2024 Call mainactivity method from fragment

Call mainactivity method from fragment

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August undefined, 2024

WebWhen I click the on one of the button the data of the current fragment should be updated. Therefore, I implemented some callback methods in the activity. But unfortunatly, … WebMar 22, 2024 · Simply you can call like this: Fragment fragment = new FragmentName (); FragmentManager fragmentManager = ( (Activity) context).getFragmentManager (); fragmentManager.beginTransaction ().replace (R.id.fragment_main, fragment).commit (); Share Improve this answer Follow edited Mar 22, 2024 at 7:03 answered Mar 22, 2024 …

How to call fragment from an activity in android? - Stack Overflow

WebSep 12, 2024 · Your solution is pretty simple, find the fragment instance assuming you have already added it, and call your method as follow: HomeFragment homeFragment = (HomeFragment)getSupportFragmentManager ().findFragmentByTag ("myFragmentTag"); if (homeFragment != null) //check for null homeFragment.addUserLineInfoFragment (); … WebDec 2, 2024 · If you want to access your method from Activity to Fragment. You do not need any interface. You just need to call the method from the fragment instance. However, if you want access Activity's method, you may use the interface. public interface MyInterface { void testMethod (); } And in your activity, link table excel to word

How to call fragment from the ... - Stack Overflow

WebDec 21, 2024 · Fragment2 contains the method deselect. This method works fine, but am not able to call it from the MainActivity. To solve this I have tried using an interface, but without success. The second way is as implemented in the code provided below. I am trying to call deselect in the onOptionsItemSelected method, but it tells me that fragment2 == … Web如果有人建议我在编码方面哪里出错错误消息： java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.res.TypedArray.getResourceId(int, int)' on a null object reference at android.app.ActivityThread.performLaunch. 我得到getResourceID的空指 … WebJun 6, 2016 · You can't call Fragments via Intent. Fragment is a part of an FragmentActivity. All in all Fragment is a content not container, so you need to create a FragmentActivity and add Fragment (Fragment1) in that, and then call on your onClick (), Intent intent = new Intent (MainActivity.this, SomeFragmentActivity.class); startActivity … link table from one excel sheet to another

How to call an activity method from a fragment in Android App?

WebDec 1, 2024 · I simply want to call a method from a fragment in my MainActivity (parent). But as soon as I try to call the method I get an NullPointerException. Attempt to invoke virtual method 'void com.example.fragmenttest.TestFragment.testMethod ()' on a null object reference Here is what I do in the onCreate of the MainActivity: WebApr 29, 2024 · Basically somewhere in your code you called ( (MainActivity) getActivity ()).openGallery () while the fragment is not attached to activity, hence parent context return null. You should not assume that activity context is always available because more often than not the fragment gets detached and reattached again. You should link table in access hours for mattress firm today

"WebAug 21, 2024 · The Fragment captures the interface implementation during its onAttach () lifecycle method and can then call the Interface methods in order to communicate with the Activity. The host... " - Call mainactivity method from fragment

Call mainactivity method from fragment

Call method in Fragment from MainActivity - Stack Overflow

WebNov 10, 2024 · 2. If you want a good design you need to: Create a ViewModel. Ask for the Activity ViewModel in the Fragment so you will have the same ViewModel as the one from the Activity. Call a method in the ViewModel, from the Activity, which will update a LiveData. Observe the LiveData in the Fragment. WebSep 20, 2024 · I find it very difficult to call the InsertSlider in the MainFragment from the BottomSheetDialog. Any help and thanks. In the BottomSheet : public class AdminBottomSheetMainSave extends BottomSheetDialogFragment { // One Method I don.t Know How To Work //((MainFragment)getContext()).InsertSliders(new …

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WebCalling custom class/method in android moatist 2014-06-18 05:32:46 574 1 java/ android/ xml/ eclipse/ parsing WebJul 18, 2024 · In order to launch an activity from your fragment, override the onViewCreated () method in your fragment. Inside it, type: buttonImage2.setOnClickListener { val intent = Intent (context, SoalActivity::class.java) startActivity (intent) } And that's it :) Share Improve this answer Follow answered Jul 18, 2024 at 12:46 Lheonair 416 3 13

WebMar 18, 2013 · mFragmentFavorite in your code is a FragmentActivity which is not the same thing as a Fragment.That's why you're getting the type mismatch. Also, you should never call new on an Activity as that is not the proper way to start one.. If you want to start a new instance of mFragmentFavorite, you can do so via an Intent.. From a Fragment:. Intent … WebI am new to android. I am trying to move from adapter to activity using Intent and the adapter has been called from a fragment. I am getting the following exception: (adsbygoogle = window.adsbygoogle []).push({}); This is my Adapter Class This is the code where I am calling the adapter from

WebThen just have your MainActivity pass in a listener to the Adapter: ... Then you should add a setCallback method and call it from activity/fragment. Also you shouldn't make a callback static (it may lead to problems when you use the same adapter in many classes). You should create a field inside the ViewHolder. WebJun 17, 2024 · If ListFragment were to instead use itself as the scope, it would be provided a different ViewModel than MainActivity. Share data between fragments. ... Create a scenario for the fragment under test by using launchFragmentInContainer or launchFragment, and then manually call the method that is not being tested.

WebSep 29, 2012 · Best way to call the activity method from their respective fragment (activity as YourActivity).activtiyMethod() use this line from your activity. For example. Suppose You have Activity A and method add() and your fragment ABC and you want to call the …

WebWhen I click the on one of the button the data of the current fragment should be updated. Therefore, I implemented some callback methods in the activity. But unfortunatly, everytime I call the method reloadArticleListFragment(), e.g. when I click on one of the buttons in the button bar, I get a NullPointerException. link table from excel to powerpointWebAndroid 空指针异常滑动菜单片段视图,android,android-fragments,material-design,navigation-drawer,android-toolbar,Android,Android Fragments,Material Design,Navigation Drawer,Android Toolbar,我正在尝试更新我的主要活动，以支持Androidhive上的工具栏和本示例中的更多材料导航抽屉在尝试转换之前，这一切都起了 … hours for mavis tiresWebNov 12, 2012 · Ultimately no matter where you call finish, it will detach the Fragment and destroy it. Just to clarify how to call a method from your Activity in your Fragment ( (YourActivity)getActivity ()).someMethod (param); You MUST caste it because Java doesn't know that Activity has whatever method you wanna call. link table in sqlWeb我創建了一個ViewPager，其中包含個帶有不同內容的片段。每個片段的底部都有一個按鈕欄。當我單擊按鈕之一時，應更新當前片段的數據。因此，我在活動中實現了一些回調方法。但是不幸的是，每次我調用reloadArticleListFragment 方法時，例如，當我單擊按鈕欄中的 … link table excel to powerpointWeb15 hours ago · If it is an issue with the adapter please enlighten me as to what should be there. ListView Fragment public class ListviewFragment extends Fragment implements AdapterView.OnItemClickListener, View.OnClickListener { private LinkedList linkedList; private ListView listView; @Override public View onCreateView ( LayoutInflater inflater, … hours for material participationWeb@RAM if you need to call the same method in more than one activity, you need to create an interface with that method name. Then implement that interface in what all activities you need the method call to be availed. Then in the click listener, check instance of your interface rather than using activity name. – Eldhose M Babu Jul 8, 2015 at 13:14 1 link table cells in wordWebApr 7, 2016 · Then i make a public method on my fragment to get the data value from my activity. As simple as that – HendraWD. Apr 7, 2016 at 15:30. 1. if you want to call mainActivity method whenever you like from fragment create listener in fragment and add callbacks in main activity – bryan c. Apr 7, 2016 at 15:43. 1 @HendraWijayaDjiono, … link table in another excel sheet