New ComposePreference

And ComposePreferenceController.

So we can use Spa in Preferences based UI.

Bug: 280864229
Test: unit test
Change-Id: Ida6dc62b54de9513d014ad899a65876d3499a02c

res/layout/preference_compose.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2023 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.
+  -->
+
+<androidx.compose.ui.platform.ComposeView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content" />

src/com/android/settings/spa/preference/ComposePreference.kt

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2023 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.spa.preference
+
+import android.content.Context
+import android.util.AttributeSet
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.ComposeView
+import androidx.compose.ui.platform.ViewCompositionStrategy
+import androidx.preference.Preference
+import androidx.preference.PreferenceViewHolder
+import com.android.settings.R
+import com.android.settingslib.spa.framework.theme.SettingsTheme
+
+class ComposePreference @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    defStyleAttr: Int = 0,
+    defStyleRes: Int = 0,
+) : Preference(context, attrs, defStyleAttr, defStyleRes) {
+    var content: @Composable () -> Unit = {}
+
+    init {
+        layoutResource = R.layout.preference_compose
+    }
+
+    override fun onBindViewHolder(holder: PreferenceViewHolder) {
+        super.onBindViewHolder(holder)
+
+        (holder.itemView as ComposeView).apply {
+            setViewCompositionStrategy(ViewCompositionStrategy.DisposeOnViewTreeLifecycleDestroyed)
+            setContent {
+                SettingsTheme {
+                    content()
+                }
+            }
+        }
+    }
+}

src/com/android/settings/spa/preference/ComposePreferenceController.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 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.spa.preference
+
+import android.content.Context
+import androidx.compose.runtime.Composable
+import androidx.preference.PreferenceScreen
+import com.android.settings.core.BasePreferenceController
+
+abstract class ComposePreferenceController(context: Context, preferenceKey: String) :
+    BasePreferenceController(context, preferenceKey) {
+
+    private lateinit var preference: ComposePreference
+
+    override fun displayPreference(screen: PreferenceScreen) {
+        super.displayPreference(screen)
+        preference = screen.findPreference(preferenceKey)!!
+        preference.content = { Content() }
+    }
+
+    @Composable
+    abstract fun Content()
+}

tests/spa_unit/src/com/android/settings/spa/preference/ComposePreferenceControllerTest.kt

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 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.spa.preference
+
+import android.content.Context
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.onNodeWithText
+import androidx.preference.PreferenceManager
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class ComposePreferenceControllerTest {
+
+    @get:Rule
+    val composeTestRule = createComposeRule()
+
+    private val context: Context = ApplicationProvider.getApplicationContext()
+
+    private val controller = object : ComposePreferenceController(
+        context = context,
+        preferenceKey = TEST_KEY,
+    ) {
+        override fun getAvailabilityStatus() = AVAILABLE
+
+        @Composable
+        override fun Content() {
+            Text(TEXT)
+        }
+    }
+
+    private val preference = ComposePreference(context).apply {
+        key = TEST_KEY
+    }
+
+    private val preferenceScreen = PreferenceManager(context).createPreferenceScreen(context)
+        .apply { addPreference(preference) }
+
+    @Test
+    fun displayPreference() {
+        controller.displayPreference(preferenceScreen)
+
+        composeTestRule.setContent {
+            preference.content()
+        }
+        composeTestRule.onNodeWithText(TEXT).assertIsDisplayed()
+    }
+
+    private companion object {
+        const val TEST_KEY = "test_key"
+        const val TEXT = "Text"
+    }
+}

tests/spa_unit/src/com/android/settings/spa/preference/ComposePreferenceTest.kt

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 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.spa.preference
+
+import android.content.Context
+import androidx.compose.material3.Text
+import androidx.compose.ui.platform.ComposeView
+import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.onNodeWithText
+import androidx.preference.PreferenceViewHolder
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class ComposePreferenceTest {
+
+    @get:Rule
+    val composeTestRule = createComposeRule()
+
+    private val context: Context = ApplicationProvider.getApplicationContext()
+
+    private val preference = ComposePreference(context)
+
+    private val composeView = ComposeView(context)
+
+    @Test
+    fun onBindViewHolder() {
+        preference.content = {
+            Text(TEXT)
+        }
+
+        preference.onBindViewHolder(PreferenceViewHolder.createInstanceForTests(composeView))
+
+        composeTestRule.setContent {
+            composeView.Content()
+        }
+        composeTestRule.onNodeWithText(TEXT).assertIsDisplayed()
+    }
+
+    private companion object {
+        const val TEXT = "Text"
+    }
+}