{"id":114522,"date":"2024-03-24T00:25:50","date_gmt":"2024-03-23T22:25:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vtoroj-predvaritelnyj-vypusk-android-15"},"modified":"2024-03-24T00:25:50","modified_gmt":"2024-03-23T22:25:55","slug":"vtoroj-predvaritelnyj-vypusk-android-15","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/vtoroj-predvaritelnyj-vypusk-android-15","title":{"rendered":"Second preview release of Android 15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Google has introduced the second test version of its open mobile platform, Android 15. The release of Android 15 is expected in the third quarter of 2024. To assess the new platform features, a pre-testing program has been proposed. Firmware builds are available for Pixel 6\/6a\/6 Pro, Pixel 7\/7a\/7 Pro, Pixel 8\/8a\/8 Pro, Pixel Fold, and Pixel Tablet. <\/p>\n
Changes in Android 15 Developer Preview 2 compared to the first preview version: <\/p>\n
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Applications can now utilize small auxiliary screens (Cover screens), found on some foldable smartphones like the Samsung Galaxy Z Flip. For instance, the auxiliary screen allows users to quickly answer calls, respond to messages, control the camera, and perform other actions without unfolding the device.
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The TextView widget now has the elegantTextHeight attribute enabled by default, which uses fonts with larger vertical spacing to enhance text readability instead of compact fonts.
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Capabilities for working through satellite communication channels have been expanded. New interface elements have been added to standardize the use of satellite communication. Applications can now determine the use of a satellite channel using the ServiceState.isUsingNonTerrestrialNetwork() method. Support for sending and receiving messages via satellite channels has been implemented in the SMS\/MMS interface.
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Work has been done to simplify the use of NFC-enabled phones for one-touch payments (tap to pay). Applications can switch the NFC adapter to monitoring mode, where the device accepts NFC requests and forwards them to a designated process for handling, but does not respond to or transmit data to NFC readers.\n
Significantly enhanced capabilities for PDF document rendering (API PdfRenderer) have been introduced. For example, tools for rendering password-protected files, displaying annotations, editing forms, searching within documents, and highlighting areas for copying via clipboard have been provided. Optimizations have been added to reduce resource consumption and speed up the viewing of local PDF files. The implementation of the PdfRenderer API has been moved to a separate module, which can be updated via Google Play and is not tied to the core platform.
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Improved capabilities for automatic language recognition and switching. Applications are provided with extended options for fine-tuning language switching during speech recognition. For instance, the EXTRA_LANGUAGE_SWITCH_INITIAL_ACTIVE_DURATION_TIME_MILLIS mode allows switching only at the beginning of the audio session, while the EXTRA_LANGUAGE_SWITCH_MATCH_SWITCHES mode cancels language switching after a certain number of switches, which may be required in situations where it is known in advance that only one language will be used in a session.\n
Tools are provided for flexible line break management. In the TextView widget, you can control the wrapping of groups of words or parts of words to another line for better readability using the <nobreak> and <nohyphen> tags. For example, in the line «The power and brains behind <nobreak>Pixel 8 Pro.<\\\/nobreak>», the phrase «Pixel 8 Pro» will always be displayed on the same line.
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The filtering capabilities of intent requests have been expanded. Using the UriRelativeFilterGroup class, rules can be set to block or allow requests based on the content of URL parameters and URL fragments. Filtering rules can also be specified through the new <uri-relative-filter-group> tag in the application manifest.\n
Support for the OpenJDK API has been expanded. For example, support for additional methods in Math and StrictMath classes, ordered collections and lists, the use of ByteBuffer in Deflater, and key updates has been added.\n
An API has been added that allows applications to determine screen recording activity. An application can set a callback handler that will be invoked if screen recording is turned on and the application window falls within the visible area. This feature allows warning users of recording when confidential information is displayed.\n
An ApplicationStartInfo API has been introduced, which provides information about the state at program startup. For example, it can be determined whether application components are cached (cold, warm, or hot states), how long different stages of startup took, what caused the startup, and identify metrics useful for optimizing startup speed.\n
The handling of the stopped state has been modified, where application execution is paused until related user action occurs. The new version provides capabilities for the application to define the cessation of the pause: handling the BOOT_COMPLETED message or using the ApplicationStartInfo.wasForceStopped() method.\n
In addition to the StorageStats.getAppBytes() method, which allows retrieving overall data about the size of the installed application, a new method StorageStats.getAppBytesByDataType() has been added, providing the ability to obtain separate information on the size of the APK package, compiled code, extracted, and generated data.\n
Changes have been made to the API for launching foreground services. A new type of foreground service has been added\u2014mediaProcessing\u2014which can be used for resource-intensive operations with multimedia content, such as transcoding from one format to another.\n
A new API has been proposed for working with the SQLite database engine, providing access to enhanced SQLite capabilities.\n
The ability to manage HDR headroom has been introduced (the ratio of the brightest white in an HDR image to the brightness of white in an image in standard dynamic range). To set the headroom, the setDesiredHdrHeadroom method has been added, allowing for brightness balancing when displaying content in SDR and HDR.
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Support for the CTA-2075 standard has been added, defining capabilities for volume normalization to prevent volume level changes for different content. Volume consistency is achieved by defining metadata about speaker characteristics and the volume of AAC audio content. A LoudnessCodecController object and OnLoudnessCodecUpdateListener method have been proposed for adjusting volume parameters before contacting the codec.\n
In AndroidX media3 ExoPlayer 1.0, the use of spatial audio for multichannel sound is enabled by default if spatial audio is supported on the device. The Virtualizer class has been deprecated, and instead, the Spatializer class should be used to define the behavior and capabilities of spatial audio.\n
The AutomaticZenRules class has been added, allowing applications to configure rules for applying the 'Do Not Disturb' mode and determining the situations when these rules should take effect. <\/ul>\n
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