Android example source code file (AdjacentListsWithAdjacentISVsInside.java)

This example Android source code file (AdjacentListsWithAdjacentISVsInside.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

activity, adjacentisvadapter, adjacentlistswithadjacentisvsinside, android, app, baseadapter, illegalargumentexception, internalselectionview, linearlayout, listview, object, os, override, ui, util, view, viewgroup, widget

The AdjacentListsWithAdjacentISVsInside.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.widget.listview;

import android.util.InternalSelectionView;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;

/**
 * Most bodacious scenario yet!
 */
public class AdjacentListsWithAdjacentISVsInside extends Activity {

    private ListView mLeftListView;
    private ListView mRightListView;

    public ListView getLeftListView() {
        return mLeftListView;
    }

    public ListView getRightListView() {
        return mRightListView;
    }

    public InternalSelectionView getLeftIsv() {
        return (InternalSelectionView)
                ((ViewGroup) mLeftListView.getChildAt(0)).getChildAt(0);
    }

    public InternalSelectionView getLeftMiddleIsv() {
        return (InternalSelectionView)
                ((ViewGroup) mLeftListView.getChildAt(0)).getChildAt(1);
    }

    public InternalSelectionView getRightMiddleIsv() {
        return (InternalSelectionView)
                ((ViewGroup) mRightListView.getChildAt(0)).getChildAt(0);
    }

    public InternalSelectionView getRightIsv() {
        return (InternalSelectionView)
                ((ViewGroup) mRightListView.getChildAt(0)).getChildAt(1);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        final int desiredHeight = (int) (0.8 * getWindowManager().getDefaultDisplay().getHeight());

        mLeftListView = new ListView(this);
        mLeftListView.setAdapter(new AdjacentISVAdapter(desiredHeight));
        mLeftListView.setItemsCanFocus(true);


        mRightListView = new ListView(this);
        mRightListView.setAdapter(new AdjacentISVAdapter(desiredHeight));
        mRightListView.setItemsCanFocus(true);



        setContentView(combineAdjacent(mLeftListView, mRightListView));
    }

    private static View combineAdjacent(View... views) {
        if (views.length < 2) {
            throw new IllegalArgumentException("you should pass at least 2 views in");
        }

        final LinearLayout ll = new LinearLayout(views[0].getContext());
        ll.setOrientation(LinearLayout.HORIZONTAL);
        final LinearLayout.LayoutParams lp =
                new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, 1.0f);

        for (View view : views) {
            ll.addView(view, lp);
        }
        return ll;
    }

    static class AdjacentISVAdapter extends BaseAdapter {

        private final int mItemHeight;

        AdjacentISVAdapter(int itemHeight) {
            mItemHeight = itemHeight;
        }

        public int getCount() {
            return 1;
        }

        public Object getItem(int position) {
            return position;
        }

        public long getItemId(int position) {
            return position;
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            final InternalSelectionView isvLeft = new InternalSelectionView(
                    parent.getContext(), 5, "isv left");
            isvLeft.setDesiredHeight(mItemHeight);
            final InternalSelectionView isvRight = new InternalSelectionView(
                    parent.getContext(), 5, "isv right");
            isvRight.setDesiredHeight(mItemHeight);
            return combineAdjacent(isvLeft, isvRight);
        }
    }
}