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tag1bdfffe3731b68609435328dc63d329df80380c0
taggerThe Android Open Source Project <initial-contribution@android.com>Fri Jan 31 14:57:22 2025 -0800
object9da753f892ebef1606bcd30e0686e0ae7ce6aaf7 
aml_mpr_351311140 (12873146,com.google.android.go.mediaprovider,com.google.android.mediaprovider)
commit9da753f892ebef1606bcd30e0686e0ae7ce6aaf7[log] [tgz]
authorAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Sun Nov 17 22:34:05 2024 +0000
committerAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Sun Nov 17 22:34:05 2024 +0000
tree1c88b39ad9b2862ae31b14cfb891714d99a31999
parenta78003332a3f0962f02b8240474fb4a3735a1609 [diff]
parentc03f1116cade83854a1fc4ef18bbae8375da6cfc [diff]
Snap for 12668534 from c03f1116cade83854a1fc4ef18bbae8375da6cfc to mainline-mediaprovider-release

Change-Id: Ibe0d45f348824ef303d57800de8568bd57ae8b3a
tree: 1c88b39ad9b2862ae31b14cfb891714d99a31999
  1. .github/
  2. gradle/
  3. src/
  4. .gitignore
  5. Android.bp
  6. build.gradle
  7. gradle.properties
  8. gradlew
  9. gradlew.bat
  10. LICENSE
  11. METADATA
  12. MODULE_LICENSE_APACHE2
  13. OWNERS
  14. README.md
README.md

Accessibility Test Framework for Android

To help people with disabilities access Android apps, developers of those apps need to consider how their apps will be presented to accessibility services. Some good practices can be checked by automated tools, such as if a View has a contentDescription. Other rules require human judgment, such as whether or not a contentDescription makes sense to all users.

For more information about Mobile Accessibility, see http://www.w3.org/WAI/mobile/.

This library collects various accessibility-related checks on View objects as well as AccessibilityNodeInfo objects (which the Android framework derives from Views and sends to AccessibilityServices).

Building the Library

The supplied gradle wrapper and build.gradle file can be used to build the Accessibility Test Framework or import the project into Android Studio.

$ ./gradlew build

Sample Usage

Given a view, the following code runs all accessibility checks on all views in the hierarchy rooted at that view and throws an exception if any errors are found:

ImmutableSet<AccessibilityHierarchyCheck> checks =
    AccessibilityCheckPreset.getAccessibilityHierarchyChecksForPreset(
        AccessibilityCheckPreset.LATEST);
AccessibilityHierarchyAndroid hierarchy = AccessibilityHierarchyAndroid.newBuilder(view).build();
List<AccessibilityHierarchyCheckResult> results = new ArrayList<>();
for (AccessibilityHierarchyCheck check : checks) {
  results.addAll(check.runCheckOnHierarchy(hierarchy));
}
List<AccessibilityHierarchyCheckResult> errors =
    AccessibilityCheckResultUtils.getResultsForType(
        results, AccessibilityCheckResultType.ERROR);
if (!errors.isEmpty()) {
  throw new RuntimeException(errors.get(0).getMessage().toString());
}