インストールされているアプリのリストを表示して、ユーザーがそのようなリストから複数のアプリを選択できるようにしたい。私はこれまでかなり成功し、アイコンを表示しましたが、リストの操作に行き詰まりました。タッチしてもアイテムが選択されず、ユーザーが完了したら選択したアイテムを取得する方法もわかりません。
コード：
PackageManager pm = getPackageManager(); //get a list of installed apps.
List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);
final ArrayList<AppsItem> apps = new ArrayList<AppsItem>(packages.size());
for (ApplicationInfo packageInfo : packages)
{
log.i("getting package list", "Installed package : %s name %s", packageInfo.packageName, pm.getApplicationLabel(packageInfo));
apps.add(new AppsItem(packageInfo.packageName, pm.getApplicationIcon(packageInfo), pm.getApplicationLabel(packageInfo).toString()));
}
Collections.sort(apps);
final ListAdapter adapter = new ArrayAdapter<AppsItem>(this, android.R.layout.select_dialog_multichoice, android.R.id.text1, apps)
{
public View getView(int position, View convertView, ViewGroup parent)
{
//User super class to create the View
View v = super.getView(position, convertView, parent);
CheckedTextView tv = (CheckedTextView) v.findViewById(android.R.id.text1);
final AppsItem itm = apps.get(position);
tv.setText(itm.appText);
//Put the image on the TextView
tv.setCompoundDrawablesWithIntrinsicBounds(itm.icon, null, null, null);
tv.setChecked(itm.selected);
tv.setOnClickListener(new OnClickListener()
{
public void onClick(View view)
{
CheckedTextView v = (CheckedTextView) view;
itm.selected = !itm.selected;
v.setChecked(itm.selected);
}
});
//Add margin between image and text (support various screen densities)
int dp5 = (int) (5 * getResources().getDisplayMetrics().density + 0.5f);
tv.setCompoundDrawablePadding(dp5);
return v;
}
};
AlertDialog.Builder alert = new AlertDialog.Builder(Settings.this);
alert.setTitle(rTitle);
alert.setAdapter(adapter, null);
alert.setPositiveButton(TX.s(android.R.string.ok), new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
String selApps = "";
for (AppsItem app: apps)
if (app.selected)
selApps += app.appID + ",";
if (selApps.length() > 0)
selApps = selApps.substring(0, selApps.length() - 1);
log.i("app selection", "selected apps: %s", selApps);
}}); //How to retrieve the clicked items here?
alert.setNegativeButton(TX.s(android.R.string.cancel), null);
alert.show();