如何使我的底部导航视图起作用？

时间：2018-09-19 09:51:10

标签： android xml kotlin bottomnavigationview

我在我的项目中使用了BottomNavigationView，它工作正常。除了我现在在我的3. Activity上添加了BottomNavigationView之外，只有在那里它引发异常，并且我的代码找不到问题。

这是我的活动中的代码：

private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
    when (item.itemId) {                                                            //when Bottom Navigationbar is clicked
        R.id.navigation_Auskunft -> { //Different Activities can be opened
            val intent = Intent(this, fahrplanmap::class.java)        //Opens fahrplanmap Class
            startActivity(intent)
            return@OnNavigationItemSelectedListener true
        }
        R.id.navigation_Abfahrtsmonitor -> {
            val intent = Intent(this, Abfahrtsmonitor::class.java)        //Opens fahrplanmap Class
            startActivity(intent)
            return@OnNavigationItemSelectedListener true
        }
        R.id.navigation_Karte -> {
            val intent = Intent(this, MapsAnzeigeActivity::class.java)        //Opens fahrplanmap Class
            startActivity(intent)
            return@OnNavigationItemSelectedListener true
        }
        R.id.navigation_Meldungen -> {
            return@OnNavigationItemSelectedListener true
        }
        R.id.navigation_weiteres -> {
            return@OnNavigationItemSelectedListener true
        }
    }
    false
}
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.abfahrtsmonitor)
    navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener) //Here it is red undlerined with the error 
....
}

我的xml文件的代码：

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout     xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Abfahrtsmonitor">


<EditText
    android:id="@+id/editText"
    android:layout_width="360dp"
    android:layout_height="47dp"
    android:ems="10"
    android:hint="Suche"
    android:inputType="textPersonName"
    tools:layout_editor_absoluteX="16dp"
    tools:layout_editor_absoluteY="7dp" />

<android.support.v7.widget.RecyclerView
    android:id="@+id/Recycleview"
    android:layout_width="370dp"
    android:layout_height="441dp"
    android:layout_marginBottom="8dp"
    android:layout_marginEnd="4dp"
    android:layout_marginTop="8dp"
    app:layout_constraintBottom_toTopOf="@+id/navigation"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/editText" />

<android.support.design.widget.BottomNavigationView
    android:layout_width="368dp"
    android:layout_height="48dp"
    tools:layout_editor_absoluteX="8dp"
    tools:layout_editor_absoluteY="511dp"
    android:id="@+id/navigation"
    android:layout_marginEnd="0dp"
    android:layout_marginStart="0dp"
    android:background="?android:attr/windowBackground"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:menu="@menu/navigation"/>

和其他活动中的xml文件：

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout     xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".fahrplanmap">

<android.support.design.widget.BottomNavigationView
    android:id="@+id/navigation"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginEnd="0dp"
    android:layout_marginStart="0dp"
    android:background="?android:attr/windowBackground"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:menu="@menu/navigation" />

在其他活动中，我以完全相同的方式定义了它们，并且在那里完全没有问题。

我上传了一张鼠标悬停有错误的图片

https://pagely.com/blog/custom-wordpress-landing-page/

2 个答案:

答案 0 :(得分：1)

可能是因为您从未在*Run-time error '1004': Method 'range' of object '_Global' failed*方法中初始化+------------------------------------------------------------------------------------------------------+---------------------+-------------+-------------------------------------+------------+ | rhOutcome | rhStartTime | rhAccountNo | rhOperatorName | rhCallRef | +------------------------------------------------------------------------------------------------------+---------------------+-------------+-------------------------------------+------------+ | PROCESS_COMPLETE | 19/09/2018 00:02:06 | 106874 | Kevin Jones | 8GVHTXUK | | START_END_CALLOUT_IWORK | 19/09/2018 00:21:44 | 225080 | Claire Miley | SKALW2VR | | CREATE_JOB_SADC | 19/09/2018 01:07:54 | 141116 | Claire Miley | DK9JSTK8 | | QUERY_RESOLVED | 19/09/2018 01:16:40 | 106836 | Kevin Jones | J2RFLY8C | | PROCESS_COMPLETE | 19/09/2018 01:14:01 | 106874 | Kevin Jones | F7K33MPM | | ADDITIONAL_REF_DATA_CAPTURE_END_SAC | 19/09/2018 01:11:12 | 141590 | Claire Miley | CKLYJPDA | | ABORT | 19/09/2018 01:28:37 | 225080 | Claire Miley | UY38NRNL | | PROCESS_COMPLETE | 19/09/2018 01:09:42 | 106874 | Kevin Jones | NQFWC76W | | CALL_PASSED | 19/09/2018 01:05:50 | 70018 | Kevin Jones | TD7DMDN9 | | END_CALL | 19/09/2018 01:29:52 | 310523 | Martyn Jones | W76MWX22 | | CHECK_IN_REMINDER_SAC | 19/09/2018 01:01:01 | 141475 | Claire Miley | GW8YKMGW | | JOB_NOT_COMPLETE | 19/09/2018 01:00:21 | 141116 | Claire Miley | 5JZA6977 | | TIMER_SET_SAC | 19/09/2018 00:57:01 | 310739 | Kevin Jones | D5Z69P4T | | SPAM_EMAIL | 19/09/2018 01:39:52 | 911804 | Margaret Weir | Q6RH25RJ | | GEN_ENQUIRY_CLOSE_SAC | 19/09/2018 00:54:06 | 833694 | Margaret Weir | 8Z88KU94 | | ALARM_ACTIAVTION_CLOSE_SAC | 19/09/2018 00:53:16 | 833694 | Martyn Jones | Q2RTWHFT | | ALARM_ACTIAVTION_CLOSE_SAC | 19/09/2018 00:50:47 | 833694 | Kevin Jones | BXC5UJ6Q | | ABORT | 19/09/2018 00:48:40 | 316084 | Martyn Jones | AUH3Z5H9 | | SEND_DETAILS_BY_SMS | 19/09/2018 00:30:14 | 225110 | Claire Miley | T4TS42X3 | | ABORTED_CALL | 19/09/2018 00:25:09 | 155357 | Kevin Jones | 5G2HZQCA | | JOB_PASSED | 19/09/2018 02:07:20 | 911983 | Margaret Weir | 2648PN38 | | PROCESS_COMPLETE | 19/09/2018 02:07:30 | 106874 | Martyn Jones | H7ND6DWQ | | NO_MESSAGE_DATA | 19/09/2018 02:09:03 | 310169 | Kevin Jones | Z694XH4V | | JOB_NOT_COMPLETE | 19/09/2018 00:24:11 | 141116 | Claire Miley | TJBWRBQY | | END_CALL | 19/09/2018 00:17:42 | 310523 | Kevin Jones | T8WPXCU6 | | CODE_NOT_WORKING_BLUE_RESOLVED | 19/09/2018 02:15:21 | 106836 | Kevin Jones | 63NHPC7N | | OOH_NO_MESSAGE_DATA | 19/09/2018 02:19:10 | 310169 | Martyn Jones | 62RX9BP3 | | ABORTED_CALL | 19/09/2018 00:15:49 | 155357 | Martyn Jones | VSAMDWDG | | END_CALL | 19/09/2018 00:14:25 | 310523 | Kevin Jones | YCAWLGBE | | END_CALL | 19/09/2018 00:11:03 | 310523 | Kevin Jones | GXRCMQHU | | ABORT | 19/09/2018 00:10:10 | 140014 | Claire Miley | BQ72RRNR | | CALL_ANSWERED_PASSED_SAC | 19/09/2018 00:09:56 | 31206 | Martyn Jones | LDTMFJSS | | END_CALL | 19/09/2018 00:05:24 | 310523 | Martyn Jones | VJLFGBL6 | | JOB_UPDATE_DATA | 19/09/2018 00:03:01 | 911804 | Margaret Weir | 2L4WHNQB | | TIMER_SET_SAC | 19/09/2018 00:01:17 | 310739 | Martyn Jones | XY84B498 | | PROCESS_COMPLETE | 19/09/2018 01:18:46 | 106874 | Kevin Jones | ZYGREQ7D | | SPAM_EMAIL | 19/09/2018 01:23:21 | 911804 | Margaret Weir | Z9DZNN2V | | END_CALL | 19/09/2018 01:28:51 | 310523 | Kevin Jones | 3YY8YPDB | | END_CALL | 19/09/2018 01:29:34 | 310523 | Kevin Jones | AGJP82H8 | | NO_CALLOUT_REQUIRED | 19/09/2018 01:07:54 | 141116 | Claire Miley | DK9JSTK8 | | ETA_ADVICE_GIVEN_SAC | 19/09/2018 01:30:14 | 911968 | Margaret Weir | PKTXU2JX | | END_CALL | 19/09/2018 01:37:49 | 310523 | Martyn Jones | AP7CUYA4 | | ABORTED_CALL | 19/09/2018 01:55:06 | 155357 | Martyn Jones | MZHEW6SU | | JOB_NOT_COMPLETE | 19/09/2018 02:13:31 | 141116 | Claire Miley | BAYYPWJZ | | MESSAGE | 19/09/2018 02:56:18 | 106871 | Martyn Jones | YV3AXSWP | | ABORT | 19/09/2018 02:19:16 | 140014 | Claire Miley | 9C82J6M5 | | NO_MESSAGE_SAC | 19/09/2018 02:23:19 | 106871 | Kevin Jones | AVTASU7U | | NO_MESSAGE_SAC | 19/09/2018 02:24:03 | 106871 | Kevin Jones | JNE3J723 | | MESSAGE | 19/09/2018 02:24:46 | 106871 | Kevin Jones | F8MVAHSP | | DECLINE_TO_LEAVE_DETAILS_SAC | 19/09/2018 02:27:09 | 141590 | Claire Miley | AKYGGB6M | | MESSAGE | 19/09/2018 02:29:11 | 106866 | Martyn Jones | 7VEC5EY3 | | TECH_SUPPORT_NEW_PATCH_FAILED | 19/09/2018 02:29:11 | 911248 | Margaret Weir | ZCXZD8WG | | END_CALL | 19/09/2018 02:42:46 | 310523 | Kevin Jones | G2RRM5BT | | MESSAGE | 19/09/2018 03:18:47 | 106871 | Kevin Jones | QEG7CUWC | | OOH_FAULT_CLS | 19/09/2018 02:46:46 | 911667 | Margaret Weir | 8UW2M9LH | | NO_MESSAGE_SAC | 19/09/2018 02:48:24 | 106871 | Martyn Jones | CZWBPZ9U | | NO_MESSAGE_SAC | 19/09/2018 02:49:05 | 106871 | Kevin Jones | QLHT6UBT | | MESSAGE | 19/09/2018 02:49:41 | 106871 | Martyn Jones | N4WVGDVM | | ABORT | 19/09/2018 02:52:53 | 190001 | Kevin Jones | 6GLUHVSG | | END_CALL | 19/09/2018 01:32:35 | 310523 | Martyn Jones | KZ759EYC | | ABORTED_CALL | 19/09/2018 01:55:00 | 155357 | Martyn Jones | CBT8HUFL | | END_CALL | 19/09/2018 02:55:05 | 310523 | Kevin Jones | D3XMG9W6 | | ABORT | 19/09/2018 01:56:41 | 310470 | Martyn Jones | C3BRA65U | | TIMER_SET_SAC | 19/09/2018 01:59:10 | 310739 | Martyn Jones | 54Q67QUK | | JOB_UPDATED | 19/09/2018 04:48:12 | 141116 | Claire Miley | Y8T6SZ4U | | ABORT | 19/09/2018 02:00:05 | 911626 | Margaret Weir | V2Y5M3LS | | DETAILS_PASSED_DATA | 19/09/2018 02:02:58 | 141371 | Claire Miley | J6HRFM8F | | SAVE_AND_CLOSE | 19/09/2018 03:01:13 | 310827 | Kevin Jones | 6A6Q9KYU | | TIMER_SET_SAC | 19/09/2018 03:01:50 | 310739 | Martyn Jones | 9CV8DWXN | | MESSAGE | 19/09/2018 03:07:20 | 106871 | Martyn Jones | U9BC3GNC | | JOB_PASSED | 19/09/2018 03:09:08 | 911982 | Margaret Weir | GHUQWW3T | | CREATE_JOB_SADC | 19/09/2018 03:16:13 | 141116 | Claire Miley | 8YT5XA5U | | JOB_NOT_COMPLETE | 19/09/2018 02:37:41 | 141116 | Claire Miley | 2FEBSCJJ | | ABORT | 19/09/2018 03:24:30 | 140014 | Claire Miley | GZ2CYXJH | | QUERY_RESOLVED | 19/09/2018 04:23:11 | 106836 | Martyn Jones | GSA6QACH | | ABORT | 19/09/2018 02:53:09 | 190001 | Martyn Jones | 2FLFK95G | | NEW_ORDER | 19/09/2018 04:48:47 | 310722 | Martyn Jones | BMW4G3WA | | OOH_NO_MESSAGE_DATA | 19/09/2018 02:14:42 | 310169 | Martyn Jones | RZB86GEC | | CREATE_JOB_SADC | 19/09/2018 04:54:19 | 141116 | Claire Miley | Q2YWAJP7 | | NEXT_PRODUCT | 19/09/2018 05:09:32 | 310169 | Martyn Jones | RMD3KLZT | | END_CALL | 19/09/2018 03:08:42 | 310523 | Kevin Jones | YRY52DEU | | NO_CALLOUT_REQUIRED | 19/09/2018 03:16:13 | 141116 | Claire Miley | 8YT5XA5U | | CLOSE_APPLICATION | 19/09/2018 05:00:25 | 911626 | Margaret Weir | 8J6T9BFK | | NFU_ALREADY_ACCEPTED_SAC | 19/09/2018 03:23:22 | 911982 | Margaret Weir | V4G3BD2X | | SEND_SMS | 19/09/2018 05:00:25 | 911626 | Margaret Weir | 8J6T9BFK | | ALL_JOBS_UPDATED | 19/09/2018 04:48:12 | 141116 | Claire Miley | Y8T6SZ4U | | ABORT | 19/09/2018 05:28:35 | 225080 | Claire Miley | D9TUGKZH | | JOB_UPDATED | 19/09/2018 04:54:18 | 141116 | Claire Miley | Q2YWAJP7 | | END_CALL | 19/09/2018 03:25:26 | 310523 | Martyn Jones | 2WNTZN73 | | END_CALL | 19/09/2018 05:26:40 | 310523 | Martyn Jones | GB2MK7RW | | TIMER_SET_SAC | 19/09/2018 03:57:51 | 310739 | Kevin Jones | MTXW2RPJ | | JOB_NOT_COMPLETE | 19/09/2018 04:08:21 | 141116 | Claire Miley | KXCN3QSF | | ADDITIONAL_REF_DATA_CAPTURE_END_SAC | 19/09/2018 04:12:04 | 141590 | Claire Miley | LNQVW7NJ | | SEND_EMAIL | 19/09/2018 05:00:25 | 911626 | Margaret Weir | 8J6T9BFK | | SEND_SMS | 19/09/2018 05:00:25 | 911626 | Margaret Weir | 8J6T9BFK | | NEW_ORDER | 19/09/2018 04:28:29 | 310722 | Martyn Jones | 6CFPCDD6 | +------------------------------------------------------------------------------------------------------+---------------------+-------------+-------------------------------------+------------+ 。

在BottomNavigationView方法内部：

onCreate()

然后：

onCreate()

此外，请勿重复使用相同的ID：BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);

以下是使用navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener) 的一个很好的示例：https://github.com/hitherejoe/BottomNavigationViewSample/

答案 1 :(得分：1)

我认为您的导入语句有问题。

似乎在navigation和abfahrtsmonitor.xml中都找到了ID为activity_fahrplanmap.xml的元素。由于它们都是导入的，因此无法导入您的BottomNavigationView的分辨率（分辨率模糊）。

如果同时需要导入abfahrtsmonitor.xml和activity_fahrplanmap.xml，则应在其中一个文件中重命名ID为navigation的元素。

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