我使用https://github.com/bulletnoid/StaggeredGridView这个库来制作一个 pinterest 样式的布局，并在这个布局上使用 pulltorefresh。我也有一个幻灯片菜单，用于选择不同的类别，并根据用户选择的类别，刷新并重新填充交错。
Pulltorefresh 工作正常。
如果用户在布局顶部并在幻灯片菜单上选择一个类别，则它可以正常工作。但是，如果用户在布局底部并在幻灯片菜单上选择一个类别，则无法正常工作。
场景、布局顶部并在幻灯片菜单上选择类别并重新填充交错布局。它工作正常
场景、布局底部并在幻灯片菜单上选择类别并重新填充交错布局。它无法正常工作
-->列表视图适配器
public void onItemClick(AdapterView<?> parent, View view, int position,
long arg3) {
// TODO Auto-generated method stub
switch (parent.getId()) {
case R.id.listView_sliding_menu:
smenu.toggle();
slidingMenuControl = true;
String categoryId = ((TextView) view.findViewById(R.id.categoryID))
.getText().toString();
parameters[0] = categoryId;
Toast.makeText(getApplicationContext(), categoryId,
Toast.LENGTH_LONG).show();
new PARSEJSONCATEGORYCONTENT().execute(parameters);
break;
default:
break;
}
}
-->解析器
private class PARSEJSONCATEGORYCONTENT extends
AsyncTask<String[], Void, ArrayList<Utils>> {
@Override
protected void onPreExecute() {
super.onPreExecute();
processDialoge();
}
protected ArrayList<Utils> doInBackground(String[]... params) {
String catId = params[0][0];
String startCount = params[0][5];
String count = params[0][6];
String urlCatContent = "http://212.58.8.109/webservice/api/content/cat/";
jArray = jsonParser.getJSONFromUrltoCategoryContent(urlCatContent,
Token, tokenValue, catId, startCount, count);
if (utilsArray == null) {
utilsArray = new ArrayList<Utils>();
} else if (slidingMenuControl == true) {
utilsArray.clear();
} else if (contentItemSelection != null) {
utilsArray.clear();
}
try {
// looping through All Contacts
for (int i = 0; i < jArray.length(); i++) {
JSONObject k = jArray.getJSONObject(i);
utils = new Utils();
// Storing each json item in variable
utils.imageUrl = k.getString("ipad_URL");
utils.imageWidth = k.getInt("ipad_width");
utils.imageHeight = k.getInt("ipad_height");
utils.categoryHeader = k.getString("contentHeader");
utils.contentDesc = k.getString("contentDesc");
utils.categoryContentId = k.getInt("id");
utils.contentTxt = k.getString("contentTxt");
Log.d("ipad_URL", utils.imageUrl);
utilsArray.add(utils);
}
String arrayLenght = Integer.toString(utilsArray.size());
Log.d("arrayLenght", arrayLenght);
} catch (JSONException e) {
e.printStackTrace();
}
return utilsArray;
}
protected void onPostExecute(ArrayList<Utils> utilsArray) {
staggeredAdapter.getMoreItemm(utilsArray);
// staggeredAdapter.setRefreshListener(false);
super.onPostExecute(utilsArray);
slidingMenuControl = false;
dialog.cancel();
}
}
-->BaseAdapter.java
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@SuppressLint("NewApi")
public class StaggeredAdapter extends BaseAdapter implements OnClickListener {
Typeface tf;
boolean refreshListener = false;
Utils utils;
private Context mContext;
private Application mAppContext;
private ArrayList<Utils> mUtilsArraylist = new ArrayList<Utils>();
public StaggeredAdapter(Context context, Application application) {
mContext = context;
mAppContext = application;
tf = Typeface.createFromAsset(mContext.getAssets(),
"font/Klavika-Medium.otf");
notifyDataSetChanged();
}
public void getMoreItemm(ArrayList<Utils> arrayList) {
mUtilsArraylist.clear();
mUtilsArraylist.addAll(arrayList);
this.notifyDataSetChanged();
}
public int getCount() {
return mUtilsArraylist == null ? 0 : mUtilsArraylist.size();
}
@Override
public Object getItem(int position) {
return mUtilsArraylist.get(position);
}
@Override
public long getItemId(int position) {
return mUtilsArraylist.indexOf(getItem(position));
}
@SuppressLint("NewApi")
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
utils = mUtilsArraylist.get(position);
if (convertView == null) {
Holder holder = new Holder();
view = View.inflate(mContext, R.layout.staggered_item, null);
holder.imgUrl_content = (STGVImageView) view
.findViewById(R.id.imgUrl_content);
holder.tv_info = (TextView) view.findViewById(R.id.contentHeader);
holder.tv_info.setTypeface(tf);
holder.tv_info2 = (TextView) view.findViewById(R.id.contentDesc);
holder.tv_info2.setTypeface(tf);
view.setTag(holder);
} else {
return convertView;
}
final Holder holder = (Holder) view.getTag();
holder.imgUrl_content.mHeight = utils.imageHeight;
holder.imgUrl_content.mWidth = utils.imageWidth;
holder.imgUrl_content.setOnClickListener(this);
ImageLoader imgLoader = new ImageLoader(mAppContext);
imgLoader.DisplayImage(utils.imageUrl, holder.imgUrl_content);
holder.tv_info.setText(utils.categoryHeader);
holder.tv_info.setOnClickListener(this);
holder.tv_info2.setText(utils.contentDesc);
holder.tv_info2.setOnClickListener(this);
return view;
}
class Holder {
public STGVImageView imgUrl_content;
public TextView tv_info;
public TextView tv_info2;
}
public boolean isRefreshListener() {
return refreshListener;
}
public void setRefreshListener(boolean refreshListener) {
this.refreshListener = refreshListener;
}
@Override
public void onClick(View view) {
// TODO Auto-generated method stub
switch (view.getId()) {
case R.id.imgUrl_content:
sendDataItemContentActivity();
break;
case R.id.contentHeader:
sendDataItemContentActivity();
break;
case R.id.contentDesc:
sendDataItemContentActivity();
break;
default:
break;
}
}
public void sendDataItemContentActivity() {
Intent intent = new Intent(mContext, ItemContent.class)
.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("contentTxt", utils.contentTxt);
intent.putExtra("contentHeader", utils.categoryHeader);
intent.putExtra("contentİmageUrl", utils.imageUrl);
intent.putExtra("contentCategoryName", utils.categoryName);
Bundle animBundle = ActivityOptions.makeCustomAnimation(mContext,
R.anim.anim, R.anim.anim2).toBundle();
mContext.startActivity(intent, animBundle);
}
}