Question

我需要访问com.android.internal.telephony.Call。

这样做：

// Initialize the telephony framework
PhoneFactory.makeDefaultPhones (this);

// Get the default phone
Phone phone = PhoneFactory.getDefaultPhone ();

CallManager mCM = CallManager.getInstance ();
mCM.registerPhone (phone);

Call call = mCM.getFirstActiveBgCall();

但不会扩展到初始化框架。

帮我初始化呼叫。

我需要读取调用的状态，如：空闲，主动，持有，拨号，警告，进入，等待，断开连接，断开连接。

Answer 1

您需要使用PhoneStateListener 它将为您提供让您的应用程序监听不同电话状态的工具。您需要将<uses-permission android:name="android.permission.READ_PHONE_STATE"/>放入清单文件

Answer 2

您可以但有一个关键要求：应用程序必须在系统级别签名，这意味着您是制造商。

以下是编写服务的方法，该服务将为前台呼叫状态中的每次更改广播一个意图。

/*
 * This implementation uses the com.android.internal.telephony package: you have
 * to extract the framework classes .jar file from the platform (or the
 * emulator) to compile this code. Also, add the jar file to the external
 * libraries in the Java Build Path/libraries of the android project. </p>
 * 
 * The jar file must match the android version you are building the application
 * for. Because this implementation is using the internal packages it cannot be
 * guaranteed to operate on later versions of android.
 */
public class CallStateNotificationService extends Service {

    private static final String LOG_TAG = CallStateNotificationService.class.getSimpleName();

    private Handler mHandler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            super.handleMessage(msg);

            if (msg.what == 101) {
                CallManager callManager = CallManager.getInstance();
                Call.State state = callManager.getActiveFgCallState();

                Intent intent = new Intent(PhoneIntents.ACTION_PRECISE_CALL_STATE);
                intent.putExtra(PhoneIntents.PRECISE_CALL_STATE, state.name());

                Context context = getApplicationContext();
                context.sendBroadcast(intent);
            }
        }
    };

    @Override
    public void onCreate() {
        super.onCreate();

        try {
            CallManager callManager = CallManager.getInstance();
            if (callManager != null) {
                callManager.registerForPreciseCallStateChanged(mHandler, 101, null);
            } else {
                Log.w(LOG_TAG, "Can't resolve CallManager reference"); //$NON-NLS-1$
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        CallManager callManager = CallManager.getInstance();
        if (callManager != null) {
            callManager.unregisterForPreciseCallStateChanged(mHandler);
        } else {
            Log.w(LOG_TAG, "Can't resolve CallManager reference"); //$NON-NLS-1$
        }
    }

以下是自定义广播意图的定义。

/** Intent action and extra argument names for CallStateNotificationService */
public final class PhoneIntents {

    public static final String ACTION_PRECISE_CALL_STATE = "com.myorg.myapp.CALL_STATE";

    public static final String PRECISE_CALL_STATE = "precise_call_state";
}

要让这段代码编译和链接，你当然需要将程序构建为android发行版本身的一部分，或者通过互联网上其他地方解释的方法导入类框架。

所有这些目前都在正在制作的应用中。

访问com.android.internal.telephony.Call

2 个答案: