我正在尝试开发一个默默地驳回 USSD 响应的应用程序。我使用了来自http://commandus.com/blog/?p=58的代码，并进行了细微的更改。我已经创建了IExtendedNetworkService.aidlin the packagecom.android.internal.telephony和USSDDumbExtendedNetworkServiceinside the package com.commandus.ussd。问题是，运行应用程序后没有任何反应（即使在重新启动手机后）。有人可以指出我做错了什么吗？我应该编写任何额外的代码来使它工作吗？
IExtendedNetworkService.aidl
package com.android.internal.telephony;
/**
* Interface used to interact with extended MMI/USSD network service.
*/
interface IExtendedNetworkService {
/**
* Set a MMI/USSD command to ExtendedNetworkService for further process.
* This should be called when a MMI command is placed from panel.
* @param number the dialed MMI/USSD number.
*/
void setMmiString(String number);
/**
* return the specific string which is used to prompt MMI/USSD is running
*/
CharSequence getMmiRunningText();
/**
* Get specific message which should be displayed on pop-up dialog.
* @param text original MMI/USSD message response from framework
* @return specific user message correspond to text. null stands for no pop-up dialog need to show.
*/
CharSequence getUserMessage(CharSequence text);
/**
* Clear timeout message and pre-set MMI/USSD command
* This should be called when user cancel a pre-dialed MMI command.
*/
void clearMmiString();
}
USSDDumbExtendedNetworkService
package com.commandus.ussd;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.Uri;
import android.os.IBinder;
import android.os.PatternMatcher;
import android.os.RemoteException;
import android.util.Log;
import com.android.internal.telephony.IExtendedNetworkService;
/**
* Service implements IExtendedNetworkService interface.
* USSDDumbExtendedNetworkService Service must have name
* "com.android.ussd.IExtendedNetworkService" of the intent declared in the
* Android manifest file so com.android.phone.PhoneUtils class bind to this
* service after system rebooted. Please note service is loaded after system
* reboot! Your application must check is system rebooted.
*
* @see Util#syslogHasLine(String, String, String, boolean)
*/
public class USSDDumbExtendedNetworkService extends Service {
public static final String TAG = "MobileServices";
public static final String LOG_STAMP = "*USSDTestExtendedNetworkService bind successfully*";
public static final String URI_SCHEME = "ussd";
public static final String URI_AUTHORITY = "g_el.net";
public static final String URI_PATH = "/";
public static final String URI_PAR = "return";
public static final String URI_PARON = "on";
public static final String URI_PAROFF = "off";
public static final String MAGIC_ON = ":ON;)";
public static final String MAGIC_OFF = ":OFF;(";
public static final String MAGIC_RETVAL = ":RETVAL;(";
private static boolean mActive = false;
private static CharSequence mRetVal = null;
private Context mContext = null;
private String msgUssdRunning = "G Testing...";
final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (Intent.ACTION_INSERT.equals(intent.getAction())) {
mContext = context;
if (mContext != null) {
msgUssdRunning = "ussd blocker Running";
mActive = true;
Log.d(TAG, "activate");
}
} else if (Intent.ACTION_DELETE.equals(intent.getAction())) {
mContext = null;
mActive = false;
Log.d(TAG, "deactivate");
}
}
};
private final IExtendedNetworkService.Stub mBinder = new IExtendedNetworkService.Stub() {
@Override
public void setMmiString(String number) throws RemoteException {
Log.d(TAG, "setMmiString: " + number);
}
@Override
public CharSequence getMmiRunningText() throws RemoteException {
Log.d(TAG, "getMmiRunningText: " + msgUssdRunning);
return msgUssdRunning;
}
@Override
public CharSequence getUserMessage(CharSequence text)
throws RemoteException {
if (MAGIC_ON.contentEquals(text)) {
mActive = true;
Log.d(TAG, "control: ON");
return text;
} else {
if (MAGIC_OFF.contentEquals(text)) {
mActive = false;
Log.d(TAG, "control: OFF");
return text;
} else {
if (MAGIC_RETVAL.contentEquals(text)) {
mActive = false;
Log.d(TAG, "control: return");
return mRetVal;
}
}
}
if (!mActive) {
Log.d(TAG, "getUserMessage deactivated: " + text);
//return null;//Use this in order to cancel the output on the screen.
return text;
}
String s = text.toString();
// store s to the !
Uri uri = new Uri.Builder().scheme(URI_SCHEME).authority(URI_AUTHORITY).path(URI_PATH).appendQueryParameter(URI_PAR,text.toString()).build();
sendBroadcast(new Intent(Intent.ACTION_GET_CONTENT, uri));
mActive = false;
mRetVal = text;
Log.d(TAG, "getUserMessage: " + text + "=" + s);
return null;
}
@Override
public void clearMmiString() throws RemoteException {
Log.d(TAG, "clearMmiString");
}
};
/**
* Put stamp to the system log when PhoneUtils bind to the service after
* Android has rebooted. Application must call
* {@link Util#syslogHasLine(String, String, String, boolean)} to check is
* phone rebooted or no. Without reboot phone application does not bind tom
* this service!
*/
@Override
public IBinder onBind(Intent intent) {
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_INSERT);
filter.addAction(Intent.ACTION_DELETE);
filter.addDataScheme(URI_SCHEME);
filter.addDataAuthority(URI_AUTHORITY, null);
filter.addDataPath(URI_PATH, PatternMatcher.PATTERN_LITERAL);
registerReceiver(mReceiver, filter);
// Do not localize!
Log.i(TAG, LOG_STAMP);
return mBinder;
}
public IBinder asBinder() {
Log.d(TAG, "asBinder");
return mBinder;
}
@Override
public boolean onUnbind(Intent intent) {
unregisterReceiver(mReceiver);
return super.onUnbind(intent);
}
}
清单文件
<service android:name="com.commandus.ussd.USSDDumbExtendedNetworkService">
<intent-filter >
<action android:name="com.android.ussd.IExtendedNetworkService" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</service>