bindService() 与 AIDL

Crazy_hand 2013-03-06 03:03:17
我试了两种远程调用的方法，一种是使用AIDL；一种是直接使用class localBinder extends Binder.
两种方试都是从android文档里面照抄的。只是改变了下名字。
可是，我运行的时候:
使用AIDL方法 activity中的onServiceConnected()一直没有运行，bindService()也返回false.
使用localBinder方法，成功的执行了bindService()-> service.onCreate->service.onBind()，然后到这里就出问题了，报了一个classCastException: android.os.BinderProxy can not to cast ...localBinder.
快帮我看看是哪里的问题吧，都两天了。由于自己英文不太好，文档看了几遍也没有更多的能帮我打出问题的。
我看了 service下bindService()函数的文档，以及AIDL的文档。使用方法也是从例子里模仿来的。。。。

注意下“//-----------------------------"的地方，如果想使用AIDL方法或localBinder方法需要对这几个地方进行更改。
下面是代码：


//TestAIDL.java 主activity

package Learn.testaidl;



import android.os.Bundle;

import android.os.IBinder;

import android.os.RemoteException;

import android.app.Activity;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.ServiceConnection;

import android.util.Log;

import android.view.Menu;

import android.view.View;

import android.widget.Button;



public class TestAIDL extends Activity {

	public final String TAG = "TestAIDL";

	

	//AIDLserviceInterface mService = null; //-------------------------------

	AIDLservice mService = null;

	

	Button btnstart;

	Button btnend;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_test_aidl);

		

		btnstart = (Button) findViewById(R.id.button1);

		btnend   = (Button) findViewById(R.id.button2);

		

		btnstart.setOnClickListener(new View.OnClickListener() {

			@Override

			public void onClick(View v) {

				if(//------------------------------------------------

					/* 

					 * bindService(new Intent(AIDLserviceInterface.class.getName()), mConnection, Context.BIND_AUTO_CREATE))

					 */

					getApplicationContext().bindService(new Intent(TestAIDL.this, AIDLservice.class), mConnection, Context.BIND_AUTO_CREATE)

				   )

					Log.i(TAG, "btnStart: bindService...");	

				else

					Log.i(TAG, "btnStart: bindService failure");

			}

		});

		btnend.setOnClickListener(new View.OnClickListener() {			

			@Override

			public void onClick(View v) {

				Log.i(TAG, "btnend: unbindService...");

				getApplicationContext().unbindService(mConnection);

			}

		});

	}



	public ServiceConnection mConnection = new ServiceConnection(){

		@Override

		public void onServiceConnected(ComponentName name, IBinder service) {

			//-------------------------------------------------------------------------

			/*

			mService = AIDLserviceInterface.Stub.asInterface(service);

			try {

				mService.refreshService();

			}catch(NullPointerException e) {

				Log.i(TAG, "onServiceConnected: NullPointerException");

			}catch(RemoteException e){

				Log.i(TAG, "onServiceConnected: RemoteException");

			}

			*/

			mService = ((AIDLservice.LocalBinder)service).getService();

			

		}

		@Override

		public void onServiceDisconnected(ComponentName name) {

			// TODO Auto-generated method stub

			

		}

	};

	@Override

	public boolean onCreateOptionsMenu(Menu menu) {

		// Inflate the menu; this adds items to the action bar if it is present.

		getMenuInflater().inflate(R.menu.activity_test_aidl, menu);

		return true;

	}



}







//AIDLservice  extends Service 服务类

package Learn.testaidl;



import android.app.Service;

import android.content.Intent;

import android.os.Binder;

import android.os.IBinder;

import android.os.RemoteException;

import android.util.Log;





public class AIDLservice extends Service{



	public final String TAG = "DIALservice";

	@Override

	public void onCreate() {

		Log.i(TAG, "onCreate");

		super.onCreate();

	}



	@Override

	public void onStart(Intent intent, int startId) {

		Log.i(TAG, "onStart");

		super.onStart(intent, startId);

	}



	@Override

	public void onDestroy() {

		Log.i(TAG, "onDestroy");

		super.onDestroy();

	}



	//-----------------------------------------------------

	// There are two methods of connect IPC that onBind -> return mIBinder or mBinder_Stub. 

	public AIDLserviceInterface.Stub mBinder_Stub = new AIDLserviceInterface.Stub() {

		@Override

		public void refreshService() throws RemoteException {

			Log.i(TAG, "Stub.refreshService");		

		}

	};

	public class LocalBinder extends Binder {

        AIDLservice getService() {

            return AIDLservice.this;

        }

    }

	

	private final IBinder mIBinder = new LocalBinder();

	@Override

	public IBinder onBind(Intent intent) {

		Log.i(TAG, "onBind");

		return mIBinder;

	}

}





<--!这里是mainfest.xml的内容, 另外，这个程序没有界面，全程使用log.i(tag,string)-->

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="Learn.testaidl"

    android:versionCode="1"

    android:versionName="1.0" >



    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="17" />



    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".TestAIDL"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />



                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <service 

            android:name=".AIDLservice"

            android:enabled="true"

            android:process=":remote"

            android:exported="true">

        </service>

    </application>



</manifest>





//最后是 AIDLserviceInterface.aidl 文件

package Learn.testaidl;



interface AIDLserviceInterface{

	void refreshService();

}
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Rayleigh 2013-03-07
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我给你调了一下。你改的试试 

//AIDLservice  extends Service 服务类
package Learn.testaidl;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;


public class AIDLservice extends Service{

	public final String TAG = "DIALservice";
	@Override
	public void onCreate() {
		Log.i(TAG, "onCreate");
		super.onCreate();
	}

	@Override
	public void onStart(Intent intent, int startId) {
		Log.i(TAG, "onStart");
		super.onStart(intent, startId);
	}

	@Override
	public void onDestroy() {
		Log.i(TAG, "onDestroy");
		super.onDestroy();
	}

	//-----------------------------------------------------
	// There are two methods of connect IPC that onBind -> return mIBinder or mBinder_Stub. 
	public AIDLserviceInterface.Stub mBinder_Stub = new AIDLserviceInterface.Stub() {
		@Override
		public void refreshService() throws RemoteException {
			Log.i(TAG, "Stub.refreshService");		
		}
	};
//	public class LocalBinder extends Binder {
//        AIDLservice getService() {
//        }
//    }
//	
//	private final IBinder mIBinder = new LocalBinder();
	@Override
	public IBinder onBind(Intent intent) {
		Log.i(TAG, "onBind");
		return mBinder_Stub;
	}
}

//TestAIDL.java 主activity
package Learn.testaidl;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class TestAIDL extends Activity {
	public final String TAG = "TestAIDL";
	
	//AIDLserviceInterface mService = null; //-------------------------------
	AIDLserviceInterface mService = null;
	
	Button btnstart;
	Button btnend;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		
		btnstart = (Button) findViewById(R.id.button1);
		btnend   = (Button) findViewById(R.id.button2);
		
		btnstart.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				if(//------------------------------------------------
					/* 
					 * bindService(new Intent(AIDLserviceInterface.class.getName()), mConnection, Context.BIND_AUTO_CREATE))
					 */
					getApplicationContext().bindService(new Intent(TestAIDL.this, AIDLservice.class), mConnection, Context.BIND_AUTO_CREATE)
				   )
					Log.i(TAG, "btnStart: bindService...");	
				else
					Log.i(TAG, "btnStart: bindService failure");
			}
		});
		btnend.setOnClickListener(new View.OnClickListener() {			
			@Override
			public void onClick(View v) {
				Log.i(TAG, "btnend: unbindService...");
				getApplicationContext().unbindService(mConnection);
			}
		});
	}

	public ServiceConnection mConnection = new ServiceConnection(){
		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			//-------------------------------------------------------------------------
			
			mService = AIDLserviceInterface.Stub.asInterface(service);
			try {
				mService.refreshService();
			}catch(NullPointerException e) {
				Log.i(TAG, "onServiceConnected: NullPointerException");
			}catch(RemoteException e){
				Log.i(TAG, "onServiceConnected: RemoteException");
			}
			
		}
		@Override
		public void onServiceDisconnected(ComponentName name) {
			// TODO Auto-generated method stub
			
		}
	};

}
南瓜饼 2013-03-07
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aidl的例子 楼主可以照猫画虎http://www.cnblogs.com/nanguabing/archive/2012/12/12/2815392.html
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Android下Aidl的使用，详细请参见博客：http://www.cnblogs.com/plokmju/p/android_Service_aidl_NormalType.html 和 http://www.cnblogs.com/plokmju/p/android_Service_aidl_CustomType.html
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有关android aidl的示例代码。 代码的解说，请参考博客“http://blog.csdn.net/sky544900373/article/details/8757979”
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