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DBを扱うためにコンテンツプロバイダを使用するアプリケーションがあります。私はリストを持っていますが、これは膨らんでユーザーに表示されます。私は意図にそのリストを保存し、ここでI found hereカーソルからインテントへのリストを共有ボタンに追加する方法
が
1私のquestions-何であるかのような共有ボタンでそれを送信する必要がある）私はリストするカーソルを変換する必要はありますか私は2番目のリストを作成する必要がありますし、それをカーソルで膨らませるか、他に何か変種がありますか？ 2）受信したメッセージの外観をカスタマイズするにはどうすればよいですか？ここで
は私のコード - が
public class CatalogActivity extends AppCompatActivity implements LoaderManager.LoaderCallbacks<Cursor> {
private static final String TAG = "myLogs";
/** Identifier for the pet data loader */
private static final int LIST_LOADER = 0;
/** Adapter for the ListView */
ListCursorAdapter mCursorAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_catalog);
Log.v(TAG, "Зашли в catalog activity oncreate");
// Setup FAB to open EditorActivity
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(CatalogActivity.this, EditorActivity.class);
startActivity(intent);
}
});
// Find the ListView which will be populated with the list data
ListView listListView = (ListView) findViewById(R.id.list);
// Find and set empty view on the ListView, so that it only shows when the list has 0 items.
View emptyView = findViewById(R.id.empty_view);
listListView.setEmptyView(emptyView);
// Setup an Adapter to create a list item for each row of list data in the Cursor.
// There is no items data yet (until the loader finishes) so pass in null for the Cursor.
mCursorAdapter = new ListCursorAdapter(this, null);
listListView.setAdapter(mCursorAdapter);
// Setup the item click listener
listListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
ShoppingListBdHelper helper = new ShoppingListBdHelper(view.getContext());
if (helper.setCompleted(id)) {
mCursorAdapter.setCompleted(view);
}
}
});
// Kick off the loader
getSupportLoaderManager().initLoader(LIST_LOADER, null, this);
}
/**
* Helper method to insert hardcoded item data into the database. For debugging purposes only.
*/
private void insertPet() {
Log.v(TAG, "Создали insertpet");
Intent myIntent = new Intent(Intent.ACTION_SEND);
String shareBody = "Body here";
String shareSub = "Sub here";
myIntent.putExtra(Intent.EXTRA_TEXT, shareSub);
myIntent.putExtra(Intent.EXTRA_TEXT, shareBody);
myIntent.setType("text/plain");
startActivity(Intent.createChooser(myIntent, "Share using"));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu options from the res/menu/menu_catalog.xml file.
// This adds menu items to the app bar.
getMenuInflater().inflate(R.menu.menu_catalog, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// User clicked on a menu option in the app bar overflow menu
switch (item.getItemId()) {
// Respond to a click on the "Insert dummy data" menu option
case R.id.action_insert_dummy_data:
insertPet();
return true;
// Respond to a click on the "Delete all entries" menu option
case R.id.action_delete_all_entries:
deleteAllItems();
return true;
case R.id.menu_item_share:
shareIntent();
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* Helper method to delete all list in the database.
*/
private void deleteAllItems() {
Log.v(TAG, "Сработал метод удаления всех данных");
long rowsDeleted = getContentResolver().delete(ListContract.ListEntry.CONTENT_URI, null, null);
Log.v("CatalogActivity", rowsDeleted + " rows deleted from list database");
}
private void shareIntent(){
ArrayList<String> list = new ArrayList<String>();
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putStringArrayListExtra("test", (ArrayList<String>) list);
sendIntent.setType("text/plain");
startActivity(sendIntent);
}
@Override
public Loader<Cursor> onCreateLoader(int i, Bundle bundle) {
Log.v(TAG, "Начал работать loader cursor");
// Define a projection that specifies the columns from the table we care about.
String[] projection = {
ListContract.ListEntry._ID,
ListContract.ListEntry.COLUMN_ITEM_NAME,
ListContract.ListEntry.COLUMN_ITEM_DESCRIPTION,
ListContract.ListEntry.COLUMN_ITEM_COMPLETED
};
// This loader will execute the ContentProvider's query method on a background thread
return new CursorLoader(this, // Parent activity context
ListContract.ListEntry.CONTENT_URI, // Provider content URI to query
projection, // Columns to include in the resulting Cursor
null, // No selection clause
null, // No selection arguments
null); // Default sort order
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
// Update {@link ListCursorAdapter} with this new cursor containing updated pet data
mCursorAdapter.swapCursor(data);
Log.v(TAG, "Cursor adapter загрузился");
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
// Callback called when the data needs to be deleted
mCursorAdapter.swapCursor(null);
}
}