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Android AIDL(Android Interface Definition Language)引见

2012-07-24 
Android AIDL(Android Interface Definition Language)介绍在网上看到一篇介绍AIDL的文章，自己把代码在2.2

Android AIDL(Android Interface Definition Language)介绍

在网上看到一篇介绍AIDL的文章，自己把代码在2.2的sdk上跑了一下，稍微更改了一下原文中的代码（下文中的代码都是自己编译通过后使用的代码）并且添加了xml文件，大家可以按照这个代码自己实现一遍。

以下部门来自网上其他朋友的文章（由于出处太多，无法找到原始的地址）

================================================================


  1. package?com.android.aidltest;?    ?    
  2. import?android.app.Service;?    import?android.content.Intent;?    
  3. import?android.os.IBinder;?    import?android.os.RemoteCallbackList;?    
  4. import?android.os.RemoteException;?    import?android.util.Log;?    
  5. ?    public?class?MyService?extends?Service?{?    
  6. ????public?void?onCreate()?{?    ????????printf("service?create");?    
  7. ????}?    ?????    
  8. ????public?void?onStart(Intent?intent,?int?startId)?{?    ????????printf("service?start?id?=?"?+?startId);?    
  9. ????????callback(startId);?    ????}?    
  10. ?????    ?    
  11. ????@Override?    ????public?IBinder?onBind(Intent?intent)?{?    
  12. ????????//?TODO?Auto-generated?method?stub?    ????????printf("service?on?bind");?    
  13. ????????return?mBinder;?    ????}?    
  14. ?????    ????public?void?onDestroy()?{?    
  15. ????????printf("service?on?destroy");?    ????????super.onDestroy();?    
  16. ????}?    ?????    
  17. ????public?boolean?onUnbind(Intent?intent)?{?    ????????printf("service?on?unbind");?    
  18. ????????return?super.onUnbind(intent);?    ????}?    
  19. ?????    ????public?void?onRebind(Intent?intent)?{?    
  20. ????????printf("service?on?rebind");?    ????????super.onRebind(intent);?    
  21. ????}?    ?????    
  22. ????private?void?printf(String?str)?{?    ????????Log.e("TAG","#######################---"+str+"-------");?    
  23. ?????????    ????}?    
  24. ?????    ????void?callback(int?val)?{?    
  25. ????????final?int?N?=?mCallbacks.beginBroadcast();?    ????????for?(int?i?=?0;?i?<?N;?i++)?{?    
  26. ????????????try?{?    ????????????????mCallbacks.getBroadcastItem(i).actionPerformed(val);?    
  27. ????????????}catch(RemoteException?e)?{?    ?????????????????    
  28. ????????????}?    ????????}?    
  29. ????????mCallbacks.finishBroadcast();?    ????}?    
  30. ?????    ????private?final?ITaskBinder.Stub?mBinder?=?new?ITaskBinder.Stub()?{?    
  31. ?????????????????    ????????@Override?    
  32. ????????public?void?unregisterCallback(ITaskCallback?cb)?throws?RemoteException?{?    ????????????printf("service?on?unregisterCallback");?    
  33. ????????????//?TODO?Auto-generated?method?stub?    ????????????if(cb!=null)?    
  34. ????????????????mCallbacks.unregister(cb);?    ????????}?    
  35. ?????????    ????????@Override?    
  36. ????????public?void?stopRunningTask()?throws?RemoteException?{?    ????????????printf("service?on?stopRunningTask");?    
  37. ????????????//?TODO?Auto-generated?method?stub???????????    ????????}?    
  38. ?????????    ????????@Override?    
  39. ????????public?void?registerCallback(ITaskCallback?cb)?throws?RemoteException?{?    ????????????printf("service?on?registerCallback");?    
  40. ????????????//?TODO?Auto-generated?method?stub?    ????????????if(cb!=null)?    
  41. ????????????????mCallbacks.register(cb);?    ????????}?    
  42. ?????????    ????????@Override?    
  43. ????????public?boolean?isTaskRunning()?throws?RemoteException?{?    ????????????printf("service?on?isTaskRunning");?    
  44. ????????????//?TODO?Auto-generated?method?stub?    ????????????return?false;?    
  45. ????????}?    ????};?    
  46. ?????    ????final?RemoteCallbackList<ITaskCallback>?mCallbacks?    
  47. ????=?new?RemoteCallbackList<ITaskCallback>();?    }?

?4. aidltest.java

  1. package?com.android.aidltest;?    ?    
  2. import?android.app.Activity;?    import?android.content.ComponentName;?    
  3. import?android.content.Context;?    import?android.content.Intent;?    
  4. import?android.content.ServiceConnection;?    import?android.os.Bundle;?    
  5. import?android.os.IBinder;?    import?android.os.RemoteException;?    
  6. import?android.util.Log;?    import?android.view.View;?    
  7. import?android.view.View.OnClickListener;?    import?android.widget.Button;?    
  8. ?    public?class?AidlTest?extends?Activity?{?    
  9. ????private?Button?btnOk;?    ????private?Button?btnCancel;?    
  10. ?????    ????/**?Called?when?the?activity?is?first?created.?*/?    
  11. ????@Override?    ????public?void?onCreate(Bundle?savedInstanceState)?{?    
  12. ????????super.onCreate(savedInstanceState);?    ????????setContentView(R.layout.main);?    
  13. ?????????    ????????btnOk?=?(Button)findViewById(R.id.btn_ok);?    
  14. ????????btnCancel?=?(Button)findViewById(R.id.btn_cancel);?    ?????????    
  15. ????????btnOk.setText("Start?Service");?    ????????btnCancel.setText("Stop?Service");?    
  16. ?????????    ????????btnOk.setOnClickListener(new?OnClickListener()?{?    
  17. ????????????public?void?onClick(View?v)?{?    ????????????????onOkClick();?    
  18. ????????????}?    ????????});?    
  19. ?????????    ????????btnCancel.setOnClickListener(new?OnClickListener()?{?    
  20. ????????????public?void?onClick(View?v)?{?    ????????????????onCancelClick();?    
  21. ????????????}?    ????????});?    
  22. ????}?    ????void?onOkClick()?{???    
  23. ????????printf("clicked?ok");?    ????????Bundle?args?=?new?Bundle();?    
  24. ?    ????????Intent?intent?=?new?Intent(this,?MyService.class);?    
  25. ????????intent.putExtras(args);?    ?    
  26. ????????bindService(intent,?mConnection,?Context.BIND_AUTO_CREATE);?    ????????startService(intent);????????????????????    
  27. ????}?    ?    
  28. ????void?onCancelClick()?{?    ????????printf("clicked?cancel");?    
  29. ????????Intent?intent?=?new?Intent(this,?MyService.class);?    ????????unbindService(mConnection);?    
  30. ????}?    ?????    
  31. ????private?void?printf(String?str)?{?    ????????Log.e("TAG",?"##################-------"+str+"-----");?    
  32. ????}?    ????ITaskBinder?mService;?    
  33. ?????    ????private?ServiceConnection?mConnection?=?new?ServiceConnection()?{?    
  34. ????????public?void?onServiceConnected(ComponentName?className,?    ????????????????IBinder?service)?{?    
  35. ????????????mService?=?ITaskBinder.Stub.asInterface(service);?    ?????????????    
  36. ????????????try?{?    ????????????????mService.registerCallback(mCallback);?    
  37. ????????????}catch?(RemoteException?e)?{?    ?????????????    
  38. ????????????}?    ????????}?    
  39. ????????public?void?onServiceDisconnected(ComponentName?className)?{?    ????????????mService?=?null;?    
  40. ????????}?    ????};?    
  41. ?????    ????private?ITaskCallback?mCallback?=?new?ITaskCallback.Stub()?{?    
  42. ????????@Override?    ????????public?void?actionPerformed(int?actionId)?throws?RemoteException?{?    
  43. ????????????//?TODO?Auto-generated?method?stub?    ????????????printf("callback?id?=?"?+?actionId);?    
  44. ????????}?    ????};?    
  45. }?

?5. xml文件

AndroidMenifest.xml

  1. <?xml?version="1.0"?encoding="utf-8"?>?    <manifest?xmlns:android="http://schemas.android.com/apk/res/android"?    
  2. ??????package="com.android.aidltest"?    ??????android:versionCode="1"?    
  3. ??????android:versionName="1.0">?    ????<application?android:icon="@drawable/icon"?android:label="@string/app_name">?    
  4. ????????<activity?android:name=".AidlTest"?    ??????????????????android:label="@string/app_name">?    
  5. ????????????<intent-filter>?    ????????????????<action?android:name="android.intent.action.MAIN"?/>?    
  6. ????????????????<category?android:name="android.intent.category.LAUNCHER"?/>?    ????????????</intent-filter>?    
  7. ????????</activity>?    ?????????    
  8. ????????<service?android:name=".MyService"?>?    ????????????<intent-filter>?    
  9. ????????????????<action?android:name="com.android.aidltest.START_MYSERVICE"?/>?    ????????????????<category?android:name="android.intent.category.DEFAULT"?/>?    
  10. ????????????</intent-filter>?    ????????</service>?    
  11. ?????????    ????</application>?    
  12. ????<uses-sdk?android:minSdkVersion="8"?/>?    ?    
  13. </manifest>??

?main.xml

  1. <?xml?version="1.0"?encoding="utf-8"?>?    <LinearLayout?xmlns:android="http://schemas.android.com/apk/res/android"?    
  2. ????android:orientation="vertical"?    ????android:layout_width="fill_parent"?    
  3. ????android:layout_height="fill_parent"?    ????>?    
  4. <TextView???    ????android:layout_width="fill_parent"??    
  5. ????android:layout_height="wrap_content"??    ????android:text="@string/hello"?    
  6. ????/>?    <Button??    
  7. ????android:id="@+id/btn_ok"?    ????android:layout_width="wrap_content"?    
  8. ????android:layout_height="wrap_content"?    ????android:text="@string/btn_ok"??    
  9. ????/>?    <Button??    
  10. ????android:id="@+id/btn_cancel"?    ????android:layout_width="wrap_content"?    
  11. ????android:layout_height="wrap_content"?    ????android:text="@string/btn_cancel"??    
  12. ????/>?    </LinearLayout>?

string.xml

  1. <?xml?version="1.0"?encoding="utf-8"?>? <resources>?
  2. ????<string?name="hello">Hello?World,?AidlTest!</string>? ????<string?name="app_name">AIDL?Test</string>?
  3. ????<string?name="btn_ok">OK</string>? ????<string?name="btn_cancel">Cancel</string>?
  4. </resources>?

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