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公司网站 开源,当阳市住房和城乡建设局网站,怎么做网页赚钱,o2o网站开发教程BluetoothHeadsetClient.java acceptCall 调用流程及日志分析 1. 完整的 acceptCall 调用流程 1.1 调用时序图 应用层 (App)↓ 1. 调用 acceptCall() 框架层 (BluetoothHeadsetClient.java)↓ 2. 通过Binder IPC 蓝牙服务进程 (HeadsetClientService)↓ 3. 状态机处理 HeadsetC…BluetoothHeadsetClient.java acceptCall 调用流程及日志分析1.完整的 acceptCall 调用流程1.1 调用时序图应用层 (App) ↓ 1. 调用 acceptCall() 框架层 (BluetoothHeadsetClient.java) ↓ 2. 通过Binder IPC 蓝牙服务进程 (HeadsetClientService) ↓ 3. 状态机处理 HeadsetClientStateMachine ↓ 4. JNI调用 本地层 (android_bluetooth_BluetoothHeadsetClient.cpp) ↓ 5. 协议栈接口 btif_hf_client ↓ 6. BTA层处理 bta_hf_client ↓ 7. 发送AT命令 蓝牙耳机设备2.详细的代码调用路径2.1 应用层调用// 应用代码BluetoothHeadsetClientheadsetClient;// 已初始化的客户端BluetoothDevicedevice;// 已连接的设备// 调用acceptCallbooleanresultheadsetClient.acceptCall(device,BluetoothHeadsetClient.CALL_ACCEPT_NONE);Log.d(App,acceptCall 调用结果: result);2.2 BluetoothHeadsetClient.java// frameworks/base/core/java/android/bluetooth/BluetoothHeadsetClient.javapublicbooleanacceptCall(BluetoothDevicedevice,intflag){if(DBG)log(acceptCall());finalIBluetoothHeadsetClientservicemService;if(servicenull){Log.w(TAG,Proxy not attached to service);if(DBG)log(Log.getStackTraceString(newThrowable()));returnfalse;}// 权限检查if(!checkBluetoothPermission()){returnfalse;}try{// 通过Binder调用服务端returnservice.acceptCall(device,flag);}catch(RemoteExceptione){Log.e(TAG,e.toString());}returnfalse;}3.完整的调用链路日志3.1 启用详细日志# 启用所有相关日志adb shell setprop log.tag.BluetoothHeadsetClient V adb shell setprop log.tag.HeadsetClientService V adb shell setprop log.tag.HeadsetClientStateMachine V adb shell setprop log.tag.HeadsetClientNativeInterface V adb shell setprop persist.bluetooth.btsnoopenabletrue# 清除旧日志adb logcat -c3.2 预期日志输出# 查看完整调用链adb logcat|grep-EacceptCall|HeadsetClient# 预期日志按时间顺序# 1. 应用层调用 D/BluetoothHeadsetClient: acceptCall() - device: XX:XX:XX:XX:XX:XX, flag: 1 # 2. Binder调用 D/HeadsetClientService: acceptCall() - device: XX:XX:XX:XX:XX:XX, flag: 1 # 3. 状态机处理 D/HeadsetClientStateMachine: acceptCall - device: XX:XX:XX:XX:XX:XX, flag: 1 D/HeadsetClientStateMachine: acceptCall: CurrentStateConnected # 4. 发送消息到状态机 D/HeadsetClientStateMachine: sendMessage(ACCEPT_CALL) # 5. 状态机处理消息 D/HeadsetClientStateMachine: processMessage: ACCEPT_CALL # 6. 调用Native接口 D/HeadsetClientStateMachine: acceptCall: Calling Native D/HeadsetClientNativeInterface: acceptCall: deviceXX:XX:XX:XX:XX:XX, flag1 # 7. JNI层 D/bt_hf_client: acceptCallNative: deviceXX:XX:XX:XX:XX:XX, flag1 # 8. 协议栈处理 D/btif_hf_client: btif_hf_client_at_cb: ATATA D/BTA_HF_CLIENT: BTA_HfClientAcceptCall # 9. 发送AT命令 D/BTA_HF_CLIENT: Send AT command: ATA # 10. 耳机响应 D/BTA_HF_CLIENT: AT response: OK # 11. 回调到Java层 D/HeadsetClientNativeInterface: onCallChange: call state changed D/HeadsetClientStateMachine: processCallChange: callId2, stateACTIVE # 12. 发送广播 D/HeadsetClientService: broadcastCallChanged: call stateACTIVE I/HeadsetClientService: ACTION_CALL_CHANGED broadcast sent # 13. 返回结果 D/BluetoothHeadsetClient: acceptCall returned: true4.实际代码跟踪4.1 HeadsetClientService.java// packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient/// HeadsetClientService.javaOverridepublicbooleanacceptCall(BluetoothDevicedevice,intflag){Log.d(TAG,acceptCall() - device: device, flag: flag);// 检查设备连接状态synchronized(mStateMachines){HeadsetClientStateMachinestateMachinemStateMachines.get(device);if(stateMachinenull){Log.w(TAG,acceptCall: device device not connected);returnfalse;}// 检查通话状态if(!hasIncomingCall(device)){Log.w(TAG,acceptCall: no incoming call for device device);returnfalse;}// 转发到状态机intresultstateMachine.acceptCall(flag);Log.d(TAG,acceptCall: resultresult);return(resultHeadsetClientStateMachine.RESULT_SUCCESS);}}privatebooleanhasIncomingCall(BluetoothDevicedevice){HeadsetClientStateMachinestateMachinemStateMachines.get(device);if(stateMachine!null){ListHeadsetClientCallcallsstateMachine.getCurrentCalls();for(HeadsetClientCallcall:calls){if(call.getState()HeadsetClientCall.CALL_STATE_INCOMING){returntrue;}}}returnfalse;}4.2 HeadsetClientStateMachine.java// packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient/// HeadsetClientStateMachine.javapublicintacceptCall(intflag){Log.d(TAG,acceptCall - flag: flag);// 检查当前状态if(getCurrentState()!mConnectedgetCurrentState()!mAudioOn){Log.w(TAG,acceptCall: wrong state: getCurrentStateName());returnRESULT_FAIL_WRONG_STATE;}// 获取当前来电HeadsetClientCallincomingCallnull;for(HeadsetClientCallcall:mCalls.values()){if(call.getState()HeadsetClientCall.CALL_STATE_INCOMING){incomingCallcall;break;}}if(incomingCallnull){Log.w(TAG,acceptCall: no incoming call found);returnRESULT_FAIL_NO_CALL;}// 发送消息到状态机MessagemsgobtainMessage(ACCEPT_CALL,flag,0,incomingCall);sendMessage(msg);returnRESULT_SUCCESS;}// 处理ACCEPT_CALL消息privateclassConnectedextendsState{OverridepublicbooleanprocessMessage(Messagemessage){switch(message.what){caseACCEPT_CALL:Log.d(TAG,processMessage: ACCEPT_CALL);HeadsetClientCallcall(HeadsetClientCall)message.obj;intflagmessage.arg1;// 调用Native接口if(!mNativeInterface.acceptCall(mDevice.getAddress(),flag)){Log.e(TAG,Native acceptCall failed);returnNOT_HANDLED;}// 更新通话状态call.setState(HeadsetClientCall.CALL_STATE_ACTIVE);broadcastCallChanged(call);Log.d(TAG,Call accepted successfully, callId: call.getId());returnHANDLED;}returnNOT_HANDLED;}}4.3 HeadsetClientNativeInterface.java// packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient/// HeadsetClientNativeInterface.javapublicbooleanacceptCall(Stringaddress,intflag){Log.d(TAG,acceptCall: addressaddress, flagflag);synchronized(mLock){if(!isNativeAvailable()){Log.e(TAG,Native interface not available);returnfalse;}byte[]addrUtils.getBytesFromAddress(address);returnacceptCallNative(addr,flag);}}privatenativebooleanacceptCallNative(byte[]address,intflag);5.JNI 层代码5.1 android_bluetooth_BluetoothHeadsetClient.cpp// frameworks/base/core/jni/android_bluetooth_BluetoothHeadsetClient.cppstaticjbooleanacceptCallNative(JNIEnv*env,jobject object,jbyteArray address,jint flag){ALOGV(%s,__FUNCTION__);if(!sBluetoothHfpClientInterface){ALOGE(HFP Client Interface is not initialized);returnJNI_FALSE;}jbyte*addrenv-GetByteArrayElements(address,NULL);if(!addr){ALOGE(Failed to get device address);returnJNI_FALSE;}RawAddress bd_addr;bd_addr.FromOctets((uint8_t*)addr);bt_status_t statussBluetoothHfpClientInterface-accept_call(bd_addr,(bthf_client_call_accept_t)flag);env-ReleaseByteArrayElements(address,addr,0);ALOGV(acceptCallNative: status%d,status);return(statusBT_STATUS_SUCCESS)?JNI_TRUE:JNI_FALSE;}6.底层协议栈日志6.1 btif_hf_client.cc// system/bt/btif/src/btif_hf_client.ccbt_status_tbtif_hf_client_accept_call(constRawAddressbd_addr,bthf_client_call_accept_t flag){BTIF_TRACE_DEBUG(%s: device%s, flag%d,__func__,bd_addr.ToString().c_str(),flag);btif_hf_client_cb_t*btif_hfbtif_hf_client_find_device_by_bda(bd_addr);if(btif_hfNULL){BTIF_TRACE_ERROR(%s: device not connected,__func__);returnBT_STATUS_NOT_READY;}// 检查是否有来电if(!btif_hf_client_has_incoming_call(btif_hf)){BTIF_TRACE_ERROR(%s: no incoming call,__func__);returnBT_STATUS_NOT_READY;}tBTA_HF_CLIENT_AT_CMD_TYPE at_cmd_typeBTA_HF_CLIENT_ATA;if(flagBTHF_CLIENT_CALL_ACCEPT_HOLD){at_cmd_typeBTA_HF_CLIENT_CHLD_0;}elseif(flagBTHF_CLIENT_CALL_ACCEPT_TERMINATE){at_cmd_typeBTA_HF_CLIENT_CHLD_1;}// 发送到BTA层BTA_HfClientAcceptCall(bd_addr,at_cmd_type);BTIF_TRACE_DEBUG(%s: success,__func__);returnBT_STATUS_SUCCESS;}7.调试工具脚本7.1 完整日志收集脚本#!/bin/bash# monitor_accept_call.shecho 开始监控 acceptCall 调用 echo时间:$(date)# 1. 启用所有相关日志echo启用调试日志...adb shell setprop log.tag.BluetoothHeadsetClient VERBOSE adb shell setprop log.tag.HeadsetClientService VERBOSE adb shell setprop log.tag.HeadsetClientStateMachine VERBOSE adb shell setprop log.tag.HeadsetClientNativeInterface VERBOSE adb shell setprop persist.bluetooth.btsnoopenabletrueadb shell setprop persist.bluetooth.btsnooppath /sdcard/btsnoop_hci.log adb shell setprop persist.bluetooth.btsnoopsize 0xffffffff# 2. 重启蓝牙服务echo重启蓝牙服务...adb shell stop bluetoothdsleep1adb shell start bluetoothdsleep2# 3. 清除旧日志echo清除日志缓存...adb logcat -c adb shell logcat -b all -c# 4. 开始监控echo开始监控日志...echo按 CtrlC 停止监控# 保存日志到文件LOG_FILEaccept_call_$(date%Y%m%d_%H%M%S).logecho日志保存到:$LOG_FILE# 监控所有相关日志adb logcat -v threadtime\|grep-EacceptCall|HeadsetClient|bt_hf|BTA_HF\|tee$LOG_FILE7.2 问题诊断脚本#!/bin/bash# diagnose_accept_call.shecho acceptCall 问题诊断 echo诊断时间:$(date)echo# 1. 检查蓝牙状态echo1. 蓝牙服务状态:adb shell dumpsys bluetooth_manager|grep-A5enabled stateecho# 2. 检查HFP客户端状态echo2. HFP客户端服务状态:adb shell dumpsys activityservicecom.android.bluetooth/.hfpclient.HeadsetClientServiceecho# 3. 查看已连接的设备echo3. 已连接的蓝牙设备:adb shell dumpsys bluetooth_manager|grep-A10Connected devicesecho# 4. 查看通话状态echo4. 当前通话状态:adb shell dumpsys bluetooth_manager|grep-A20Headset Clientecho# 5. 查看系统属性echo5. 蓝牙相关属性:adb shell getprop|grep-Ebluetooth|hfp|scoecho# 6. 查看进程状态echo6. 蓝牙相关进程:adb shellps|grep-Ebluetooth|btechoecho诊断完成8.常见问题的日志表现8.1 权限问题日志W/BluetoothHeadsetClient: acceptCall() - Missing BLUETOOTH_CONNECT permission W/ActivityManager: Permission Denial: android.permission.BLUETOOTH_CONNECT not granted8.2 设备未连接日志W/HeadsetClientService: acceptCall: device XX:XX:XX:XX:XX:XX not connected E/HeadsetClientStateMachine: acceptCall: device not in connected state8.3 无来电日志W/HeadsetClientService: acceptCall: no incoming call for device XX:XX:XX:XX:XX:XX E/btif_hf_client: btif_hf_client_accept_call: no incoming call8.4 音频未连接日志D/HeadsetClientStateMachine: acceptCall: Audio not connected, connecting audio first D/AudioManager: startBluetoothSco() D/HeadsetClientStateMachine: audioStateChanged: CONNECTING9.添加调试日志9.1 在代码中添加详细日志// 在HeadsetClientService中添加publicbooleanacceptCall(BluetoothDevicedevice,intflag){Log.d(TAG, acceptCall 开始 );Log.d(TAG,设备: device);Log.d(TAG,flag: flag);Log.d(TAG,调用栈: ,newThrowable());// 检查设备HeadsetClientStateMachinestateMachinemStateMachines.get(device);if(stateMachinenull){Log.e(TAG,设备未在状态机中注册);Log.d(TAG,已注册的设备: mStateMachines.keySet());returnfalse;}// 检查通话ListHeadsetClientCallcallsstateMachine.getCurrentCalls();Log.d(TAG,当前通话数: calls.size());for(HeadsetClientCallcall:calls){Log.d(TAG,通话: call);}// 继续原有逻辑...}10.日志分析工具10.1 Python 日志分析脚本#!/usr/bin/env python3# analyze_accept_call.pyimportrefromdatetimeimportdatetimedefanalyze_log_file(filename):withopen(filename,r,encodingutf-8)asf:linesf.readlines()accept_call_flows[]current_flow[]forlineinlines:ifacceptCallinline.lower():ifcurrent_flow:accept_call_flows.append(current_flow)current_flow[line]elifcurrent_flowandany(taginlinefortagin[HeadsetClient,bt_hf,BTA_HF,NativeInterface]):current_flow.append(line)ifcurrent_flow:accept_call_flows.append(current_flow)print(f找到{len(accept_call_flows)}次 acceptCall 调用)fori,flowinenumerate(accept_call_flows,1):print(f\n 调用 #{i})forj,lineinenumerate(flow,1):print(f{j:2d}.{line.strip()})# 分析结果successany(successinline.lower()forlineinflow)errorany(errorinline.lower()orfailinline.lower()forlineinflow)ifsuccess:print(结果: ✓ 成功)eliferror:print(结果: ✗ 失败)else:print(结果: ? 未知)if__name____main__:analyze_log_file(accept_call.log)通过以上完整的调用流程和日志分析您可以系统地排查acceptCall无反应的问题。关键是要查看每一层是否有相应的日志输出以及在哪里失败。