I am trying to populate a listView with paired bluetooth devices. I tried doing so with a ListView in my MainActivity and it worked perfectly. However, when I tried it with a ListView in a different activity it crashed the app. I basically want to populate a ListView in a pop-up dialog box.
Here is the code:
deactivate(){
this.controller.reset();
}
deactivateKafkaIOIf I change <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1">
<ListView
android:id="@+id/listDevicesMain"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
to <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.12"
android:gravity="center"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:text="Paired Devices"
android:textSize="25sp" />
<ListView
android:id="@+id/listDevicesDialog"
android:layout_width="match_parent"
android:layout_height="395dp"
android:layout_weight="0.38" />
</LinearLayout>
the code works perfectly fine.
答案 0 :(得分：1)
you calling the wrong list view the id of the list view as you have given is
nand you are trying to call the listview with id
random_permute_generator(iterable, n=5000)
hope this will solve the issue.
答案 1 :(得分：0)
data: {
hashtags: []
},
methods: {
filterHashtags() {
// commented out stuff
// set the data property with the filtered values
this.hashtags = fHashtags;
}
},
created(){
this.filterHashtags();
}
- here you are looking for <li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Art</a>
<ul class="dropdown-menu" role="menu">
<li><a href="UploadArt.aspx">Upload Art</a></li>
<li><a href="SearchForArt.aspx">Search For Art</a></li>
</ul>
</li> in activity layout, so <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<link href="Styles/css/bootstrap.min.css" rel="stylesheet">
<link href="Styles/css/NewStrap.css" rel="Stylesheet" />
<script src="Styles/js/bootstrap.min.js"></script> becomes null. You should add devicelist = (ListView)findViewById(R.id.listDevicesDialog); to showDialog() method and bring there rest of the operations related with searching for paired devices and setting adapter.
You can also call pairedDevicesList from showDialog and pass view where listDevicesDialog is:
listDevicesDialog