Android Open Source - youku_api_android_framework Moive Channel Fragment

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License

The source code is released under:

Apache License

Java Source Code

package com.android.intro.moiveslist;
/*www.  ja  v  a  2 s. c om*/
import java.util.ArrayList;
import java.util.HashMap;

import com.android.intro.moiveslist.models.HttpCallBackHandler;
import com.android.intro.moiveslist.models.MoiveModel;
import com.android.intro.moiveslist.MoiveDetailAvctivity;
import com.android.intro.movieslist.adpater.MovieAdapter;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.LinearLayout.LayoutParams;
import android.widget.ListAdapter;
import android.widget.TextView;

public class MoiveChannelFragment extends Fragment {

  private static final String KEY_CONTENT = "MoiveChannelFragment:Content";
  private Integer channelId;
  private Context mContext;
  GridView moiveGridView;
  private Integer pg = 1;
  private Integer pz = 30;
  private Integer max_pg = 30;
  private boolean loading = true;
  private int previousTotal = 0;
  private int visibleThreshold = 10;
  protected ProgressBar mProgressBar;
  private View convertView;
  MoiveModel moives;
  String cid;

  public static MoiveChannelFragment newInstance(Context context,
      Integer channel_id) {

    MoiveChannelFragment fragment = new MoiveChannelFragment();
    fragment.channelId = channel_id;
    fragment.mContext = context;

    return fragment;

  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if ((savedInstanceState != null)
        && savedInstanceState.containsKey(KEY_CONTENT)) {
      channelId = savedInstanceState.getInt(KEY_CONTENT);
    }
    
    pg = 1;
  }

  @Override
  public void onResume() {
    
    super.onResume();
    if (moiveGridView != null) {
      MovieAdapter adapter=(MovieAdapter) moiveGridView.getAdapter();
      if(adapter != null){
        pg = 1;
        //moiveGridView.setAdapter(adapter);
        //adapter.notifyDataSetChanged();
      }
    }
  }
  

  public void onHttpResponseCallback(ArrayList<String> urls) {
    MovieAdapter adapter = new MovieAdapter(this.mContext, urls);
    moiveGridView.setAdapter(adapter);
  }
  
  
  public void onUpdateHttpResponseCallback(ArrayList<String> urls) {
    MovieAdapter adapter =(MovieAdapter) moiveGridView.getAdapter();
    if(adapter!=null){
      adapter.appendToDataSet(urls);
          adapter.notifyDataSetChanged();
        }
  }
  

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    
    if(savedInstanceState!=null)
        {
      if(convertView!=null){
        return convertView;
      }
        }
    
    convertView = LayoutInflater.from(mContext).inflate(
        R.layout.activity_main, container, false);

    moiveGridView = (GridView) convertView
        .findViewById(R.id.moivesGridView);
    
    mProgressBar = (ProgressBar)convertView.findViewById(R.id.ajax_loading);

    moiveGridView.setOnItemClickListener(new OnItemClickListener() {
      public void onItemClick(AdapterView<?> parent, View v,
          int position, long id) {
        Intent intent = new Intent(v.getContext(),
            MoiveDetailAvctivity.class);
        intent.putExtra("cid", channelId.toString());
        intent.putExtra("position", position);
        startActivity(intent);
        if(position%2==0){
          ((Activity) mContext).overridePendingTransition(R.anim.anim_slide_in_left,R.anim.anim_slide_out_right);
        }else{
          ((Activity) mContext).overridePendingTransition(R.anim.anim_slide_in_right, R.anim.anim_slide_out_left);
        }
      }
    });
    
    moives = new MoiveModel(this.mContext);
    cid = channelId.toString();
    moiveGridView.setOnScrollListener(new OnScrollListener(){

      @Override
      public void onScrollStateChanged(AbsListView view, int scrollState) {    
      }

      @Override
      public void onScroll(AbsListView view, int firstVisibleItem,
          int visibleItemCount, int totalItemCount) {
        
        Integer auto_loading_count = 4;
        if(firstVisibleItem >= (totalItemCount - auto_loading_count) && pg < max_pg){
          //auto loading
          
          if (loading) {
                  if (totalItemCount > previousTotal) {
                    loading = false;
                      previousTotal = totalItemCount;
                  }
          }
          if (!loading && (totalItemCount - visibleItemCount) <= (firstVisibleItem + visibleThreshold)) {

            pg++;
            moives.get_channel_list(cid, pg, pz, new HttpCallBackHandler() {
              @SuppressWarnings("unchecked")
              @Override
              public void onSuccess(HashMap<String, Object> result) {
                onUpdateHttpResponseCallback((ArrayList<String>) result
                    .get("results"));
                
                loading = false;
              }
            });
            loading = true;
          }
        }
      }
      
    });


    mProgressBar.setVisibility(View.VISIBLE); 
    moives.get_channel_list(cid, pg, pz, new HttpCallBackHandler() {
      @SuppressWarnings("unchecked")
      @Override
      public void onSuccess(HashMap<String, Object> result) {
        onHttpResponseCallback((ArrayList<String>) result
            .get("results"));
        mProgressBar.setVisibility(View.INVISIBLE);
      }
    });

    return convertView;
  }

  @Override
  public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putInt(KEY_CONTENT, channelId);
  }
}

Java Source Code List

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