Refreshing listview in tab activity from main activity

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I have a main activity with an options menu which contains a check-able item. I also have three tabs with an activity, containing a listview each.

What I'm trying to do is refresh the selected tab's listview when I change the check-able item menu option in main activity.

Any idea about how can I achieve this?

Usually when you have tabs, you're using a view pager so each fragment should be able to specify it's own option menu thus keeping the scope to the currently selected list.

android - Refreshing listview in tab activity from main activity, Usually when you have tabs, you're using a view pager so each fragment should be able to specify it's own option menu thus keeping the  Main Activity Then in your main Android activity file just make an object of SwipeRefreshLayout, ArrayAdapter and ListView corresponding to their id’s and for ArrayAdapter use the constructor ArrayAdapter(Context context, int resource, T[] objects) .

call notifyDataSetChanged() on your adapter in onResume() on the Fragment which has listview.

Android Swipe Down to Refresh a ListView, Android Swipe Down to Refresh a ListView. activity_main. xml. activity_listview. xml. Main Activity. Then in your main Android activity file just make an object of SwipeRefreshLayout, ArrayAdapter and ListView corresponding to their id's and for ArrayAdapter use the constructor ArrayAdapter(Context context, int I have troubles with refreshing my listview adapter after I close another activity. I am making program for delivery notes and my main screen is a list with notes. My problem is that when I add a new

You can do a workaround to do that. Using a Global Class. You can store the selected checked item value in a global class. And access that value from anywhere in your code. How to create a global class

Then use a TimerTask in fragments to check whether the selected item is changed and reload the data.

Here is how to implement a TimerTask Keep the previousItem and currentItem as string values to check for modifications.

TimerTask timerTask;
Timer timer;
timerTask = new TimerTask() {
        @Override
        public void run() {
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    //check if the checkable item is modified
                    currentItem = globalClass.getCheckedItem();
                    if(!previousItem.equalsIgnoreCase(currentItem)){
                        previousItem = currentItem;
                        //load your data
                    }
                }
            });
        }
    };
    timer = new Timer();
    timer.scheduleAtFixedRate(timerTask, 0, 200);

globalClass.getCheckedItem(); is the method used to get the selected item from the globalClass. You can set the value when you select an item from the Option Menu And make sure to cancel the timer onPause()

@Override
protected void onPause() {
    if(timer != null){
        timer.cancel();
    }
    super.onPause();
}

Hope this works for you.

Creating and Using Fragments · codepath/android_guides Wiki , Tablet Support - Often within apps, the tablet version of an activity has a substantially A fragment, like an activity, has an XML layout file and a Java class that AppCompatActivity; public class MainActivity extends AppCompatActivity { // . loads the fragment instances lazily similar to the a ListView recycling items as they  If you run your project now you will see tabs running without listviews. So all we need to do is implement listview in each tab activity. So open you individual tab activity classes and try to implement listview. If you are new to ListView i suggest you to go through Android ListView Tutorial once.

Implementing Pull to Refresh Guide · codepath/android_guides Wiki , The activity that instantiates SwipeRefreshLayout should add an swipeContainer); // Setup refresh listener which triggers new data loading swipeContainer. Note: ListView is an old UI component that is no longer used in public class MainActivity extends AppCompatActivity { SwipeRefreshLayout​  Example 2: Pull To Refresh with ListView In Android Studio: Below is the second example of SwipeRefreshLayout with ListView in which we display list of Items and shuffle them on top to down swipe. Firstly we declare a SwipeRefreshLayout and a ListView in our XML file then get the reference of both in our Activity.

SwipeRefreshLayout in Android Fragment, The main use of SwipeRefreshLayout is to refresh the page or screen. Real Time Create this to add the fragment when the activity loads. Swipe to refresh Android Activity (SwipeRefreshLayout) In this tutorial, we will create swipe-to-refresh functionality in the Android. For this purpose, SwipeRefreshLayout widget should be used. The instance of SwipeRefreshLayout adds an OnRefreshListener method and implements the code logic that will load on refresh. The vertical swipe displays a distinctive progress bar when the user swipes.

Smashing Mobile Web Development, You also want to add a Refresh button to the feed to enable the user to refresh the Do that by adding a couple of lines of code to the activity tab in index . html. a new jQuery Mobile List View, where you will place the elements for your feed. Android SwipeRefreshLayout. Android SwipeRefreshLayout is a ViewGroup that can hold only one scrollable child. It can be either a ScrollView, ListView or RecyclerView. The basic need for a SwipeRefreshLayout is to allow the users to refresh the screen manually. This is pretty common in the Facebook Newsfeed screen.

Comments
  • Do you have 2 activities and one has the checkable list and the other has the tabs?
  • I have one main activity with a Tab host -> Tab widget and then three tabs, each one with one activity and one listview.
  • The problem is that when I touch the menuitem, which is placed in main activity, selected tab activity (the one who is showed to the user) doesn't trigger onresume, so the activity don't know about the change. That's the problem in fact.
  • Every tab has a Fragment right.. and the listview is in that fragment.. so call notifyDataSetChanged() in that onResume() of Fragment, not the activity..
  • But Tab's onresume don't trigger when I touch the item which is placed in main activity. Maybe you can tell me a way to do it.
  • Sure.. Can you paste your code.. So that I can see and let you know how to do it..
  • Thanks for the answer!. I'll give it a try.