私のアプリケーションでは、ドロップダウン ナビゲーション メニューでページ間のナビゲーションを作成しようとしていますが、アプリケーションを実行しているときにリストに項目がありません。
主な活動
public class Main extends SherlockFragmentActivity implements OnNavigationListener{
//----------------------------------New Variables
private static final String KEY_MODELS="models";
private static final String KEY_POSITION="position";
private static final String[] labels= { "All", "Downloads","Completed","Later" };
private CharSequence[] models=new CharSequence[4];
private DownloadList frag=null;
private int lastPosition=-1;
//----------------------------------
ActionBar act;
ViewPager myviewpager;
int mSelectedPageIndex=1;
DownloadService downloadservice;
Intent serviceIntent ;
@Override
public void onCreate(Bundle state) {
super.onCreate(state);
frag=(DownloadList)getSupportFragmentManager().findFragmentById(android.R.id.content);
if (frag==null) {
frag=new DownloadList();
getSupportFragmentManager().beginTransaction()
.add(android.R.id.content, frag).commit();
}
if (state != null) {
models=state.getCharSequenceArray(KEY_MODELS);
}
if (downloadservice==null)
downloadservice= new DownloadService();
ArrayAdapter<String> nav=null;
act=getSupportActionBar();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH)
{
nav= new ArrayAdapter<String>(act.getThemedContext(),
android.R.layout.simple_spinner_item,labels);
}
else
{
nav=new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,labels);
}
nav.setDropDownViewResource(android.R.layout.simple_list_item_1);
act.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
act.setDisplayShowTitleEnabled(false);
act.setHomeButtonEnabled(false);
act.setListNavigationCallbacks(nav, this);
if (state != null) {
act.setSelectedNavigationItem(state.getInt(KEY_POSITION));
}
serviceIntent= new Intent(Main.this,downloadservice.getClass());
if (startService(serviceIntent)==null)
startService(serviceIntent);
act.setTitle("");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater infalter = getSupportMenuInflater();
infalter.inflate(R.menu.mymenu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId()==R.id.sub1)
{
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Downlaod New File");
alert.setMessage("Enter URL");
final EditText input = new EditText(this);
alert.setView(input);
input.setText( "http://205.196.123.184/ddpha7c5b8lg/616c36j0d1xbztf
/Lecture+ppt+Ch2.ppt");
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String value = input.getText().toString();
downloadservice.addandstart(value);
Log.d("value",value);
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
});
alert.show();
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
}
@Override
public boolean onNavigationItemSelected(int itemPosition, long itemId) {
lastPosition=itemPosition;
frag=(DownloadList)getSupportFragmentManager().findFragmentById(android.R.id.content);
return false;
}
カスタム アダプターと SherlockFragmentList
public class DownloadList extends SherlockListFragment {
int index=0;
Button downloadButton;
Button pauseButton;
Button resumeButton;
TextView textLink;
TextView progressbar;
DownloadService downloadservice= new DownloadService();
MyAdapter listadapter;
Intent serviceIntent ;
String state;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getActivity().setContentView(R.layout.downloadlist);
setListAdapter(new MyAdapter(getSherlockActivity(), downloadservice.downloads));
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle
savedInstanceState) {
View rootView = inflater.inflate(R.layout.downloadlist, container, false);
setListAdapter(new MyAdapter(getSherlockActivity(), downloadservice.downloads));
return rootView;
}
int getIndex()
{
return index;
}
public class MyAdapter extends ArrayAdapter<NewDownload>
{
private final List<NewDownload> list;
//private final Activity context;
Thread t;
public MyAdapter(Context context,List<NewDownload> list) {
super(context, R.layout.list_item, list);
// this.context = (Activity) context;
this.list = list;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater)
getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.list_item, null);
pauseButton = (Button) row.findViewById(R.id.btn1);
resumeButton = (Button) row.findViewById(R.id.btn2);
textLink = (TextView) row.findViewById(R.id.tv1);
progressbar = (TextView) row.findViewById(R.id.progressBar1);
textLink.setText(downloadservice.downloads.get(position).getName());
progressbar.setBottom(downloadservice.downloads.get(position).getDownloadedSize());
progressbar.setTop(downloadservice.downloads.get(position).getTotalSize());
final int p = position;
final NewDownload r = list.get(p);
if (r.state=="downloading")
{
progressbar.setText("DownLoading...");
pauseButton.setEnabled(true);
resumeButton.setEnabled(false);
}
else if (r.state=="pause")
{
pauseButton.setEnabled(false);
resumeButton.setEnabled(true);
progressbar.setText(r.state);
}
pauseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
downloadservice.pause(p);
setListAdapter(listadapter );
}
});
resumeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (getActivity().startService(serviceIntent)==null)
getActivity().startService(serviceIntent);
downloadservice.resume(p);
setListAdapter(listadapter );
}
});
return row;
}
}
誰でも私のリストを正しく実装する方法を教えてもらえますか?私の間違いはどこにありますか? ありがとう