android TextView和EditText中显示图片

EditText（TextView同样处理）。  添加图片主要用SpannableString和ImageSpan类： Drawable drawable = getResources().getDrawable(R.drawable.icon);         drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());         SpannableString spannable = new SpannableString(getText(R.id.editText1).toString() + "[smile]");         ImageSpan span = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE);          spannable.setSpan(span, getText(R.id.editText1).length(),getText(R.id.editText1).length()+"[smile]".length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);         editText.setText(spannable);   将需要的文字高亮显示：  public void highlight(int start,int end){ SpannableStringBuilder spannable=new SpannableStringBuilder(getText().toString());//用于可变字符串 ForegroundColorSpan span=new ForegroundColorSpan(Color.RED); spannable.setSpan(span, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); setText(spannable); } 加下划线：  public void underline(int start,int end){ SpannableStringBuilder spannable=new SpannableStringBuilder(getText().toString()); CharacterStyle span=new UnderlineSpan(); spannable.setSpan(span, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); setText(spannable); } 组合运用： SpannableStringBuilder spannable=new SpannableStringBuilder(getText().toString()); CharacterStyle span_1=new StyleSpan(android.graphics.Typeface.ITALIC); CharacterStyle span_2=new ForegroundColorSpan(Color.RED); spannable.setSpan(span_1, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); spannable.setSpan(span_2, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); setText(spannable); 案例：带有/n换行符的字符串都可以用此方法显示2种颜色 /** * 带有/n换行符的字符串都可以用此方法显示2种颜色 * @param text * @param color1 * @param color2 * @return */ public SpannableStringBuilder highlight(String text,int color1,int color2,int fontSize){ SpannableStringBuilder spannable=new SpannableStringBuilder(text);//用于可变字符串 CharacterStyle span_0=null,span_1=null,span_2; int end=text.indexOf("/n"); if(end==-1){//如果没有换行符就使用第一种颜色显示 span_0=new ForegroundColorSpan(color1); spannable.setSpan(span_0, 0, text.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); }else{ span_0=new ForegroundColorSpan(color1); span_1=new ForegroundColorSpan(color2); spannable.setSpan(span_0, 0, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); spannable.setSpan(span_1, end+1, text.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); span_2=new AbsoluteSizeSpan(fontSize);//字体大小 spannable.setSpan(span_2, end+1, text.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); } return spannable; }