The undesirable look of the on-screen enter methodology on Android gadgets can disrupt consumer expertise and workflow. This conduct continuously happens when an utility incorrectly triggers the enter methodology, even when consumer enter shouldn’t be instantly required. For instance, a textual content subject in a background course of might inadvertently request focus, ensuing within the keyboard show, regardless of consumer interplay with that particular subject.
Addressing this subject enhances usability and battery life. An pointless lively enter methodology consumes system assets, doubtlessly resulting in faster battery drain. Moreover, stopping unintended keyboard shows reduces display muddle and improves general utility responsiveness, contributing to a extra streamlined and environment friendly consumer interplay. Traditionally, builders have employed varied strategies, starting from easy focus administration methods to extra advanced enter methodology listener implementations, to mitigate this subject.
This text will look at a number of methods for managing the visibility of the on-screen enter methodology on Android, specializing in strategies for programmatically controlling its look and disappearance to optimize consumer expertise. It is going to additionally focus on frequent causes of undesirable keyboard activation and diagnose and resolve these points.
1. Focus Administration
Efficient focus administration is a cornerstone in stopping the on-screen keyboard from showing unnecessarily on Android gadgets. By meticulously controlling which UI parts possess enter focus, builders can considerably reduce situations of undesirable keyboard activation. This management shouldn’t be merely about suppressing the keyboard; it is about guaranteeing the consumer interface behaves predictably and responds precisely to consumer interactions.
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Specific Focus Requests
When a view explicitly requests focus, the system sometimes responds by displaying the on-screen keyboard. This conduct is anticipated when the consumer instantly interacts with an editable textual content subject. Nonetheless, unintentional focus requests, usually triggered by background processes or defective UI logic, can result in the keyboard popping up unexpectedly. Figuring out and correcting these errant focus requests is essential for stopping pointless keyboard shows. For example, a community request finishing and updating a hidden textual content subject mustn’t set off the keyboard. As an alternative, UI updates needs to be decoupled from focus requests.
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Focus Change Listeners
Implementing focus change listeners offers a mechanism for monitoring and reacting to adjustments in focus inside an utility. By observing when a view positive aspects or loses focus, builders can implement customized logic to suppress the keyboard when acceptable. For instance, if a customized view handles its personal enter however doesn’t require the system keyboard, a spotlight change listener can be utilized to right away cover the keyboard when that view receives focus. This prevents the system from robotically displaying the keyboard, enhancing consumer expertise.
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Clearing Focus Programmatically
Programmatically clearing focus from a view is a direct methodology of stopping the keyboard from showing. Calling `clearFocus()` on a view that presently holds focus successfully removes it from the enter chain, usually triggering the system to cover the keyboard. This method is especially helpful when navigating between totally different sections of an utility or when dismissing a dialog containing textual content enter fields. Upon dismissal, the applying ought to guarantee no view retains focus to stop the keyboard from remaining seen.
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Default Focus State
The default focus state of views inside a structure can considerably impression keyboard conduct. If a structure comprises an editable textual content subject with no different express focus specified, that textual content subject might robotically obtain focus when the exercise begins, inflicting the keyboard to seem. Setting the `android:focusable` attribute to `false` or `android:focusableInTouchMode` to `false` on the dad or mum structure, and explicitly requesting focus solely when wanted, can stop this. Moreover, think about using a dummy, non-editable view to steal the preliminary focus, guaranteeing that no interactive aspect positive aspects focus till explicitly requested by the consumer.
These focus administration methods are important elements in addressing the problem of undesirable keyboard appearances. By rigorously controlling focus, builders can make sure the keyboard seems solely when vital, contributing to a extra polished and user-friendly utility. Improper focus dealing with is a typical reason behind this drawback, and adopting these methods results in higher management over the on-screen keyboard and a extra predictable consumer expertise.
2. Enter Technique Service
The Enter Technique Service (IMS) in Android is the core element chargeable for managing enter strategies, together with the on-screen keyboard. Understanding its performance is paramount in successfully controlling and stopping undesirable keyboard appearances. The IMS acts as an middleman between functions and the chosen enter methodology, dealing with requests for keyboard visibility and managing the enter course of.
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IMS and Keyboard Visibility Requests
The IMS receives requests from functions indicating when the keyboard needs to be displayed or hidden. These requests are sometimes triggered when a view positive aspects or loses focus, significantly editable textual content fields. A misbehaving utility might inadvertently ship frequent or pointless requests to show the keyboard, resulting in the issue of undesirable pop-ups. A strong IMS implementation appropriately interprets and filters these requests, guaranteeing the keyboard solely seems when genuinely required.
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Customized Enter Technique Implementations
Android permits builders to create customized enter strategies, which instantly interface with the IMS. These customized implementations can override default keyboard conduct, offering extra granular management over visibility. For instance, a specialised utility would possibly require a customized keypad with restricted performance. The customized IMS would then be chargeable for managing its show, doubtlessly suppressing the usual keyboard completely. Incorrect implementation of a customized IMS can, nonetheless, contribute to erratic keyboard conduct.
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`InputMethodManager` and Programmatic Management
Purposes work together with the IMS primarily by way of the `InputMethodManager` class. This class offers strategies for programmatically exhibiting and hiding the keyboard. Builders can leverage `InputMethodManager` to override default system conduct. If an utility detects that the keyboard is showing unnecessarily, it might probably use `InputMethodManager` to explicitly cover it. Cautious use of this class is crucial for guaranteeing a constant and managed keyboard expertise.
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Configuration and Consumer Preferences
The IMS respects consumer preferences and system-wide configurations associated to enter strategies. Customers can disable particular enter strategies or configure settings associated to keyboard conduct. An utility mustn’t override these user-defined settings. As an alternative, it ought to adapt its conduct to align with the consumer’s chosen enter methodology and its related configurations. Disregarding these settings can result in a irritating consumer expertise and contribute to the notion of undesirable keyboard pop-ups.
In abstract, the Enter Technique Service is central to managing keyboard visibility on Android. Understanding its function, how functions work together with it, and the way consumer preferences affect its conduct is important for builders aiming to stop undesirable keyboard appearances. Appropriately leveraging the `InputMethodManager` and respecting consumer configurations are important steps in attaining this aim.
3. Window Flags
Window flags, particularly these referring to the window’s delicate enter mode, considerably affect the on-screen keyboard conduct in Android functions. These flags, set programmatically or by way of XML layouts, dictate how the window interacts with the Enter Technique Service (IMS). Within the context of stopping undesirable keyboard appearances, sure flags are essential. For example, the `WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN` flag requests that the keyboard stays hidden when the window positive aspects focus. If an utility inadvertently shows the keyboard when no textual content enter is required, setting this flag can stop that conduct. A typical state of affairs includes an exercise containing a number of fragments; if the keyboard pops up upon switching to a fraction that doesn’t include editable textual content fields, this flag provides an answer. Equally, `WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING` prevents the window from resizing when the keyboard seems, which may not directly mitigate the notion of undesirable keyboard exercise. Understanding these flags and their supposed results is a prerequisite for successfully managing keyboard visibility.
Sensible utility includes strategically combining totally different window flags to attain desired conduct. For instance, an utility would possibly use `SOFT_INPUT_STATE_HIDDEN` along side a spotlight change listener to make sure the keyboard stays hidden until a particular textual content subject is explicitly chosen. One other state of affairs includes customized dialogs. By default, Android might try to point out the keyboard when a dialog opens, even when the dialog’s main function shouldn’t be textual content enter. Setting acceptable delicate enter mode flags on the dialog’s window can stop this. Conversely, builders can dynamically regulate these flags based mostly on the applying’s present state. Upon navigating to a display requiring textual content enter, a flag could be cleared to permit the keyboard to seem robotically. Clear documentation and constant utility of those flags throughout the applying are important for guaranteeing predictable and desired conduct.
In abstract, window flags symbolize a foundational mechanism for controlling keyboard visibility in Android. Their appropriate utility permits for a extra polished and user-friendly expertise by stopping undesirable keyboard appearances. Incorrect or inconsistent use of those flags, nonetheless, can result in erratic and irritating conduct. Builders should meticulously handle these flags, contemplating the precise necessities of every exercise, fragment, and dialog inside their utility, to make sure a constant and intuitive keyboard expertise. The selection of flags ought to replicate the applying’s design and consumer interplay flows, guaranteeing the keyboard seems solely when genuinely wanted and disappears when not required.
4. View Attributes
View attributes in Android growth are important determinants of a view’s conduct and interplay with the system, together with the Enter Technique Service (IMS) and the on-screen keyboard. Correctly configuring these attributes is crucial for stopping undesirable keyboard activation and guaranteeing a easy consumer expertise. A number of key attributes instantly affect when and the way the keyboard seems.
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`android:focusable` and `android:focusableInTouchMode`
These attributes outline whether or not a view can obtain enter focus. If `android:focusable` is about to `false`, the view can not acquire focus, stopping the keyboard from showing even when the view is tapped. `android:focusableInTouchMode` additional refines this conduct, specifying focusability when the system is in contact mode. A state of affairs arises when a structure comprises an EditText that positive aspects focus robotically on exercise begin, inflicting the keyboard to seem. By setting `android:focusable` and `android:focusableInTouchMode` to `false` on the dad or mum structure and explicitly setting give attention to the EditText solely when required, the undesirable keyboard look could be prevented. The implications of improper focus administration manifest as a irritating consumer expertise, with the keyboard obscuring content material or disrupting the supposed workflow.
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`android:inputType`
The `android:inputType` attribute dictates the kind of enter anticipated by a textual content subject, which influences the keyboard structure displayed. Whereas primarily supposed for tailoring the keyboard to particular enter sorts (e.g., quantity, e-mail), it additionally impacts keyboard visibility. Setting `android:inputType` to `none` successfully disables the keyboard for that textual content subject, stopping any enter. This turns into related in instances the place a view acts as a show for dynamically generated content material, not requiring direct consumer enter. If a numerical show subject unintentionally prompts the keyboard attributable to its default settings, setting `android:inputType=”none”` ensures the keyboard stays hidden. An incorrect or lacking `android:inputType` can result in an inappropriate keyboard structure being displayed or the keyboard showing when not wanted, hindering consumer interplay.
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`android:windowSoftInputMode`
This attribute, utilized on the exercise or window stage, influences how the window interacts with the Enter Technique Service (IMS). Whereas technically a window attribute, it instantly impacts the conduct of views inside the window. Setting `android:windowSoftInputMode=”stateHidden”` ensures the keyboard is initially hidden when the exercise or window positive aspects focus. This attribute is related when the exercise’s main perform doesn’t instantly contain textual content enter. Contemplate a settings display; the keyboard mustn’t seem on launch. By setting `android:windowSoftInputMode=”stateHidden”`, the keyboard stays hidden till a consumer explicitly selects a textual content enter subject. Neglecting this attribute can result in an intrusive keyboard look on exercise or fragment transitions.
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`android:clickable` and `android:longClickable`
These attributes outline a view’s responsiveness to click on occasions. Whereas seemingly unrelated, they’ll not directly affect keyboard visibility when coupled with customized enter dealing with. If a view is clickable however doesn’t require textual content enter, guaranteeing that the `onClick` listener doesn’t inadvertently request give attention to one other view is significant. In eventualities the place a customized view handles its personal enter logic and shows a customized enter panel, disabling the usual keyboard by way of `android:clickable=”true”` and implementing the enter mechanism could be related. An instance is a customized quantity picker; making its dad or mum ViewGroup clickable and focusing the quantity picker utilizing your individual strategies could be carried out, slightly than specializing in the EditText. Improper dealing with of clickable views can result in unintentional focus requests and the undesirable look of the keyboard.
Finally, a complete understanding and considered utility of view attributes are essential for stopping undesirable keyboard appearances in Android functions. By rigorously configuring these attributes, builders can obtain a predictable and user-friendly keyboard expertise, guaranteeing that the keyboard seems solely when explicitly required and enhancing the general usability of the applying. Failing to deal with these attributes results in a compromised consumer expertise.
5. Configuration Adjustments
Android gadgets endure configuration adjustments, corresponding to display orientation alterations, keyboard availability shifts (bodily keyboard connection/disconnection), and locale adjustments, which may inadvertently set off the on-screen keyboard’s look. These occasions trigger the Android system to destroy and recreate actions, usually resulting in the re-initialization of UI parts and doubtlessly unintended focus requests on textual content fields. If an exercise comprises an EditText subject, the system might robotically try to revive focus to it upon recreation, no matter whether or not consumer enter is straight away required, thus inflicting the keyboard to floor. For instance, rotating a tool from portrait to panorama whereas viewing a display with a centered EditText would possibly set off the keyboard to reappear after the rotation completes, even when the consumer didn’t work together with the sector earlier than the rotation. This sudden conduct underscores the important connection between configuration adjustments and undesirable keyboard visibility.
A main methodology to mitigate this includes appropriately dealing with configuration adjustments utilizing `onSaveInstanceState()` and `onRestoreInstanceState()`. By preserving the main focus state of UI parts earlier than the exercise is destroyed and restoring it appropriately after recreation, builders can stop unintended focus requests. One other method entails explicitly specifying the `android:configChanges` attribute within the exercise’s manifest, declaring the configurations the exercise will deal with itself. Whereas this avoids recreation, the developer assumes duty for updating assets and UI parts programmatically. For example, specifying `android:configChanges=”orientation|keyboardHidden”` tells the exercise to deal with orientation adjustments and keyboard visibility adjustments with out restarting. Throughout the exercise, `onConfigurationChanged()` can then be used to handle any vital UI changes. This method provides larger management however requires cautious implementation to make sure UI consistency throughout totally different configurations.
In abstract, configuration adjustments are a typical reason behind undesirable keyboard pop-ups in Android functions. By using methods corresponding to state preservation by way of `onSaveInstanceState()` and `onRestoreInstanceState()` or by instantly dealing with configuration adjustments by way of the `android:configChanges` attribute and `onConfigurationChanged()`, builders can successfully handle keyboard visibility. These methods require a radical understanding of the Android exercise lifecycle and cautious UI design to stop unintended focus requests. Addressing configuration change-related points is essential for delivering a easy and predictable consumer expertise, significantly throughout numerous system kind elements and utilization eventualities.
6. Code Implementation
Code implementation constitutes the direct utility of programming methods to handle the on-screen keyboard conduct inside Android functions. Its effectiveness instantly correlates with the prevention of undesirable keyboard appearances. Exact and deliberate coding practices are essential for attaining the specified management over enter methodology visibility.
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`InputMethodManager` Management
The `InputMethodManager` class offers programmatic management over the enter methodology service. Features corresponding to `hideSoftInputFromWindow()` and `showSoftInput()` permit builders to explicitly management keyboard visibility. For instance, upon completion of knowledge entry in a dialog, `hideSoftInputFromWindow()` could be invoked to dismiss the keyboard, stopping its persistence throughout subsequent navigation. Incorrect utilization, corresponding to making an attempt to cover the keyboard from a view that doesn’t presently maintain focus, can result in sudden conduct and code exceptions.
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Focus Listener Logic
Implementing `OnFocusChangeListener` interfaces permits monitoring and reacting to adjustments in view focus. By observing when a view positive aspects or loses focus, the keyboard could be programmatically proven or hidden as required. A state of affairs includes a customized view dealing with enter however not requiring the system keyboard; a spotlight listener can instantly cover the system keyboard when that view receives focus. Insufficient focus listener implementation may end up in the keyboard remaining seen when it needs to be hidden, significantly when focus transitions happen between a number of enter fields.
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Asynchronous Operations and Keyboard Visibility
Asynchronous operations, corresponding to community requests or database queries, can inadvertently set off keyboard appearances if not dealt with appropriately. If an asynchronous activity updates a hidden textual content subject, the system would possibly request focus and show the keyboard. Code should guarantee UI updates from asynchronous operations don’t provoke focus requests until explicitly supposed. For instance, post-processing a community response to populate a non-editable textual content view mustn’t set off the keyboard. Improper synchronization between background duties and UI updates usually contributes to undesirable keyboard activation.
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Dealing with Configuration Adjustments Programmatically
Actions can override configuration adjustments, corresponding to orientation shifts, to stop recreation. Throughout the `onConfigurationChanged()` methodology, builders can handle UI changes and keyboard visibility. If an exercise makes use of a customized keyboard and handles orientation adjustments, the code should make sure the customized keyboard’s visibility state is appropriately preserved or up to date. Failure to correctly deal with configuration adjustments can result in the keyboard reappearing after an orientation change, even when it was beforehand hidden.
Efficient code implementation, encompassing exact management over the `InputMethodManager`, diligent focus listener logic, cautious administration of asynchronous operations, and strong dealing with of configuration adjustments, is crucial for stopping undesirable keyboard appearances in Android functions. Such diligence ensures a predictable and user-friendly enter expertise, stopping disruptions and enhancing general usability.
Incessantly Requested Questions
The next questions and solutions handle frequent issues and misconceptions surrounding the administration of on-screen keyboard conduct in Android functions. The knowledge supplied goals to make clear potential points and supply sensible options for builders.
Query 1: What are the first causes of the on-screen keyboard showing unexpectedly in an Android utility?
The sudden look of the on-screen keyboard is usually attributable to improper focus administration, incorrect dealing with of configuration adjustments, or unintentional requests from background processes. A textual content subject gaining focus with out express consumer interplay triggers the keyboard. The failure to protect UI state throughout orientation adjustments may also end in unintentional keyboard show. Moreover, background duties that inadvertently replace textual content fields might set off the keyboard unnecessarily.
Query 2: How does the Enter Technique Service (IMS) affect keyboard visibility, and the way can or not it’s managed?
The Enter Technique Service (IMS) is the central element chargeable for managing enter strategies, together with the on-screen keyboard. Its conduct could be managed by way of the `InputMethodManager` class, which offers strategies for programmatically exhibiting and hiding the keyboard. Cautious use of this class is crucial for guaranteeing a constant and managed keyboard expertise. The IMS can be influenced by window flags and consider attributes that outline how the applying interacts with the enter methodology. Builders may also select to set `android:windowSoftInputMode` within the manifest to attempt to management this conduct from the window stage, however this isn’t all the time efficient.
Query 3: What function do window flags play in stopping undesirable keyboard appearances?
Window flags, particularly these referring to delicate enter mode, dictate how the window interacts with the Enter Technique Service. Flags corresponding to `SOFT_INPUT_STATE_ALWAYS_HIDDEN` request that the keyboard stays hidden when the window positive aspects focus. Strategically combining totally different window flags permits for exact management over keyboard visibility, stopping undesirable appearances. Nonetheless, these flags are usually not a assured resolution, and different strategies could also be vital.
Query 4: How do view attributes, corresponding to `focusable` and `inputType`, impression keyboard visibility?
View attributes considerably affect a view’s interplay with the system, together with the Enter Technique Service. Setting `android:focusable` to `false` prevents the view from gaining focus, thus stopping the keyboard from showing. The `android:inputType` attribute dictates the kind of enter anticipated, and setting it to `none` successfully disables the keyboard for that textual content subject. Each attributes contribute to fine-grained management over keyboard visibility.
Query 5: What steps could be taken to handle keyboard visibility throughout configuration adjustments, corresponding to display orientation alterations?
Throughout configuration adjustments, builders can protect the main focus state of UI parts utilizing `onSaveInstanceState()` and `onRestoreInstanceState()`. Alternatively, specifying the `android:configChanges` attribute within the exercise’s manifest permits the exercise to deal with the configuration change itself, stopping recreation and potential unintended focus requests. Dealing with such adjustments programmatically ensures constant keyboard conduct throughout totally different configurations.
Query 6: What’s the beneficial method for hiding the keyboard programmatically?
The beneficial method for hiding the keyboard programmatically includes utilizing the `InputMethodManager` class’s `hideSoftInputFromWindow()` methodology. This methodology requires a sound window token, sometimes obtained from a view inside the exercise. Correctly invoking this methodology ensures the keyboard is dismissed gracefully, stopping it from obscuring content material or disrupting the consumer interface. The implementation ought to deal with the `null` token gracefully and it’s also essential to find out and deal with the proper flags to go because the final argument of this methodology.
The previous questions handle important points of keyboard visibility administration in Android. By understanding the underlying causes and using the beneficial options, builders can improve the consumer expertise and forestall undesirable keyboard appearances.
This concludes the FAQ part. The subsequent part will delve into troubleshooting methods for persistent keyboard visibility points.
Ideas
The next steerage addresses strategies for stopping the on-screen keyboard from showing unexpectedly inside Android functions. Implementation of those methods improves the consumer expertise and ensures predictable utility conduct.
Tip 1: Implement Exact Focus Management: Make sure that focus is barely programmatically requested on EditText parts when consumer enter is explicitly required. Keep away from computerized focus requests upon exercise or fragment creation. De-couple UI updates from focus requests to stop unintended keyboard activation by background processes.
Tip 2: Make use of `InputType` Restrictions: Make the most of the `android:inputType` attribute in XML layouts to outline the anticipated enter sort for EditText fields. When a textual content subject serves solely as a show for non-user-editable knowledge, set `android:inputType=”none”` to disable keyboard invocation completely.
Tip 3: Deal with Orientation Adjustments Methodically: Forestall exercise recreation throughout orientation adjustments by specifying `android:configChanges=”orientation”` within the exercise’s manifest. Implement `onConfigurationChanged()` to manually handle UI changes, guaranteeing the keyboard stays hidden if not explicitly wanted.
Tip 4: Use `SOFT_INPUT_STATE_ALWAYS_HIDDEN`: Apply the `WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN` flag to actions or dialogs the place keyboard enter shouldn’t be instantly vital. This flag requests the enter methodology service to maintain the keyboard hidden by default, stopping undesirable pop-ups on exercise begin.
Tip 5: Make the most of Focus Change Listeners: Implement `OnFocusChangeListener` to observe focus transitions inside the utility. When a view positive aspects focus that doesn’t require keyboard enter, programmatically cover the keyboard utilizing `InputMethodManager.hideSoftInputFromWindow()`.
Tip 6: Evaluate and Refactor Errant Code: Scrutinize code sections chargeable for UI updates and focus administration, eradicating any unintentional focus requests on textual content enter fields. Refactor any logic that inadvertently triggers `requestFocus()` on EditText parts with out direct consumer interplay.
Adherence to those suggestions can considerably cut back the frequency of undesirable keyboard appearances, contributing to a extra seamless and intuitive consumer expertise. Implementing these methods additionally optimizes useful resource utilization by stopping pointless keyboard processes from operating within the background.
The subsequent part concludes the article with a abstract of key suggestions and concerns for managing on-screen keyboard conduct successfully.
Conclusion
The constant effort to cease keyboard from popping up android is essential. This exploration has outlined varied methods, starting from meticulous focus administration and Enter Technique Service management to strategic use of window flags, exact view attribute configuration, correct dealing with of configuration adjustments, and rigorous code implementation. Understanding the causes of undesirable keyboard activation, coupled with the sensible utility of those methods, permits a extra predictable and user-friendly expertise.
Efficient administration of the on-screen keyboard requires steady vigilance and proactive measures. Prioritizing a seamless consumer expertise by way of the considerate utility of the methodologies offered stays important. The continued refinement of those methods ensures utility responsiveness and usefulness.
