Loading core/java/android/provider/Settings.java +32 −10 Original line number Diff line number Diff line Loading @@ -5159,17 +5159,39 @@ public final class Settings { public static final String ALLOW_MOCK_LOCATION = "mock_location"; /** * A 64-bit number (as a hex string) that is randomly * On Android 8.0 (API level 26) and higher versions of the platform, * a 64-bit number (expressed as a hexadecimal string), unique to * each combination of app-signing key, user, and device. * Values of {@code ANDROID_ID} are scoped by signing key and user. * The value may change if a factory reset is performed on the * device or if an APK signing key changes. * * For more information about how the platform handles {@code ANDROID_ID} * in Android 8.0 (API level 26) and higher, see <a * href="{@docRoot}preview/behavior-changes.html#privacy-all"> * Android 8.0 Behavior Changes</a>. * * <p class="note"><strong>Note:</strong> For apps that were installed * prior to updating the device to a version of Android 8.0 * (API level 26) or higher, the value of {@code ANDROID_ID} changes * if the app is uninstalled and then reinstalled after the OTA. * To preserve values across uninstalls after an OTA to Android 8.0 * or higher, developers can use * <a href="{@docRoot}guide/topics/data/keyvaluebackup.html"> * Key/Value Backup</a>.</p> * * <p>In versions of the platform lower than Android 8.0 (API level 26), * a 64-bit number (expressed as a hexadecimal string) that is randomly * generated when the user first sets up the device and should remain * constant for the lifetime of the user's device. The value may * change if a factory reset is performed on the device. * <p class="note"><strong>Note:</strong> When a device has <a * href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">multiple users</a> * (available on certain devices running Android 4.2 or higher), each user appears as a * completely separate device, so the {@code ANDROID_ID} value is unique to each * user.</p> * * <p class="note"><strong>Note:</strong> If the caller is an Instant App the id is scoped * constant for the lifetime of the user's device. * * On devices that have * <a href="{@docRoot}about/versions/android-4.2.html#MultipleUsers"> * multiple users</a>, each user appears as a * completely separate device, so the {@code ANDROID_ID} value is * unique to each user.</p> * * <p class="note"><strong>Note:</strong> If the caller is an Instant App the ID is scoped * to the Instant App, it is generated when the Instant App is first installed and reset if * the user clears the Instant App. */ Loading Loading
core/java/android/provider/Settings.java +32 −10 Original line number Diff line number Diff line Loading @@ -5159,17 +5159,39 @@ public final class Settings { public static final String ALLOW_MOCK_LOCATION = "mock_location"; /** * A 64-bit number (as a hex string) that is randomly * On Android 8.0 (API level 26) and higher versions of the platform, * a 64-bit number (expressed as a hexadecimal string), unique to * each combination of app-signing key, user, and device. * Values of {@code ANDROID_ID} are scoped by signing key and user. * The value may change if a factory reset is performed on the * device or if an APK signing key changes. * * For more information about how the platform handles {@code ANDROID_ID} * in Android 8.0 (API level 26) and higher, see <a * href="{@docRoot}preview/behavior-changes.html#privacy-all"> * Android 8.0 Behavior Changes</a>. * * <p class="note"><strong>Note:</strong> For apps that were installed * prior to updating the device to a version of Android 8.0 * (API level 26) or higher, the value of {@code ANDROID_ID} changes * if the app is uninstalled and then reinstalled after the OTA. * To preserve values across uninstalls after an OTA to Android 8.0 * or higher, developers can use * <a href="{@docRoot}guide/topics/data/keyvaluebackup.html"> * Key/Value Backup</a>.</p> * * <p>In versions of the platform lower than Android 8.0 (API level 26), * a 64-bit number (expressed as a hexadecimal string) that is randomly * generated when the user first sets up the device and should remain * constant for the lifetime of the user's device. The value may * change if a factory reset is performed on the device. * <p class="note"><strong>Note:</strong> When a device has <a * href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">multiple users</a> * (available on certain devices running Android 4.2 or higher), each user appears as a * completely separate device, so the {@code ANDROID_ID} value is unique to each * user.</p> * * <p class="note"><strong>Note:</strong> If the caller is an Instant App the id is scoped * constant for the lifetime of the user's device. * * On devices that have * <a href="{@docRoot}about/versions/android-4.2.html#MultipleUsers"> * multiple users</a>, each user appears as a * completely separate device, so the {@code ANDROID_ID} value is * unique to each user.</p> * * <p class="note"><strong>Note:</strong> If the caller is an Instant App the ID is scoped * to the Instant App, it is generated when the Instant App is first installed and reset if * the user clears the Instant App. */ Loading
