このクラスは Acitvity で拡張され、その前は ListActivity で拡張されていました。これは、このクラスに setEmptyView を使用するのが好きだからです。しかし、このクラスをアクティビティで拡張するように変更した後、そのリスト項目をクリックしてもダイアログが表示されませんでした。誰かアドバイスをいただけますか?
ThirdActivity.java
public class ThirdActivity extends Activity{
Bundle b;
String user,line,result,datapassed,list;
DefaultHttpClient httpclient;
HttpPost httppost;
HttpResponse response;
InputStream is = null;
BufferedReader reader;
StringBuilder sb;
ArrayList<NameValuePair> nameValuePairs;
ListView lv;
IntentFilter intentFilter;
int notification = 1;
String str = "";
byte[] data;
int dlength;
String[] item = {"Track Location","Remove Friend"};
ArrayAdapter<String> adapter;
ArrayList<String> friend;
TextView emptyText;
public void onCreate(Bundle savedInstancesState)
{
super.onCreate(savedInstancesState);
setContentView(R.layout.list_screen);
user = getIntent().getExtras().getString("user");
Log.d("dg",user);
lv = (ListView) findViewById(R.id.list);
emptyText = (TextView)findViewById(R.id.empty);
getList();
}
}
public void getList(){
new Thread(){
public void run(){
try{
httpclient = new DefaultHttpClient();
httppost = new HttpPost("http://www.kryptoquest.com/tracker/friendlist.php");
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("Username", user));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response = httpclient.execute(httppost);
is = response.getEntity().getContent();
}catch(Exception e){
Log.e("log_tag", "Error:"+e.toString());
}
//convert response to string
try{
reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
sb = new StringBuilder();
line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
Log.d("test",sb.toString());
is.close();
result = sb.toString();
result = result.substring(0, result.length()-1);
// Log.d("result",result);
friend = new ArrayList<String>(Arrays.asList(result.split("[*]")));
Log.d("size",String.valueOf(friend.size()));
runOnUiThread(new Runnable()
{
public void run(){
adapter = new ArrayAdapter<String>(ThirdActivity.this,android.R.layout.simple_list_item_1,friend);
lv.setAdapter(adapter);
lv.setEmptyView(emptyText);
}
});
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
}
}.start();
}
public void onItemClick( View v, final int position, long id){
AlertDialog.Builder adb = new AlertDialog.Builder(ThirdActivity.this);
adb.setItems(item, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(ThirdActivity.this, item[which], Toast.LENGTH_LONG).show();
if(item[which].equals("Track Location")){
AlertDialog.Builder adb = new AlertDialog.Builder(
ThirdActivity.this);
adb.setIcon(R.drawable.location);
adb.setTitle("Friend Location");
adb.setMessage("Do you want to track "
+ lv.getItemAtPosition(position) + "'s location?");
adb.setPositiveButton("Yes",
new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int whichButton)
{
new Thread(){
public void run(){
try{
httpclient = new DefaultHttpClient();
httppost = new HttpPost("http://www.kryptoquest.com/tracker/track.php");
nameValuePairs = new ArrayList<NameValuePair>(2);
Log.d("12345678",user);
nameValuePairs.add(new BasicNameValuePair("Targetname", (String) lv.getItemAtPosition(position)));
Log.d("Targetname",(String) lv.getItemAtPosition(position));
nameValuePairs.add(new BasicNameValuePair("Username", user));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response = httpclient.execute(httppost);
is = response.getEntity().getContent();
}catch(Exception e){
Log.e("log_tag", "Error:"+e.toString());
}
//convert response to string
try{
reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
sb = new StringBuilder();
line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
Log.d("test",sb.toString());
is.close();
result = sb.toString();
Intent i = new Intent(ThirdActivity.this,Map.class);
i.putExtra("location", result);
startActivity(i);
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
}
}.start();
}
});
adb.setNegativeButton("No", null);
adb.show();
}else{
AlertDialog.Builder adb=new AlertDialog.Builder(ThirdActivity.this);
adb.setTitle("Delete?");
adb.setMessage("Are you sure you want to delete " + (String) lv.getItemAtPosition(position));
Log.d("index", String.valueOf(position));
adb.setNegativeButton("Cancel", null);
adb.setPositiveButton("Ok", new AlertDialog.OnClickListener() {
String delete = (String) ((lv.getAdapter()).getItem(position));
public void onClick(DialogInterface dialog, final int which) {
// lv.invalidateViews();
new Thread(){
public void run(){
try{
httpclient = new DefaultHttpClient();
httppost = new HttpPost("http://www.kryptoquest.com/tracker/remove.php");
nameValuePairs = new ArrayList<NameValuePair>(2);
Log.d("12345678",user);
nameValuePairs.add(new BasicNameValuePair("Targetname", (String) lv.getItemAtPosition(position)));
nameValuePairs.add(new BasicNameValuePair("Username", user));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response = httpclient.execute(httppost);
is = response.getEntity().getContent();
data = new byte[256];
StringBuffer buffer = new StringBuffer();
int len = 0; //100
while (-1 != (len = is.read(data)) )
{
buffer.append(new String(data, 0, len));
}
Log.d("MainActivity", buffer.toString());
if(buffer.charAt(0)=='Y')
{
runOnUiThread(new Runnable()
{
public void run()
{
Toast.makeText(ThirdActivity.this, (String)lv.getItemAtPosition(position)+" has removed from friendlist", Toast.LENGTH_LONG).show();
friend.remove(delete);
adapter.notifyDataSetChanged();
}
});
}
else
{
runOnUiThread(new Runnable()
{
public void run()
{
Toast.makeText(ThirdActivity.this, "Friend remove failed", Toast.LENGTH_LONG).show();
}
});
}
is.close();
}catch(Exception e){
Log.e("log_tag", "Error:"+e.toString());
}
}
}.start();
}});
adb.show();
}
}
});
AlertDialog ad = adb.create();
ad.show();
}
list_screen.xml
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ListView android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<TextView android:id="@+id/empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="@string/no_friend"
android:gravity="center_vertical|center_horizontal"
/>
</LinearLayout>