CODEWITHSUNDEEP
androidandroid-fragmentsandroid-intent
GusDev
GusDev

Reputation: 297

how to redirect from dialog to fragment

i have a alert dialog where if the user have no alarms send the user to the alarms section, the dialog and alarm section are in the same activity but diferent fragments

my dialog is from "LifeFragment.java" and the "alarmsfragment on "alarmsfragment.java"

how can i send the user to the other fragment?

Update

With this i tell the activity where to begin:

    tabs.setViewPager(pager);
    pager.setCurrentItem(2);

I have to do something like this?:

Intent myIntent = new Intent(v.getContext(),
                        HomeScreenActivity.class);
                myIntent.putExtra("1", ViewPager);

Upvotes: 1

Views: 868

Answers (2)

ceph3us
ceph3us

Reputation: 7474

1. fire activity from dialog (if its not allready fired else add flag):

  • define new intent
Intent intent = new Intent(context, Activity.class);

  • define key for extra in activity

  • put extra which fragment u wanna show

intent.putExtra(Activity.STRING_KEY, Activity.VALUE);
  • fire intent 
context.startActivity(intent);

2. when activity loads:

  • in Activity define:
public static String STRING_KEY = "myKey";
public static String VALUE1 = "fragment1";
public static String VALUE2 = "fragment2";
private String _extra;
private int _fragmentNumber;
  • in onCreate(savedInstanceState) get intent extra 
if(savedInstanceState != null) {
     _extra = getIntent().getStringExtra(STRING_KEY); // or IntegerExtra(key)
  }
  • set viewpager [ findview, setadapter(on viewpager), set for example tablayout with viewpager etc]
ViewPager pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(Adapter);

3. change fragment via viewpager in hosted activity:

( for example use if or switch statement on received "extra")

// if example:
if(_extra != null && _extra == VALUE) {
   // change here fragment
   pager.setCurrentItem(numberOfFragmentToShow)
}

// switch example:
switch(_extra){
case VALUE1:
  _fragmentNumber = 1;
 break;
case VALUE2
  _fragmentNumber = 2
  break;
default: 
 _fragmentNumber = 3;
}

pager.setCurrentItem(_fragmentNumber);

instead of String extra value you can use Integer value and use it directly on pager

here u got detailed example :

Selecting a specified page in ViewPager when starting

Upvotes: 3

Stefano Siano
Stefano Siano

Reputation: 749

You have to redirect to your activity, sending some data, for example in a Bundle, and based on this data you decide which fragment your activity should show (and if the activity should call some method of the fragment.

The intents are used to start only activities or services, not fragments.

Upvotes: 1

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