[经验分享] Android中AIDL实现(跨进程通信.docx

经验分享 Android中AIDL实现（跨进程通信，有源码）本帖最后由 Mr jing 于 2011-5-3 15:46 编辑 一. 概述： 跨进程通信（AIDL），主要实现进程（应用）间数据共享功能。二. 实现流程： 1. 服务器端实现： （1）目录结构，如下图： 下载 (20.96 KB)2011-5-3 04:56 （2）实现*.aidl文件： A. IAIDLService.aidl实现：view plaincopy to clipboardprint?1. package com.focus.aidl; 2.3. import com.focus.aidl.Person; 4.5. interface IAIDLService 6.7. String getName(); 8.9. Person getPerson(); 10.11. B. Person.aidl实现：view plaincopy to clipboardprint?1. parcelable Person; （3）进程间传递对象必需实现Parcelable或Serializable接口，下面是被传递的Person对象实现：view plaincopy to clipboardprint?1. package com.focus.aidl; 2.3. import android.os.Parcel; 4. import android.os.Parcelable; 5.6. publicclass Person implements Parcelable 7.8. private String name; 9.10. privateint age; 11.12. public Person() 13.14. 15.16. public Person(Parcel source) 17. name = source.readString(); 18. age = source.readInt(); 19. 20.21. public String getName() 22. return name; 23. 24.25. publicvoid setName(String name) 26. = name; 27. 28.29. publicint getAge() 30. return age; 31. 32.33. publicvoid setAge(int age) 34. this.age = age; 35. 36.37. publicint describeContents() 38. return0; 39. 40.41. publicvoid writeToParcel(Parcel dest, int flags) 42. dest.writeString(name); 43. dest.writeInt(age); 44. 45.46. publicstaticfinal Parcelable.Creator CREATOR = new Creator() 47. public Person newArray(int size) 48. returnnew Personsize; 49. 50.51. public Person createFromParcel(Parcel source) 52. returnnew Person(source); 53. 54. ; 55.56. （4）实现IAIDLService.aidl文件中定义的接口，并定义Service，在Service被bind时返回此实现类：view plaincopy to clipboardprint?1. package com.focus.aidl; 2.3. import com.focus.aidl.IAIDLService.Stub; 4.5. import android.app.Service; 6. import android.content.Intent; 7. import android.os.IBinder; 8. import android.os.RemoteException; 9.10. publicclass AIDLServiceImpl extends Service 11.12. Override 13. public IBinder onBind(Intent intent) 14. return mBinder; 15. 16.17. /* 18. * 在AIDL文件中定义的接口实现。 19. */ 20. private IAIDLService.Stub mBinder = new Stub() 21.22. public String getName() throws RemoteException 23. returnmayingcai; 24. 25.26. public Person getPerson() throws RemoteException 27. Person mPerson = new Person(); 28.29. mPerson.setName(mayingcai); 30. mPerson.setAge(24); 31.32. return mPerson; 33. 34.35. ; 36.37. （5）在AndroidManifest.xml文件中注册Service：view plaincopy to clipboardprint?1. 2.3. 4. 5. 6.7. 2. 客户端实现： （1）目录结构，如下图： 下载 (21.6 KB)2011-5-3 04:56 （2）将服务器端的IAIDLService.aidl，Person.aidl和Person.java文件拷贝到本工程中，如上图所示： （3）res/layout/main.xml实现：view plaincopy to clipboardprint?1. 2.3. 8.9. 14.15. 21.22. 29.30. 37.38. （4）主Activity实现，从服务器端获取数据在客户端显示：view plaincopy to clipboardprint?1. package com.focus.aidl.client; 2.3. import android.app.Activity; 4. import android.content.ComponentName; 5. import android.content.Intent; 6. import android.content.ServiceConnection; 7. import android.os.Bundle; 8. import android.os.IBinder; 9. import android.os.RemoteException; 10. import android.view.View; 11. import android.view.View.OnClickListener; 12. import android.widget.Button; 13. import android.widget.TextView; 14.15. import com.focus.aidl.IAIDLService; 16. import com.focus.aidl.Person; 17.18. publicclass AIDLClientAcitivty extends Activity 19.20. private IAIDLService mAIDLService; 21.22. private TextView mName; 23.24. private Button mMessage; 25.26. private Button mPerson; 27.28. /* 29. * 第一步，创建ServiceConnection对象，在onServiceConnected()方法中获取IAIDLService实现。 30. */ 31. private ServiceConnection mServiceConnection = new ServiceConnection() 32.33. publicvoid onServiceConnected(ComponentName name, IBinder service) 34. mAIDLService = IAIDLService.Stub.asInterface(service); 35.36. mMessage.setEnabled(true); 37. mPerson.setEnabled(true); 38. 39.40. publicvoid onServiceDisconnected(ComponentName name) 41. mAIDLService = null; 42.43. mMessage.setEnabled(false); 44. mPerson.setEnabled(false); 45. 46.47. ; 48.49. Override 50. publicvoid onCreate(Bundle savedInstanceState) 51. super.onCreate(savedInstanceState); 52.53. setContentView(R.layout.main); 54.55. mName = (TextView) findViewById(R.); 56.57. findViewById(R.id.connection).setOnClickListener(new OnClickListener() 58. publicvoid onClick(View view) 59.60. /* 61. * 第二步，单击连接按钮后用mServiceConnection去bind服务器端创建的Service。 62. */ 63. Intent service = new Intent(com.focus.aidl.IAIDLService); 64. bindService(service, mServiceConnection, BIND_AUTO_CREATE); 65.66. 67. ); 68.69. mMessage = (Button) findViewById(R.id.message); 70. mMessage.setOnClickListener(new OnClickListener() 71. publicvoid onClick(View view) 72. /* 73. * 第三步，从服务器端获取字符串。 74. */ 75. try 76. mName.setText(mAIDLService.getName(); 77. catch (RemoteException e) 78. e.printStackTrace(); 79. 80. 81. ); 82.83. mPerson = (Button) findViewById(R.id.person); 84. mPerson.setOnClickListener(new OnClickListener() 85. publicvoid onClick(View view) 8