如何在Android中挂断电话？

我正在开发一个应用程序,其中我们需要的一件事是控制传出呼叫,至少能够从我们的应用程序中阻止它.

我尝试过使用Intent.ACTION_CALL现有的活动:

Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phoneNumber)); 
startActivity(callIntent); 

但是通过API似乎不允许停止呼叫.

你能建议一些解决方法吗？

例如:在通话期间启用飞机模式？只是一个例子; 这个黑客对我不起作用.

BroadcastReceiver已经提到了在a中捕获拨出呼叫,如果你想在拨号之前结束通话,这绝对是最好的方法.

但是,一旦拨号或通话,该技术就不再适用.我到目前为止挂断的唯一方法是通过Java Reflection完成.由于它不是公共API的一部分,因此您应该小心使用它,而不是依赖它.对Android内部组成的任何更改都将有效地破坏您的应用程序.

Prasanta Paul的博客演示了如何实现它,我在下面总结了这一点.

获取ITelephony对象:

TelephonyManager tm = (TelephonyManager) context
        .getSystemService(Context.TELEPHONY_SERVICE);
try {
    // Java reflection to gain access to TelephonyManager's
    // ITelephony getter
    Log.v(TAG, "Get getTeleService...");
    Class c = Class.forName(tm.getClass().getName());
    Method m = c.getDeclaredMethod("getITelephony");
    m.setAccessible(true);
    com.android.internal.telephony.ITelephony telephonyService =
            (ITelephony) m.invoke(tm);
} catch (Exception e) {
    e.printStackTrace();
    Log.e(TAG,
            "FATAL ERROR: could not connect to telephony subsystem");
    Log.e(TAG, "Exception object: " + e);
}

结束通话:

telephonyService.endCall();

试试这个:

(我使用Reflection来访问高级电话功能并修改某些内容)

// required permission 

try {
    //String serviceManagerName = "android.os.IServiceManager";
    String serviceManagerName = "android.os.ServiceManager";
    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;

    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);

    Binder tmpBinder = new Binder();
    tmpBinder.attachInterface(null, "fake");

    serviceManagerObject = tempInterfaceMethod.invoke(null, tmpBinder);
    IBinder retbinder = (IBinder) getService.invoke(serviceManagerObject, "phone");
    Method serviceMethod = telephonyStubClass.getMethod("asInterface", IBinder.class);

    telephonyObject = serviceMethod.invoke(null, retbinder);
    //telephonyCall = telephonyClass.getMethod("call", String.class);
    telephonyEndCall = telephonyClass.getMethod("endCall");
    //telephonyAnswerCall = telephonyClass.getMethod("answerRingingCall");

    telephonyEndCall.invoke(telephonyObject);

} catch (Exception e) {
    e.printStackTrace();
    Log.error(DialerActivity.this,
                "FATAL ERROR: could not connect to telephony subsystem");
    Log.error(DialerActivity.this, "Exception object: " + e);
}

android.provider.Settings.System.putInt(getContentResolver(),
        android.provider.Settings.System.AIRPLANE_MODE_ON, 1);

Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
intent.putExtra("state", 1);
sendBroadcast(new Intent("android.intent.action.AIRPLANE_MODE"));
sendBroadcast(intent);
android.provider.Settings.System.putInt(getContentResolver(),
        android.provider.Settings.System.AIRPLANE_MODE_ON, 0);

intent.putExtra("state", 0);
sendBroadcast(new Intent("android.intent.action.AIRPLANE_MODE"));
sendBroadcast(intent);