title: android imagespan not support auto next line
body: <p>android ImageSpan, in textview when last position show a big image is little，but my image is very big,I want to the ImageSpan auto
  next line . I try overload size method and change size
  equal textview width, but doesn't solve the problem</p>
  <pre><code>SpanabeleString contentSS=new SpanabeleString(&quot;hello word on the line [image]&quot;);
  contentSS.setSpan(imageSpan,&quot;[image]&quot;.start,&quot;start&quot;.length,xxx);
  //imageSpan not support auto new line;
  </code></pre>
  <p>I cannot change content,I hope use imagespan implement auto
  next line function</p>