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Android ??????

@ ???Android????????????????????????????????????????Android????????????????????UI????

??@ ??????

???????

???@[package:]type/name

???android:text="@string/hello"

???@?????????????????????????????res??????public?private?????

??????

???@android:type/name

???@android:type/name ?@[package:]type/name ??????

???android:textColor="@android:color/opaque_red"

??????????res/values/ ????public???????? sdk_path\platforms\android-8\data\res\values\public.xml?

??* ??????????public??

??????public?non-public?????public?????????sdk_path\platforms\android-8\data\res\values\public.xml

?public??????@*android:type/name ???????@*android:color/opaque_red????public???????????????Google ??????

??? ??????????

?????????????????????????????????????????????????????style???XML????

???android:textColor="?android:textDisabledColor"????????????????@?????????????????????????????????????????

??@+ ?????????

@+type/name ?????R.java???????????

+????????ID????@+id/button ???R.java?????????button?????ID?????ID?????????????ID??????????????????????????

• @+id/selectdlg ??????????ID
• @id/button3 ??????????ID
• @android:id/text1 ????????ID

??????

?Android?????????????????????????????????????????

• app_name?????????
• layout?????
• id???ID
• color?????
• string??????
• drawable?????