您好我正在处理列表视图，我只想在列表视图中设置值。我发布了如下代码。根据SimpleAdapter它只显示内容的名称。我也想显示计数。但是计数没有显示，在应用程序中它只显示textview的名称而不是计数。请建议我解决问题的方法。我还附上了截图。
import java.util.ArrayList;
import android.R.*;
import java.util.HashMap;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ActionBar;
import android.app.Dialog;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
public class Folders extends navigation_drawer_class {
static final String NEW = "new", OVERDUE = "overdue", ASSIGNED = "assigned", TRASH = "trash", SPAM = "spam", NAME = "name", COUNT = "count";
ListView folders_list;
String[] folders;
String[] filter_id = {
"2",
"3",
"4",
"5",
"6"
};
List < String > folder_count;
JSONArray quick_view_array;
JSONObject quick_view_obj, count_obj;
String new_count, overdue_count, assigned_count, trash_count, spam_count;
List < HashMap < String, String >> menuItems;
Dialog dialog;
String URL;
Operation op = new Operation();
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
//setContentView(R.layout.folders);
new getbrand().execute();
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
//-----------------------
getLayoutInflater().inflate(R.layout.folders, frameLayout);
mDrawerList.setItemChecked(position, true);
setTitle(listArray[position]);
//------------------------
if (Operation.isNetworkAvailable(this)) {
folders_list = (ListView) findViewById(R.id.folder_display_list);
new folders().execute();
folders_list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView << ? > parent, View view, int position, long id) {
// TODO Auto-generated method stub
String fid = filter_id[position];
String title = folders[position];
Intent i = new Intent(Folders.this, Tickets.class);
i.putExtra("filter_id", "&vis_filter_id=" + fid);
i.putExtra("title", title);
i.putExtra("set_queue", "no");
startActivity(i);
}
});
} else {
Operation.showToast(getApplicationContext(), R.string.no_network);
}
}
private class folders extends AsyncTask < Void, Void, JSONArray > {
Dialog dialog;
@Override
public void onPreExecute() {
dialog = new Dialog(Folders.this, android.R.style.Theme_Translucent_NoTitleBar);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.progressbar);
dialog.show();
}
@Override
protected JSONArray doInBackground(Void...params) {
// TODO Auto-generated method stub
URL = op.getUrl(getApplicationContext(), "ticket", "quick_view", "");
quick_view_array = JSONfunctions.getJSONfromURL(URL + "&vis_encode=json", Folders.this);
return quick_view_array;
}
@Override
public void onPostExecute(JSONArray quick_view_array) {
super.onPostExecute(quick_view_array);
try {
quick_view_obj = quick_view_array.getJSONObject(0);
count_obj = quick_view_obj.getJSONObject("count");
folder_count = new ArrayList < String > ();
folder_count.add(count_obj.getString(NEW));
folder_count.add(count_obj.getString(OVERDUE));
folder_count.add(count_obj.getString(ASSIGNED));
folder_count.add(count_obj.getString(TRASH));
folder_count.add(count_obj.getString(SPAM));
folders = getResources().getStringArray(R.array.folders);
menuItems = new ArrayList < HashMap < String, String >> ();
for (int i = 0; i < filter_id.length; i++) {
HashMap < String, String > map = new HashMap < String, String > ();
map.put(NAME, folders[i]);
map.put(COUNT, folder_count.get(i));
menuItems.add(map);
}
SimpleAdapter list = new SimpleAdapter(Folders.this,
menuItems,
R.layout.folders,
new String[] {
NAME,
COUNT
},
new int[] {
R.id.folder_name, R.id.folder_count
}
);
folders_list.setAdapter(list);
dialog.dismiss();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
MenuInflater menuInflater = getMenuInflater();
menuInflater.inflate(R.menu.home, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
String filter_id = null, Tickets_title = null;
int start_limit = 0, page_no = 1;
// TODO Auto-generated method stub
switch (item.getItemId()) {
case R.id.menu_inbox:
Intent inbox = new Intent(Folders.this, Tickets.class);
inbox.putExtra("filter_id", "&vis_filter_id=1");
inbox.putExtra("title", "Inbox");
inbox.putExtra("set_queue", "no");
startActivity(inbox);
return true;
case R.id.menu_new_ticket:
Intent new_ticket = new Intent(Folders.this, New_Ticket_step1.class);
startActivity(new_ticket);
return true;
case R.id.menu_ticket_queue:
Intent ticket_queue = new Intent(Folders.this, Queues.class);
ticket_queue.putExtra("set_queue", "set");
startActivity(ticket_queue);
return true;
case R.id.menu_clients:
Intent clients = new Intent(Folders.this, Client.class);
startActivity(clients);
return true;
/* case R.id.menu_blabby:
Intent blabby = new Intent(Folders.this,Blabby.class);
blabby.putExtra("operation","get_blabs");
blabby.putExtra("filter","");
blabby.putExtra("title",(String)getString(R.string.blabs));
startActivity(blabby);
return true; */
//-------- Added for separate page
case R.id.menu_pin:
Intent pin = new Intent(Folders.this, Pinned_items.class);
startActivity(pin);
return true;
//-------- Added for separate page
case R.id.menu_settings:
Intent settings = new Intent(Folders.this, Settings.class);
startActivity(settings);
return true;
case R.id.menu_ticket_search:
Intent search = new Intent(Folders.this, Search.class);
search.putExtra("set_queue", "no");
startActivity(search);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onBackPressed() {
moveTaskToBack(true);
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
this.finish();
}
private class getbrand extends AsyncTask < Void, Void, JSONArray > {
Dialog dialog;
@Override
public void onPreExecute() {
dialog = new Dialog(Folders.this, android.R.style.Theme_Translucent_NoTitleBar);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setContentView(R.layout.progressbar);
dialog.show();
}
@Override
protected JSONArray doInBackground(Void...params) {
// TODO Auto-generated method stub
String access = op.getUrl(getApplicationContext(), "ticket", "get_branding", "");
JSONArray access_denied = JSONfunctions.getJSONfromURL(access + "&vis_encode=json", Folders.this);
return access_denied;
}
@Override
public void onPostExecute(JSONArray access_denied) {
super.onPostExecute(access_denied);
String access_result = access_denied.toString();
ActionBar ab = getActionBar();
if (access_result.equals("[\"1\"]")) {
ab.setTitle(R.string.app_name);
ab.setIcon(R.drawable.application_icon);
// ab.setDisplayShowTitleEnabled(false);
// ab.setDisplayShowHomeEnabled(false);
// ab.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ffffff")));
} else {
ab.setTitle(R.string.nobrand_app_name);
ab.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ffffff")));
ab.setIcon(R.drawable.white3);
}
dialog.dismiss();
}
}
}
XML：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:padding="3dp"
android:weightSum="100">
<TextView
android:id="@+id/folder_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_weight="30"
android:text="TextView"
android:textColor="#115c28"
android:textSize="15dp" />
<TextView
android:id="@+id/folder_count"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginRight="10dp"
android:layout_weight="70"
android:gravity="center"
android:text="0"
android:textColor="#115c28"
android:textSize="20dp"
android:textStyle="bold" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="35dp"
android:orientation="vertical">
<ListView
android:id="@+id/folder_display_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
</LinearLayout>
答案 0 :(得分：7)
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:padding="3dp"
android:weightSum="100">
<TextView
android:id="@+id/folder_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
第一个textview占据水平LinearLayout的整个宽度，因此您无法看到第二个textview。
您可以通过制作文字视图wrap_content的宽度来查看计数，但它可能不会与您尝试实现的设计相匹配。
答案 1 :(得分：0)
您好我只需按照以下方式对xml模板进行查找。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="top"
android:orientation="vertical"
android:weightSum="100"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<!-- -->
<TextView
android:id="@+id/folder_name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:paddingLeft="30dip"
android:textSize="15dp"
android:layout_weight="1"
android:textColor="#115c28"/>
<TextView
android:id="@+id/folder_count"
android:layout_width="0dp"
android:layout_height="60dp"
android:textSize="20dp"
android:textStyle="bold"
android:textColor="#115c28"
android:gravity="center"
android:paddingRight="30dip"
android:paddingLeft="35dip"
android:layout_weight="1" />
<!-- -->
</LinearLayout>
<ListView
android:id="@+id/folder_display_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
现在正常工作。