How do I find a non child View in Android?
I have a TextView inside the same RelativeLa开发者_StackOverflowyout as a chunk of ImageView derived custom classes. I'd like to be able to write to the TextView from inside these other Views. How do I do this since I am unable to use findViewById due to it not being a child?
I'd like to be able to write to the TextView from inside these other Views.
That is not a good design. Views
should not interact with other random Views
. Communication between those should be handled by the Activity
, or possibly by making the RelativeLayout
be a custom View
and having it mediate the communication.
You can use findViewById
of current Activity
to find those other Views.
public class CustomView extends View {
private Activity activity;
public CustomView(Context context, AttributeSet attrs) {
super(context, attrs);
activity = (Activity) context;
}
private View findOtherView(int id) {
return activity.findViewById(id);
}
}
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