Question

我正在尝试使用反射来访问电话API的一些未发布的功能。目前我无法实例化一个serviceManager对象，这个对象需要将“电话”服务作为绑定器，然后我可以使用它来实例化拨打电话，结束通话等所需的电话对象。

目前我打电话时

serviceManagerObject = tempInterfaceMethod.invoke(null, new Object[] { new Binder() });

它返回nullPointerException。我认为这与创建一个新的Binder而不是发送适当的粘合剂（我不确定哪个是合适的）有关。

public void placeReflectedCall() throws ClassNotFoundException,
        SecurityException, NoSuchMethodException, IllegalArgumentException,
        IllegalAccessException, InvocationTargetException,
        InstantiationException {
    String serviceManagerName = "android.os.IServiceManager";
    String serviceManagerNativeName = "android.os.ServiceManagerNative";
    String telephonyName = "com.android.internal.telephony.ITelephony";

    Class telephonyClass;
    Class telephonyStubClass;
    Class serviceManagerClass;
    Class serviceManagerStubClass;
    Class serviceManagerNativeClass;
    Class serviceManagerNativeStubClass;

    Method telephonyCall;
    Method telephonyEndCall;
    Method telephonyAnswerCall;
    Method getDefault;

    Method[] temps;
    Constructor[] serviceManagerConstructor;

    // Method getService;
    Object telephonyObject;
    Object serviceManagerObject;
    String number = "1111111111";

    telephonyClass = Class.forName(telephonyName);
    telephonyStubClass = telephonyClass.getClasses()[0];
    serviceManagerClass = Class.forName(serviceManagerName);
    serviceManagerNativeClass = Class.forName(serviceManagerNativeName);

    Method getService = // getDefaults[29];
    serviceManagerClass.getMethod("getService", String.class);

    Method tempInterfaceMethod = serviceManagerNativeClass.getMethod(
            "asInterface", IBinder.class);
    // this does not work
    serviceManagerObject = tempInterfaceMethod.invoke(null,
            new Object[] { new Binder() });

    IBinder retbinder = (IBinder) getService.invoke(serviceManagerObject,
            "phone");
    Method serviceMethod = telephonyStubClass.getMethod("asInterface",
            IBinder.class);
    telephonyObject = serviceMethod
            .invoke(null, new Object[] { retbinder });

    telephonyCall = telephonyClass.getMethod("call", String.class);
    telephonyEndCall = telephonyClass.getMethod("endCall");
    telephonyAnswerCall = telephonyClass.getMethod("answerRingingCall");

    telephonyCall.invoke(telephonyObject, number);

}

Answer 1

通过以下方式

Binder tmpBinder = new Binder();
tmpBinder.attachInterface(null, "fake");
serviceManagerObject = tempInterfaceMethod.invoke(null,  new Object[] { tmpBinder });

您将获得一个ServiceManagerProxy实例，然后下一个问题就行了

telephonyCall.invoke(telephonyObject, number);

Answer 2

我有一个解决方案。变化：

String serviceManagerName = "android.os.IServiceManager";

为：

String serviceManagerName = "android.os.ServiceManager";

Answer 3

是的，这是可能的！我花了24小时进行调查和发现，并找到了“新鲜”的解决方案！

// "cheat" with Java reflection to gain access to
// TelephonyManager's ITelephony getter
Class c = Class.forName(tm.getClass().getName());
Method m = c.getDeclaredMethod("getITelephony");
m.setAccessible(true);
telephonyService = (ITelephony) m.invoke(tm);

任何想要开发其呼叫控制软件的人都会访问这个起点：
http://www.google.com/codesearch/p?hl=en#zvQ8rp58BUs/trunk/phone/src/i4nc4mp/myLock/phone/CallPrompt.java&q=itelephony%20package:http://mylockforandroid%5C.googlecode%5C.com&d=0

有一个项目。并且有重要的评论（和学分）。

简而言之：复制aidl文件，为清单添加权限，复制粘贴源以进行电话管理。

您可以获得更多信息：如果您是root用户，则只能发送AT命令。然后你可以杀死系统进程并发送命令，但你需要重新启动才能让你的手机接收和发送电话。

我很开心！现在我的Shake2MuteCall将获得更新！

反思访问高级电话功能

3 个答案: