lundi 29 juin 2015

Why does the android studios layout preview look different

When i first create an android studio project, there should be a pre made layout preview in the activity_main.xml, but i only see a grey screen with the words 'Hello World'.

Here is what it looks like...enter image description here

but it should look like this...

enter image description here

How do i fix this? I tried restarting my computer and pressing reload in android studios, but nothing is working. Does anyone have any ideas?

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