fix: 首次提交

SettingsLib/DeviceStateRotationLock/src/com.android.settingslib.devicestate/PosturesHelper.kt

@@ -0,0 +1,60 @@
+/*
+ * 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.settingslib.devicestate
+
+import android.content.Context
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_FOLDED
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_HALF_FOLDED
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_UNFOLDED
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_UNKNOWN
+import android.provider.Settings.Secure.DeviceStateRotationLockKey
+import com.android.internal.R
+
+/** Helps to convert between device state and posture. */
+class PosturesHelper(context: Context) {
+
+    private val foldedDeviceStates =
+        context.resources.getIntArray(R.array.config_foldedDeviceStates)
+    private val halfFoldedDeviceStates =
+        context.resources.getIntArray(R.array.config_halfFoldedDeviceStates)
+    private val unfoldedDeviceStates =
+        context.resources.getIntArray(R.array.config_openDeviceStates)
+    private val rearDisplayDeviceStates =
+        context.resources.getIntArray(R.array.config_rearDisplayDeviceStates)
+
+    @DeviceStateRotationLockKey
+    fun deviceStateToPosture(deviceState: Int): Int {
+        return when (deviceState) {
+            in foldedDeviceStates -> DEVICE_STATE_ROTATION_KEY_FOLDED
+            in halfFoldedDeviceStates -> DEVICE_STATE_ROTATION_KEY_HALF_FOLDED
+            in unfoldedDeviceStates -> DEVICE_STATE_ROTATION_KEY_UNFOLDED
+            in rearDisplayDeviceStates -> DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY
+            else -> DEVICE_STATE_ROTATION_KEY_UNKNOWN
+        }
+    }
+
+    fun postureToDeviceState(@DeviceStateRotationLockKey posture: Int): Int? {
+        return when (posture) {
+            DEVICE_STATE_ROTATION_KEY_FOLDED -> foldedDeviceStates.firstOrNull()
+            DEVICE_STATE_ROTATION_KEY_HALF_FOLDED -> halfFoldedDeviceStates.firstOrNull()
+            DEVICE_STATE_ROTATION_KEY_UNFOLDED -> unfoldedDeviceStates.firstOrNull()
+            DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY -> rearDisplayDeviceStates.firstOrNull()
+            else -> null
+        }
+    }
+}