samples/browseable/CardView/src/com.example.android.cardview/CardViewFragment.java

/*
* Copyright 2014 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 com.example.android.cardview;

import android.app.Fragment;
import android.os.Bundle;
import android.support.v7.widget.CardView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.SeekBar;

/**
 * Fragment that demonstrates how to use CardView.
 */
public class CardViewFragment extends Fragment {

    private static final String TAG = CardViewFragment.class.getSimpleName();

    /** The CardView widget. */
    //@VisibleForTesting
    CardView mCardView;

    /**
     * SeekBar that changes the cornerRadius attribute for the {@link #mCardView} widget.
     */
    //@VisibleForTesting
    SeekBar mRadiusSeekBar;

    /**
     * SeekBar that changes the Elevation attribute for the {@link #mCardView} widget.
     */
    //@VisibleForTesting
    SeekBar mElevationSeekBar;

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @return A new instance of fragment NotificationFragment.
     */
    public static CardViewFragment newInstance() {
        CardViewFragment fragment = new CardViewFragment();
        fragment.setRetainInstance(true);
        return fragment;
    }

    public CardViewFragment() {
        // Required empty public constructor
    }

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

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_card_view, container, false);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mCardView = (CardView) view.findViewById(R.id.cardview);
        mRadiusSeekBar = (SeekBar) view.findViewById(R.id.cardview_radius_seekbar);
        mRadiusSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                Log.d(TAG, String.format("SeekBar Radius progress : %d", progress));
                mCardView.setRadius(progress);
            }
            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                //Do nothing
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                //Do nothing
            }
        });

        mElevationSeekBar = (SeekBar) view.findViewById(R.id.cardview_elevation_seekbar);
        mElevationSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                Log.d(TAG, String.format("SeekBar Elevation progress : %d", progress));
                mCardView.setElevation(progress);
            }
            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                //Do nothing
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                //Do nothing
            }
        });
    }
}