Sử dụng bộ sưu tập để sắp xếp ngăn nắp các trang
Lưu và phân loại nội dung dựa trên lựa chọn ưu tiên của bạn.
Chúng tôi đã bổ sung thêm các lựa chọn tuỳ chỉnh cho Android 12 để cải thiện trải nghiệm và khả năng tương thích trên các thiết bị TV. Một số điểm nổi bật của Android TV là những điểm cải tiến về khả năng phát nội dung nghe nhìn, các tính năng tinh tế hơn về giao diện người dùng, cũng như những điểm cải tiến về quyền riêng tư và bảo mật. Ngoài ra, chúng tôi sẽ giới thiệu các tiêu chuẩn tốt hơn để hỗ trợ và cải thiện HDMI cũng như bộ chỉnh.
Sau đây là thông tin tổng quan về những điểm mới trong Android 12 cho TV:
Hãy tham khảo tài liệu về Android 12 để xem danh sách đầy đủ các thay đổi có trong Android 12. Xin lưu ý rằng không phải tính năng nào cũng áp dụng cho TV.
Tải hình ảnh hệ thống xuống cho ADT-3 Developer Kit (Bộ công cụ dành cho nhà phát triển ADT-3) để bắt đầu.
Ngoài ra, bạn có thể sử dụng Trình mô phỏng Android cho TV. Trình mô phỏng này cho phép bạn dùng thử một số tính năng mới trên giao diện người dùng, chẳng hạn như hiệu ứng làm mờ nền và hỗ trợ giao diện người dùng 4K.
Cách bắt đầu
Nếu bạn có một thiết bị nhà phát triển ADT-3, thì thiết bị đó sẽ tự động nhận được bản cập nhật Android 12 qua mạng không dây. Ngoài ra, bạn có thể cài đặt Android 12 bằng cách làm theo các bước sau:
Bạn có thể tải hình ảnh hệ thống Android 12 mới nhất xuống rồi cài đặt ROM hình ảnh đó vào thiết bị thử nghiệm theo cách thủ công. Việc cài đặt ROM theo cách thủ công cho thiết bị giúp bạn kiểm soát chính xác môi trường kiểm thử và có thể được thực hiện bằng các công cụ dòng lệnh.
Trước khi tải xuống, bạn phải đồng ý với các điều khoản và điều kiện sau.
Ðiều khoản và điều kiện
By clicking to accept, you hereby agree to the following:
All use of this development version SDK will be governed by the Android Software
Development Kit License Agreement (available at
https://developer.android.com/studio/terms and such URL may be updated or
changed by Google from time to time), which will terminate when Google issues a
final release version.
Your testing and feedback are important part of the development process and by
using the SDK, you acknowledge that (i) implementation of some features are
still under development, (ii) you should not rely on the SDK having the full
functionality of a stable release; (iii) you agree not to publicly distribute or
ship any application using this SDK as this SDK will no longer be supported
after the official Android SDK is released; and (iv) you agree that Google may
deliver elements of the SDK to your devices via auto-update (OTA or otherwise,
in each case as determined by Google).
WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE
AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE
RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN
RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE
OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.
Trước khi tải xuống, bạn phải đồng ý với các điều khoản và điều kiện sau.
Ðiều khoản và điều kiện
By clicking to accept, you hereby agree to the following:
All use of this development version SDK will be governed by the Android Software
Development Kit License Agreement (available at
https://developer.android.com/studio/terms and such URL may be updated or
changed by Google from time to time), which will terminate when Google issues a
final release version.
Your testing and feedback are important part of the development process and by
using the SDK, you acknowledge that (i) implementation of some features are
still under development, (ii) you should not rely on the SDK having the full
functionality of a stable release; (iii) you agree not to publicly distribute or
ship any application using this SDK as this SDK will no longer be supported
after the official Android SDK is released; and (iv) you agree that Google may
deliver elements of the SDK to your devices via auto-update (OTA or otherwise,
in each case as determined by Google).
WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE
AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE
RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN
RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE
OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.
Nội dung và mã mẫu trên trang này phải tuân thủ các giấy phép như mô tả trong phần Giấy phép nội dung. Java và OpenJDK là nhãn hiệu hoặc nhãn hiệu đã đăng ký của Oracle và/hoặc đơn vị liên kết của Oracle.
Cập nhật lần gần đây nhất: 2025-07-27 UTC.
[null,null,["Cập nhật lần gần đây nhất: 2025-07-27 UTC."],[],[],null,["# Android 12 for TV\n\nWe've added more customizations to Android 12 to improve the experience and\ncompatibility on TV devices. Some of the highlights for\nTV are media playback improvements, more refined user interface capabilities,\nand privacy and security enhancements. In addition, we're introducing better\nstandards to support and improve HDMI and tuners.\n\nHere's an overview of what's new in Android 12 for TV:\n\n**Media**\n\n- Avoid motion judder during playback using [refresh rate\n switching](/training/tv/playback/framerate)\n- Certified API accuracy for reporting display modes, HDR formats, and surround sound formats\n\n**User interface**\n\n- Background blurs using [`RenderEffect`](/reference/android/graphics/RenderEffect) and in [`WindowManager`](/reference/android/view/WindowManager.LayoutParams)\n- [4K UI support](/training/tv/playback/leanback/layouts#density-resources)\n- [Accessibility settings for font sizes](/training/tv/accessibility#text_scaling)\n\n**Privacy and security**\n\n- [Microphone and camera indicators](/about/versions/12/behavior-changes-all#mic-camera-indicators)\n- [Microphone and camera toggles](/about/versions/12/behavior-changes-all#mic-camera-toggles)\n- [Device attestation via Android KeyStore API](/reference/java/security/KeyStore)\n\n**HDMI and tuner**\n\n- [Support for HDMI-CEC 2.0](https://source.android.com/devices/tv/hdmi-cec#cec20)\n- [Tuner HAL 1.1 with DTMB support and performance\n improvements](https://source.android.com/devices/tv/tuner-framework#features)\n- Better protection model with Tuner Service\n\nRefer to the [Android 12 documentation](/about/versions/12/summary) for a full\nlist of the changes included in Android 12. Note that not all features\napply to TV.\n\nDownload the system images for the [ADT-3 Developer\nKit](https://store.askey.com/adt-3.html) to get started.\nAlternatively, you can use the [Android Emulator for\nTV](/training/tv/get-started/create#run-on-a-virtual-device), which lets you try\nsome of the new user interface capabilities like background blurs and 4K UI\nsupport.\n\nHow to get started\n------------------\n\nIf you have an existing ADT-3 developer device, the device will automatically\nreceive an OTA to Android 12. Alternatively, you can install Android 12 by\nfollowing these steps:\n\n1. Use the [ADT-3 Developer Kit](https://store.askey.com/adt-3.html) for Android TV. The provided system image is for ADT-3 developer devices only.\n2. Download the system image.\n3. Install the system image on your ADT-3 device.\n\n| **Warning:** Once you successfully flash the ADT-3 to Android 12, you can't go back to the previous Android 11 build without wiping the user data.\n\nInstall system images manually\n------------------------------\n\nYou can download the latest Android 12 system image and manually flash it to\nyour test device. Manually flashing a device gives you precise control over the\ntest environment and can be performed with command line tools.\n\nAfter you back up your device data, download one of the following ADT-3 builds\nand then [flash the image onto your device](https://developers.google.com/android/images).\n\n### ADT-3 factory images\n\n| Device | Download Link | SHA-256 Checksum |\n|--------------------|--------------------------------------------------|--------------------------------------------------------------------|\n| ADT-3 (Android TV) | adt3-stt1.211025.001.z4-factory-9310b47c.zip | `9310b47c79570cb5a9916ac4f7fe383c62242afea64a2d389aa27ea4f9555a35` |\n| ADT-3 (Google TV) | adt3_gtv-stt1.211025.001.z3-factory-91f7efe7.zip | `91f7efe7cccfc507a80366c0edb32991df931620ecfc7d2aa765e7b233dc01f1` |\n\nDownload ADT-3 factory system image\n-----------------------------------\n\nBefore downloading, you must agree to the following terms and conditions. \n\nTerms and Conditions\n--------------------\n\nBy clicking to accept, you hereby agree to the following: \n\nAll use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. \n\nYour testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). \n\nWITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE. \nI have read and agree with the above terms and conditions \nDownload ADT-3 factory system image [Download ADT-3 factory system image](https://dl.google.com/developers/android/sc/images/factory/adt3-stt1.211025.001.z4-factory-9310b47c.zip)\n\n*adt3-stt1.211025.001.z4-factory-9310b47c.zip* \n\nDownload ADT-3 factory system image\n-----------------------------------\n\nBefore downloading, you must agree to the following terms and conditions. \n\nTerms and Conditions\n--------------------\n\nBy clicking to accept, you hereby agree to the following: \n\nAll use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. \n\nYour testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). \n\nWITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE. \nI have read and agree with the above terms and conditions \nDownload ADT-3 factory system image [Download ADT-3 factory system image](https://dl.google.com/developers/android/sc/images/factory/adt3_gtv-stt1.211025.001.z3-factory-91f7efe7.zip)\n\n*adt3_gtv-stt1.211025.001.z3-factory-91f7efe7.zip*"]]
