[Expressive design] Add IntroPreference (b503c936) · Commits · e / os / android_frameworks_base

packages/SettingsLib/Android.bp

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		@@ -42,6 +42,7 @@ android_library {
		"SettingsLibFooterPreference",
		"SettingsLibHelpUtils",
		"SettingsLibIllustrationPreference",
		"SettingsLibIntroPreference",
		"SettingsLibLayoutPreference",
		"SettingsLibMainSwitchPreference",
		"SettingsLibProfileSelector",

packages/SettingsLib/IntroPreference/Android.bp

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		package {
		// See: http://go/android-license-faq
		// A large-scale-change added 'default_applicable_licenses' to import
		// all of the 'license_kinds' from "frameworks_base_license"
		// to get the below license kinds:
		// SPDX-license-identifier-Apache-2.0
		default_applicable_licenses: ["frameworks_base_license"],
		}

		android_library {
		name: "SettingsLibIntroPreference",
		use_resource_processor: true,
		defaults: [
		"SettingsLintDefaults",
		],

		srcs: [
		"src/*/.java",
		"src/*/.kt",
		],
		resource_dirs: ["res"],

		static_libs: [
		"androidx.preference_preference",
		"SettingsLibSettingsTheme",
		],

		sdk_version: "system_current",
		min_sdk_version: "21",
		apex_available: [
		"//apex_available:platform",
		],
		}

packages/SettingsLib/IntroPreference/AndroidManifest.xml

0 → 100644

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		<?xml version="1.0" encoding="utf-8"?>
		<!--
		Copyright (C) 2024 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.
		-->

		<manifest xmlns:android="http://schemas.android.com/apk/res/android"
		package="com.android.settingslib.widget.preference.intro">

		<uses-sdk android:minSdkVersion="21" />

		</manifest>

packages/SettingsLib/IntroPreference/res/layout/settingslib_expressive_preference_intro.xml

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		<?xml version="1.0" encoding="utf-8"?>
		<!--
		Copyright (C) 2024 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.
		-->

		<RelativeLayout
		xmlns:android="http://schemas.android.com/apk/res/android"
		android:id="@+id/entity_header"
		style="@style/SettingsLibEntityHeader">

		<LinearLayout
		android:id="@+id/entity_header_content"
		style="@style/SettingsLibEntityHeaderContent">

		<ImageView
		android:id="@android:id/icon"
		android:src="@drawable/settingslib_arrow_drop_down"
		style="@style/SettingsLibEntityHeaderIcon"/>

		<TextView
		android:id="@android:id/title"
		android:text="Title"
		style="@style/SettingsLibEntityHeaderTitle"/>

		<com.android.settingslib.widget.CollapsableTextView
		android:id="@+id/collapsable_summary"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:gravity="center"/>

		</LinearLayout>

		</RelativeLayout>

packages/SettingsLib/IntroPreference/src/com/android/settingslib/widget/IntroPreference.kt

0 → 100644

+102 −0

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		/*
		* Copyright (C) 2024 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.settingslib.widget

		import android.content.Context
		import android.os.Build
		import android.util.AttributeSet
		import androidx.annotation.RequiresApi
		import androidx.preference.Preference
		import androidx.preference.PreferenceViewHolder
		import com.android.settingslib.widget.preference.intro.R

		class IntroPreference @JvmOverloads constructor(
		context: Context,
		attrs: AttributeSet? = null,
		defStyleAttr: Int = 0,
		defStyleRes: Int = 0
		) : Preference(context, attrs, defStyleAttr, defStyleRes) {

		private var isCollapsable: Boolean = false
		private var minLines: Int = 2

		init {
		layoutResource = R.layout.settingslib_expressive_preference_intro
		isSelectable = false

		initAttributes(context, attrs, defStyleAttr)
		}

		private fun initAttributes(context: Context, attrs: AttributeSet?, defStyleAttr: Int) {
		context.obtainStyledAttributes(
		attrs,
		COLLAPSABLE_TEXT_VIEW_ATTRS, defStyleAttr, 0
		).apply {
		isCollapsable = getBoolean(IS_COLLAPSABLE, false)
		minLines = getInt(
		MIN_LINES,
		if (isCollapsable) DEFAULT_MIN_LINES else DEFAULT_MAX_LINES
		).coerceIn(1, DEFAULT_MAX_LINES)
		recycle()
		}
		}

		override fun onBindViewHolder(holder: PreferenceViewHolder) {
		super.onBindViewHolder(holder)
		holder.isDividerAllowedBelow = false
		holder.isDividerAllowedAbove = false

		(holder.findViewById(R.id.collapsable_summary) as? CollapsableTextView)?.apply {
		setCollapsable(isCollapsable)
		setMinLines(minLines)
		setText(summary.toString())
		}
		}

		/**
		* Sets whether the summary is collapsable.
		* @param collapsable True if the summary should be collapsable, false otherwise.
		*/
		@RequiresApi(Build.VERSION_CODES.VANILLA_ICE_CREAM)
		fun setCollapsable(collapsable: Boolean) {
		isCollapsable = collapsable
		minLines = if (isCollapsable) DEFAULT_MIN_LINES else DEFAULT_MAX_LINES
		notifyChanged()
		}

		/**
		* Sets the minimum number of lines to display when collapsed.
		* @param lines The minimum number of lines.
		*/
		@RequiresApi(Build.VERSION_CODES.VANILLA_ICE_CREAM)
		fun setMinLines(lines: Int) {
		minLines = lines.coerceIn(1, DEFAULT_MAX_LINES)
		notifyChanged()
		}

		companion object {
		private const val DEFAULT_MAX_LINES = 10
		private const val DEFAULT_MIN_LINES = 2

		private val COLLAPSABLE_TEXT_VIEW_ATTRS =
		com.android.settingslib.widget.theme.R.styleable.CollapsableTextView
		private val MIN_LINES =
		com.android.settingslib.widget.theme.R.styleable.CollapsableTextView_android_minLines
		private val IS_COLLAPSABLE =
		com.android.settingslib.widget.theme.R.styleable.CollapsableTextView_isCollapsable
		}
		}
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