package cn.fanfan.attentionuser;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.Header;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;
import cn.fanfan.common.Config;
import cn.fanfan.common.FanfanSharedPreferences;
import cn.fanfan.common.GlobalVariables;
import cn.fanfan.main.R;
import cn.fanfan.topic.imageload.ImageDownLoader;
import cn.fanfan.topic.imageload.ImageDownLoader.onImageLoaderListener;
import cn.fanfan.userinfo.UserInfoShowActivity;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AbsListView.OnScrollListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AbsListView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class AttentionUserActivity extends Activity {
private String uid;
private boolean isFirstEnter;
private int mFirstVisibleItem;
private int mVisibleItemCount;
private int totalItem;
private List<AttentionUserModel> attentionUserModels;
private int currentPage = 1;
private ImageDownLoader imageDownLoader;
private AttentionUserAdapter adapter;
private ListView listView;
private int per_page = 10;
private int all_pages = 1;
private LinearLayout footerLinearLayout;
private TextView footText;
private String url;
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.attention_listview);
ActionBar actionBar = getActionBar();
actionBar.setIcon(null);
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setDisplayUseLogoEnabled(false);
actionBar.show();
Intent intent = getIntent();
String UserOrMe = intent.getStringExtra("userorme");
uid = intent.getStringExtra("uid");
if (UserOrMe.equals(GlobalVariables.ATTENEION_ME)) {
url = Config.getValue("AttentionMe");
} else {
url = Config.getValue("AttentionUser");
}
attentionUserModels = new ArrayList<AttentionUserModel>();
imageDownLoader = new ImageDownLoader(AttentionUserActivity.this);
footerLinearLayout = (LinearLayout) LayoutInflater.from(
AttentionUserActivity.this).inflate(R.layout.next_page_footer,
null);
footText = (TextView) footerLinearLayout.findViewById(R.id.footer_text);
isFirstEnter = true;
FanfanSharedPreferences fanfanSharedPreferences = new FanfanSharedPreferences(
AttentionUserActivity.this);
init();
getInformation("1");
}
private void init() {
// TODO Auto-generated method stub
listView = (ListView) findViewById(R.id.attention_user);
listView.addFooterView(footerLinearLayout, "aa", false);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
Intent intent = new Intent(AttentionUserActivity.this,
UserInfoShowActivity.class);
intent.putExtra("uid", attentionUserModels.get(position)
.getUid());
intent.putExtra("status", GlobalVariables.DISAVAILABLE_EDIT);
startActivity(intent);
}
});
listView.setOnScrollListener(new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// TODO Auto-generated method stub
if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE
&& (mFirstVisibleItem + mVisibleItemCount == totalItem)) {
if (currentPage <= all_pages) {
getInformation(String.valueOf(currentPage));
} else {
footText.setText("û�и���������");
// footerLinearLayout.setVisibility(View.GONE);
// listView.removeFooterView(footerLinearLayout);
}
}
if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE) {
showImage(mFirstVisibleItem, mVisibleItemCount);
} else {
cancleTask();
}
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// TODO Auto-generated method stub
mFirstVisibleItem = firstVisibleItem;
mVisibleItemCount = visibleItemCount;
totalItem = totalItemCount;
// ���������Ϊ�״ν����������������
if (isFirstEnter && visibleItemCount > 0) {
showImage(mFirstVisibleItem, mVisibleItemCount);
isFirstEnter = false;
}
}
});
}
private void showImage(int firstVisibleItem, int visibleItemCount) {
// ע��firstVisibleItem + visibleItemCount-1 = 20 1���а�����footview�����һ��ҪС�ģ�
for (int i = firstVisibleItem; i < firstVisibleItem + visibleItemCount
- 1; i++) {
String mImageUrl = attentionUserModels.get(i).getUserImageUrl();
if (!mImageUrl.equals("")) {
mImageUrl = Config.getValue("userImageBaseUrl") + mImageUrl;
final ImageView mImageView = (ImageView) listView
.findViewWithTag(mImageUrl);
imageDownLoader.getBitmap(mImageUrl,
new onImageLoaderListener() {
public void onImageLoader(Bitmap bitmap, String url) {
if (mImageView != null && bitmap != null) {
mImageView.setImageBitmap(bitmap);
}
}
});
} else {
continue;
}
}
}
private void getInformation(String page) {
// TODO Auto-generated method stub
RequestParams params = new RequestParams();
AsyncHttpClient client = new AsyncHttpClient();
params.put("uid", uid);
params.put("page", page);
params.put("perpage", String.valueOf(per_page));
client.get(url, params, new AsyncHttpResponseHandler() {
@Override
public void onSuccess(int arg0, Header[] arg1, byte[] arg2) {
// TODO Auto-generated method stub
try {
JSONObject jsonObject = new JSONObject(new String(arg2));
int errno = jsonObject.getInt("errno");
if (errno == -1) {
String err = jsonObject.getString("err");
Toast.makeText(AttentionUserActivity.this, err,
Toast.LENGTH_SHORT).show();
} else {
String rsm = jsonObject.getString("rsm");
JSONObject jsonObject2 = new JSONObject(rsm);
String total_rows = jsonObject2.getString("total_rows");
if (currentPage == 1) {
int totalPages = Integer.parseInt(total_rows);
int a = totalPages % per_page;
if (a == 0) {
all_pages = totalPages / per_page;
} else {
all_pages = totalPages / per_page + 1;
}
}
String rows = jsonObject2.getString("rows");
JSONArray jsonArray = new JSONArray(rows);
for (int i = 0; i < jsonArray.length(); i++) {
AttentionUserModel userModel = new AttentionUserModel();
JSONObject jsonObject3 = jsonArray.getJSONObject(i);
String uid = jsonObject3.getString("uid");
String user_name = jsonObject3
.getString("user_name");
String avatar_file = jsonObject3
.getString("avatar_file");
String signature = jsonObject3
.getString("signature");
userModel.setUid(uid);
userModel.setUserName(user_name);
userModel.setSingnature(signature);
userModel.setUserImageUrl(avatar_file);
attentionUserModels.add(userModel);
}
}
if (currentPage == 1) {
adapter = new AttentionUserAdapter(
AttentionUserActivity.this, imageDownLoader,
attentionUserModels);
listView.setAdapter(adapter);
if (attentionUserModels.size() < per_page) {
footText.setText("û�и��������ˣ�");
}
currentPage++;
} else {
adapter.notifyDataSetChanged();
currentPage++;
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onFailure(int arg0, Header[] arg1, byte[] arg2,
Throwable arg3) {
// TODO Auto-generated method stub
}
});
}
public void cancleTask() {
imageDownLoader.cacelTask();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
if (item.getItemId() == android.R.id.home) {
this.finish();
}
return super.onOptionsItemSelected(item);
}
}