development: Add dev toggle to enable verbose logs for printing (06395d61) · Commits · e / os / android_packages_apps_Settings

aconfig/development/settings_core_flag_declarations.aconfig

+7 −0

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		@@ -7,3 +7,10 @@ flag {
		description: "Feature flag for deprecating ListActivity in Settings"
		bug: "299195099"
		}

		flag {
		name: "enable_print_debug_option"
		namespace: "printing"
		description: "Feature flag for developer option that enables printing debug logs"
		bug: "397418860"
		}
		No newline at end of file

res/values/strings.xml

+4 −0

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		@@ -2143,6 +2143,10 @@
		<!-- Title of item to let user know the bluetooth key is missing [CHAR LIMIT=NONE]-->
		<string name="device_details_key_missing_title">Try restarting <xliff:g id="device_name">%1$s</xliff:g>. If that doesn’t work, forget the device. For your security, only pair it again when you aren’t in a public space.\n\nIf this device isn’t nearby, you don’t need to do anything.</string>

		<!-- Title for a toggle that enables additional logs for printing [CHAR LIMIT=NONE]-->
		<string name="verbose_printer_logging_title">Verbose print logging</string>
		<!-- Summary for a toggle that enables additional logs for printing [CHAR LIMIT=NONE]-->
		<string name="verbose_printer_logging_summary">Additional debug logs, including Internet Printing Protocol (IPP) that may contain private information.</string>

		<!-- Bluetooth device details. In the confirmation dialog for unpairing a paired device, this is the label on the button that will complete the unpairing action. -->
		<string name="bluetooth_unpair_dialog_forget_confirm_button">Forget device</string>

res/xml/development_settings.xml

+5 −0

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		@@ -217,6 +217,11 @@
		android:title="@string/enable_verbose_vendor_logging"
		android:summary="@string/enable_verbose_vendor_logging_summary" />

		<SwitchPreferenceCompat
		android:key="verbose_printer_logging"
		android:summary="@string/verbose_printer_logging_summary"
		android:title="@string/verbose_printer_logging_title" />

		<SwitchPreferenceCompat
		android:key="automatic_system_server_heap_dumps"
		android:title="@string/automatic_system_heap_dump_title"

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -824,6 +824,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
		controllers.add(new AutofillCategoryController(context, lifecycle));
		controllers.add(new AutofillLoggingLevelPreferenceController(context, lifecycle));
		controllers.add(new AutofillResetOptionsPreferenceController(context));
		controllers.add(new PrintVerboseLoggingController(context));
		controllers.add(
		new BluetoothCodecListPreferenceController(
		context, lifecycle, bluetoothA2dpConfigStore, fragment));

src/com/android/settings/development/PrintVerboseLoggingPreferenceController.kt

0 → 100644

+78 −0

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		/*
		* Copyright (C) 2025 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.settings.development

		import android.content.Context
		import android.os.SystemProperties
		import android.util.Log
		import androidx.annotation.VisibleForTesting
		import androidx.preference.Preference
		import androidx.preference.TwoStatePreference
		import com.android.settings.core.PreferenceControllerMixin
		import com.android.settingslib.development.DeveloperOptionsPreferenceController

		class PrintVerboseLoggingController(val context: Context) :
		DeveloperOptionsPreferenceController(context),
		Preference.OnPreferenceChangeListener,
		PreferenceControllerMixin {

		private val TAG = "PrintVerboseLoggingController"

		companion object {
		@VisibleForTesting val PRINT_DEBUG_LOG_PROP = "debug.printing.logs.enabled"

		@VisibleForTesting val PRINT_DEBUG_LOG_PROP_ENABLED = "true"

		@VisibleForTesting val PRINT_DEBUG_LOG_PROP_DISABLED = "false"
		}

		override fun getPreferenceKey(): String = "verbose_printer_logging"

		override fun onPreferenceChange(pref: Preference, newValue: Any): Boolean {
		if (newValue !is Boolean) {
		Log.e(TAG, "Given non bool newValue: " + newValue)
		return false
		}
		if (newValue) {
		SystemProperties.set(PRINT_DEBUG_LOG_PROP, PRINT_DEBUG_LOG_PROP_ENABLED)
		} else {
		SystemProperties.set(PRINT_DEBUG_LOG_PROP, PRINT_DEBUG_LOG_PROP_DISABLED)
		}
		return true
		}

		override fun updateState(preference: Preference) {
		super.updateState(preference)
		if (preference !is TwoStatePreference) {
		// This should never happen.
		Log.e(TAG, "Given non TwoStatePreference: " + preference)
		return
		}
		preference.setChecked(
		PRINT_DEBUG_LOG_PROP_ENABLED.equals(SystemProperties.get(PRINT_DEBUG_LOG_PROP))
		)
		}

		override public fun onDeveloperOptionsSwitchDisabled() {
		super.onDeveloperOptionsSwitchDisabled()
		SystemProperties.set(PRINT_DEBUG_LOG_PROP, PRINT_DEBUG_LOG_PROP_DISABLED)
		}

		override fun isAvailable(): Boolean {
		return Flags.enablePrintDebugOption()
		}
		}