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android开发---9.framework层的java应用接口demo

分类： Android平台

2015-01-29 11:14:28

一.server层的代码
1.1 server_main.cpp
  1. #define LOG_TAG "MYSERVER"

  3. #include <fcntl.h>
  4. #include <sys/prctl.h>
  5. #include <sys/wait.h>
  6. #include <binder/IPCThreadState.h>
  7. #include <binder/ProcessState.h>
  8. #include <binder/IServiceManager.h>
  9. #include <cutils/properties.h>
  10. #include <utils/Log.h>

  12. #include "DataService.h"

  14. using namespace android;

  16. int main(int argc, char** argv)
  17. {
  18.     sp<ProcessState> proc(ProcessState::self());
  19.     sp<IServiceManager> sm = defaultServiceManager();
  20.     SLOGD("ServiceManager: %p", sm.get());
  21.     DataService::instantiate();
  22.     ProcessState::self()->startThreadPool();
  23.     IPCThreadState::self()->joinThreadPool();
  24.     return 0;
  25. }

1.2

1.2.1
  1. cong@msi:/work/frameworks/myserver/server$ cat IDataService.h
  2. #ifndef ANDROID_IMOUSE_INJECT_H_FOR_APP
  3. #define ANDROID_IMOUSE_INJECT_H_FOR_APP

  5. #include <utils/Errors.h>
  6. #include <utils/KeyedVector.h>
  7. #include <utils/RefBase.h>
  8. #include <utils/String8.h>
  9. #include <binder/IInterface.h>
  10. #include <binder/Parcel.h>

  12. namespace android {
  13. class IDataService: public IInterface
  14. {
  15. public:
  16.     enum{
  17.         SET_MOUSE_POS = IBinder::FIRST_CALL_TRANSACTION,
  18.         READ__DATA,
  19.         WRITE__DATA,
  20.         AT_CREAT_NETWORK,
  21.         AT_SEND,
  22.         AT_RECV,
  23.         ADD_LISTENER,
  24.         REMOVE_LISTENER,
  25.     };
  26.     DECLARE_META_INTERFACE(DataService);
  27. };

  29. class BnDataService: public BnInterface<IDataService>
  30. {
  31. public:
  32.     virtual status_t onTransact( uint32_t code,
  33.                                     const Parcel& data,
  34.                                     Parcel* reply,
  35.                                     uint32_t flags = 0);
  36.     virtual int32_t setSpritePosition(int x, int y) = 0;
  37.     virtual int32_t readData(char* buf)=0;
  38.     virtual int32_t writeData(char* buf, int c)=0;
  39. };

  41. };

  43. #endif

1.2.2
  1. cong@msi:/work/frameworks/myserver/server$ cat IDataService.cpp
  2. #define LOG_TAG "MYSERVER"
  3. #include <stdint.h>
  4. #include <sys/types.h>

  6. #include <binder/Parcel.h>
  7. #include <binder/IMemory.h>

  9. #include <utils/Errors.h>
  10. #include <utils/String8.h>

  12. #include "IDataService.h"
  13. #include "DataService.h"
  14. namespace android {

  16. class BpDataService: public BpInterface<IDataService>
  17. {

  19. public:
  20.     BpDataService(const sp<IBinder>& impl)
  21.         : BpInterface<IDataService>(impl)
  22.     {}
  23.     virtual int32_t setSpritePosition(int x, int y)
  24.     {
  25.         Parcel data, reply;
  26.         SLOGD("IDataService.cpp L26: SET_MOUSE_POS");
  27.         data.writeInterfaceToken(IDataService::getInterfaceDescriptor());
  28.         status_t status = remote()->transact(SET_MOUSE_POS,data,&reply);
  29.         if(status == NO_ERROR){
  30.             return reply.readInt32();
  31.         }
  32.         return status;
  33.     }
  34.     virtual int32_t readData(char* buf)
  35.     {
  36.         Parcel data, reply;
  37.         data.writeInterfaceToken(IDataService::getInterfaceDescriptor());
  38.         status_t status = remote()->transact(READ__DATA,data,&reply);
  39.         if(status == NO_ERROR){
  40.             return reply.readInt32();
  41.         }
  42.         return status;
  43.     }
  44.     virtual int32_t writeData(char* buf, int cnt)
  45.     {
  46.         Parcel data, reply;
  47.         data.writeInterfaceToken(IDataService::getInterfaceDescriptor());
  48.         status_t status = remote()->transact(WRITE__DATA,data,&reply);
  49.         if(status == NO_ERROR){
  50.             return reply.readInt32();
  51.         }
  52.         return status;
  53.     }

  55. };

  57. IMPLEMENT_META_INTERFACE(DataService, "test.myserver.IDataService");

  59. status_t BnDataService::onTransact(
  60.     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
  61. {
  62.     int32_t i;
  63.     char buf[1024];
  64.     memset(buf, 0, sizeof(buf));
  65.     switch (code) {
  66.         case SET_MOUSE_POS: { //
  67.             SLOGD("IDataService.cpp L124: SET_MOUSE_POS");
  68.             CHECK_INTERFACE(IDataService, data, reply);
  69.             int x = data.readInt32();
  70.             int y = data.readInt32();
  71.             reply->writeNoException();
  72.             reply->writeInt32(setSpritePosition(x, y));
  73.             return NO_ERROR;
  74.         } break;
  75.         case READ__DATA: { //
  76.             CHECK_INTERFACE(IDataService, data, reply);
  77.             int cnt = readData(buf);
  78. #if 0
  79.             for(int i=0; i<cnt; i++)
  80.                 SLOGD("%d=0x%x", i, buf[i]);
  81. #endif
  82.             reply->writeNoException();
  83.             //writeByteArray
  84.             reply->writeInt32(cnt);
  85.             reply->write(buf, cnt);
  86.             return NO_ERROR;
  87.         } break;
  88.         case WRITE__DATA: { //
  89.             CHECK_INTERFACE(IDataService, data, reply);
  90.             int bufferSize = data.readInt32();
  91.             if (0 < bufferSize) {
  92.                 data.read(buf, bufferSize);
  93.             }
  94.             reply->writeNoException();
  95.             reply->writeInt32(writeData(buf, bufferSize));
  96.             return NO_ERROR;
  97.         } break;
  98.         default:
  99.             return BBinder::onTransact(code, data, reply, flags);
  100.     }
  101. }

  103. };



1.3
1.3.1
  1. cong@msi:/work/frameworks/myserver/server$ cat DataService.h
  2. #ifndef ANDROID_MOUSE_INJECT_SERVICE_H_FOR_APP
  3. #define ANDROID_MOUSE_INJECT_SERVICE_H_FOR_APP

  5. #include <arpa/inet.h>

  7. #include <utils/threads.h>
  8. #include <utils/List.h>
  9. #include <utils/Errors.h>
  10. #include <utils/KeyedVector.h>
  11. #include <utils/String8.h>
  12. #include <utils/Vector.h>

  14. #include <binder/Parcel.h>
  15. #include <binder/IPCThreadState.h>
  16. #include <binder/IServiceManager.h>
  17. //#include <binder/AppOpsManager.h>
  18. #include <binder/BinderService.h>
  19. //#include <binder/IAppOpsCallback.h>
  20. #include "IDataService.h"

  22. namespace android {

  24. class DataService :
  25.     public BinderService<DataService>,
  26.     public BnDataService
  27. {
  28.     friend class BinderService<DataService>;
  29. public:
  30.   DataService();
  31.   virtual ~DataService();

  33.   static void instantiate();

  35.   virtual int32_t setSpritePosition(int x, int y);
  36.   virtual int32_t readData(char* buft);
  37.   virtual int32_t writeData(char* buf, int cnt);

  39.   virtual status_t onTransact(uint32_t code,
  40.             const Parcel &data,
  41.             Parcel *reply,
  42.             uint32_t flags);
  43. };

  45. static sp<DataService> mDataService;

  47. };

  49. #endif


1.3.2
  1. cong@msi:/work/frameworks/myserver/server$ cat DataService.cpp
  2. #define LOG_TAG "MYSERVER"

  4. #include <stdio.h>
  5. #include <fcntl.h>
  6. #include <sys/types.h>
  7. #include <sys/stat.h>
  8. #include <sys/time.h>
  9. #include <dirent.h>
  10. #include <unistd.h>
  11. #include <string.h>
  12. #include <cutils/atomic.h>
  13. #include <cutils/properties.h>
  14. #include <utils/misc.h>
  15. #include <binder/IPCThreadState.h>
  16. #include <binder/IServiceManager.h>
  17. #include <binder/MemoryHeapBase.h>
  18. #include <binder/MemoryBase.h>
  19. #include <binder/Parcel.h>
  20. #include <utils/Errors.h>
  21. #include <utils/String8.h>
  22. #include <utils/SystemClock.h>
  23. #include <utils/Vector.h>
  24. #include <sys/ioctl.h>
  25. #include <linux/ioctl.h>
  26. #include "DataService.h"

  28. namespace android {
  29. status_t DataService::onTransact(uint32_t code,
  30.     const Parcel &data,
  31.     Parcel *reply,
  32.     uint32_t flags)
  33. {
  34.     return BnDataService::onTransact(code, data, reply, flags);
  35. }

  37. void DataService::instantiate() {
  38.     SLOGD("DataService instantiate...");
  39.     sp<DataService> iReadygokeyService = new DataService();
  40.     sp<IServiceManager> sm = defaultServiceManager();
  41.     status_t status = sm->addService(String16("iReadygo.RWService"), iReadygokeyService);
  42.     if(status != 0){
  43.        SLOGD("can't add InputMapper Service, status=%d, %s",status,strerror(errno));
  44.     }
  45.     mDataService = iReadygokeyService;
  46. }

  48. static void recv_callback(const char *s, const char *sms_pdu);

  50. DataService::DataService()
  51. {
  52.     SLOGD("DataService construct...");
  53. }

  55. DataService::~DataService()
  56. {
  57. }

  59. int DataService::setSpritePosition(int x, int y)
  60. {
  61.     SLOGD("server:DataService.cpp L111: final setSpritePosition\n");
  62.     return 0;
  63. }

  65. int DataService::readData(char* buf)
  66. {
  67.     int i;
  68.     int len = 10;
  69.     SLOGD("server: read");
  70.     for(i=0; i<10; i++)
  71.     {
  72.         buf[i] = i;
  73.     }
  74.     return len;
  75. }

  77. int DataService::writeData(char* buf, int cnt)
  78. {
  79.     int i;
  80.     SLOGD("server: write");
  81.     for(i=0; i<cnt; i++)
  82.     {
  83.         SLOGD("server: %d=0x%x ", i, buf[i]);
  84.     }
  85.     return 0;
  86. }

  88. }

1.4 Android.mk
  1. LOCAL_PATH:= $(call my-dir)

  3. include $(CLEAR_VARS)

  5. LOCAL_SRC_FILES:= \
  6.     server_main.cpp \
  7.     IDataService.cpp \
  8.     DataService.cpp

  10. LOCAL_SHARED_LIBRARIES := \
  11.     libutils \
  12.     libcutils \
  13.     liblog \
  14.     libhardware_legacy \
  15.     libbinder

  17. LOCAL_MODULE_TAGS := optional

  19. LOCAL_MODULE:= my_server

  21. include $(BUILD_EXECUTABLE)


二. core层的代码
2.1
  1. cong@msi:/work/frameworks/myserver/core$ cat java/com/test/myserver/DataService.java
  2. package test.myserver.dataservice;

  4. import android.content.Context;
  5. import test.myserver.IDataService;
  6. import android.os.IBinder;
  7. import android.os.Handler;
  8. import android.os.Looper;
  9. import android.os.RemoteException;
  10. import android.os.ServiceManager;
  11. import android.util.Log;

  13. public class DataService {
  14.     public static final String TAG = "MYSERVER";
  15.     //private static final String IREADYGO_KEY_SERVICE_BINDER_NAME = "iReadygo.DataService";
  16.     private static final String MYSERVICE_BINDER_NAME = "iReadygo.RWService";
  17.     private final IDataService mDataService;
  18.     private final Context mContext;

  20.     public DataService(Context context)
  21.     {
  22.         mContext = context;
  23.         IBinder DataServiceBinder = ServiceManager.getService(MYSERVICE_BINDER_NAME);
  24.         mDataService = IDataService.Stub.asInterface(DataServiceBinder);
  25.     }

  27.     public int setSpritePosition(int x, int y)
  28.     {
  29.         int ret = -1;
  30.         Log.d(TAG, "in func setSpritePosition()");
  31.         if( null ){
  32.             try{
  33.                 ret = mDataService.setSpritePosition(x, y);
  34.             } catch (RemoteException e){
  35.                 Log.e(TAG, Log.getStackTraceString(new Throwable()));
  36.             }
  37.         }
  38.         return ret;
  39.     }

  41.     public byte[] readData( )
  42.     {
  43.         byte[] buf = null;
  44.         int ret = -1;
  45.         int i=0;
  46.         Log.d(TAG, "core: in func readData()");
  47.         if( null ){
  48.             try{
  49.                 buf = mDataService.readData();
  50.                 for(i=0; i<buf.length; i++)
  51.                     Log.d(TAG, "core: readData "+i+" = "+ buf[i]);
  52.             } catch (RemoteException e){
  53.                 Log.e(TAG, Log.getStackTraceString(new Throwable()));
  54.                 return null;
  55.             }
  56.         }
  57.         return buf;
  58.     }
  59.     public int writeData(byte[] buf)
  60.     {
  61.         int ret = -1;
  62.         Log.d(TAG, "core: in func writeData()");
  63.         if( null ){
  64.             try{
  65.                 ret = mDataService.writeData(buf);
  66.             } catch (RemoteException e){
  67.                 Log.e(TAG, Log.getStackTraceString(new Throwable()));
  68.             }
  69.         }
  70.         return ret;
  71.     }


  74. }

2.2
  1. cong@msi:/work/frameworks/myserver/core$ cat java/com/test/myserver/IDataService.aidl
  2. package test.myserver;


  5. /** @hide */
  6. interface IDataService
  7. {
  8.     int setSpritePosition(int x, int y);
  9.     byte[] readData();
  10.     int writeData(in byte[] data);
  11. }

2.3
  1. cong@msi:/work/frameworks/myserver/core$ cat com.test.myserver.xml
  2. <?xml version="1.0" encoding="utf-8"?>
  3. <permissions>
  4.     <library name="com.test.myserver.xml"
  5.             file="/system/framework/com.test.myserver.jar"/>
  6. </permissions>

2.4
  1. cong@msi:/work/frameworks/myserver/core$ cat Android.mk
  2. LOCAL_PATH := $(call my-dir)

  4. include $(CLEAR_VARS)
  5.     
  6. LOCAL_SRC_FILES := \
  7.     $(call all-subdir-java-files) \
  8.     java/com/test/myserver/IDataService.aidl

  10. LOCAL_AIDL_INCLUDES += frameworks/myserver/core/java/com

  12. LOCAL_MODULE_TAGS := optional

  14. # This is the target being built.
  15. LOCAL_MODULE:= com.test.myserver

  17. include $(BUILD_JAVA_LIBRARY)

  19. include $(CLEAR_VARS)
  20. LOCAL_MODULE := com.test.myserver.xml

  22. LOCAL_MODULE_TAGS := optional

  24. LOCAL_MODULE_CLASS := ETC

  26. LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)/permissions

  28. LOCAL_SRC_FILES := $(LOCAL_MODULE)

  30. include $(BUILD_PREBUILT)



三.apk层的代码
3.1 TestData.java
  1. package com.test;
  2. import com.test.testData.R;
  3. import android.app.Activity;
  4. import android.content.Context;
  5. import android.os.Bundle;
  6. import android.view.View;
  7. import android.view.View.OnClickListener;
  8. import android.util.Log;
  9. import android.widget.Button;

  11. import test.myserver.dataservice.DataService;

  13. public class TestData extends Activity {
  14.     public static final String TAG = "MYSERVER";

  16.     class DataServiceWrapper extends DataService {
  17.         public DataServiceWrapper(Context context) {
  18.             super(context);
  19.         }

  21.     }

  23.     @Override
  24.     protected void onCreate(Bundle savedInstanceState) {
  25.         super.onCreate(savedInstanceState);
  26.         setContentView(R.layout.activity_main);
  27.         final DataService im = new DataService(this);
  28.         Button btnTest= (Button) findViewById(R.id.btn_test);

  30.         btnTest.setOnClickListener(new OnClickListener() {
  31.             @Override
  32.             public void onClick(View v) {
  33.                 byte [] buf = new byte[16];
  34.                 int i;

  36.                 //Log.d(TAG, "next setSpritePosition()");
  37.                 //im.setSpritePosition(5, 6);
  38.                 //Log.d(TAG, "next im.readData()");
  39.                 
  40.                 Log.d(TAG, "apk: next readData");
  41.                 buf = im.readData();
  42.                 Log.d(TAG, "apk: next readData over");
  43.                 for(i=0; i<buf.length; i++)
  44.                 {
  45.                     Log.d(TAG, "apk: readData " + i + "= " + buf[i]);
  46.                 }

  48.                 Log.d(TAG, "apk: next writeData");
  49.                 im.writeData(buf);
  50.                 Log.d(TAG, "apk: next writeData over");
  51.                 try{
  52.                 }catch(Exception e){
  53.                     Log.d(TAG, "cong: error");
  54.                 }
  55.             }
  56.         });
  57.     }
  58. }

四.编译脚本
4.1 myserver.sh
  1. cong@msi:/work/$ cat myserver.sh
  2. #!/bin/sh
  3. make_server()
  4. {
  5.     adb remount
  6.     mmm ./frameworks/myserver/server
  7.     adb push out/debug/target/product/ardbeg/system/bin/my_server /system/bin/
  8.     adb shell sync
  9. }

  11. make_core()
  12. {
  13.     adb remount
  14.     mmm ./frameworks/myserver/core
  15.     adb push out/debug/target/product/ardbeg/system/framework/com.test.myserver.jar /system/framework/com.test.myserver.jar
  16.     adb push out/debug/target/product/ardbeg/system/etc/permissions/com.test.myserver.xml /system/etc/permissions/com.test.myserver.xml
  17.     adb shell sync
  18.     #cp out/target/common/obj/JAVA_LIBRARIES/com.ireadygo.cloudsim_intermediates/classes-full-debug.jar /tmp/
  19. }


  22. make_apk()
  23. {
  24.     rm -rf ./frameworks/myserver/testapk/gen/
  25.     rm -rf ./frameworks/myserver/testakp/bin/
  26.     rm -rf ./frameworks/myserver/testapk/assets/
  27.     adb remount
  28.     mmm ./frameworks/myserver/testapk/
  29.     adb push out/debug/target/product/ardbeg/system/app/myserv_app.apk /system/app/
  30.     adb shell sync
  31. }

  33. case "$1" in
  34.     serv)
  35.         make_server
  36.         ;;
  37.     core)
  38.         make_core
  39.         ;;
  40.     apk)
  41.         make_apk
  42.         ;;
  43.     *)
  44.         make_server
  45.         make_core
  46.         make_apk
  47.         ;;
  48. esac

五.执执结果
5.1
  1. D/MYSERVER( 1502): apk: next readData            --> 1. apk层调用read
  2. D/MYSERVER( 1502): core: in func readData()      --> 1. core层调用read
  3. D/MYSERVER( 1459): server: read                  --> 1. server层调用read
  4. D/MYSERVER( 1502): core: readData 0 = 0          --> 1. core层调用read返回并打印结果
  5. D/MYSERVER( 1502): core: readData 1 = 1
  6. D/MYSERVER( 1502): core: readData 2 = 2
  7. D/MYSERVER( 1502): core: readData 3 = 3
  8. D/MYSERVER( 1502): core: readData 4 = 4
  9. D/MYSERVER( 1502): core: readData 5 = 5
  10. D/MYSERVER( 1502): core: readData 6 = 6
  11. D/MYSERVER( 1502): core: readData 7 = 7
  12. D/MYSERVER( 1502): core: readData 8 = 8
  13. D/MYSERVER( 1502): core: readData 9 = 9
  14. D/MYSERVER( 1502): apk: next readData over      --> 1. apk层调用read结束
  15. D/MYSERVER( 1502): apk: readData 0= 0           --> 1. apk层调用read返回并打印结果
  16. D/MYSERVER( 1502): apk: readData 1= 1
  17. D/MYSERVER( 1502): apk: readData 2= 2
  18. D/MYSERVER( 1502): apk: readData 3= 3
  19. D/MYSERVER( 1502): apk: readData 4= 4
  20. D/MYSERVER( 1502): apk: readData 5= 5
  21. D/MYSERVER( 1502): apk: readData 6= 6
  22. D/MYSERVER( 1502): apk: readData 7= 7
  23. D/MYSERVER( 1502): apk: readData 8= 8
  24. D/MYSERVER( 1502): apk: readData 9= 9
  25. D/MYSERVER( 1502): apk: next writeData           --> 2. apk层调用write
  26. D/MYSERVER( 1502): core: in func writeData()     --> 2. core层调用write
  27. D/MYSERVER( 1459): server: write                 --> 2. server层调用write
  28. D/MYSERVER( 1459): server: 0=0x0                 --> 2. server层打印write的buf
  29. D/MYSERVER( 1459): server: 1=0x1
  30. D/MYSERVER( 1459): server: 2=0x2
  31. D/MYSERVER( 1459): server: 3=0x3
  32. D/MYSERVER( 1459): server: 4=0x4
  33. D/MYSERVER( 1459): server: 5=0x5
  34. D/MYSERVER( 1459): server: 6=0x6
  35. D/MYSERVER( 1459): server: 7=0x7
  36. D/MYSERVER( 1459): server: 8=0x8
  37. D/MYSERVER( 1459): server: 9=0x9
  38. D/MYSERVER( 1502): apk: next writeData over     --> 2. apk层调用write返回

六.代码打包
6.1
server.rar(下载后改名为server.tar.gz)
6.2
core.rar(下载后改名为core.tar.gz)
6.3
testapk.rar(下载后改名为testapk.tar.gz)
七.注意
7.1 不在源码下编译apk
需要把在源码下编译出来的jar包发给apk的开发人员,路径是:
out/debug/target/common/obj/JAVA_LIBRARIES/com.test.myserver_intermediates/classes-full-debug.jar
一定是这个classes-full-debug.jar而不是
install out/debug/target/product/ardbeg/system/framework/com.test.myserver.jar


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