Add implementation for unimplemented APIs and add description for return value

1. Add implementation for getCodecStatus(), setCodecConfigPreference() and isCodecConfigSelectable()
2. Add description for the return value of getCodecLocalCapabilities() and getCodecSelectableCapabilities()

Tag: #refactor
Bug: 219875113
Test: atest BluetoothInstrumentationTests
Change-Id: Ida32ff52990d2c062ef9f5cc965e20af030896bd

1 files changed, 16 insertions, 2 deletions

diff --git a/framework/java/android/bluetooth/BluetoothLeAudioCodecStatus.java b/framework/java/android/bluetooth/BluetoothLeAudioCodecStatus.java
index dea0642041..399ffa743c 100644
--- a/framework/java/android/bluetooth/BluetoothLeAudioCodecStatus.java
+++ b/framework/java/android/bluetooth/BluetoothLeAudioCodecStatus.java
@@ -109,8 +109,15 @@ public final class BluetoothLeAudioCodecStatus implements Parcelable {
      * @return {@code true} if the codec config matches, {@code false} otherwise
      */
     public boolean isCodecConfigSelectable(@Nullable BluetoothLeAudioCodecConfig codecConfig) {
-        // TODO: Add the implementation to check the config is selectable
-        return true;
+        if (codecConfig == null) {
+            return false;
+        }
+        for (BluetoothLeAudioCodecConfig selectableConfig : mCodecsSelectableCapabilities) {
+            if (codecConfig.equals(selectableConfig)) {
+                return true;
+            }
+        }
+        return false;
     }
 
     /**
@@ -171,6 +178,8 @@ public final class BluetoothLeAudioCodecStatus implements Parcelable {
 
     /**
      * Returns the current codec configuration.
+     *
+     * @return The current codec config.
      */
     public @Nullable BluetoothLeAudioCodecConfig getCodecConfig() {
         return mCodecConfig;
@@ -178,6 +187,8 @@ public final class BluetoothLeAudioCodecStatus implements Parcelable {
 
     /**
      * Returns the codecs local capabilities.
+     *
+     * @return The list of codec config that supported by the local system.
      */
     public @NonNull List<BluetoothLeAudioCodecConfig> getCodecLocalCapabilities() {
         return (mCodecsLocalCapabilities == null)
@@ -186,6 +197,9 @@ public final class BluetoothLeAudioCodecStatus implements Parcelable {
 
     /**
      * Returns the codecs selectable capabilities.
+     *
+     * @return The list of codec config that supported by both of the local system and
+     * remote devices.
      */
     public @NonNull List<BluetoothLeAudioCodecConfig> getCodecSelectableCapabilities() {
         return (mCodecsSelectableCapabilities == null)