com.lm.im_huanxin.emoji.EmojiPageFragment.java Source code

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Here is the source code for com.lm.im_huanxin.emoji.EmojiPageFragment.java

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/*
 * Copyright (c) 2015, .
 *
 * 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.lm.im_huanxin.emoji;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.FrameLayout;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.RadioGroup;

import com.lm.im_huanxin.R;
import com.lm.im_huanxin.adapter.EmojiAdapter;
import com.lm.im_huanxin.entity.Emojicon;
import com.lm.im_huanxin.ui.fragment.OnOperationListener;

import java.util.List;

/**
 * Emoji
 *
 * @author kymjs (http://www.kymjs.com/) on 6/8/15.
 */
public class EmojiPageFragment extends Fragment {

    private static final int ITEM_PAGE_COUNT = 28;

    private ViewPager mPagerFace;
    private LinearLayout pagePointLayout;

    private Activity aty;
    private GridView[] allPageViews;
    private RadioButton[] pointViews;
    private OnOperationListener listener;

    private List<Emojicon> datas;

    @Override
    public View onCreateView(LayoutInflater layoutInflater, ViewGroup viewGroup, Bundle bundle) {
        aty = getActivity();
        View rootView = layoutInflater.inflate(R.layout.chat_frag_face, null);
        initData();
        initWidget(rootView);
        return rootView;
    }

    protected void initData() {
        datas = DisplayRules.getAllByType();
    }

    protected void initWidget(View rootView) {
        mPagerFace = (ViewPager) rootView.findViewById(R.id.frag_pager_face);
        pagePointLayout = (LinearLayout) rootView.findViewById(R.id.frag_point);

        int total = datas.size();
        int pages = total / ITEM_PAGE_COUNT + (total % ITEM_PAGE_COUNT == 0 ? 0 : 1);

        allPageViews = new GridView[pages];
        pointViews = new RadioButton[pages];

        for (int x = 0; x < pages; x++) {
            int start = x * ITEM_PAGE_COUNT;
            int end = (start + ITEM_PAGE_COUNT) > total ? total : (start + ITEM_PAGE_COUNT);
            final List<Emojicon> itemDatas = datas.subList(start, end);
            GridView view = new GridView(aty);
            EmojiAdapter faceAdapter = new EmojiAdapter(view, itemDatas);

            view.setNumColumns(7);
            view.setHorizontalSpacing(1);
            view.setVerticalSpacing(1);
            view.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);
            view.setCacheColorHint(0);
            view.setPadding(2, 0, 2, 0);
            view.setBackgroundResource(android.R.color.transparent);
            view.setSelector(android.R.color.transparent);
            view.setVerticalScrollBarEnabled(false);
            view.setGravity(Gravity.CENTER);
            view.setLayoutParams(new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
                    FrameLayout.LayoutParams.WRAP_CONTENT));
            view.setAdapter(faceAdapter);

            view.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    if (listener != null) {
                        Emojicon emoji = itemDatas.get(position);
                        if (DisplayRules.isDeleteEmojicon(emoji)) {
                            listener.selectedBackSpace(emoji);
                        } else {
                            listener.selectedEmoji(emoji);
                        }
                    }
                }
            });
            allPageViews[x] = view;

            RadioButton tip = new RadioButton(aty);
            tip.setBackgroundResource(R.drawable.selector_bg_tip);
            RadioGroup.LayoutParams layoutParams = new RadioGroup.LayoutParams(8, 8);
            layoutParams.leftMargin = 10;
            pagePointLayout.addView(tip, layoutParams);
            if (x == 0) {
                tip.setChecked(true);
            }
            pointViews[x] = tip;
        }

        PagerAdapter facePagerAdapter = new FacePagerAdapter(allPageViews);
        mPagerFace.setAdapter(facePagerAdapter);
        mPagerFace.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

            @Override
            public void onPageSelected(int index) {
                pointViews[index].setChecked(true);
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {
            }

            @Override
            public void onPageScrollStateChanged(int arg0) {
            }
        });
    }

    public class FacePagerAdapter extends PagerAdapter {
        private final GridView[] gridViewList;

        public FacePagerAdapter(GridView[] gridViewList) {
            this.gridViewList = gridViewList;
        }

        @Override
        public int getCount() {
            return gridViewList.length;
        }

        @Override
        public boolean isViewFromObject(View arg0, Object arg1) {
            return arg0 == arg1;
        }

        @Override
        public int getItemPosition(Object object) {
            return super.getItemPosition(object);
        }

        @Override
        public void destroyItem(View arg0, int arg1, Object arg2) {
            ((ViewPager) arg0).removeView(gridViewList[arg1]);
        }

        @Override
        public Object instantiateItem(View arg0, int arg1) {
            ((ViewPager) arg0).addView(gridViewList[arg1]);
            return gridViewList[arg1];
        }
    }

    public void setOnOperationListener(OnOperationListener onOperationListener) {
        this.listener = onOperationListener;
    }
}