我正在实现自定义列表视图，但问题是多次调用 getview 方法，即如果列表视图中有 4 个项目，则每个列表项调用 getview 方法 4 次
代码在这里..
通知.java
public class Notifications extends ListActivity implements
AsyncTaskCompleteListener, OnClickListener {
private ArrayList<HashMap<String, String>> unreadNotifications = new ArrayList<HashMap<String, String>>();
private ArrayList<HashMap<String, String>> upcommingNotifications = new ArrayList<HashMap<String, String>>();
private ArrayList<String> days = new ArrayList<String>();
private MyAsyncTask notificationsAsyncTask;
private NotificationAdapter adapter;
Button btn_Unread, btn_upcomming;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dash_notifications_layout);
initialise();
ArrayList<NameValuePair> argumentsList = new ArrayList<NameValuePair>();
argumentsList = PlutoNameValuePairs.getNotificationNVPair("1",
"consumer_show");
notificationsAsyncTask = new MyAsyncTask(Notifications.this,
PlutoConstants.notificationUrl, argumentsList, 1);
notificationsAsyncTask.execute();
notificationsAsyncTask.setOnResultsListener(this);
btn_Unread.setOnClickListener(this);
btn_upcomming.setOnClickListener(this);
}
private void initialise() {
btn_Unread = (Button) findViewById(R.id.btn_unread_notifications);
btn_upcomming = (Button) findViewById(R.id.btn_upcomming_notifications);
}
@Override
public void onResultsSucceeded(String result, int asyncTaskNo) {
Logger.logger("Notification ", "Result = " + result);
try {
JSONObject jsonResponce = new JSONObject(result);
Logger.logger("Result : " + jsonResponce);
switch (asyncTaskNo) {
case 1:
if (unreadNotifications == null) {
unreadNotifications = new ArrayList<HashMap<String, String>>();
} else {
unreadNotifications.clear();
}
parseDataForNotification(jsonResponce, unreadNotifications,
asyncTaskNo);
break;
case 2:
if (upcommingNotifications == null) {
upcommingNotifications = new ArrayList<HashMap<String, String>>();
} else {
unreadNotifications.clear();
upcommingNotifications.clear();
}
parseDataForNotification(jsonResponce, upcommingNotifications,
asyncTaskNo);
default:
break;
}
} catch (JSONException e) {
Logger.errorLog("Does not found json Object");
e.printStackTrace();
}
}
public void parseDataForNotification(JSONObject jsonResponce,
ArrayList<HashMap<String, String>> listToModify, int arrayCheck) {
int i = 0;
JSONArray dislpayArray = null;
try {
if (arrayCheck == 1) {
dislpayArray = jsonResponce.getJSONArray("Unread");
} else {
dislpayArray = jsonResponce.getJSONArray("Unsend");
}
for (i = 0; i < dislpayArray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
JSONObject e = dislpayArray.getJSONObject(i);
map.put("category_name", e.getString("category_name"));
map.put("time", e.getString("time"));
map.put("repeat_status", e.getString("repeat_status"));
if (e.has("day")) {
JSONArray day_array = e.getJSONArray("day");
for (int j = 0; j < day_array.length(); j++) {
JSONObject day = day_array.getJSONObject(j);
map.put("day", day.getString("day"));
days.add(day.getString("day"));
}
}
unreadNotifications.add(map);
adapter = new NotificationAdapter(Notifications.this,
R.layout.dash_custom_notifications_layout,
unreadNotifications, i, days);
setListAdapter(adapter);
}
} catch (JSONException e) {
Log.e("log_tag", "Error parsing data " + e.toString());
}
//
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_unread_notifications:
ArrayList<NameValuePair> argumentsList = new ArrayList<NameValuePair>();
argumentsList = PlutoNameValuePairs.getNotificationNVPair("1",
"consumer_show");
notificationsAsyncTask = new MyAsyncTask(Notifications.this,
PlutoConstants.notificationUrl, argumentsList, 1);
notificationsAsyncTask.execute();
notificationsAsyncTask.setOnResultsListener(this);
break;
case R.id.btn_upcomming_notifications:
days.clear();
ArrayList<NameValuePair> argumentsList1 = new ArrayList<NameValuePair>();
argumentsList1 = PlutoNameValuePairs.getNotificationNVPair("1",
"consumer_show");
notificationsAsyncTask = new MyAsyncTask(Notifications.this,
PlutoConstants.notificationUrl, argumentsList1, 2);
notificationsAsyncTask.execute();
notificationsAsyncTask.setOnResultsListener(this);
break;
}
}
}
NotificationAdapter.java
public class NotificationAdapter extends BaseAdapter {
Context context;
private ArrayList<HashMap<String, String>> listUnread;
private LayoutInflater inflater;
String daysInAdapter[] = new String[] { "Sun", "Mon", "Tue", "Wed", "Thur",
"Fri", "Sat" };
private ArrayList<String> days;
public NotificationAdapter(Context context, int landedMyCustomLayout,
ArrayList<HashMap<String, String>> listUnread, int i,
ArrayList<String> days) {
this.context = context;
this.listUnread = listUnread;
//this.count = i;
this.days = days;
// daysInAdapter = {"Sun","Mon","Tue","Wed","Thur","Fri","Sat"};
}
@Override
public int getCount() {
return listUnread.size();
}
@Override
public HashMap<String, String> getItem(int position) {
return listUnread.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
HashMap<String, String> map = getItem(position);
if (convertView == null) {
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(
R.layout.dash_custom_notifications_layout, parent, false);
}
TextView txt_time = (TextView) convertView.findViewById(R.id.txt_time);
TextView txt_category_name = (TextView) convertView
.findViewById(R.id.txt_category_name_1);
txt_time.setText(map.get("time"));
txt_category_name.setText(map.get("category_name"));
ImageView img = (ImageView) convertView
.findViewById(R.id.img_repeat_status);
if (map.get("repeat_status").equals("1")) {
img.setImageResource(R.drawable.ic_launcher);
} else {
img.setImageResource(R.drawable.temp_stub);
}
TextView txt_day_sun = (TextView) convertView
.findViewById(R.id.txt_days_sun);
txt_day_sun.setText("");
for (int j = 0; j < days.size(); j++) {
txt_day_sun.append(days.get(j)+" ");
}
return convertView;
}
}
dash_notification_)layout.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:foo="http://schemas.android.com/apk/res/com.pluto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:id="@+id/rl_notification_buttons"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffff" >
<com.oab.widgets.ButtonPlus
android:id="@+id/btn_unread_notifications"
style="@style/button_theme"
foo:customFont="@string/font_name"
android:text="Unread" />
<com.oab.widgets.ButtonPlus
android:id="@+id/btn_upcomming_notifications"
style="@style/button_theme"
android:layout_toRightOf="@id/btn_unread_notifications"
foo:customFont="@string/font_name"
android:text="Upcomming" />
<com.oab.widgets.TextViewPlus
android:id="@+id/txt_Notification_count"
style="@style/textview_theme"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="15dp"
foo:customFont="@string/font_name"
android:gravity="center_horizontal"
android:text="2 New Notifications"
android:textSize="12sp" />
</RelativeLayout>
<ListView
android:id="@id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/rl_notification_buttons"
android:layout_weight="1"
android:drawSelectorOnTop="false" />
<include
android:id="@+id/btn_menu_bar"
android:layout_alignParentBottom="true"
layout="@layout/app_menuforxml_layout" />
</RelativeLayout>