In this tutorial, we look at a simple way of handling multiple states in your layouts, such as loading and displaying a layout that has been loaded by the user. For example, let’s say we have a layout that includes a table with an image, and we want to display this from the Home Screen. We can place the image in the layout, showing an empty image in the Home Screen page. However, we can’t quite get the image to display in the Home Screen page, because we have to use a WebView when working with most WebViews. Well, let’s see if we can find a way around this problem.

When designing a webpage or Android app, you usually don’t want to just show the same layout to every user: every device is different, and users expect different features in your layout. One way to avoid this problem is to have a separate layout that is responsible for showing the different loading states when the user visits the page. This way, you can have different layouts for different loading states, and show only the relevant content to each user based on their preferred view.

When designing your layouts, sometimes you’d like to have more control over what your users see on the screen. For example, you might want to show/hide certain components of your screens based on their state.

Charge layout for Android

The load layout is a container view that allows you to easily switch between screen states (loaded, completed, and so on) using a single line. This eliminates the need to set view.setVisibility for all your different views when the screen state changes from load/cover/complete/error/empty to another state.


  1. Add it to your XML layout and add different layouts as direct children of LoadingLayout.
  2. Make sure you add android:tag to your elements based on what you want them to represent:
Layout type android:tag
Full @string/ll_complete
Download from @string/ll_loading
Empty (optional display) @string/ll_empty
Error (optional display) @string/ll_error

In the end, your layout should look something like this:


  1. And now bits of code like this:

loadingView ?.visibility = View.VISIBLE
completeView ?.visibility = View.GONE
emptyView ?.visibility = View.GONE
errorView ?.visibility = View.GONE

can be replaced by loadingLayout.setState(LOADING)

Add to your project

// in your build.gradle project
allprojects {
repositories { // not under buildscript
maven { url }

//in build.gradle
dependencies of your application module {
implementation of com.valartech:loading-layout:${version}

XML custom attributes

Attribute Description
Standard condition Original state of representation. The default setting is complete.
overlay_tint The color of the tapestry. The default value is 50% transparent black.
cross_fade_success Enable crossfade animation during download -> stop. The default value is set to true


  • You can use a separate view (such as ProgressBar) or a view container (such as ConstraintLayout) as a child of LoadingLayout.
  • LOADING_OVERLAY is a special report that indicates the loading state above the completed state, with a coloring above it. It also prevents keystrokes from ending up in the final layout.
  • Use tools:default_state to quickly control the display of different display states in your layout.


This library adds an extra view to the layout hierarchy, which causes a slight performance degradation. We have not found this to be a noticeable problem in our applications, even with complex views, but use it at your discretion for deeply nested layouts.

GitHub add to our list of blog post intro examples, we’ve got another one for you. We’ve been talking a lot about Layouts and about how you can add a loading state to your layouts. Well, there’s a way to do that, and there’s a way to do it right. We’re going to show you the right way next time.. Read more about android add layout to another layout programmatically and let us know what you think.

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