How to call a method unless it was opened as an activity?

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How to call a method unless it was opened as an activity?



Is it possible to trigger a method when an Activity is opened by an intent.
I found onNewIntent() on articles but I have no idea how that works.


onNewIntent()



For example if I had the method loadData(). In the loadData method I will receive an Intent and get an array extra.


loadData()


loadData


public void loadData()
Bundle bundle = getIntent().getExtras();
contactsList = (ArrayList<Contact>)bundle.getSerializable("array");



But i only want loadData() to be called unless it is opened by an intent or it will throw a bug.



This article How to call a method using intent was similar to what I wanted because it seems like the getIntent is called in the oncreate. I don't know if that will work or not.


getIntent


oncreate



Any help would be appreciated, thanks.




2 Answers
2



Check intent have values or null .if its have the value call your method


if(getIntent().getExtras() != null)

loadData()



You can send a parameter to the Activity and check if that parameter exists to trigger the method. Does this fit what you want?


Intent intent = new Intent(this, OtherActivity.class);
intent.putExtra("loadData", true);



In the new activity, check that value:


Boolean loadData = getIntent().getExtras().getBoolean("loadData");
if(loadData) ...






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