android floating window tutorial

This article explores techniques for creating floating windows in Android applications, discussing various approaches and their implementation specifics. It addresses common questions, such as creating floating windows that are always on top, and exp

How to create a floating window in android?

To create a floating window in Android, you need to first create a new WindowManager instance. You can then use this instance to create a new WindowLayout and add it to the window manager. The WindowLayout object represents the layout of the floating window, and you can specify its width, height, position, and other properties. You can also add views to the window layout, which will be displayed in the floating window.

<code class="java">WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
WindowLayout windowLayout = new WindowLayout();
windowLayout.setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
windowLayout.setWidth(WindowManager.LayoutParams.MATCH_PARENT);
windowLayout.setHeight(WindowManager.LayoutParams.MATCH_PARENT);
windowLayout.setPosition(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY, 100, 100);
windowManager.addView(windowLayout);</code>

What are the different ways to implement a floating window in android app?

You can implement floating window apps by using the following ways:

• Using the WindowManager class: This is the most common way to create a floating window. You can use the WindowManager class to create a new window, and then add it to the window manager. You can also use the WindowManager class to control the position, size, and other properties of the floating window.
• Using the SystemOverlayService class: You can also use the SystemOverlayService class to create a floating window. The SystemOverlayService class is a system service that allows you to create windows that are always on top of other windows. This can be useful for creating floating widgets, or for creating windows that display system information, such as network statistics or battery life.
• Using a third-party library: There are also a number of third-party libraries available that can help you to create floating window apps. These libraries usually provide an easy-to-use interface for creating and managing floating windows.

Can I create a floating window that is always on top in android?

Yes, you can create a floating window that is always on top in Android. To do this, you need to use the WindowManager class to create a new window, and then set the layoutInDisplayCutoutMode property to LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS. This will cause the floating window to be displayed on top of all other windows, even those that are in fullscreen mode.

<code class="java">WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
WindowLayout windowLayout = new WindowLayout();
windowLayout.setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
windowLayout.setWidth(WindowManager.LayoutParams.MATCH_PARENT);
windowLayout.setHeight(WindowManager.LayoutParams.MATCH_PARENT);
windowLayout.setPosition(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY, 100, 100);
windowLayout.setLayoutInDisplayCutoutMode(WindowLayout.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS);
windowManager.addView(windowLayout);</code>

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