Android 判断是否在通话中

/**
 * 是否正在电话通话中
 */
private boolean phoneIsInUse() {
    TelephonyManager mTelephonyManager = (TelephonyManager) activity.getSystemService(Context.TELEPHONY_SERVICE);
    int state = mTelephonyManager.getCallState();
    return state != TelephonyManager.CALL_STATE_IDLE;
}

private boolean phoneIsInUse() {
    boolean phoneInUse = false;
    try {
        ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));
        if (phone != null) phoneInUse = !phone.isIdle();
    } catch (RemoteException e) {
        Log.w(TAG, "phone.isIdle() failed", e);
    }
    return phoneInUse;
}

public static boolean phoneIsInUse(Context context){
    TelecomManager tm = (TelecomManager)context.getSystemService(Context.TELECOM_SERVICE);
    return tm.isInCall();
}