Question

I’m trying to do some touchUtil on a button within a relative layout that does not have an id.
Usually it would look something like:

relativelayout rl1 = (relativelayout) base.findViewById(R.id.layout1);
button btn = (button) rl1.findviewbyId(R.id.buttonX);
touchUtil(btn);

But the one I’m working on is within a ScrollView, RelativeLayout, LinearLayout, (which do not have ids) and then the button.

How can I push that button with touchutils?

Answer 1

You can always use ViewGroup#getChildAt() to retrieve a View based on an index.

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Addition
If you have a layout like this:

<ScrollView>
    <RelativeLayout>
        <LinearLayout>
            <Button/>
            <Button/>
        </LinearLayout>
        <TextView/>
    </RelativeLayout>
</ScrollView>

Then you can traverse the ViewTree like so:

FrameLayout content = (FrameLayout) findViewById(android.R.id.content);
ScrollView scrollView = (ScrollView) content.getChildAt(0);
RelativeLayout relativeLayout = (RelativeLayout) scrollView.getChildAt(0);
LinearLayout linearLayout = (LinearLayout) relativeLayout.getChildAt(0);

Button button1 = (Button) linearLayout.getChildAt(0);
Button button2 = (Button) linearLayout.getChildAt(1);

TextView textView = (TextView) relativeLayout.getChildAt(1);

The best scenario is to simply ask the layout designers to add ids to the elements that you want.