com.sunrun.sunrunframwork.adapter.ImagePagerAdapter.java Source code

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Here is the source code for com.sunrun.sunrunframwork.adapter.ImagePagerAdapter.java

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/*
 * Copyright 2014 trinea.cn All right reserved. This software is the confidential and proprietary information of
 * trinea.cn ("Confidential Information"). You shall not disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into with trinea.cn.
 */
package com.sunrun.sunrunframwork.adapter;

import java.util.List;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import com.sunrun.sunrunframwork.R;
import com.sunrun.sunrunframwork.uiutils.UIUtils;

/**
 * @Description: ?
 * @param <T>
 */
public abstract class ImagePagerAdapter<T> extends PagerAdapter implements OnClickListener {

    protected Context mContext;
    private List<T> imageIdList;
    private int size;
    private boolean isInfiniteLoop;
    OnBannerClickListener onBannerClickListener;

    public ImagePagerAdapter(Context context, List<T> imageIdList) {
        this.mContext = context;
        this.imageIdList = imageIdList;
        if (imageIdList != null) {
            this.size = imageIdList.size();
        }
        isInfiniteLoop = false;
    }

    public ImagePagerAdapter<T> setOnBannerClickListener(OnBannerClickListener onBannerClickListener) {
        this.onBannerClickListener = onBannerClickListener;
        return this;
    }

    @Override
    public int getCount() {
        // Infinite loop
        return isInfiniteLoop ? Integer.MAX_VALUE : imageIdList.size();
    }

    /**
     * get really position
     * 
     * @param position
     * @return
     */
    public int getPosition(int position) {
        return isInfiniteLoop ? position % size : position;
    }

    public int getSize() {
        return imageIdList == null ? 0 : imageIdList.size();
    }

    public View getView(final int index, View view, ViewGroup container) {
        final ViewHolder holder;
        if (view == null) {
            holder = new ViewHolder();
            view = View.inflate(mContext, R.layout.item_viewpage_img, null);
            holder.imageView = (ImageView) view.findViewById(R.id.img);
            view.setTag(holder);
            holder.imageView.setTag(holder);
        } else {
            holder = (ViewHolder) view.getTag();
        }
        int position = getPosition(index);
        holder.position = position;
        setImage(imageIdList.get(position), holder.imageView);
        holder.imageView.setOnClickListener(this);
        view.setOnClickListener(this);
        // holder.imageView.setTag(position);
        return view;
    }

    public void setImage(T mItem, ImageView img) {
        if (mItem instanceof Integer) {
            img.setImageResource((Integer) mItem);
        } else if (String.valueOf(mItem).startsWith("http")) {// ?
            loadImage(img, String.valueOf(mItem));
        } else {
            img.setImageBitmap(UIUtils.getBitmapForasses(mContext, String.valueOf(mItem)));
        }
    }

    protected abstract void loadImage(@NonNull ImageView img, @NonNull String absPath);

    private static class ViewHolder {
        int position;
        ImageView imageView;
    }

    /**
     * @return the isInfiniteLoop
     */
    public boolean isInfiniteLoop() {
        return isInfiniteLoop;
    }

    /**
     * @param isInfiniteLoop
     *            the isInfiniteLoop to set
     */
    public ImagePagerAdapter setInfiniteLoop(boolean isInfiniteLoop) {
        this.isInfiniteLoop = isInfiniteLoop;
        return this;
    }

    public int getItemViewType(int position) {
        return 0;
    }

    @Override
    public final Object instantiateItem(ViewGroup container, int position) {
        View view = null;
        view = getView(position, view, container);
        container.addView(view);
        return view;
    }

    @Override
    public final void destroyItem(ViewGroup container, int position, Object object) {
        View view = (View) object;
        container.removeView(view);
    }

    @Override
    public final boolean isViewFromObject(View view, Object object) {
        return view == object;
    }

    @Override
    public void onClick(View v) {
        ViewHolder holder = (ViewHolder) v.getTag();
        if (holder != null && onBannerClickListener != null) {
            onBannerClickListener.onBannerClick(holder.position, imageIdList.get(holder.position));
        }
    }

    public interface OnBannerClickListener {
        public void onBannerClick(int position, Object t);
    }
}