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-- README for frameworks/opt/telephony --
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This directory contains telephony libraries which function as the
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implementation code for APIs in TelephonyManager, SubscriptionManager,
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SmsManager and others.
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These libraries run in the com.android.phone process and exist to support
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telephony services created by the user’s apps (generally carrier apps), or by
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the system. This includes making phone calls, sending SMS/MMS, and connecting
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to data. Many APIs are plumbed down to the radio through HIDL calls defined in
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hardware/interfaces/radio/ hardware/interfaces/radio/config and return values
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that are sent back up as responses.
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We define several AIDL interfaces in frameworks/base/telephony/ which we
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implement in this directory and packages/services/Telephony. This IPC scheme
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allows us to run public API code in the calling process, while the
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telephony-related code runs in the privileged com.android.phone process. Such
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implementations include PhoneInterfaceManager, SubscriptionController and
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others.
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The declaration of the com.android.phone process is in
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packages/services/telephony and the top-level application class is PhoneApp,
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which initializes everything else.
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-- Testing --
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Unit tests are found in frameworks/opt/telephony/tests and can be
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run on a device connected through ADB with the command:
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atest FrameworksTelephonyTests
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Tests can also be run individually or by class:
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atest <testClassName
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atest <testClassName>#<testMethodName>
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For more on atest run `atest --help`
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