View that can handle adapters but is not scrollable

Question

Does a View that can handle adapters (e.g. ArrayAdapter) but is not scrollable exist?

I would not like to go into workarounds (e.g. disabling a ListView's scrolling feature).

score 1 · Accepted Answer · answered Feb 10 '14 at 06:31

Sure you can. Calling getView on an adapter returns a View that corresponds to the information provided from the adapter's getItem method. So you can do something like this:

LinearLayout layout = (LinearLayout) view.findViewById(R.id.linear_layout);
BaseAdapter adapter = new CustomAdapter(context, itemList);

for (int i = 0; i < itemList.size(); i++) {
    // you can pass in a recycled view instead of null
    View itemView = adapter.getView(i, null, layout);
    layout.addView(itemView);
}

ViewGroups such as LinearLayout aren't scrollable by themselves so this should work. I'm not sure why you would want to use an Adapter in this situation but that's up to you.

This is really nice. So basically adapters are "arrays" that contain views. To answer you why I need this: I would like to implement [quickreturn/scrolltricks](https://plus.google.com/u/0/+RomanNurik/posts/1Sb549FvpJt) but I also call async functions (data from a db). I have found a ready library [QuickReturn for listviews](https://github.com/LarsWerkman/QuickReturnListView) but my code has become very dirty and sensitive. So I wanted to make it more lightweight. Thank you very much. — Diolor, Feb 10 '14 at 06:51

score 0 · Answer 2 · edited May 23 '17 at 12:13

0

You can use the following or refer to the mentioned links

listView.setScrollContainer(false);

References : Disable scrolling of a ListView contained within a ScrollView

Disable scrolling in listview

edited May 23 '17 at 12:13

Community

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answered Feb 10 '14 at 06:14

Rachita Nanda

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score 0 · Answer 3 · answered Feb 10 '14 at 06:15

// try this wau
1. Create your custom Listview like below and use it rather default ListView

public class MyCustomListView extends ListView {

    @SuppressWarnings("unused")
    private static final int SWIPE_MIN_DISTANCE = 50;
    @SuppressWarnings("unused")
    private static final int SWIPE_THRESHOLD_VELOCITY = 100;
    @SuppressWarnings("unused")
    private GestureDetector gDetector;
    @SuppressWarnings("unused")
    private boolean isFling;

    private float mDiffX;
    private float mDiffY;
    private float mLastX;
    private float mLastY;

    /**
     * Overrides method
     */
    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        switch (ev.getAction()) {
        case MotionEvent.ACTION_DOWN:
            // reset difference values
            mDiffX = 0;
            mDiffY = 0;

            mLastX = ev.getX();
            mLastY = ev.getY();
            break;

        case MotionEvent.ACTION_MOVE:
            final float curX = ev.getX();
            final float curY = ev.getY();
            mDiffX += Math.abs(curX - mLastX);
            mDiffY += Math.abs(curY - mLastY);
            mLastX = curX;
            mLastY = curY;

            // don't intercept event, when user tries to scroll vertically
            if (mDiffX > mDiffY) {
                return false; // do not react to horizontal touch events, these
                                // events will be passed to your list item view
            }
        }

        return super.onInterceptTouchEvent(ev);
    }

    public MyCustomListView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(context);
    }

    public MyCustomListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }

    public MyCustomListView(Context context) {
        super(context);
        init(context);
    }

    private void init(Context mContext) {
    }
}

View that can handle adapters but is not scrollable

3 Answers3