android - Can not setContentView with layout resource file -

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a package named "ui" created in package layout, , layout resource file "my_listview.xml" put in package "ui". setcontentview "my_listview.xml" in mainactiviy.java, failed. what's problem here? appreciated.

protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.my_listview); ... }

edit

if put "my_listview.xml" put in package "layout", setcontentview(r.layout.my_listview); works.

you should place xml files in directories belong, not in custom directories. names of directories in res directory has meaning. example, resources layout-mdpi used if user has phone medium dpi screen. same thing other dirs. should read this,it helpfull: http://developer.android.com/guide/topics/resources/providing-resources.html


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