Android refresh current activity

I want to program my android app to refresh its current activity on ButtonClick. I have one button on the top of the activity layout which will do the job. When I click on button the current activity should reload again - just like a device restart.

Thanks

public void onClick (View v){
    Intent intent = getIntent();
    finish();
    startActivity(intent);
}

You may try this

finish();
startActivity(getIntent());

This question was asked before: https://stackoverflow.com/questions/1397361/how-do-i-restart-an-android-activity

In an activity you can call recreate() to "recreate" the activity (API 11+)

This is a refresh button method, but it works well in my application. in finish() you kill the instances

public void refresh(View view){          //refresh is onClick name given to the button
    onRestart();
}

@Override
protected void onRestart() {

    // TODO Auto-generated method stub
    super.onRestart();
    Intent i = new Intent(lala.this, lala.class);  //your class
    startActivity(i);
    finish();

}

this is what worked for me as seen here.

Just use it or add it to a static class helper and just call it from anywher in your project.

/**
Current Activity instance will go through its lifecycle to onDestroy() and a new instance then created after it.
*/
@SuppressLint("NewApi")
  public static final void recreateActivityCompat(final Activity a) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
      a.recreate();
    } else {
      final Intent intent = a.getIntent();
      intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
      a.finish();
      a.overridePendingTransition(0, 0);
      a.startActivity(intent);
      a.overridePendingTransition(0, 0);
   }
}

> It should start again and delete all the instances of previous current activity.

No, it shouldn't.

It should update its data in place (e.g., requery() the Cursor). Then there will be no "instances of previous current activity" to worry about.

You can Try this:

        CookieSyncManager.createInstance(this);         
        CookieManager cookieManager = CookieManager.getInstance();        
        cookieManager.removeAllCookie();		
		Intent intent= new Intent(YourCurrent.this, YourCurrent.class);
		intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
		startActivity(intent);

You can use:

startActivity(MyClass.this, MyClass.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

You can use this to refresh an Activity from within itself.

finish();
startActivity(getIntent());

The easiest way is to call onCreate(null); and your activity will be like new.

Try this

Simple way

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

I think that the best choice for you is using SwipeRefreshLayout View in your layout. Then set RefreshListener like.

mySwipeRefreshLayout.setOnRefreshListener(
            new SwipeRefreshLayout.OnRefreshListener() {
                @Override
                public void onRefresh() {
                    Log.i("Fav ", "onRefresh called from SwipeRefreshLayout");

                    // This method performs the actual data-refresh operation.
                    // The method calls setRefreshing(false) when it's finished.
                    request();  // call what you want to update in this method
                    mySwipeRefreshLayout.setRefreshing(false);
                }
            }
    );

For more details click this link

You can call this method:

recreate();

From dialog to activity that you want to refresh. If it not first activity!
Like this:mainActivity>>objectActivity>>dialog
In your dialog class:

  @Override
public void dismiss() {
    super.dismiss();
   getActivity().finish();
    Intent i = new Intent(getActivity(), objectActivity.class);  //your class
    startActivity(i);
    
}