OVERTONE OVERTONE - 1 year ago 270
Android Question

Getting activity from context in android

This one has me stumped.

I need to call an activity method from within a custom layout class. The problem with this is that I don't know how to access the activity from within the layout.


public class ProfileView extends LinearLayout
TextView profileTitleTextView;
ImageView profileScreenImageButton;
boolean isEmpty;
ProfileData data;
String name;

public ProfileView(Context context, AttributeSet attrs, String name, final ProfileData profileData)
super(context, attrs);

//Heres where things get complicated
public void onClick(View v)
//Need to get the parent activity and call its method.
ProfileActivity x = (ProfileActivity) context;


public class ProfileActivityActivity extends Activity
//In here I am creating multiple ProfileViews and adding them to the activity dynamically.

public void onCreate(Bundle savedInstanceState)

public void addProfilesToThisView()
ProfileData tempPd = new tempPd(.....)
Context actvitiyContext = this.getApplicationContext();
//Profile view needs context, null, name and a profileData
ProfileView pv = new ProfileView(actvitiyContext, null, temp, tempPd);

As you can see above, I am instantiating the profileView programatically and passing in the activityContext with it. 2 questions:

  1. Am i passing the correct context into the Profileview?

  2. How do I get the containing activity from the context?

Answer Source

From your Activity, just pass in this as the Context for your layout:

ProfileView pv = new ProfileView(this, null, temp, tempPd);

Afterwards you will have a Context in the layout, but you will know it is actually your Activity and you can cast it so that you have what you need:

Activity activity = (Activity) context;
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