Mar 28, 2018 · RelativeLayout will work but you can use FrameLayout. The FrameLayout is the simplest ViewGroup and stacks the Views in the order they're defined in layout XML (or added programmatically); the first will be lower, and the last will be on top. Here is an example where two Views are stacked and offset to better illustrate the point:

Nov 15, 2010 · I want to know how can we place one view above the other, with varying z-index (preferably in linear layout) ? You can't use a LinearLayout for this, but you can use a FrameLayout. In a FrameLayout, the z-index is defined by the order in which the items are added, for example: xmlns:android="http://schemas.android.com/apk/res/android"

You could use the ViewGroup.addView(View child, int index, ViewGroup.LayoutParams params) or a variant along with ViewGroup.removeView(View view) or ViewGroup.removeViewAt(int index).

Feb 11, 2018 · An overlay is an extra layer that sits on top of a View (the “host view”) which is drawn after all other content in that view (including children if the view is a ViewGroup). Interaction with the...

Feb 26, 2025 · Learn how to work with layouts in Compose. ConstraintLayout lets you create large, complex layouts with a flat view hierarchy—no nested view groups.

Feb 10, 2025 · Implement responsive/adaptive layouts to enable your view‑based app to support all display sizes, orientations, and configurations, including resizable configurations such as multi-window mode.

Jun 27, 2024 · Android offers a sophisticated and powerful componentized model for building your UI, based on the fundamental layout classes View and ViewGroup. The platform includes a variety of prebuilt View and ViewGroup subclasses—called widgets and layouts, respectively—that you can use to construct your UI.

Hello in this tutorial, I will show you how to create an overlay view that will appear on top of other apps using Accessibility Service. Creating the Service. Begin by creating a class that extends AccessibilityService. Then override the onAccessibilityEvent() and onInterrupt() required methods to remove the error.

Dec 5, 2016 · You can define rules like View A has to align parent layout bottom, View B has to align A bottom to top, etc. Update based on comment. Usually you set the content with setContentView(R.layout.your_layout) in onCreate (it will inflate the layout for you). You can do that manually and call setContentView(inflatedView), there's no difference.

Aug 1, 2017 · From API level 1 and onward you can place your content into a PopupWindow, which is a new temporary window in which you can place views that will be displayed on top of the current activity window.