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Ich bin neu in Android. Ich habe SearchView mit Filtermodus in Listview implementiert. Wenn ich auf ein Element klicke, öffnet sich eine neue Aktivität, die alle Daten, Definitionen und Beispiele enthält. Es funktioniert gut. Nachdem die Listenansicht gefiltert wurde und auf ein Element geklickt wurde, zeigen Sie einer neuen Aktivität eine falsche Position aus den Daten. Ich weiß nicht, wie ich das lösen soll. Ich brauche Hilfe.Android bekommen falsche Position nach Filter Listview mit SearchView
MainActivity
public class MainActivity extends Activity implements
SearchView.OnQueryTextListener {
// Declare Variables
ListView list;
SearchView mSearchView;
ArrayAdapter<String> adapter;
String[] definition;
String[] word;
String[] example;
int[] flag;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
// Get the view from listview_main.xml
setContentView(R.layout.listview_main);
// Generate sample data into string arrays
definition = new String[] { "loira burra",
"arrasa-corações" };
word = new String[] { "bimbo",
"heartthrob" };
example = new String[] { "She's a real bimbo.",
"He's a real heartthrob." };
flag = new int[] { R.drawable.bimbo,
R.drawable.heartthrob };
// Locate the ListView in listview_main.xml
list = (ListView) findViewById(R.id.listview);
mSearchView = (SearchView) findViewById(R.id.search_view);
// Pass results to ListViewAdapter Class
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, word);
// Binds the Adapter to the ListView
list.setAdapter(adapter);
list.setTextFilterEnabled(true);
setupSearchView();
// Capture ListView item click
list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent i = new Intent(MainActivity.this, SingleItemView.class);
// Pass all data definition
i.putExtra("definition", definition);
// Pass all data word
i.putExtra("word", word);
// Pass all data example
i.putExtra("example", example);
// Pass all data flag
i.putExtra("flag", flag);
// Pass a single position
i.putExtra("position", position);
// Open SingleItemView.java Activity
startActivity(i);
}
});
}
private void setupSearchView() {
mSearchView.setIconifiedByDefault(false);
mSearchView.setOnQueryTextListener(this);
mSearchView.setSubmitButtonEnabled(true);
mSearchView.setQueryHint("Search Here");
}
public boolean onQueryTextChange(String newText) {
if (TextUtils.isEmpty(newText)) {
list.clearTextFilter();
} else {
list.setFilterText(newText.toString());
}
return true;
}
public boolean onQueryTextSubmit(String query) {
return false;
}
}
Listview-Adapter
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context context;
String[] definition;
String[] word;
String[] example;
int[] flag;
LayoutInflater inflater;
public ListViewAdapter(Context context, String[] definition, String[] word,
String[] example, int[] flag) {
this.context = context;
this.definition = definition;
this.word = word;
this.example = example;
this.flag = flag;
}
@Override
public int getCount() {
return definition.length;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
// Declare Variables
TextView txtdefinition;
TextView txtword;
TextView txtexample;
ImageView imgflag;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = inflater.inflate(R.layout.listview_item, parent, false);
// Locate the TextViews in listview_item.xml
txtdefinition = (TextView) itemView.findViewById(R.id.definition);
txtword = (TextView) itemView.findViewById(R.id.word);
txtexample = (TextView) itemView.findViewById(R.id.example);
// Locate the ImageView in listview_item.xml
imgflag = (ImageView) itemView.findViewById(R.id.flag);
// Capture position and set to the TextViews
txtdefinition.setText(definition[position]);
txtword.setText(word[position]);
txtexample.setText(example[position]);
// Capture position and set to the ImageView
imgflag.setImageResource(flag[position]);
return itemView;
}
}
SingleItemActivity
public class SingleItemView extends Activity {
// Declare Variables
TextView txtdefinition;
TextView txtword;
TextView txtexample;
ImageView imgflag;
String[] definition;
String[] word;
String[] example;
int[] flag;
int position;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.singleitemview);
// Retrieve data from MainActivity on listview item click
Intent i = getIntent();
// Get a single position
position = i.getExtras().getInt("position");
// Get the list of definition
definition = i.getStringArrayExtra("definition");
// Get the list of word
word = i.getStringArrayExtra("word");
// Get the list of example
example = i.getStringArrayExtra("example");
// Get the list of flag
flag = i.getIntArrayExtra("flag");
// Locate the TextViews in singleitemview.xml
txtdefinition = (TextView) findViewById(R.id.definition);
txtword = (TextView) findViewById(R.id.word);
txtexample = (TextView) findViewById(R.id.example);
// Locate the ImageView in singleitemview.xml
imgflag = (ImageView) findViewById(R.id.flag);
// Load the text into the TextViews followed by the position
txtdefinition.setText(definition[position]);
txtword.setText(word[position]);
txtexample.setText(example[position]);
// Load the image into the ImageView followed by the position
imgflag.setImageResource(flag[position]);
}
}