@ in AndroidManifest.xml file
android, xml
Solution
In this case:
android:layout_width="fill_parent"
the value for the attribute, `android:layout_width`, is specified directly inside the quotes, `fill_parent`. In the other case:
android:text="@string/hello"
the value for the attribute, `android:text="@string/hello"`, is specified elsewhere. This is indicated by the `@` at the beginning of the string. In this example it is `@string/hello`. The value is in a resource.
From the "Resource values" section in The AndroidManifest.xml File from the Android Developers site. Found from link in allclaws answer.
Resource values are expressed in the following format,
@[package:]type:name
where the package name can be omitted if the resource is in the same package as the application, type is a type of resource — such as "string" or "drawable" — and name is the name that identifies the specific resource.
Problem
From the O'Reilly book "Android Application Development " by Rick Rogers, John Lombardo, Zigurd Mednieks & Blake Meike, page 23: ``` <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> ``` From page 44: ``` <application android:icon="@drawable/icon2"> ``` What is the meaning of the `@` in each of the above fragments?