TextView和EditText中添加图片（ImageSpan）

编辑框中加图片,以前一直以为很复杂,后来发现android有些类已经很好的实现了这些功能.

代码如下:

 mSubjectDetailView = (TextView) findViewById(R.id.subject_detail);

 CharSequence text = "如图所示★，dsfdsfdddd，如果fdsfs★东东";
 SpannableStringBuilder builder = new SpannableStringBuilder(text);
 String rexgString = "★";
 Pattern pattern = Pattern.compile(rexgString);
 Matcher matcher = pattern.matcher(text);

 while (matcher.find()) {
     builder.setSpan(
             new ImageSpan(this, R.drawable.ic_launcher), matcher.start(), matcher
                     .end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 }

 mSubjectDetailView.setText(builder);

布局:

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".MainActivity" >

     <TextView
         android:id="@+id/my_title"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_centerHorizontal="true"
         android:layout_centerVertical="true"
         android:text="@string/hello_world" />
      <TextView
                 android:id="@+id/subject_detail"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:minHeight="50dp"
                 android:gravity="center_vertical"
                 android:text="subject"
                 android:textColor="@android:color/primary_text_light_nodisable"
                 android:background="@android:color/white"
                 android:textSize="25sp" />
 </RelativeLayout>

效果: