Resource is not a Drawable

Question

This code causes force close exception on Emulator(API 18) and works in ASUS Nexus 7(API 21)

Answer 1

Your color resource must reside in an Android resource file (i.e.: in the colors.xml file).
Android would not complain where you set it, but it must be defined as a color resource.

I.e.:

#ebebeb

[EDIT]

The names appear not to match...
See this line:

android:background="@drawable/login_btn_selector"

Then you say: So I tried to place the login_btn_selected.xml.

It seems to be the cause of

Caused by: android.content.res.Resources$NotFoundException: File res/drawable-hdpi-v4/login_btn_selected.xml from drawable resource ID #0x7f020095.