getTextWidths(srt, widths);
154.
155. if (ch == '/n'){
156. line++;
157. 1;
158. 0;
159. else{
160. int) (Math.ceil(widths[0]));
161. if
162. line++;
163. istart = i;
164. i--;
165. 0;
166. else{
167. if (i == (string.length() - 1)){
168. line++;
169. }
170. }
171. }
172. }
173. 2;
174. }
175.
176. private int measureWidth(int
177. {
178. int
179. int
180.
181. // Default size if no limits are specified.
182. int result = 500;
183. if
184. // Calculate the ideal size of your control
185. // within this maximum size.
186. // If your control fills the available space
187. // return the outer bound.
188. result = specSize;
189. else if
190. // If your control can fit within these bounds return that value.
191. result = specSize;
192. }
193. return
194. }
195. public void SetText(String text)(//注:此函数目前只有在UI线程中调用才可以把文本画出来,在其它线程中<p> //无法画文本,找了好久找不到原因,求高手解答)
196. {
197. string = text;
198. // requestLayout();
199. // invalidate();
200. }
201. }</p>
=======================attrs.xml===============================
该文件是自定义的属性,放在工程的res/values下
1. <resources>
2. "textwidth" format="integer"/>
3. "typeface">
4. enum name="normal" value="0"/>
5. enum name="sans" value="1"/>
6. enum name="serif" value="2"/>
7. enum name="monospace" value="3"/>
8. </attr>
9.
10. "CYTextView">
11. "textwidth"
12. "textSize" format="dimension"/>
13. "textColor" format="reference|color"/>
14. "lineSpacingExtra" format="dimension"/>
15. "typeface"
16. </declare-styleable>
17. </resources>
=======================main.xml==========================
1. <?xml version="1.0" encoding="utf-8"?>
2. <ScrollView
3. "http://schemas.android.com/apk/res/android"
4. "320px"
5. "320px"
6. "#ffffffff"
7. >
8. <LinearLayout
9. "http://schemas.android.com/apk/res/android"
10. "vertical"
11. "fill_parent"
12. "fill_parent">
13. <com.cy.CYTextView.CYTextView
14. "http://schemas.Android.com/apk/res/ com.cy.CYTextView "
15. "@+id/mv"
16. "wrap_content"
17. "wrap_content"
18. "320"
19. "24sp"
20. "#aa000000"
21. "15sp"
22. "serif">
23. </com. cy .CYTextView.CYTextView>
24. </LinearLayout>
25. </ScrollView>
蓝色代码即为自定义View,其中以cy命名空间开头的属性是自定义属性;
=======================Main.java=============================
1. public class Main extends
2. CYTextView mCYTextView;
3. "Android提供了精巧和有力的组件化模型构建用户的UI部分。主要是基于布局类:View和 ViewGroup。在此基础上,android平台提供了大量的预制的View和xxxViewGroup子类,即布局(layout)和窗口小部件(widget)。可以用它们构建自己的UI。";
4.
5.
6. @Override
7. public void
8. super.onCreate(savedInstanceState);
9. this.setContentView(R.layout.main);
10.
11. mCYTextView = (CYTextView)findViewById(R.id.mv);
12. mCYTextView.SetText(text);
13. }
14.
15. }