java - Change the theme of my whole android studio application confusion -


i starting learning android , want change theme of whole android application. based on this

i want change theme dark material theme. in androidmanifest.xml file 

<application     android:allowbackup="true"     android:icon="@mipmap/ic_launcher"     android:label="@string/app_name"     android:supportsrtl="true"     android:theme="@style/theme.material"> // here change

but application cannot recognize theme.material theme? how fix it?

change android:theme="@style/theme.material"> to:

android:theme="@android:style/theme.material">

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