Example usage for android.accessibilityservice AccessibilityService getWindows

Introduction

In this page you can find the example usage for android.accessibilityservice AccessibilityService getWindows.

Prototype

public List<AccessibilityWindowInfo> getWindows() 

Source Link

Document

Gets the windows on the screen.

Usage

From source file:com.android.utils.compat.accessibilityservice.AccessibilityServiceCompatUtils.java

/**
 * @return root node of the window that currently has accessibility focus
 *///  w  w  w.j  av a2 s  .c  o m
public static AccessibilityNodeInfoCompat getRootInAccessibilityFocusedWindow(AccessibilityService service) {
    if (service == null) {
        return null;
    }

    AccessibilityNodeInfo focusedRoot = null;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
        List<AccessibilityWindowInfo> windows = service.getWindows();
        // Create window manager with fake value of isInRTL = false. This is okay here since
        // isInRTL will not change the result of getCurrentWindow.
        WindowManager manager = new WindowManager(false /* isInRTL */);
        manager.setWindows(windows);
        AccessibilityWindowInfo accessibilityFocusedWindow = manager
                .getCurrentWindow(false /* useInputFocus */);

        if (accessibilityFocusedWindow != null) {
            focusedRoot = accessibilityFocusedWindow.getRoot();
        }
    }

    if (focusedRoot == null) {
        focusedRoot = service.getRootInActiveWindow();
    }

    if (focusedRoot == null) {
        return null;
    }

    return new AccessibilityNodeInfoCompat(focusedRoot);
}

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