Add Auto Read More Button With Thumbnail to Blogger.

1. Logging to your Blogger Account.
Note:- Backup your current template coding after you have to apply this process.
2. Go to Dashboard---> Template ---> Edit HTML.
3. Press CTRL+F in the code window and find </head> this code. 

4. Copy Below Code and paste in above/Before </head> this code.

<script type='text/javascript'>var thumbnail_mode = "no-float" ; 
summary_noimg = 430; 
summary_img = 340; 
img_thumb_height = 100; 
img_thumb_width = 120; 
</script> 
<script type='text/javascript'> 
//<![CDATA[ 
function removeHtmlTag(strx,chop){ 
if(strx.indexOf("<")!=-1) 
{ 
var s = strx.split("<"); 
for(var i=0;i<s.length;i++){ 
if(s[i].indexOf(">")!=-1){ 
s[i] = s[i].substring(s[i].indexOf(">")+1,s[i].length); 
} 
} 
strx = s.join(""); 
} 
chop = (chop < strx.length-1) ? chop : strx.length-2; 
while(strx.charAt(chop-1)!=' ' && strx.indexOf(' ',chop)!=-1) chop++; 
strx = strx.substring(0,chop-1); 
return strx+'...'; 
} 
function createSummaryAndThumb(pID){ 
var div = document.getElementById(pID); 
var imgtag = ""; 
var img = div.getElementsByTagName("img"); 
var summ = summary_noimg; 
if(img.length>=1) { 
imgtag = '<span style="float:left; padding:0px 10px 5px 0px;"><img src="'+img[0].src+'" width="'+img_thumb_width+'px" height="'+img_thumb_height+'px"/></span>'; 
summ = summary_img; 
} 
var summary = imgtag + '<div>' + removeHtmlTag(div.innerHTML,summ) + '</div>'; 
div.innerHTML = summary; 
} 
//]]></script>

summary_ noimg= 430; >> The length of the summery if the post does not have a thumbnail. summary_img = 340;       >>The length of the summery if there is an image in the post that will be converted into a thumbnail. null_thumb_height = 120; >> The height in pixels of the thumbnail. null_thumb_width = 120; >>The width in pixels of the thumbnail.

 

5. Find The Following code <data:post.body/> and replace with below Code.

<b:if cond='data:blog.pageType == &quot;item&quot;'> 
<data:post.body/> 
<b:else/> 
<b:if cond='data:blog.pageType == &quot;static_page&quot;'> 
<data:post.body/> 
<b:else/> 
<div expr:id='&quot;summary&quot; + data:post.id'> 
<data:post.body/> 
</div> 
<script type='text/javascript'> 
createSummaryAndThumb(&quot;summary<data:post.id/>&quot;); 
</script> 
<span class='jump-link' style='font-weight:bold;padding:5px;float:right;text-align:right;'><a expr:href='data:post.url'>Continue Reading...</a></span>
<div style='clear: both;'/> 
</b:if> 
</b:if>

6. Then find ]]></b:skin> this code.

7. Copy below code and paste above/before this code ]]></b:skin>

.jump-link {
    display: block;
    font-size: 12px;
    font-weight: normal;
    text-align:right;
}

.jump-link
{
margin-top:10px;

}
.jump-link a
{
background:#000000;
color:#ffffff;
padding:5px;
border-radius:10px;
text-decoration:none;
font:10px verdana;

}
.jump-link a:hover
{
background:#f2800a;

}

 

8. Save your template.