我正在尝试显示所有已安装的应用程序及其图标。单击列表项后,我将显示该应用程序的相关记录。
应用程序和图标显示正确,但是当我单击列表项时出现以下错误。java.lang.classcastException android.content.pm.ResolveInfo
final PackageManager pm = this.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
final ArrayList<ResolveInfo> list = (ArrayList<ResolveInfo>) pm
.queryIntentActivities(intent,
PackageManager.PERMISSION_GRANTED);
for (ResolveInfo rInfo : list) {
Log.i("taa", ": Installed Applications "
+ rInfo.activityInfo.applicationInfo.loadLabel(pm)
.toString());
}
final ArrayAdapter<ResolveInfo> adapter = new ArrayAdapter<ResolveInfo>(
this, R.layout.installedapp, list) {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null)
convertView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.installedapp, parent, false);
final String text = list.get(position).activityInfo.applicationInfo
.loadLabel(pm).toString();
((TextView) convertView.findViewById(R.id.text)).setText(text);
final Drawable drawable = list.get(position).activityInfo.applicationInfo
.loadIcon(pm);
((ImageView) convertView.findViewById(R.id.image))
.setImageDrawable(drawable);
return convertView;
}
};
setListAdapter(adapter);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
}
protected void onListItemClick(ListView l, View v, int position, long id) {
String item = (String) getListAdapter().getItem(position);///////---->error
List<String> app_item = dh.getRecordItem(item);
// Toast.makeText(this, item + " selected", Toast.LENGTH_LONG).show();
Intent intent = new Intent(ApplicationList.this, AppContent.class);
Bundle bundle = new Bundle();
if (app_item.get(0).equals("No records")) {
Log.d("Set", "No Activity happened");
bundle.putString("list", app_item.toString());
} else {
Log.d("Set", "Act happened");
bundle.putString("list", app_item.toString());
}
intent.putExtras(bundle);
startActivity(intent);
}
我试图在日志中打印项目的值我得到了这个值resolverInfo{405437c0 com.android.camera gallaru pickerp=0 o=0 m=0x108000}
但我不想只得到相机。这样我的点击代码就可以工作了。我应该怎么做才能解决这个错误。谢谢。