com.arcgis.android.samples.geometrysample.SampleListFragment.java Source code

Introduction

Here is the source code for com.arcgis.android.samples.geometrysample.SampleListFragment.java

Source

/* Copyright 2015 Esri
 *
 * 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 com.arcgis.android.samples.geometrysample;

import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class SampleListFragment extends ListFragment {
    OnSampleNameSelectedListener mCallback;

    // The container Activity must implement this interface so the frag can
    // deliver messages
    public interface OnSampleNameSelectedListener {
        /** Called by SampleListFragment when a list item is selected */
        public void onArticleSelected(int position);
    }

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

        // We need to use a different list item layout for devices older than
        // Honeycomb
        int layout = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB
                ? android.R.layout.simple_list_item_activated_1
                : android.R.layout.simple_list_item_1;

        // Create an array adapter for the list view, using the SampleNames
        // array
        setListAdapter(new ArrayAdapter<String>(getActivity(), layout,
                getResources().getStringArray(R.array.sample_names)));

    }

    @Override
    public void onStart() {
        super.onStart();

        // When in two-pane layout, set the listview to highlight the selected
        // list item
        // (We do this during onStart because at the point the listview is
        // available.)
        if (getFragmentManager().findFragmentById(R.id.sample_fragment) != null) {
            getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        }
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        // This makes sure that the container activity has implemented
        // the callback interface. If not, it throws an exception.
        try {
            mCallback = (OnSampleNameSelectedListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString() + " must implement OnSampleNameSelectedListener");
        }
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        // Notify the parent activity of selected item
        mCallback.onArticleSelected(position);

        // Set the item as checked to be highlighted when in two-pane layout
        getListView().setItemChecked(position, true);
    }
}