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Glide Library for Android

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fbio last edited by

I'm downloading pictures on the gridview. The pictures begin to be downloaded only when the list element appears on the screen. How can they be downloaded (permissive) before they appear on the screen so that the user doesn't watch progressbar in a few seconds?
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nishika last edited by

You're probably starting a load in the element's drawing method. gridView in his adapter. getViewand you get that behavior.
To start loading, you can start loading in the adapter designer earlier. Then it depends on the library. If she's keeping the pictures out of the cash like https://github.com/nostra13/Android-Universal-Image-Loader There's no problem. If you don't, I'll have to go with my implementation.
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How can I consume a .dll library on Android Studio?
Software Programming • c sharp android studio • • Avante

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A DLL was compiled entirely by machine code, instead a jar is compiled at the level of JVM (bytecode).I doubt that there is a tool to convert .DLL a JAR. However, maybe it could serve you. JNI (Java Native Interface).In this post Calling dll C++ from Java there is an example of how to use this feature.
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How to return callback from class to activity
Software Programming • android socketio client • • Trenton

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Interface. Build it and send it to class, and activate it.public class RequestDriveFolder { private RequestDriveListener listener; private RequestDriveFolder(RequestDriveListener listener) { this.listener = listener; } /вызываем метод интерфейса. В него передаем данные/ publiс void requestFolder() Data data = /выполняем нужный запрос/ listener.resultOk(data); } Here's the interface. public interface RequestDriveListener { public void resultOk(Data data); } Activate implementationpublic class MainActivity extends AppCompatActivity implements RequestDriveListener{ private RequestDriveFolder request; /код/ private void request(){ request = new RequestDriveFolder(this); } @Qverride public void resultOk(Data data){ /здесь получаем в активити данные и обрабатываем их/ } }
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Error on Samsung android.widget devices.Editor.performLongClick Android Java
Software Programming • java android samsung • • kalyn

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I've discovered different ways to solve the problem:Using XML you can deactivate the long pressandroid:longClickable="false" In Java you can start a listener OnLongClickautoCompleteTv.setOnLongClickListener(new View.OnLongClickListener() { public boolean onLongClick(View v) { return true; } }); But it is also avoided to show the dialogue of copying options (copy,paste, text selection)If you want to allow the copying options dialog to be displayedautoCompleteTv.setOnLongClickListener(new View.OnLongClickListener() { public boolean onLongClick(View v) { autoCompleteTv.requestFocus(); return false; } });
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Graphic interfaces for the development of mobile web applications
Software Programming • android web programming mobile development mobile applications • • Jolied

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I understand that under "the ability to create graphic web applications interfaces" Do you understand a way similar to the IDE Form Designer to develop WinForm applications?Then I have two news for you.Bad: the way that you've been using for a long time to develop WinForms - when you have a "model of shape," and there's a "potre," and you're soaking the elements from the palitra into shape, leveling them there, etc. - now for some reason you're not very popular.The reasons are simple: this is not a very good way for WEB. There's a lot of CSSs that apply to the set of elements - in general, there's a problem with that method.And the good news is there's a thing like Xamarin, including Xamarin forms. And these things allow both visual designs and mobile development. And this is part of Visual Studio.It's not a web. It's its own set of basic counters, which is for iOS and Android. The business code is common. So the blue dream of all the program players is "written once, works everywhere."But it's quite a complete mobile application. For the sake of fairness, it must be said that today's Flutter also has its own set of counters, and that's what it looks like, like, antique contrasts, and that's why it looks a little different.
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org.json.JSONException: Value
Software Programming • android android studio android async languagetas • • simrah

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The error indicates the value to be processed:org.json.JSONException: ValueThe value indicated by LogCat is not a JSONArray value :@Override protected void onPostExecute(String result) { JSONArray ja = null; try { ja = new JSONArray(result); IdProvincia = ja.getInt(0); } catch (JSONException e){ e.printStackTrace(); } ensures that the next method actually gets a JSONArray response.return downloadUrl(urls[0]);
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This Android SDK requires Android Developer Toolkit new version
Software Programming • windows android sdk eclipse • • yajahira

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Anyway, I'm sick of it, and I've solved the problem with cardinality.I took it. eclipse To hell with dogs and rock. Android Studio, he impressed me right away because it's made on the basis of IntelliJ IDEA from JetBrains♪So the question can be considered to be resolved:) and the answer can be read as correct.
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Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference - In fragments
Software Programming • java android android studio android fragment • • Burma

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The error occurs in this line: lstRellenos.setAdapter(listViewRellenosAdapter); and it is because in the layout that loads the Fragment that is frg_elije_estilo_torta.xmlYou can't find the ListView with Id lstListaRellenosElegirRellenoXMLvistaADevolver = infladorDeLayouts.inflate(R.layout.frg_elije_estilo_torta, GrupoDeLaVista, false); ... ... lstRellenos = (ListView) vistaADevolver.findViewById(R.id.lstListaRellenosElegirRellenoXML);
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Addressing the purchase of goods. Theme of single-dimensional masses
Software Programming • java • • obi

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That's how it ended up. Thanks to the good people. There's only "-" on this platform... Maybe someone needs a response. import java.util.Scanner;class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String[] products = new String[]{"Хлеб ", "Яблоки", "Молоко"}; int[] prices = new int[]{100, 200, 300}; int[] sum = new int[]{0, 0, 0}; int[] count = new int[]{0, 0, 0}; int productNumber = 0; int productCount = 0; int sumProducts = 0; for (int i = 0; i < products.length; i++) { System.out.println((i + 1) + ". " + products[i] + " - " + prices[i]); } while (true) { System.out.println("Введите номер товара или end для выхода из программы"); String input = scanner.nextLine(); if ("end".equals (input)) { break; } try { String[] split = input.split(" "); String a = split[0];//до пробела, чтобы получить номер продукта productNumber = Integer.parseInt(a) - 1; String b = split[1];//после пробела, чтобы получить количество productCount = Integer.parseInt(b); sum[productNumber] = prices[productNumber] * productCount; count[productNumber] = productCount; } catch (NumberFormatException e) { System.out.println("Введите целое число"); continue; } if (productNumber > products.length){ System.out.println("Вы ввели неверный номер товара"); continue; } } System.out.println(" "); System.out.println("Ваша корзина:"); System.out.println("--------------------------------------------------------------------"); System.out.printf("%s %9s %6s %s\n", "Наименование товара | ", "Количество | ", "Цена/за.ед | ", "Общая " + "стоимость"); System.out.println("--------------------------------------------------------------------"); for (int i = 0; i < 3; i++) { if (count[i] != 0) { System.out.printf("%s %19s %15s %14s\n", products[i], count[i], prices[i], sum[i]); } sumProducts += sum[i]; } System.out.println("--------------------------------------------------------------------"); System.out.printf("%57s %d", "Итого: ", sumProducts); System.out.println(" "); System.out.println("Программа завершена."); } }
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Cross-border developments
Software Programming • java android large scale • • amarantha

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The listener, according to the code, is assigned to all the activity:SGD = new ScaleGestureDetector(this, new ScaleListener()); /**/ SGD.onTouchEvent(ev); this - A copy of the activity class.Take a good look at the reverse call method. onScale in class ScaleListener:@Override public boolean onScale(ScaleGestureDetector detector) { scale *= detector.getScaleFactor(); scale = Math.max(0.1f, Math.min(scale, 5.0f)); matrix.setScale(scale, scale); iv.setImageMatrix(matrix); return true; } We're looking for this line: iv.setImageMatrix(matrix);where iv - looking for a picture.In order to reappoint the listener to the table, we need to replace the variables of the table presentation.I don't think the matrix will help with the table, so it's probably gonna have to use something. https://stackoverflow.com/a/3687385 ♪
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Statistics of user libraries and libraries of Visual Studio
Software Programming • c++ visual studio visual c+ • • emerson

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I'd like you to compile lib-fail with /MT or /MTd, depending on the platform. In any case, the lib-fail generation phase will not have a liquor.If you have a backbone library that goes in the form of a source, you'll have it in lib, yeah.Lib collected by another compiler is unlikely to be appropriate, i.e. lib (as opposed to DLL) there is no binary standard. If there's a source, recompute under Visual Studio.
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I can't create File.createTempFile.
Software Programming • android • • gionna

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It's likely that there's no permit in the manifest in his main theater. Try adding them:<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.my.android.selfie" > <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <application .... </application> </manifest>
Know if an app is open through a BroadcastReceiver
Software Programming • android broadc languageastrec lan • • briley

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I usually use this method to release or not a notification to the user.It will return true if the app is closed and false open case. Apply it to your Receiver. /** * Method checks if the app is in background or not */ public static boolean isAppIsInBackground(Context context) { boolean isInBackground = true; ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT_WATCH) { List<ActivityManager.RunningAppProcessInfo> runningProcesses = am.getRunningAppProcesses(); for (ActivityManager.RunningAppProcessInfo processInfo : runningProcesses) { if (processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) { for (String activeProcess : processInfo.pkgList) { if (activeProcess.equals(context.getPackageName())) { isInBackground = false; } } } } } else { List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(1); ComponentName componentInfo = taskInfo.get(0).topActivity; if (componentInfo.getPackageName().equals(context.getPackageName())) { isInBackground = false; } } return isInBackground; }
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Problem in compiling Android Studio : "Could not find com.android.tools.build:gradle"
Software Programming • java android android studio • • jonetta

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The solution is to enable the Maven repository in your project.In the window where the error is displayed when synchronizing your project with .gradle files you can enable it, with a simple click on the message:Enable embedded Maven repository and sync projectYou can also do it this way:In Android Studio using windows, go to the menu: File Settings (on a Mac, Android Studio Preferences) to open the configuration window.Inside this window go to Build, Execution, Deployment Gradle Android Studio , there enabled Enable embedded Maven repository.
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bottom sheet stops responding after the screen turns
Software Programming • java android android fragment material design • • Rossere

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Details of how to work properly with the fragments activated are written in http://developer.android.com/guide/components/fragments.html ♪ You might look like this:You're declaring an interface.public interface FragmentCallbacks { void toggle(String word); } You're interfaced in MainActivity.public class MainActivity ... implements FragmentCallbacks { @Override public void toggle(String word){ if(behavior.getState()==BottomSheetBehavior.STATE_COLLAPSED){ behavior.setState(BottomSheetBehavior.STATE_EXPANDED); //foobarTextView.setText(word); } else behavior.setState(BottomSheetBehavior.STATE_COLLAPSED); } } In the fragment, transform the context into a variable with an interface type. And from the adapter, you call the appropriate method (in this case is one). public class RecycleFragment extends Fragment { private FragmentCallbacks mCallbacksListener; @Override public void onAttach(Context context){ if(context instanceof FragmentCallbacks){ mCallbacksListener = (FragmentCallbacks)context; } else { throw new IllegalStateException("Context must implement FragmentCallbacks interface"); } } private class RvWordsAdapter extends RecyclerView.Adapater<...>{ @Override public void onBindViewHolder(...){ ... holder.infoView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mCallbacksListener.toggle(words.get(position)); } }); } } } Profit. I mean, no behavior and no probe should be tested at the turns, too, the fragment will resign itself and cause the right bulb when the activity re-establishs. And there's a suspicion that you don't need InfoBtnClick, activate yourself to show or hide if anything. ♪N.B. The nuance is that the adapter should be an inner class of the fragment, otherwise it will also be necessary to break the interface (which is likely to be the other) from a fragment to an adapter, or the adapter will have an old link to the context of activation after a turn. Or you're going to have to... re-establish an adapter on Attach... It's not a big deal, but it's a good idea.See also in Wikipedia: https://ru.wikipedia.org/wiki/%D0%98%D0%BD%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F_%D1%83%D0%BF%D1%80%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F https://ru.wikipedia.org/wiki/%D0%92%D0%BD%D0%B5%D0%B4%D1%80%D0%B5%D0%BD%D0%B8%D0%B5_%D0%B7%D0%B0%D0%B2%D0%B8%D1%81%D0%B8%D0%BC%D0%BE%D1%81%D1%82%D0%B8 and further by reference. ♪ ♪
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How are comparisons made in ArrayList.indexOf?
Software Programming • java • • Burma

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Invoking the method equals(Object). Actually, https://docs.oracle.com/javase/8/docs/api/java/util/List.html#indexOf-java.lang.Object- 1:Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element. More formally, returns the lowest index i such that (o==null ? get(i)==null : o.equals(get(i))), or -1 if there is no such index.If you pass null will return the position of the first element nullIf you pass, null will return the position of the first element such that parameter.equals(element).The point is that you don't implement equalsthe implementation used is the default implementation, and that implementation only checks that the two objects are the same instance. If you want to make a comparison, you must implement equals(Object) in your class with the logic you need; e.g.:public boolean equals(Object obj) { if (obj == null) { return false; } if (!obj instanceof Point) { return false; } Point p1 = (Point) obj; return this.x == p1.x && this.y == p1.y; } 1Java API documentation is really informative and if you get used to consulting it you will solve many doubts yourself.

Glide Library for Android

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