EditText中加入图片也许类似QQ表情图

EditText中加入图片或者类似QQ表情图
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);
        content.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;
}