#Android xml tools attribute apk#
#Android xml tools attribute android#

#Android xml tools attribute android#

These are analogous to TextAppearance styles for type theming in this case a style only concerned with shape attributes.Let’s take a look at what’s available on Android vs. Shape resources consist mainly of ShapeAppearance styles. Here is how this problem is solved using Sample Data. Shape customization tool Shape resources. However, this placeholder also becomes the default value of the TextView and may cause a production bug, when data doesn’t load at run-time.

But, to see the design preview we generally set some placeholder to the ‘text’ attribute of TextView. I will try to explain this with a very simple example -Most of the time, TextView gets loaded with text at run-time (say, from a network call). This attribute allows you to specify placeholder text and images at preview time itself. We can explicitly create a res/raw/keep.xml to discard that resource so that we have optimized APKs.įor a better understanding on Shrinking your resources you may check this. However, we know that this resource is not getting used into a certain build variant. What’s the point of explicitly discarding a resource if we know that we are not gonna use it? It’s helpful when you are using different build variants! Sometimes shrinker doesn’t shrink a resource because it appears to be used somewhere. For example, when you define the Application name in strings.xml, you will have the compile-time error for app_name to translate into other languages also which is specified for the project. Let’s look at a few attributes from each category used by all developers across the industry: Error Handling AttributesĬonsider a case when your Android Application supports more than one language i.e you have more than one value for each string to support multiple languages. Recent Google I/O majorly came up with Design-time view attributes. Many of these attributes were already present.

#Android xml tools attribute apk#

Hence, these tools are very useful and don’t affect the APK size. Most importantly, Android build tools remove these attributes when it builds an APK. Tools Attributes are the XML attributes defined in the tools namespace which provide compile-time behaviors and design time features. Design-time view attributes (Don’t miss this!).In this article, I will go through two of such tool features. This year, I/O 18, Google introduced some new Android Studio Tool features to help us get a better grip of design at compile time. Android Tools Attributes and Sample Data - Must know helpers!Įvery year at I/O (Google’s biggest developer conference event), Google reveals some new capabilities with extensive quality features to make our lives easier and in turn build better user-friendly products.