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open fragment from activity

F
fbio last edited by

As in Android from page Activity Open the page Fragment?
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rielyn

With help Intent♪

From Activity:

Intent intent = new Intent(this, myFragment.class);
startActivity(intent);

From Fragment:

Intent intent = new Intent(getActivity(), myFragment.class);
startActivity(intent);

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Error when I try to open a new activity
Software Programming • java android android studio android ac languagetivity • • Pearlaqua

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K

Well, you didn't specify which error, but what seems to be happening is opening only to HomeSpanishActivity and never the other, since you are using the same method changeActivity.You can do as follows by changing this method:public void changeActivity(View view) { Intent it; if (view.getId() == R.id.btnOptionIngles) { it = new Intent(this, HomeEnglishAcitivity.class); } else { it = new Intent(this, HomeSpanishActivity.class); } startActivity(it); } So you will check which button has been pressed and select the Activity correct.
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Presentation of the active element at the opening of the site
Software Programming • javascript • • kalyn

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We need to. JSSince you're using JQuery:$('.b1').addClass('active'); Class active:.active{ visibility: visible !important; } Add compression processor li:$('.content').find('div').addClass('hide'); //прячем все остальные div var targetBlock = $(this).data("content"); //выбираем элемент $('.'+targetBlock).removeClass('hide'); //убираем класс hide In fact, I advise you to use your work. http://getbootstrap.com/ ♪ There's a ready you need. https://www.w3schools.com/bootstrap/bootstrap_tabs_pills.asp ♪
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Simulate transicion of ViewPager with fragments but in activities
Software Programming • android android intent • • fbio

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EntryoverridePendingTransition(R.anim.left_in, R.anim.left_out); OutputoverridePendingTransition(android.R.anim.slide_in_left, android.R.anim.slide_out_right); Animationsleft_in.xml<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <translate android:fromXDelta="50%p" android:toXDelta="0" android:duration="@android:integer/config_mediumAnimTime"/> <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="@android:integer/config_mediumAnimTime" /> </set> left_out.xml<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <translate android:fromXDelta="0" android:toXDelta="-50%p" android:duration="@android:integer/config_mediumAnimTime"/> <alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="@android:integer/config_mediumAnimTime" /> </set>
A

When the Activity is re-opened, the variable stream is empty in the notification
Software Programming • android • • Amritpal

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You have to go. intent Put the variable in. streamIf you activate it, it'll be opened by this intent. Intent intent = new Intent(this, Player.class); intent.putExtra("stream", stream);
Spring Boot JPA
Software Programming • java spring hibernate spring boot jpa • • Mystic

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The problem is you're waiting for Spring to do more work than he can do:If you have a generic controller to create specific controllers, something likeclass AnswerController extends CrudController<Answer> {...} Java in compiling time will clarify the parameter as of the Answer and Spring class will simply see that class. You don't have to know that class has daughters, or what difference does one class of another.So... always. You will use the Answer class to make mapping.If we want to be purists, it is considered a bad idea to use classes entity (persistent model) in the controller layer, you should actually disconnect your API from your model using a DTO class:class AnswerController extends CrudController<AnswerDTO> {...} For example, this DTO could have all the attributes of Answer and his daughters, grouping all possible options. Then, in your controller, you could see which fields have been filled and create an instance of the entity you need.
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How to sort the mass without using comparisons?
Software Programming • java • • guilherme

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But how do we separate the mass without using comparisons?You can't change the code at all in this task.Let's see the fragment. if (a[i] > a[i + 1]) { c = a[i]; a[i] = a[i + 1]; a[i + 1] = c; } After implementation a[i] <= a[i+1]if you need to change them. You can do that. c = a[i] + ((a[i+1] - a[i]) & ((a[i+1] - a[i]) >> 31)); a[i+1] = a[i+1] + a[i] - c; a[i] = c; As you can see. if No.
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Replacement of words in line
Software Programming • java construction • • yajahira

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You're shutting down the file that you're taking. output.close(); This line needs to be written after the whole cycle. And here's the code.public static void main(String [] args) throws IOException { if(args.length!=2){ System.out.println("Enter the command-line arguments"); System.exit(1); } File sourseFile = new File(args[0]); if(!sourseFile.exists()){ System.out.println("Source file "+args[0]+" does not exist"); System.exit(2); } File targetFile = new File(args[1]); if(targetFile.exists()) System.out.println("Target file "+args[1]+" already exists"); Scanner input = new Scanner(sourseFile); PrintWriter output = new PrintWriter(targetFile); int k=0; while(input.hasNext()){ String s = new String(input.next()); StringBuffer s1 = new StringBuffer(); int sz = s.length(); if(sz<5) { for(int i=0;i<sz;i++) s1.append("*"); s1.append('\n'); output.print(s1.toString()); } else output.print(s+'\n'); } output.close(); }
Transfer the variable from Activity in Fragment
Software Programming • java android android fragment • • Marcee

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I will propose such a solution to your task.♪ MainActivity We'll set up an interface:interface MainActivityCommunicator{ void onWeekChanged(int numberOfWeek); } MainActivityCommunicator mSendToFragment; In method onNavigationItemSelected Add the line:public boolean onNavigationItemSelected(int itemPosition, long itemId) { ... mSendToFragment.onWeekChanged(itemPosition); ... } ♪ ContentFragmentWe're doing the interface. MainActivityCommunicatorpublic class ContentFragment extends ... implements MainActivity.MainActivityCommunicator{ ... @Override public void onWeekChanged(int numberOfWeek) { //Если выбранная неделя уже отображается, то return if(numberOfWeek == mCurrentSelectedWeek){ return; } //Тут меняем отображение недели } ... UPD:Indicate that this fragment is being implemented by this interface:@Override public void onAttach(Activity activity) { super.onAttach(activity); Context context = getActivity(); ((MainActivity) context).mSendToFragment = this; } BothnullI'm referring to the fragment when it becomes Detach:@Override public void onDetach() { super.onDetach(); Context context = getActivity(); ((MainActivity) context).mSendToFragment = null; }
When I press the button in an attempt to open the next activity, the annex is flying.
Software Programming • java android kotlin • • Demir

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You. this I don't know. Contextval intent = Intent(this@MainActivity, Donation::class.java) startActivity(intent)
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When Fragment is re-established, Activity is not tied to it.
Software Programming • c sharp android android fragment xamarin.android • • courtlanda

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The problem was in this line:static View view;Statistic variables, stored fragments, activity cannot be declared because they will remain remembered until the completion of the annex.Code Fragment1 public class Fragment1: Fragment { View view; public static Fragment1 NewInstance() { var fragment = new Fragment1() { }; return fragment; } public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { view = inflater.Inflate(Resource.Layout.fragmentLayout, container, false); Button buttonNewActivity = view.FindViewById<Button>(Resource.Id.button1); buttonNewActivity.Click += ButtonNewActivity_Click; Button buttonCloseActivity = view.FindViewById<Button>(Resource.Id.button2); buttonCloseActivity.Click += ButtonCloseActivity_Click; return view; } private void ButtonCloseActivity_Click(object sender, EventArgs e) { //FragmentManager.PopBackStackImmediate(); Activity.Finish(); } private void ButtonNewActivity_Click(object sender, EventArgs e) { Intent intent = new Intent(Activity, typeof(Activity2)); StartActivity(intent); } } Code Activity1 public class Activity1 : Activity { protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); if (this.Resources.Configuration.Orientation != Android.Content.Res.Orientation.Landscape) { var fragment = Fragment1.NewInstance(); FragmentManager.BeginTransaction().Add(Android.Resource.Id.Content, fragment).Commit(); } else Finish(); } } New activity makes sense if it sets a new marking under fragments by: SetContentView()♪ For example, if there were two vertical columns with fragments and three columns on the new screen.
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What's the answer from the server?
Software Programming • android • • fbio

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Usually such a function is performed via Socket or WebSocket.So the same server is cut off by a sket connection and all taxiists and all customers.Accordingly, all accessed to the server can both send and receive data from it.I mean:The client sent a taxi request through the juice. Server processed the request, gave the same sockets the order of all taxis in the area. The taxi driver saw the order, pressed for the order and sent a request to the server for the order. Server saw a request from a taxi driver and gave it to the client. The client picked this up in the annex, UI updated and the taxiste information is available to the client. Until such time as the order is not accepted in the same manner by time the taxier may provide data to the client on its location, for example. http://www.javatpoint.com/socket-programming In more complex options, it would be better to create a separate flow under each sket connection, use the OBD on the server to some permanent data and so on.
J

Code failure on whether x is multiple and, in Java
Software Programming • java • • jonetta

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Just to complete what is already recommended by Jorge ( apparently from several questions), I will explain your mistakes, and yes, you will have to read basic concepts of programming and especially java.- Line 9: tells me ) expected. Not a statement. ; expected. Cannot find symbol. Symbol: method println (String). Location: variable out of type PrintStream. I have no idea what you mean. 9. System.out.println ("Dividimos x entre y y el resultado es": +(x/y)); and yes... look where your ", compared to where it should be closed. It's a clear kind of mistake. : it is nothing for language, so if it is outside the quotation marks, it is wrong.Plus your code says printIn, when it should be println.It should be: 9. System.out.println ("Dividimos x entre y y el resultado es: " +(x/y)); - Line 10: Illegal start of expression. Unexpected type. Required variable. Found: value. I don't understand why you're telling me this if a physique I know it starts like this and also the variable if it is set, as They're on x e and.10. if (x%y=0)) { symbol = is used to match a variable to a value (either constant or other variable). To know if two values are equal, it is used ==. Furthermore, there is a problem that operator runs before another (reviews concepts about that). It should be:10. if ( (x%y) == 0)) { - Line 11: cannot find symbol. Symbol: variable print. Location: class System. I don't know what you mean.11. System.print.out ("El primer número es múltiplo del segundo"); If you did before System.out.println, because now you do something at reves, and do not understand that the System class does not have a print object? (but if it has an object out, which in turn has a print method).- Line 13: else without if. I don't understand why you tell me this if the if is higher. This mistake, it's not a problem in itself, is given because it makes you mistake the if line when you fix that, this one fixes itself.Please read about the concepts of language...
K

Android: By calling and closing an activity from a fragment, the context of the fragment is null?
Software Programming • android • • kalena

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Context from a Fragment You can get it through http://developer.android.com/reference/android/app/Fragment.html#getActivity%28%29 . http://developer.android.com/reference/android/app/Fragment.html#getActivity%28%29 Return the Activity associated with Fragment.Activity is a Context (Activity extends from Context).I have a fragment that calls an activity, closing the activity and back to my fragment the context is nullI think the problem is the variable you have like Context, maybe you use the context of the activity you opened and then closed, I suggest you get the context within the Fragmente by http://developer.android.com/reference/android/app/Fragment.html#getActivity%28%29 .By obtaining the context in this way you will get the context of the Activity associated with Fragment whose value would not be null.
A

How to remove the contents file? Like Download
Software Programming • android • • authera

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First we remove all contents - then the folder itself. For folded folders, we use a lecture:public static boolean deleteDir(File dir) { if (dir.isDirectory()) { for (File child : dir.listFiles()) { boolean success = deleteDir(child); if (!success) { return false; } } } return dir.delete(); } Use:if (deleteDir(Environment.getExternalStorageDirectory() + "/Download")) { //удалено успешно } Bonus: FileUtils.deleteDirectory
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Repatriation of an unmarked type from a map
Software Programming • java • • Rossere

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I got it! Thank you all! Output - Method:<T> T get(Class<T> clazz) { return (T) holder.get(clazz); }

open fragment from activity

From Activity:

From Fragment:

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What's the answer from the server?
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Android: By calling and closing an activity from a fragment, the context of the fragment is null?
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How to remove the contents file? Like Download
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