Here is a simple Gallery background that highlights the background of the selected gallery item. The background attribute is placed on the gallery item xml (not the actual gallery widget xml).
- - - - my_gallery_item.xml - - - - android:background="@drawable/gallery_background" - - - - drawable/gallery_background.xml - - - - <selector xmlns:android="http://schemas.android.com/apk/res/android"; android:constantSize="true"> <item android:state_focused="true" android:drawable="@color/galleryFocused" /> <item android:drawable="@android:color/transparent" /> </selector> - - - - values/color.xml - - - - <resources> <color name="galleryFocused">#FFFFCC00</color> </resources> On Dec 22, 11:29 pm, jotobjects <[email protected]> wrote: > Just wondering why there is so much complexity involved in getting the > platform Gallery background. The SDK provides a theme that contains > an attribute that is a drawable resource. The theme is not a > drawable so it can't be used in a layout as a background. The example > given is > -http://developer.android.com/resources/tutorials/views/hello-gallery.... > - with these steps - > > TypedArray a = > obtainStyledAttributes(R.styleable.HelloGallery); > mGalleryItemBackground = a.getResourceId( > > R.styleable.HelloGallery_android_galleryItemBackground, 0); > a.recycle(); > setBackgroundResource(mGalleryItemBackground); > > where HelloGallery is a Them that includes the platform Theme > attribute that is the actual drawable - > > <resources> > <declare-styleable name="HelloGallery"> > <attr name="android:galleryItemBackground" /> > </declare-styleable> > </resources> > > All you really want is drawable/gallery_item_background.xml. > Unfortunately the very useful Gallery widget doesn't have default > focus behavior unless you do all this. > > What is the benefit and/or rationale for all these layers? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
