1: install turtoal pls see:
http://www.vogella.com/articles/EclipseMemoryAnalyser/article.html
2: for mat plugin version, is u want to use it:
2.1: open mat view pespective.
2.2 get a img of heap in android dev , u can goto ddms view, and press 
button. the save the img file . (需要选择对应的应用程序。)
2.3 open the imgfile.
u must in mat model
then u can ..
2.4 运行 htprof_conv 命令,转换hprof 文件成标准形式
2.5 打开
