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package de.danoeh.antennapod.activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.SparseBooleanArray;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.core.export.opml.OpmlElement;
import de.danoeh.antennapod.core.preferences.UserPreferences;
/**
* Displays the feeds that the OPML-Importer has read and lets the user choose
* which feeds he wants to import.
*/
public class OpmlFeedChooserActivity extends AppCompatActivity {
public static final String EXTRA_SELECTED_ITEMS = "de.danoeh.antennapod.selectedItems";
private static final String TAG = "OpmlFeedChooserActivity";
private Button butConfirm;
private Button butCancel;
private ListView feedlist;
private ArrayAdapter<String> listAdapter;
private MenuItem selectAll;
private MenuItem deselectAll;
@Override
protected void onCreate(Bundle savedInstanceState) {
setTheme(UserPreferences.getTheme());
super.onCreate(savedInstanceState);
setContentView(R.layout.opml_selection);
butConfirm = (Button) findViewById(R.id.butConfirm);
butCancel = (Button) findViewById(R.id.butCancel);
feedlist = (ListView) findViewById(R.id.feedlist);
feedlist.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listAdapter = new ArrayAdapter<>(this,
android.R.layout.simple_list_item_multiple_choice,
getTitleList());
feedlist.setAdapter(listAdapter);
feedlist.setOnItemClickListener((parent, view, position, id) -> {
SparseBooleanArray checked = feedlist.getCheckedItemPositions();
int checkedCount = 0;
for (int i = 0; i < checked.size(); i++) {
if (checked.valueAt(i)) {
checkedCount++;
}
}
if(checkedCount == listAdapter.getCount()) {
selectAll.setVisible(false);
deselectAll.setVisible(true);
} else {
deselectAll.setVisible(false);
selectAll.setVisible(true);
}
});
butCancel.setOnClickListener(v -> {
setResult(RESULT_CANCELED);
finish();
});
butConfirm.setOnClickListener(v -> {
Intent intent = new Intent();
SparseBooleanArray checked = feedlist.getCheckedItemPositions();
int checkedCount = 0;
// Get number of checked items
for (int i = 0; i < checked.size(); i++) {
if (checked.valueAt(i)) {
checkedCount++;
}
}
int[] selection = new int[checkedCount];
for (int i = 0, collected = 0; collected < checkedCount; i++) {
if (checked.valueAt(i)) {
selection[collected] = checked.keyAt(i);
collected++;
}
}
intent.putExtra(EXTRA_SELECTED_ITEMS, selection);
setResult(RESULT_OK, intent);
finish();
});
}
private List<String> getTitleList() {
List<String> result = new ArrayList<>();
if (OpmlImportHolder.getReadElements() != null) {
for (OpmlElement element : OpmlImportHolder.getReadElements()) {
result.add(element.getText());
}
}
return result;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.opml_selection_options, menu);
selectAll = menu.findItem(R.id.select_all_item);
deselectAll = menu.findItem(R.id.deselect_all_item);
deselectAll.setVisible(false);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.select_all_item:
selectAll.setVisible(false);
selectAllItems(true);
deselectAll.setVisible(true);
return true;
case R.id.deselect_all_item:
deselectAll.setVisible(false);
selectAllItems(false);
selectAll.setVisible(true);
return true;
default:
return false;
}
}
private void selectAllItems(boolean b) {
for (int i = 0; i < feedlist.getCount(); i++) {
feedlist.setItemChecked(i, b);
}
}
}
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