com.ccwant.photo.selector.activity.CCwantPhotoBrowserActivity.java Source code

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Here is the source code for com.ccwant.photo.selector.activity.CCwantPhotoBrowserActivity.java

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/*******************************************************************************
 * Copyright 2015 CCwant
 * 
 * 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.ccwant.photo.selector.activity;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import com.ccwant.album.R;
import com.ccwant.photo.selector.bean.CCwantPhoto;
import com.ccwant.photo.selector.load.CCwantImageLoader;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

/**
 * ?
 * @author want 2015-6-9
 *
 */
public class CCwantPhotoBrowserActivity extends Activity {

    private ArrayList<View> listViews = null;
    private ViewPager pager;
    private MyPageAdapter adapter;

    private List<String> mData = new ArrayList<String>();
    private int mPosition = 0;

    private TextView mTxtCount;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.ccwant_activity_photo);

        listViews = new ArrayList<View>();

        Button photo_bt_exit = (Button) findViewById(R.id.photo_bt_exit);
        photo_bt_exit.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                finish();
            }
        });
        Button photo_bt_del = (Button) findViewById(R.id.photo_bt_del);
        photo_bt_del.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                if (listViews.size() == 1) {

                    Intent intent = new Intent();
                    intent.putExtra("result", (Serializable) mData);
                    setResult(RESULT_OK, intent);
                    finish();
                } else {

                    mData.remove(mData.get(mPosition));
                    pager.removeAllViews();
                    listViews.remove(mPosition);
                    adapter.notifyDataSetChanged();
                    mTxtCount.setText((mPosition + 1) + "/" + mData.size());
                }
            }
        });
        Button photo_bt_enter = (Button) findViewById(R.id.photo_bt_enter);
        photo_bt_enter.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {

                Intent intent = new Intent();
                intent.putExtra("result", (Serializable) mData);
                setResult(RESULT_OK, intent);
                finish();
            }
        });

        mTxtCount = (TextView) findViewById(R.id.photo_count);

        pager = (ViewPager) findViewById(R.id.viewpager);
        pager.setOnPageChangeListener(pageChangeListener);

        steupPhotoToListView();

        adapter = new MyPageAdapter(listViews);// adapter
        pager.setAdapter(adapter);// ?
        pager.setCurrentItem(mPosition);
        mTxtCount.setText((mPosition + 1) + "/" + mData.size());

    }

    private void steupPhotoToListView() {
        Intent intent = getIntent();
        mData = (List<String>) intent.getSerializableExtra("CCwantPhotoList");
        mPosition = (int) intent.getSerializableExtra("CCwantPhotoPosition");
        mData.remove("default");
        for (int i = 0; i < mData.size(); i++) {
            initListViews(mData.get(i));
        }
    }

    private void initListViews(String path) {

        ImageView img = new ImageView(this);// textView
        img.setBackgroundColor(0xff000000);
        img.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
        listViews.add(img);// view
    }

    private OnPageChangeListener pageChangeListener = new OnPageChangeListener() {
        public void onPageSelected(int position) {// ??
            mPosition = position;
            mTxtCount.setText((mPosition + 1) + "/" + mData.size());
        }

        public void onPageScrolled(int arg0, float arg1, int arg2) {// 

        }

        public void onPageScrollStateChanged(int arg0) {// ??

        }
    };

    class MyPageAdapter extends PagerAdapter {

        private ArrayList<View> listViews;// content

        public MyPageAdapter(ArrayList<View> listViews) {// 
            // ?viewpager?
            this.listViews = listViews;
        }

        @Override
        public int getCount() {// ?
            return listViews == null ? 0 : listViews.size();
        }

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

        @Override
        public void destroyItem(View arg0, int arg1, Object arg2) {// ?view
            ((ViewPager) arg0).removeView(listViews.get(arg1 % getCount()));
        }

        @Override
        public Object instantiateItem(View arg0, int arg1) {// view
            try {
                CCwantImageLoader.getIntance(CCwantPhotoBrowserActivity.this).ImageLoader(mData.get(arg1),
                        (ImageView) listViews.get(arg1), true);
                ((ViewPager) arg0).addView(listViews.get(arg1 % getCount()), 0);

            } catch (Exception e) {
            }
            return listViews.get(arg1 % getCount());
        }

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

    }
}