TextView部分文字高亮显示并同时显示表情

这里显示表情的思路是，先把表情准备到本地中，给表情添加一个bean，TextView通过替换编码来显示表情。

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例如【嘻嘻】，找到这样的字符串则去本地文件夹中寻找对应的图片并显示。

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package com.uim.microblog.util;import java.lang.reflect.Field;import java.util.List;import android.app.Activity;import android.graphics.drawable.Drawable;import android.text.Spannable;import android.text.SpannableString;import android.text.Spanned;import android.text.style.ImageSpan;import android.text.style.URLSpan;import android.util.Log;import android.widget.TextView;import com.uim.R;import com.uim.microblog.model.Emotions;import com.uim.microblog.ui.BlogHomeActivity;/** * 处理TextView界面的类 * @author mzba * @version 2011-06-23 * */public class TextAutoLink {// 加入话题 好友 URL的连结public static char strarray[];public static void addURLSpan(Activity activity, String str, TextView textView) {try{SpannableString ss = new SpannableString(str);strarray = str.toCharArray();int l = str.length() - 10;for (int i = 0; i < l; i++) {if (strarray[i] == 'h' && strarray[i + 1] == 't'&& strarray[i + 2] == 't' && strarray[i + 3] == 'p'&& strarray[i + 4] == ':' && strarray[i + 5] == '/'&& strarray[i + 6] == '/') {StringBuffer sb = new StringBuffer("http://");for (int j = i + 7; true; j++) {if (strarray[j] != ' ')sb.append(strarray[j]);else {Log.d("http", sb.toString());ss.setSpan(new URLSpan(sb.toString()), i, j,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);i = j;break;}}}}// 处理话题l = str.length();StringBuffer sb = null;boolean start = false;int startIndex = 0;for (int i = 0; i < l; i++) {if (strarray[i] == '@') {start = true;sb = new StringBuffer("weibo://weibo.view/");startIndex = i;} else {if (start) {if (strarray[i] == ':') {ss.setSpan(new URLSpan(sb.toString()), startIndex, i,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);sb = null;start = false;} else {sb.append(strarray[i]);}}}}// 处理 话题start = false;startIndex = 0;for (int i = 0; i < l; i++) {if (strarray[i] == '#') {if (!start) {start = true;sb = new StringBuffer("weibo://weibo.view/");startIndex = i;} else {sb.append('#');ss.setSpan(new URLSpan(sb.toString()), startIndex, i + 1,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);sb = null;start = false;}} else {if (start) {sb.append(strarray[i]);}}}                        //处理显示表情String content = str;int len = 0;int starts = 0;int end = 0;while(len < content.length()){if(content.indexOf("[", starts) != -1 && content.indexOf("]", end) != -1){starts = content.indexOf("[", starts);end = content.indexOf("]", end);String phrase = content.substring(starts,end + 1);String imageName = "";List<Emotions> list = BlogHomeActivity.emotions;for (Emotions emotions : list) {if (emotions.getPhrase().equals(phrase)) {imageName = emotions.getImageName();}}try {Field f = (Field)R.drawable.class.getDeclaredField(imageName);int i= f.getInt(R.drawable.class);Drawable drawable = activity.getResources().getDrawable(i);  if (drawable != null) {drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());         ImageSpan span = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE);          ss.setSpan(span, starts,end + 1, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);  }} catch (SecurityException e) {e.printStackTrace();} catch (NoSuchFieldException e) {e.printStackTrace();} catch (IllegalArgumentException e) {e.printStackTrace();} catch (IllegalAccessException e) {}starts = end;len = end;end++;}else{starts++;end++;len = end;}}textView.setText(ss); // 设定TextView话题和url和好友 连接strarray = null;} catch (Exception e) {e.printStackTrace();}}}