Android 调用Remote Service方法

《Android开发入门与实践》上的ex_TestServiceHolder例子在AndroidManifest.xml中

<service android:enabled="true" android:name=".TestService" android:process=":remote"/>

这是一个远程方法，是无法直接从Activity调用Service中的方法的。

根据网上的资料写了一个AIDL文件，实现了远程调用。在这里记录备忘。

package com.iceskysl.TestServiceHolder; 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.view.View.OnClickListener;import android.widget.Button;import android.widget.Toast;public class TestServiceHolder extends Activity {    private boolean _isBound;    private ITestService _boundService = null;    private static final String TAG = "TestServiceHolder";    private IBinder _service;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        setTitle("Service Test");        initButtons();    }    private ServiceConnection _connection = new ServiceConnection() {        public void onServiceConnected(ComponentName className, IBinder service) {            _boundService = ITestService.Stub.asInterface(service);            Toast.makeText(TestServiceHolder.this, "Service connected",                    Toast.LENGTH_SHORT).show();            Log.e(TAG, "=====>onServiceConnected()");        }        public void onServiceDisconnected(ComponentName className) {            // unexpectedly disconnected,we should never see this happen.            _boundService = null;            Toast.makeText(TestServiceHolder.this, "Service connected",                    Toast.LENGTH_SHORT).show();            Log.e(TAG, "<=====onServiceDisconnected()");        }    };    private void initButtons() {        Button buttonStart = (Button) findViewById(R.id.start_service);        buttonStart.setOnClickListener(new OnClickListener() {            public void onClick(View arg0) {                startService();            }        });        Button buttonStop = (Button) findViewById(R.id.stop_service);        buttonStop.setOnClickListener(new OnClickListener() {            public void onClick(View arg0) {                stopService();            }        });        Button buttonBind = (Button) findViewById(R.id.bind_service);        buttonBind.setOnClickListener(new OnClickListener() {            public void onClick(View arg0) {                bindService();            }        });        Button buttonUnbind = (Button) findViewById(R.id.unbind_service);        buttonUnbind.setOnClickListener(new OnClickListener() {            public void onClick(View arg0) {                unbindService();            }        });    }    private void startService() {        Intent i = new Intent(this, TestService.class);        this.startService(i);    }    private void stopService() {        Intent i = new Intent(this, TestService.class);        this.stopService(i);    }    private void bindService() {        Intent i = new Intent(this, TestService.class);        bindService(i, _connection, Context.BIND_AUTO_CREATE);        _isBound = true;    }    private void unbindService() {        if (_boundService != null) {            try {                Log.e(TAG,"_boundService.getCount() = "+ _boundService.getCount());            } catch (RemoteException e) {                e.printStackTrace();            }        }        if (_isBound) {            unbindService(_connection);            _isBound = false;        }    }}

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package com.iceskysl.TestServiceHolder; import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.RemoteException;import android.util.Log;public class TestService extends Service {    private static final String TAG = "TestService";    private NotificationManager _nm;    private boolean threadEnable = true;    private int i = 0;    private ITestService.Stub serviceBinder = new ITestService.Stub() {        @Override        public int getCount() throws RemoteException {            // TODO Auto-generated method stub            return i;        }    };    @Override    public IBinder onBind(Intent i) {        Log.e(TAG, "============> TestService.onBind");        return serviceBinder;    }    @Override    public boolean onUnbind(Intent i) {        Log.e(TAG, "============> TestService.onUnbind");        return false;    }    @Override    public void onRebind(Intent i) {        Log.e(TAG, "============> TestService.onRebind");    }    @Override    public void onCreate() {        Log.e(TAG, "============> TestService.onCreate");        _nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);        showNotification();        new Thread() {            public void run() {                try {                    while (threadEnable) {                        sleep(1000);                        Log.d(TAG, "Count = " + (++i));                    }                } catch (InterruptedException e) {                    e.printStackTrace();                }            }        }.start();    }    @Override    public void onStart(Intent intent, int startId) {        Log.e(TAG, "============> TestService.onStart");    }    @Override    public void onDestroy() {        _nm.cancel(R.string.service_started);        threadEnable = false;        Log.e(TAG, "============> TestService.onDestroy");    }    private void showNotification() {        Notification notification = new Notification(R.drawable.face_1,                "Service started", System.currentTimeMillis());        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,                new Intent(this, TestServiceHolder.class), 0);        // must set this for content view, or will throw a exception        notification.setLatestEventInfo(this, "Test Service",                "Service started", contentIntent);        _nm.notify(R.string.service_started, notification);    }    public int getCount() {        return i;    }}

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ITestService.aidl package com.iceskysl.TestServiceHolder; interface ITestService{    int getCount();}

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