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‘Missing contentDescription attribute on image’ in XML
The most radical way to solve the problem is just to tell the Lint to ignore this check. In Eclipse, go to “Andro/Lint Error Checking” in …
Source: stackoverflow.com
Date Published: 8/15/2021
View: 5935
Image without contentDescription – Google Samples
res/layout/accessibility.xml:4:Warning: Missing `contentDescription` attribute on image [ContentDescription] Source: googlesamples.github.io Date Published: 10/23/2022 View: 9454 This defines text that briefly describes the content of the view. This property is used primarily for accessibility. Since some views do not have textual … Source: itecnote.com Date Published: 9/26/2021 View: 644 Imagine trying to go through a step-by-step gue with pictures you can’t see. The content description attribute links a text description to a … Source: www.deque.com Date Published: 9/2/2021 View: 1444 When using an ImageView , ImageButton , CheckBox , or other View that conveys information graphically, use an andro:contentDescription attribute to … Source: support.google.com Date Published: 8/10/2022 View: 2380 … contentdescription attribute on image · Missing `contentDescription` attribute on image · missing contentdescription attribute on image andro studio … Source: www.codegrepper.com Date Published: 9/12/2021 View: 7534 These were probably added to silence Lint warnings about (“Missing `contentDescription` attribute on image: ContentDescription [warning]”). These andro: … Source: bugs.chromium.org Date Published: 2/20/2022 View: 5378 Nhấp vào liên kết này để biết giải pháp: Nội dung Andro Lint Cảnh báo mô tả. Đã giải quyết cảnh báo này bằng cách đặt thuộc tính andro: … Source: helpex.vn Date Published: 12/14/2021 View: 4114 Describe each UI element · Don’t include the type of UI element in the content description. Screen readers automatically announce both the … Source: developer.android.com Date Published: 5/28/2022 View: 9808 주제와 관련된 더 많은 사진을 참조하십시오 Missing ContentDescription Attribute on Image | Image without content description | Warning Android. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다. The content description attribute links a text description to a control, ImageView, or other focusable object that otherwise has no text content. These objects wouldn’t be accessible without some some sort of label or description. When using an ImageView , ImageButton , CheckBox , or other View that conveys information graphically, use an android:contentDescription attribute to provide a content label for that View . A content label sometimes depends on information only available at runtime, or the meaning of a View might change over time. A content label is a visual and/or textual attachment to a piece of user-generated content intended to contextualize that content for the viewer. Examples of content labels are fact-checks or additional information. At their essence, content labels are simply information about information. Displays image resources, for example Bitmap or Drawable resources. ImageView is also commonly used to apply tints to an image and handle image scaling. Editable items in an app allow users to enter text. Each editable item should have a descriptive label stating its purpose. Android offers several ways for developers to label Views in an app’s user interface. For editable items in an interface, some of these ways of labeling can improve accessibility. A content provider manages access to a central repository of data. A provider is part of an Android application, which often provides its own UI for working with the data. However, content providers are primarily intended to be used by other applications, which access the provider using a provider client object. The Content Resolver behaves exactly as its name implies: it accepts requests from clients, and resolves these requests by directing them to the content provider with a distinct authority. To do this, the Content Resolver stores a mapping from authorities to Content Providers. ContentProvider is mainly used for access data from one application to another application. For example by using ContentProvider we can get phone contacts,call log from phone to our own application in android. we can also access data which are stored in (sqlite)databases. I get an warning about [Accessibility]Missing contentDescription attribute on image in eclipse. This warning show at line 5 (declare ImageView ) in XML code below. This not make any error when build and run my application. But I really want to know why i get this warning. This is my XML file: Please help me regarding this and thanks for your reading. Users of accessibility services, such as screen readers, rely on content labels to understand the meaning of elements in an interface. In some cases, such as when information is conveyed graphically within an element, content labels can provide a text description of the meaning or action associated with the element. If elements in a user interface don’t provide content labels, it can be difficult for some users to understand the information presented to them or to perform actions in the interface. Implementation When certain types of Views are used in an interface, they should provide content labels that describe the purpose or action associated with that View . How to provide content labels android:contentDescription When using an ImageView , ImageButton , CheckBox , or other View that conveys information graphically, use an android:contentDescription attribute to provide a content label for that View . A content label sometimes depends on information only available at runtime, or the meaning of a View might change over time. For example, a Play button might change to a Pause button during music playback. In these cases, use View#setContentDescription(CharSequence contentDescription) to update the content label at the appropriate time. Typically, when an accessibility service describes a ViewGroup , it combines content labels from it’s child Views . To override this behavior and indicate that you want to provide your own description for that item and its non-focusable child Views , set a contentDescription on the ViewGroup . You might need to include content labels from child Views within a contentDescription when set on a ViewGroup . android:hint For EditTexts or editable TextViews , use an android:hint attribute to indicate the purpose of the text field. An android:contentDescription should not be used as a content label for editable Views . android:labelFor Use an android:labelFor attribute to indicate that a View should act as a content label for another View . Cases that don’t require content labels In certain cases, content labels should not be specifically provided: Text rendered in TextView (or its subclasses) is automatically provided to accessibility services. Additional content labels are usually unnecessary. (or its subclasses) is automatically provided to accessibility services. Additional content labels are usually unnecessary. Decorative images or images that don’t convey meaningful information graphically do not require content labels. In these cases, set an android:contentDescription attribute of “@null” or an android:importantForAccessibility attribute of “no” . To learn more, read about implementing content labels in Android Developer Training and API Guides. Design When designing a user interface, think carefully about how graphically represented content should be labeled for users of accessibility services. Content labels should follow these principles: Be succinct and clearly describe the meaning or action associated with an element. Don’t include an element’s type or state in its content label. If the element is associated with an action, describe the action, not the graphical representation. Don’t instruct the user how to specifically interact with the element. To learn more, read Material Design Accessibility Writing Guidelines. Testing To manually verify that an app’s user interface isn’t missing content labels: Turn on TalkBack. Open the app. Use linear navigation gestures to move accessibility focus to each element on the screen. If TalkBack moves focus to some element, but doesn’t speak a meaningful representation of that element, or speaks an “unlabeled” message, that element might be missing a content label. Android’s automated testing tools can detect missing content labels. Consider using Accessibility Scanner for Android for manual testing of your app on-device. For automated tests, turn on accessibility checking in Espresso and Robolectric. (#) Image without `contentDescription` !!! WARNING: Image without `contentDescription` This is a warning. Id : `ContentDescription` Summary : Image without `contentDescription` Severity : Warning Category : Accessibility Platform : Android Vendor : Android Open Source Project Feedback : https://issuetracker.google.com/issues/new?component=192708 Affects : Resource files Editing : This check runs on the fly in the IDE editor See : https://developer.android.com/guide/topics/ui/accessibility/apps#special-cases Implementation : [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-checks/src/main/java/com/android/tools/lint/checks/AccessibilityDetector.java) Tests : [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-tests/src/test/java/com/android/tools/lint/checks/AccessibilityDetectorTest.java) Copyright Year : 2011 Non-textual widgets like ImageViews and ImageButtons should use the `contentDescription` attribute to specify a textual description of the widget such that screen readers and other accessibility tools can adequately describe the user interface. Note that elements in application screens that are purely decorative and do not provide any content or enable a user action should not have accessibility content descriptions. In this case, just suppress the lint warning with a tools:ignore=”ContentDescription” attribute. Note that for text fields, you should not set both the `hint` and the `contentDescription` attributes since the hint will never be shown. Just set the `hint`. !!! Tip This lint check has an associated quickfix available in the IDE. (##) Example Here is an example of lint warnings produced by this check: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~text res/layout/accessibility.xml:4:Warning: Missing `contentDescription` attribute on image [ContentDescription] accessibilityandroidandroid-imagevieweclipsewarnings I get an warning about [Accessibility]Missing contentDescription attribute on image in eclipse. This warning show at line 5 (declare ImageView ) in XML code below. This not make any error when build and run my application. But I really want to know why i get this warning. This is my XML file: Please help me regarding this and thanks for your reading. Users of accessibility services, such as screen readers, rely on content labels to understand the meaning of elements in an interface. In some cases, such as when information is conveyed graphically within an element, content labels can provide a text description of the meaning or action associated with the element. If elements in a user interface don’t provide content labels, it can be difficult for some users to understand the information presented to them or to perform actions in the interface. Implementation When certain types of Views are used in an interface, they should provide content labels that describe the purpose or action associated with that View . How to provide content labels android:contentDescription When using an ImageView , ImageButton , CheckBox , or other View that conveys information graphically, use an android:contentDescription attribute to provide a content label for that View . A content label sometimes depends on information only available at runtime, or the meaning of a View might change over time. For example, a Play button might change to a Pause button during music playback. In these cases, use View#setContentDescription(CharSequence contentDescription) to update the content label at the appropriate time. Typically, when an accessibility service describes a ViewGroup , it combines content labels from it’s child Views . To override this behavior and indicate that you want to provide your own description for that item and its non-focusable child Views , set a contentDescription on the ViewGroup . You might need to include content labels from child Views within a contentDescription when set on a ViewGroup . android:hint For EditTexts or editable TextViews , use an android:hint attribute to indicate the purpose of the text field. An android:contentDescription should not be used as a content label for editable Views . android:labelFor Use an android:labelFor attribute to indicate that a View should act as a content label for another View . Cases that don’t require content labels In certain cases, content labels should not be specifically provided: Text rendered in TextView (or its subclasses) is automatically provided to accessibility services. Additional content labels are usually unnecessary. (or its subclasses) is automatically provided to accessibility services. Additional content labels are usually unnecessary. Decorative images or images that don’t convey meaningful information graphically do not require content labels. In these cases, set an android:contentDescription attribute of “@null” or an android:importantForAccessibility attribute of “no” . To learn more, read about implementing content labels in Android Developer Training and API Guides. Design When designing a user interface, think carefully about how graphically represented content should be labeled for users of accessibility services. Content labels should follow these principles: Be succinct and clearly describe the meaning or action associated with an element. Don’t include an element’s type or state in its content label. If the element is associated with an action, describe the action, not the graphical representation. Don’t instruct the user how to specifically interact with the element. To learn more, read Material Design Accessibility Writing Guidelines. Testing To manually verify that an app’s user interface isn’t missing content labels: Turn on TalkBack. Open the app. Use linear navigation gestures to move accessibility focus to each element on the screen. If TalkBack moves focus to some element, but doesn’t speak a meaningful representation of that element, or speaks an “unlabeled” message, that element might be missing a content label. Android’s automated testing tools can detect missing content labels. Consider using Accessibility Scanner for Android for manual testing of your app on-device. For automated tests, turn on accessibility checking in Espresso and Robolectric. Tôi nhận được cảnh báo về [Trợ năng] Thiếu thuộc tính contentDescription trên hình ảnh trong nhật thực. Cảnh báo này hiển thị ở dòng 5 (khai báo ImageView ) trong mã XML bên dưới. Điều này không tạo ra bất kỳ lỗi nào khi xây dựng và chạy ứng dụng của tôi. Nhưng tôi thực sự muốn biết tại sao tôi nhận được cảnh báo này. Đây là tệp XML của tôi: Xin hãy giúp tôi về điều này và cảm ơn bạn đã đọc. Android apps should aim to be usable by everyone, including people with accessibility needs. People with impaired vision, color blindness, impaired hearing, impaired dexterity, cognitive disabilities, and many other disabilities use Android devices to complete tasks in their day-to-day lives. When you develop apps with accessibility in mind, you make the user experience better, particularly for users with these and other accessibility needs. This document presents guidelines for implementing key elements of accessibility so that everyone can use your app more easily. For more in-depth guidance on how to make your app more accessible, visit the principles for improving app accessibility page. Increase text visibility For each set of text within your app, the color contrast – or difference in perceived brightness between the color of the text and the color of the background behind the text – is recommended to be above a specific threshold. The exact threshold depends on the text’s font size and whether the text appears in bold: If the text is smaller than 18pt, or if the text is bold and smaller than 14pt, the color contrast ratio should be at least 4.5:1. For all other text, the color contrast ratio should be at least 3.0:1. The following image shows two examples of text-to-background color contrast: Figure 1. Lower than recommended (left) and sufficient (right) color contrast To check the text-to-background color contrast in your app, use an online color contrast checker or the Accessibility Scanner app. Use large, simple controls Your app’s UI is easier to use if it contains controls that are easier to see and tap. We recommend that each interactive UI element have a focusable area, or touch target size, of at least 48dp ✕ 48dp. Larger is even better. For a given UI element to have a large enough touch target size, the following conditions should both be true: The sum of the values of android:paddingLeft , android:minWidth , and android:paddingRight is greater than or equal to 48dp. , , and is greater than or equal to 48dp. The sum of the values of android:paddingTop , android:minHeight , and android:paddingBottom is greater than or equal to 48dp. The padding values allow an object’s visible size to be less than 48dp ✕ 48dp while still having the recommended touch target size. The following code snippet shows an element that has the recommended touch target size: Describe each UI element We recommend that each UI element in your app includes a description that describes the element’s purpose. In most cases, you include this description in the element’s contentDescription attribute, as shown in the following code snippet: Note: Don’t provide descriptions for TextView elements. Android accessibility services automatically announce the text itself as the description. When adding descriptions to your app’s UI elements, keep the following best practices in mind: Don’t include the type of UI element in the content description. Screen readers automatically announce both the element’s description and type. For example, if selecting a button causes a “submit” action to occur in your app, the button’s description should be “Submit” , not “Submit button” . Each description should be unique. That way, when screen reader users encounter a repeated element description, they correctly recognize that the focus is now on an element that has already had focus earlier. In particular, each item within a view group such as RecyclerView should have a different description. Each description should reflect the content that’s unique to a given item, such as the name of a city in a list of locations. If your UI includes graphical elements that are used for decorative effect only, set their descriptions to “@null” . If your app’s minSdkVersion is 16 or higher, you can instead set these graphical elements’ android:importantForAccessibility attributes to “no” . Additional resources To learn more about making your app more accessible, see the following additional resources: Codelabs Blog posts 다음은 Bing에서 missing content description android studio 주제에 대한 검색 결과입니다. 필요한 경우 더 읽을 수 있습니다. 이 기사는 인터넷의 다양한 출처에서 편집되었습니다. 이 기사가 유용했기를 바랍니다. 이 기사가 유용하다고 생각되면 공유하십시오. 매우 감사합니다! Missing #ContentDescription #Attribute #on #Image #| #Image #without #content #description #| #Warning #Android YouTube에서 missing content description android studio 주제의 다른 동영상 보기 주제에 대한 기사를 시청해 주셔서 감사합니다 Missing ContentDescription Attribute on Image | Image without content description | Warning Android | missing content description android studio, 이 기사가 유용하다고 생각되면 공유하십시오, 매우 감사합니다.Android – ‘Missing contentDescription attribute on image’ in XML
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missing contentdescription attribute on image Code Example
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‘Thiếu thuộc tính contentDescription trên hình ảnh’ trong XML
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주제와 관련된 이미지 missing content description android studio
주제에 대한 기사 평가 missing content description android studio
What is content description Android studio?
What is contentDescription in ImageView?
What is content labeling?
How do I use setImageResource on Android?
What is ImageView in Android?
What is label in Android?
What is the purpose of content provider in Android?
What is content provider in Android with example?
…
Abstract Method
Description
getType()
This method returns the Multipurpose Internet Mail Extension(MIME) type of data to the given Content URI.
What is content resolver in Android?
What is a ContentProvider and what is it typically used for?
‘Missing contentDescription attribute on image’ in XML
Android Accessibility Help
Android – ‘Missing contentDescription attribute on image’ in XML – iTecNote
Android Accessibility Help
‘Thiếu thuộc tính contentDescription trên hình ảnh’ trong XML
Make apps more accessible
키워드에 대한 정보 missing content description android studio
사람들이 주제에 대해 자주 검색하는 키워드 Missing ContentDescription Attribute on Image | Image without content description | Warning Android
