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focus item listview

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nishika last edited by

Hello! Is there any method by which to find out which item the ListView was focused?
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Amritpal last edited by

mListView.getSelectedItem() and following it in the documentation, two methods should help you.
http://developer.android.com/reference/android/widget/AdapterView.html#getSelectedItem() - Documentation
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You can get when there is no connection by : https://developer.android.com/reference/android/net/ConnectivityManager.html#EXTRA_NO_CONNECTIVITY : indicates if there is a complete lack of connectivity, that is, there is no network available.if(intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, Boolean.FALSE)) { Log.i("Network", "No existe conectividad!"); } According to the above, this is a kind of example:public class WifiReceiver extends BroadcastReceiver { public void onReceive(Context context, Intent intent) { if(intent.getExtras() != null) { NetworkInfo ni = (NetworkInfo) intent.getExtras().get(ConnectivityManager.EXTRA_NETWORK_INFO); if(ni != null && ni.getState() == NetworkInfo.State.CONNECTED) { Toast.makeText(context,"Wifi enabled " + ni.getTypeName(),Toast.LENGTH_LONG).show(); } else if(intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, Boolean.FALSE)) { Toast.makeText(context,"Wifi disabled",Toast.LENGTH_LONG).show(); } } } Don't forget to register BroadcastReceiver:<receiver android:name=". WifiReceiver"> <intent-filter> <action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> </intent-filter> </receiver>
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For List Use it. https://msdn.microsoft.com/ru-ru/library/ms668604(v=vs.110).aspx he inherits from INotifyCollectionChangedwhich is intercepted in WPF as a change of collection, but if you need to use it ListYou can inherit from him and INotifyCollectionChangedby redefining the methods of insertion/depositioning
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ArrayAdapter as a last parameter, sheets may be accepted String♪ I mean, you need to create List<String> of yours. ArrayList<Elements>by pulling out of element firstname♪ Kotlin can be done with help map:val deSerial = gson.fromJson(result.value, Data::class.java) val adapter = ArrayAdapter(this, android.R.layout.simple_list_item_1, deSerial.elements.map { it.firstname }) listView.adapter = adapter
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Set the adapter as follows:Parcelable state = yourListView.onSaveInstanceState(); yourListView.setAdapter(adapter); yourListView.onRestoreInstanceState(state); Thus, ListView If a new adapter is installed, it will keep its current position closed. It's just that when you add a new element to the list, you don't have to turn the whole thing around. ListView From beginning to end.Next, you're gonna need one element down, so that's the method. http://developer.android.com/reference/android/widget/AbsListView.html#smoothScrollToPosition(int) as you have already been advised in the above response.If the animation of scrulling is undesirable (and you will receive it when using the above method), then:yourListView.post(new Runnable() { @Override public void run() { yourListView.setSelection(pos); View v = yourListView.getChildAt(position); if (v != null) { v.requestFocus(); } } });
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You'll. http://docs.jboss.org/hibernate/core/3.5/reference/en/html/querysql.html
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There's one ; where you shouldn't there, you're forwithout doing anything (it ends in ; without having a block to run), there opens a single block isolated, without belonging to for where obviously takes the value i already last incremented in for and it is worth 2, the value that indicates that it must close the loop, hence it will access the index using this variable and falls off the track. This works:import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int[] vet = new int[2]; for (int i = 0; i < 2; i++) { System.out.println("Digite um numero"); vet[i] = sc.nextInt(); } for (int i = 0; i < 2; i++) System.out.println(vet[i]); } } See https://ideone.com/xZTYAz . And https://repl.it/@maniero/ForBlock . Also https://github.com/maniero/SOpt/blob/master/Java/Syntax/ForBLock.java .Note the detail that I declared the variable within the loop. Some people find it silly to do this, others make the statement out because they learned wrong that it is better to do before (the best is to do as close to their use, with the least possible scope), and if they had made the statement in for would make more obvious mistake in this situation and would already happen in the compilation that is much better. It has recommendations that seem fresh, but they exist because they are useful.
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So, I put a part of my code:if(data.probarEquiv1()==3) { JOptionPane.showMessageDialog(null, "Error a Primera Divisa"); PrimeraDivisaTXT.setFocus(); PrimeraDivisaTXT.selectAll(); } I mean the picture we want to focus on. PrimeraDivisaTXTThis code makes it if the user enters the data Equiv1 introduces the system badly. JOptionPane that there is a mistake and then takes the focus on the picture where the error is (i.e. the picture PrimeraDivisaTXT)
In a list of lists, how to sum each item from each list with the item of their respective position?
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Well, in this case the lists can have different sizes, so we need to fill the positions of the smaller lists and then add the corresponding values. We can do this using zip_longest with fillvalue to fill the smallest lists:x = [[1,2,3,4,5],[6,7,8,9]] from itertools import zip_longest y = [sum(x) for x in zip_longest(*x, fillvalue=0)] print(y) # [7, 9, 11, 13, 5]
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According to the replies https://stackoverflow.com/q/30075827/3212712 Google wants the icons of the sky to always be white and, uh, we don't let it change, and even stops all the attempts to do it. The only one found https://stackoverflow.com/a/33316669/3212712 - Replacement of the colour of the sky by sulphur to the gradient 6In stylevalues-v23/styles.xml <item name="android:windowLightStatusBar">true</item> And in the code:View yourView = findViewById(R.id.your_view); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (yourView != null) { yourView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR); } }
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You can decide two options, let him live and resign using some kind of solution, for example. https://github.com/rovkinmax/RxRetainFragment either kill him unsubscribe() Total onStop or onPause
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LISTVIEW ÍTEM EXTRA UNDER
Software Programming • android android studio android listview • • yajahira

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That "hidden" item is actually a WebView that you have inside CoordinatorLayout, remove the WebView:<WebView android:id="@+id/webView1" android:layout_width="fill_parent" android:layout_height="fill_parent"/> Generally the WebView in design view is painted grey.

focus item listview

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