我使用自定义列表视图适配器从JSON文件（因为我的应用程序将要脱机）填充列表视图。列表视图根据类别进行过滤，当我运行我的应用程序时，日志猫没有给我任何错误，但列表视图只填充每个类别的项目。这是我的代码和JSON文件的示例。代码有点乱，它是一个巨大的循环。
Intent intent = CategoryItemsActivity.this.getIntent();
String category = (String) intent.getExtras().get("categoryName");
int destinationId = intent.getExtras().getInt("destinationID");
String feed = loadJSONFromAsset();
try {
JSONObject mJsonObj = new JSONObject(feed);
JSONArray jsonArray = mJsonObj.getJSONArray("partners");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
String name = jsonObject.getString("name");
String categoryname = jsonObject.getString("category_name");
Double lat = jsonObject.getDouble("lat");
Double lng = jsonObject.getDouble("lang");
String address = jsonObject.getString("address");
int destid = jsonObject.getInt("destination_id");
String thumbnail_image = jsonObject
.getString("thumbnail_image");
compare.put(name, destid);
hashmapNames.put(categoryname, name);
hashmapAddress.put(name, address);
thumbnailimages.put(name, thumbnail_image);
latitudes.put(name, lat);
longitudes.put(name, lng);
}
} catch (Exception e) {
e.printStackTrace();
}
for (Entry<String, Integer> entry1 : compare.entrySet()) {
String key1 = entry1.getKey();
int value1 = entry1.getValue();
if (destinationId == value1) {
for (Entry<String, String> entry2 : hashmapNames.entrySet()) {
String key2 = entry2.getKey();
String value2 = entry2.getValue();
for (Entry<String, String> entry3 : hashmapAddress
.entrySet()) {
String key3 = entry3.getKey();
String value3 = entry3.getValue();
for (Entry<String, String> entry4 : thumbnailimages
.entrySet()) {
String key4 = entry4.getKey();
String value4 = entry4.getValue();
if (category.equals(key2) && key1.equals(value2)
&& key3.equals(value2)
&& key4.equals(value2)) {
setTitle(key2);
addresses.add(value3);
names.add(key1);
int resID = getResources().getIdentifier(
value4,
"drawable",
CategoryItemsActivity.this
.getPackageName());
images.add(resID);
rowItems = new ArrayList<RowItem>();
for (int x = 0; x < names.size(); x++) {
RowItem item = new RowItem(
images.get(x), names.get(x),
addresses.get(x));
rowItems.add(item);
}
CustomListViewAdapter adapter1 = new CustomListViewAdapter(
this, R.layout.list_item_2, rowItems);
listview.setAdapter(adapter1);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(
AdapterView<?> parent, View view,
int position, long id) {
RowItem name = (RowItem) parent
.getItemAtPosition(position);
Intent i = new Intent(
CategoryItemsActivity.this,
PartnersInfo.class);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
i.putExtra("PartnerName",
name.toString());
startActivity(i);
}
});
for (Entry<String, Double> entry5 : longitudes
.entrySet()) {
String key5 = entry5.getKey();
Double value5 = entry5.getValue();
for (Entry<String, Double> entry6 : latitudes
.entrySet()) {
String key6 = entry6.getKey();
Double value6 = entry6.getValue();
if (key5.equals(value2)
&& key6.equals(value2)) {
Marker marker = map
.addMarker(new MarkerOptions()
.position(
new LatLng(
value6,
value5))
.title(key5));
}
}
}
}
}
}
}
}
}
}
这是我的JSON文件：
{
"partners": [
{
"id": "1",
"name": "Bunk Hostel",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Accommodation",
"thumbnail_image":"thumbnail",
"address": "Bunk Hostel Address",
"stringInfo": "this text is for bunk hostel",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "2",
"name": "Accomo",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Accommodation",
"thumbnail_image":"thumbnail",
"address": "sample Address",
"stringInfo": "this text is for sample",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "3",
"name": "Tamazra Tour",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Tours",
"address": "Tamazra Address",
"stringInfo": "this text is for tamazra tour",
"thumbnail_image": "thumbnail",
"lat":"41.035527",
"lang":"28.978282",
"url": "hikeastUrl"
},
{
"id": "4",
"name": "new Tour",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Tours",
"address": "new Address",
"stringInfo": "this text is for new tour",
"thumbnail_image": "thumbnail",
"lat":"41.035527",
"lang":"28.978282",
"url": "hikeastUrl"
},
{
"id": "5",
"name": "Arsen Lupen",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Pubs",
"address": "Arsen Lupen Address",
"stringInfo": "this text is for Arsen Lupen",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
}, {
"id": "6",
"name": "Arsen new",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Pubs",
"address": "Arsen new Address",
"stringInfo": "this text is for Arsen Lupen",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "7",
"name": "Cukur Meyhane",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Restaurants",
"address": "Cukur Meyhane Address",
"stringInfo": "this text is for Cukur Meyhane",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "8",
"name": "new restaurant",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Restaurants",
"address": "new restaurant Address",
"stringInfo": "this text is for Cukur Meyhane",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "9",
"name": "Aponia Stores",
"location_name": "Beyoglu",
"destination_id": "004",
"category_name": "Shops",
"address": "Aponia Adress Address",
"stringInfo": "this text is for Aponia",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "10",
"name": "Artwalk",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Activities",
"address": "artwalk Address",
"stringInfo": "this text is for artwalk",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "11",
"name": "new actv",
"location_name": "Beyoglu",
"destination_id":"004",
"category_name": "Activities",
"address": "new actv Address",
"stringInfo": "this text is for artwalk",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
},
{
"id": "12",
"name": "Sample",
"location_name": "",
"destination_id": "004",
"category_name": "Shops",
"address": "Sample",
"stringInfo": "this text is for Sample",
"thumbnail_image": "thumbnail",
"lat":"41.034898",
"lang":"28.982929",
"url": "hikeastUrl"
}
]
}