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Commit 095e3a83 authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "Remove allowBlocking from all BluetoothProfiles" am: aec9277e am:... 

Merge "Remove allowBlocking from all BluetoothProfiles" am: aec9277e am: 9509f2de am: f0f4e1d0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1927380

Change-Id: I7b19fbb89c320fd3a14d57faa9aa10065b23d708
parents 46638c1b f0f4e1d0

framework/java/android/bluetooth/BluetoothA2dp.java

+284 −227

File changed.

Preview size limit exceeded, changes collapsed.

framework/java/android/bluetooth/BluetoothA2dpSink.java

+113 −70
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 


package android.bluetooth;



import static android.bluetooth.BluetoothUtils.getSyncTimeout;



import android.Manifest;

import android.annotation.NonNull;

import android.annotation.RequiresPermission;
@@ -29,14 +31,16 @@ import android.bluetooth.annotations.RequiresLegacyBluetoothPermission; 
import android.compat.annotation.UnsupportedAppUsage;

import android.content.AttributionSource;

import android.content.Context;

import android.os.Binder;

import android.os.Build;

import android.os.IBinder;

import android.os.RemoteException;

import android.util.Log;



import com.android.modules.utils.SynchronousResultReceiver;



import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.TimeoutException;



/**

 * This class provides the public APIs to control the Bluetooth A2DP Sink
@@ -86,7 +90,7 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
                    "BluetoothA2dpSink", IBluetoothA2dpSink.class.getName()) {

                @Override

                public IBluetoothA2dpSink getServiceInterface(IBinder service) {

                    return IBluetoothA2dpSink.Stub.asInterface(Binder.allowBlocking(service));

                    return IBluetoothA2dpSink.Stub.asInterface(service);

                }

    };
@@ -140,16 +144,20 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
    public boolean connect(BluetoothDevice device) {

        if (DBG) log("connect(" + device + ")");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

        final boolean defaultValue = false;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)) {

            try {

                return service.connect(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return false;

                final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver();

                service.connect(device, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return false;

        return defaultValue;

    }



    /**
@@ -181,16 +189,20 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
    public boolean disconnect(BluetoothDevice device) {

        if (DBG) log("disconnect(" + device + ")");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

        final boolean defaultValue = false;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)) {

            try {

                return service.disconnect(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return false;

                final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver();

                service.disconnect(device, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return false;

        return defaultValue;

    }



    /**
@@ -204,17 +216,23 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
    public List<BluetoothDevice> getConnectedDevices() {

        if (VDBG) log("getConnectedDevices()");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled()) {

        final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled()) {

            try {

                final SynchronousResultReceiver<List<BluetoothDevice>> recv =

                        new SynchronousResultReceiver();

                service.getConnectedDevices(mAttributionSource, recv);

                return Attributable.setAttributionSource(

                        service.getConnectedDevices(mAttributionSource), mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return new ArrayList<BluetoothDevice>();

                        recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue),

                        mAttributionSource);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return new ArrayList<BluetoothDevice>();

        return defaultValue;

    }



    /**
@@ -228,18 +246,23 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
    public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) {

        if (VDBG) log("getDevicesMatchingStates()");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled()) {

        final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled()) {

            try {

                final SynchronousResultReceiver<List<BluetoothDevice>> recv =

                        new SynchronousResultReceiver();

                service.getDevicesMatchingConnectionStates(states, mAttributionSource, recv);

                return Attributable.setAttributionSource(

                        service.getDevicesMatchingConnectionStates(states, mAttributionSource),

                        recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue),

                        mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return new ArrayList<BluetoothDevice>();

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return new ArrayList<BluetoothDevice>();

        return defaultValue;

    }



    /**
@@ -251,18 +274,22 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
    @RequiresBluetoothConnectPermission

    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)

    public int getConnectionState(BluetoothDevice device) {

        if (VDBG) log("getState(" + device + ")");

        if (VDBG) log("getConnectionState(" + device + ")");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

        final int defaultValue = BluetoothProfile.STATE_DISCONNECTED;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)) {

            try {

                return service.getConnectionState(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return BluetoothProfile.STATE_DISCONNECTED;

                final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver();

                service.getConnectionState(device, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return BluetoothProfile.STATE_DISCONNECTED;

        return defaultValue;

    }



    /**
@@ -282,16 +309,21 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
    public BluetoothAudioConfig getAudioConfig(BluetoothDevice device) {

        if (VDBG) log("getAudioConfig(" + device + ")");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

        final BluetoothAudioConfig defaultValue = null;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)) {

            try {

                return service.getAudioConfig(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return null;

                final SynchronousResultReceiver<BluetoothAudioConfig> recv =

                        new SynchronousResultReceiver();

                service.getAudioConfig(device, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return null;

        return defaultValue;

    }



    /**
@@ -337,20 +369,22 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
            @ConnectionPolicy int connectionPolicy) {

        if (DBG) log("setConnectionPolicy(" + device + ", " + connectionPolicy + ")");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

            if (connectionPolicy != BluetoothProfile.CONNECTION_POLICY_FORBIDDEN

                    && connectionPolicy != BluetoothProfile.CONNECTION_POLICY_ALLOWED) {

                return false;

            }

        final boolean defaultValue = false;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)

                && (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN

                    || connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED)) {

            try {

                return service.setConnectionPolicy(device, connectionPolicy, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return false;

                final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver();

                service.setConnectionPolicy(device, connectionPolicy, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return false;

        return defaultValue;

    }



    /**
@@ -393,16 +427,20 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
    public @ConnectionPolicy int getConnectionPolicy(@NonNull BluetoothDevice device) {

        if (VDBG) log("getConnectionPolicy(" + device + ")");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

        final int defaultValue = BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)) {

            try {

                return service.getConnectionPolicy(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;

                final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver();

                service.getConnectionPolicy(device, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;

        return defaultValue;

    }



    /**
@@ -420,17 +458,22 @@ public final class BluetoothA2dpSink implements BluetoothProfile { 
            android.Manifest.permission.BLUETOOTH_PRIVILEGED,

    })

    public boolean isAudioPlaying(@NonNull BluetoothDevice device) {

        if (VDBG) log("isAudioPlaying(" + device + ")");

        final IBluetoothA2dpSink service = getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

        final boolean defaultValue = false;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)) {

            try {

                return service.isA2dpPlaying(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return false;

                final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver();

                service.isA2dpPlaying(device, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return false;

        return defaultValue;

    }



    /**

framework/java/android/bluetooth/BluetoothAvrcpController.java

+80 −55
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 


package android.bluetooth;



import static android.bluetooth.BluetoothUtils.getSyncTimeout;



import android.annotation.RequiresPermission;

import android.annotation.SdkConstant;

import android.annotation.SdkConstant.SdkConstantType;
@@ -23,13 +25,15 @@ import android.bluetooth.annotations.RequiresBluetoothConnectPermission; 
import android.bluetooth.annotations.RequiresLegacyBluetoothPermission;

import android.content.AttributionSource;

import android.content.Context;

import android.os.Binder;

import android.os.IBinder;

import android.os.RemoteException;

import android.util.Log;



import com.android.modules.utils.SynchronousResultReceiver;



import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.TimeoutException;



/**

 * This class provides the public APIs to control the Bluetooth AVRCP Controller. It currently
@@ -93,8 +97,7 @@ public final class BluetoothAvrcpController implements BluetoothProfile { 
                    "BluetoothAvrcpController", IBluetoothAvrcpController.class.getName()) {

                @Override

                public IBluetoothAvrcpController getServiceInterface(IBinder service) {

                    return IBluetoothAvrcpController.Stub.asInterface(

                            Binder.allowBlocking(service));

                    return IBluetoothAvrcpController.Stub.asInterface(service);

                }

    };
@@ -130,19 +133,24 @@ public final class BluetoothAvrcpController implements BluetoothProfile { 
    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)

    public List<BluetoothDevice> getConnectedDevices() {

        if (VDBG) log("getConnectedDevices()");

        final IBluetoothAvrcpController service =

                getService();

        if (service != null && isEnabled()) {

        final IBluetoothAvrcpController service = getService();

        final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled()) {

            try {

                final SynchronousResultReceiver<List<BluetoothDevice>> recv =

                        new SynchronousResultReceiver();

                service.getConnectedDevices(mAttributionSource, recv);

                return Attributable.setAttributionSource(

                        service.getConnectedDevices(mAttributionSource), mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return new ArrayList<BluetoothDevice>();

                        recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue),

                        mAttributionSource);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return new ArrayList<BluetoothDevice>();

        return defaultValue;

    }



    /**
@@ -153,20 +161,24 @@ public final class BluetoothAvrcpController implements BluetoothProfile { 
    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)

    public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) {

        if (VDBG) log("getDevicesMatchingStates()");

        final IBluetoothAvrcpController service =

                getService();

        if (service != null && isEnabled()) {

        final IBluetoothAvrcpController service = getService();

        final List<BluetoothDevice> defaultValue = new ArrayList<BluetoothDevice>();

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled()) {

            try {

                final SynchronousResultReceiver<List<BluetoothDevice>> recv =

                        new SynchronousResultReceiver();

                service.getDevicesMatchingConnectionStates(states, mAttributionSource, recv);

                return Attributable.setAttributionSource(

                        service.getDevicesMatchingConnectionStates(states, mAttributionSource),

                        recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue),

                        mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return new ArrayList<BluetoothDevice>();

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return new ArrayList<BluetoothDevice>();

        return defaultValue;

    }



    /**
@@ -177,18 +189,21 @@ public final class BluetoothAvrcpController implements BluetoothProfile { 
    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)

    public int getConnectionState(BluetoothDevice device) {

        if (VDBG) log("getState(" + device + ")");

        final IBluetoothAvrcpController service =

                getService();

        if (service != null && isEnabled() && isValidDevice(device)) {

        final IBluetoothAvrcpController service = getService();

        final int defaultValue = BluetoothProfile.STATE_DISCONNECTED;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled() && isValidDevice(device)) {

            try {

                return service.getConnectionState(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));

                return BluetoothProfile.STATE_DISCONNECTED;

                final SynchronousResultReceiver<Integer> recv = new SynchronousResultReceiver();

                service.getConnectionState(device, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return BluetoothProfile.STATE_DISCONNECTED;

        return defaultValue;

    }



    /**
@@ -201,17 +216,22 @@ public final class BluetoothAvrcpController implements BluetoothProfile { 
    public BluetoothAvrcpPlayerSettings getPlayerSettings(BluetoothDevice device) {

        if (DBG) Log.d(TAG, "getPlayerSettings");

        BluetoothAvrcpPlayerSettings settings = null;

        final IBluetoothAvrcpController service =

                getService();

        if (service != null && isEnabled()) {

        final IBluetoothAvrcpController service = getService();

        final BluetoothAvrcpPlayerSettings defaultValue = null;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled()) {

            try {

                settings = service.getPlayerSettings(device, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Error talking to BT service in getMetadata() " + e);

                return null;

                final SynchronousResultReceiver<BluetoothAvrcpPlayerSettings> recv =

                        new SynchronousResultReceiver();

                service.getPlayerSettings(device, mAttributionSource, recv);

                settings = recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        return settings;

        return defaultValue;

    }



    /**
@@ -222,18 +242,21 @@ public final class BluetoothAvrcpController implements BluetoothProfile { 
    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)

    public boolean setPlayerApplicationSetting(BluetoothAvrcpPlayerSettings plAppSetting) {

        if (DBG) Log.d(TAG, "setPlayerApplicationSetting");

        final IBluetoothAvrcpController service =

                getService();

        if (service != null && isEnabled()) {

        final IBluetoothAvrcpController service = getService();

        final boolean defaultValue = false;

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled()) {

            try {

                return service.setPlayerApplicationSetting(plAppSetting, mAttributionSource);

            } catch (RemoteException e) {

                Log.e(TAG, "Error talking to BT service in setPlayerApplicationSetting() " + e);

                return false;

                final SynchronousResultReceiver<Boolean> recv = new SynchronousResultReceiver();

                service.setPlayerApplicationSetting(plAppSetting, mAttributionSource, recv);

                return recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(defaultValue);

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

        return false;

        return defaultValue;

    }



    /**
@@ -245,18 +268,20 @@ public final class BluetoothAvrcpController implements BluetoothProfile { 
    public void sendGroupNavigationCmd(BluetoothDevice device, int keyCode, int keyState) {

        Log.d(TAG, "sendGroupNavigationCmd dev = " + device + " key " + keyCode + " State = "

                + keyState);

        final IBluetoothAvrcpController service =

                getService();

        if (service != null && isEnabled()) {

        final IBluetoothAvrcpController service = getService();

        if (service == null) {

            Log.w(TAG, "Proxy not attached to service");

            if (DBG) log(Log.getStackTraceString(new Throwable()));

        } else if (isEnabled()) {

            try {

                service.sendGroupNavigationCmd(device, keyCode, keyState, mAttributionSource);

                return;

            } catch (RemoteException e) {

                Log.e(TAG, "Error talking to BT service in sendGroupNavigationCmd()", e);

                final SynchronousResultReceiver recv = new SynchronousResultReceiver();

                service.sendGroupNavigationCmd(device, keyCode, keyState, mAttributionSource, recv);

                recv.awaitResultNoInterrupt(getSyncTimeout()).getValue(null);

                return;

            } catch (RemoteException | TimeoutException e) {

                Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));

            }

        }

        if (service == null) Log.w(TAG, "Proxy not attached to service");

    }



    private boolean isEnabled() {

framework/java/android/bluetooth/BluetoothCsipSetCoordinator.java

+131 −129

File changed.

Preview size limit exceeded, changes collapsed.

framework/java/android/bluetooth/BluetoothHeadset.java

+305 −235

File changed.

Preview size limit exceeded, changes collapsed.