values文件夹

1.colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="black">#FF000000</color>
    <color name="white">#FFFFFFFF</color>
    <color name="colorPrimary">#75b9e6</color>
    <color name="colorPrimaryDark">#75b9e6</color>
    <color name="colorAccent">#75b9e6</color>
    <color name="grey" >#a0a2a0</color>
</resources>

2.strings.xml

<resources>
    <string name="app_name">Bluetooth</string>
    <string name="hello">Hello</string>
</resources>

3.styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="style_m