Google Pixel 3A 64Gb+4Gb LTE [116/132] Alternate execution environments
![Google Pixel 3A 64Gb+4Gb LTE [116/132] Alternate execution environments](/views2/2006439/page116/bg74.png)
[C-0-1] MUST support the Android file access permissions model as defined in the
Security and Permissions reference .
9.4. Alternate Execution Environments
Device implementations MUST keep consistency of the Android security and permission model, even
if they include runtime environments that execute applications using some other software or
technology than the Dalvik Executable Format or native code. In other words:
[C-0-1] Alternate runtimes MUST themselves be Android applications, and abide by the
standard Android security model, as described elsewhere in section 9 .
[C-0-2] Alternate runtimes MUST NOT be granted access to resources protected by
permissions not requested in the runtime’s AndroidManifest.xml file via the < uses-permission >
mechanism.
[C-0-3] Alternate runtimes MUST NOT permit applications to make use of features
protected by Android permissions restricted to system applications.
[C-0-4] Alternate runtimes MUST abide by the Android sandbox model and installed
applications using an alternate runtime MUST NOT reuse the sandbox of any other app
installed on the device, except through the standard Android mechanisms of shared user
ID and signing certificate.
[C-0-5] Alternate runtimes MUST NOT launch with, grant, or be granted access to the
sandboxes corresponding to other Android applications.
[C-0-6] Alternate runtimes MUST NOT be launched with, be granted, or grant to other
applications any privileges of the superuser (root), or of any other user ID.
[C-0-7] When the .apk files of alternate runtimes are included in the system image of
device implementations, it MUST be signed with a key distinct from the key used to sign
other applications included with the device implementations.
[C-0-8] When installing applications, alternate runtimes MUST obtain user consent for the
Android permissions used by the application.
[C-0-9] When an application needs to make use of a device resource for which there is a
corresponding Android permission (such as Camera, GPS, etc.), the alternate runtime
MUST inform the user that the application will be able to access that resource.
[C-0-10] When the runtime environment does not record application capabilities in this
manner, the runtime environment MUST list all permissions held by the runtime itself
when installing any application using that runtime.
Alternate runtimes SHOULD install apps via the PackageManager into separate Android
sandboxes (Linux user IDs, etc.).
Alternate runtimes MAY provide a single Android sandbox shared by all applications using
the alternate runtime.
9.5. Multi-User Support
Android includes support for multiple users and provides support for full user isolation.
Device implementations MAY but SHOULD NOT enable multi-user if they use removable
media for primary external storage.
If device implementations include multiple users, they:
Page 116 of 132
Содержание
- Android 9 1
- Compatibility definition 1
- Android extensions 2
- Android library 2
- Api behavioral compatibility 2
- Api namespaces 2
- Automotive requirements 2
- Background restriction 2
- Device configurations 2
- Device types 2
- Document structure 2
- Handheld requirements 2
- Introduction 2
- Managed api compatibility 2
- Native api compatibility 2
- Runtime compatibility 2
- Soft api compatibility 2
- Software 2
- Tablet requirements 2
- Television requirements 2
- User interface compatibility 2
- Watch requirements 2
- Web compatibility 2
- Accessibility 3
- Application packaging compatibility 3
- Audio latency 3
- Audio playback 3
- Audio recording 3
- Capture for unprocessed 3
- Companion device pairing 3
- Developer options 3
- Developer tools 3
- Developer tools and options compatibility 3
- Device administration 3
- Display and graphics 3
- Hardware compatibility 3
- Heavyweight apps 3
- Instant apps 3
- Managed user support 3
- Media codecs 3
- Media ui 3
- Multimedia compatibility 3
- Musical instrument digital interface midi 3
- Network protocols 3
- Professional audio 3
- Quick settings 3
- Secure media 3
- Text to speech 3
- Tv input framework 3
- Video decoding 3
- Video encoding 3
- Cameras 4
- Data connectivity 4
- Input devices 4
- Memory and storage 4
- Pose sensor 4
- Sensors 4
- Contact us 5
- Document changelog 5
- Performance and power 5
- Security model compatibility 5
- Software compatibility testing 5
- Updatable software 5
- Document structure 6
- Introduction 6
- Requirement id 6
- Requirements by device type 6
- Device configurations 7
- Device types 7
- Handheld requirements 7
- Hardware 7
- Requirement id in section 2 7
- Multimedia 10
- Software 11
- Performance and power 12
- Security model 13
- Television requirements 13
- Hardware 14
- Multimedia 15
- Software 16
- Performance and power 17
- Hardware 18
- Multimedia 18
- Software 18
- Watch requirements 18
- Automotive requirements 19
- Hardware 19
- Performance and power 19
- Multimedia 22
- Software 22
- Performance and power 23
- Hardware 24
- Security model 24
- Software 24
- Tablet requirements 24
- Android extensions 25
- Android library 25
- Managed api compatibility 25
- Build parameters 26
- Permissions 26
- Soft api compatibility 26
- Intent compatibility 29
- Activities on secondary displays 31
- Application binary interfaces 32
- Native api compatibility 32
- Bit arm native code compatibility 33
- Browser compatibility 34
- Web compatibility 34
- Webview compatibility 34
- Api behavioral compatibility 35
- Api namespaces 36
- Background restriction 36
- Runtime compatibility 37
- Launcher home screen 39
- User interface compatibility 39
- Notifications 40
- Widgets 40
- Alerts and toasts 42
- Search 42
- Live wallpapers 43
- Themes 43
- Activity switching 44
- Input management 44
- Lock screen media control 44
- Location 45
- Multi windows 45
- Screen savers previously dreams 45
- Unicode and font 45
- Device administration 46
- Display cutout 46
- Device provisioning 47
- Managed profile support 48
- Accessibility 49
- Managed user support 49
- Text to speech 49
- Instant apps 50
- Media ui 50
- Quick settings 50
- Tv input framework 50
- Application packaging compatibility 51
- Companion device pairing 51
- Heavyweight apps 51
- Multimedia compatibility 52
- Audio decoding 53
- Audio encoding 53
- Media codecs 53
- Audio codecs details 54
- Image decoding 55
- Image encoding 55
- Image codecs details 56
- Video codecs 56
- Video codecs list 56
- Video encoding 57
- Mpeg 2 59
- Mpeg 4 59
- Video decoding 59
- H 65 hevc 60
- Audio recording 61
- Raw audio capture 61
- Capture for rerouting of playback 62
- Capture for voice recognition 62
- Audio effects 63
- Audio latency 63
- Audio output volume 63
- Audio playback 63
- Raw audio playback 63
- Network protocols 65
- Musical instrument digital interface midi 66
- Professional audio 66
- Secure media 66
- Capture for unprocessed 68
- Developer tools 69
- Developer tools and options compatibility 69
- Developer options 71
- Display and graphics 71
- Hardware compatibility 71
- Screen configuration 72
- D and 3d graphics acceleration 74
- Display metrics 74
- Screen orientation 74
- Legacy application compatibility mode 77
- Screen technology 77
- Secondary displays 77
- Input devices 78
- Keyboard 78
- Navigation keys 78
- Non touch navigation 78
- Touchscreen input 79
- Fake touch input 80
- Game controller support 81
- Remote control 82
- Sensors 82
- Accelerometer 83
- Magnetometer 84
- Gyroscope 86
- Barometer 87
- Photometer 87
- Thermometer 87
- High fidelity sensors 88
- Proximity sensor 88
- Biometric sensors 90
- Android automotive only sensors 92
- Data connectivity 93
- Pose sensor 93
- Telephony 93
- Ieee 802 1 wi fi 94
- Bluetooth 97
- Near field communications 98
- Minimum network capability 100
- Cameras 101
- Data saver 101
- Rear facing camera 101
- Secure elements 101
- Sync settings 101
- Front facing camera 102
- Camera api behavior 103
- External camera 103
- Camera orientation 104
- Memory and storage 104
- Application shared storage 105
- Minimum memory and storage 105
- Adoptable storage 106
- Usb peripheral mode 106
- Usb host mode 107
- Audio output 108
- Microphone 108
- Near ultrasound 109
- Virtual reality 110
- Virtual reality mode 110
- Virtual reality mode high performance 110
- File i o access performance 112
- Performance and power 112
- Power saving modes 112
- User experience consistency 112
- Consistent performance 113
- Power consumption accounting 113
- Permissions 114
- Security model compatibility 114
- Filesystem permissions 115
- Uid and process isolation 115
- Alternate execution environments 116
- Multi user support 116
- Premium sms warning 117
- Security features 117
- Privacy 119
- Recording 119
- Usage history 119
- Connectivity 120
- Data storage encryption 120
- Network traffic 120
- Direct boot 121
- File based encryption 121
- Device integrity 122
- Full disk encryption 122
- Keys and credentials 123
- Secure lock screen 124
- Strongbox 127
- Data deletion 128
- Safe boot mode 128
- Automotive vehicle system isolation 129
- Compatibility test suite 129
- Software compatibility testing 129
- Subscription plans 129
- Cts verifier 130
- Updatable software 130
- Changelog viewing tips 131
- Document changelog 131
- Contact us 132
Похожие устройства
- Honor 6X 32Gb Руководство по эксплуатации
- Google Pixel 3 64Gb+4Gb LTE Руководство по эксплуатации
- Honor 10 128Gb Phantom Руководство по эксплуатации
- BQ Trend Руководство по эксплуатации
- Huawei Р20 Pro Руководство по эксплуатации
- Meizu M8c 16Gb 2Gb Руководство по эксплуатации
- BQ Strike Power LTE Руководство по эксплуатации
- BQ Space Lite Руководство по эксплуатации
- BQ Space Руководство по эксплуатации
- BQ Next Руководство по эксплуатации
- BQ Strike LTE Руководство по эксплуатации
- BQ Strike Power Руководство по эксплуатации
- BQ Magic LTE Руководство по эксплуатации
- BQ Velvet Руководство по эксплуатации
- Xiaomi Redmimi Note 8 Pro 64Gb+6Gb Dual LTE Руководство по эксплуатации
- BQ Intense Руководство по эксплуатации
- BQ Rich Руководство по эксплуатации
- Xiaomi Redmimi Note 8 64Gb+4Gb Dual LTE Руководство по эксплуатации
- Xiaomi Redmimi Note 8 128Gb+4Gb Dual LTE Руководство по эксплуатации
- Oukitel WP7 128Gb+8Gb Dual LTE Руководство по эксплуатации