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How to remove an image from gridview by using cross sign at the corner(Android)? [closed]

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enter image description here
i have already created gridview.i want to remove the images by a single click.
thank u.

Pretty simple,
Assuming that you are using recyclerview
class ViewHolder extends RecyclerView.ViewHolder {
View vCross;
ViewHolder(View itemView) {
vCross = itemView.findViewById(R.id.your_view_id) // Giving reference
vCross .setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Assuming dataset is your adapter dataset
dataSet.remove(getAdapterPosition());
notifyItemRemoved(getAdapterPosition());
}
});
}
}
Summary, In your ViewHolder, when user clicks on remove button - remove item from your adapter dataSet and notify adapter that, item has been removed at specific position.

How to Populate AutoCompleteTextView in Sqlite Database [closed]

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I am Developing a small Dictionary App Using Sqlite Database Where There are Two Columns..Word and Word Definition.. Now how can I populate AutoCompleteTextView So that When an user start to Type any Word for Searching I can Show him/her All the Words from word Column based On his/her first typed Letter?

Have you checkout the docs, there's a good example on how to use AutoCompleteTextView there.
public class CountriesActivity extends Activity {
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.countries);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_dropdown_item_1line, COUNTRIES);
AutoCompleteTextView textView = (AutoCompleteTextView)
findViewById(R.id.countries_list);
textView.setAdapter(adapter);
}
private static final String[] COUNTRIES = new String[] {
"Belgium", "France", "Italy", "Germany", "Spain"
};
}
Using the above example you would just need to retrieve your words into the array and pass it to the adapter.

listview setonitemclicklistener with arrayadapter [closed]

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When try tu add method setOnItemClikListener show me this error: setOnItemClikListener (ItemClikListener) in AdapterView cannot be applied to ().
My code is:
List<String> weekForecast = new ArrayList<String>(Arrays.asList(forecastArray));
mForecastAdapter = new ArrayAdapter<String>(getActivity(),R.layout.list_item_forecast,R.id.list_item_forecast_textview,weekForecast);
ListView listViewForecast = (ListView) rootView.findViewById(R.id.listview_forecast);
listViewForecast.setAdapter(mForecastAdapter);
listViewForecast.setOnItemClickListener();

Try the following :
List<String> weekForecast = new ArrayList<String>(Arrays.asList(forecastArray));
mForecastAdapter = new ArrayAdapter<String>
(getActivity(),android.R.layout.simple_list_item1,weekForecast);
ListView listViewForecast = (ListView) rootView.findViewById(R.id.listview_forecast);
listViewForecast.setAdapter(mForecastAdapter);
listViewForecast.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
//Do your thing here
}
});

Alternative to HIGHLY FLAWED SPINNER CLASS in Android [closed]

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in my current project i have dealt with spinner class which has been customized from almost every aspect possible. Thus i have gained some detailed aspects as i deal with it . So i will start with the part it shows why it is flawed.
1_There is no default listener that will be fired on pop up window/layout/dialog created-showed(layout inflated) event. There are some workarounds such as ontouch listener on spinner, then check if on touch finish happened in spinner area, then you know popup will be shown but still not reliable since you can fill popup with async task..
2_On item selected event does not fire when same index is selected again. This is really annoying since i may be updating the adapter depending on other conditions which will change current selection and list order etc... Of course there is a workaround way by creating own spinner class and adding it in xml like com.myproject.customspinner etc.....(Spinner : onItemSelected not called when selected item remains the same)
3_There is no working functional OnClickListener and OnItemLongTouchListener event for spinner.
4_Changing Spinner DropDown list divider element's attributes such as color requires more labor than changing all dropdrown and spinner' background views itself which is very absurd.
5_Spinner the name itself is very absurd =))).
So what can i use instead of Spinner? Which is best way to go?

You can create a custom spinner using ListPopupWindow to a TextView means when a TextView is clicked a ListPopupWindow open like spinner dropdown list and you can choose a element. If you need I will help you in that.
ListPopupWindow numberList;
TextView spDays;
ArrayList<Map<String, String>>() listTrans;
in oncreate() spDays.setonclicklistner(this);spDays.setText("Select");
setNumberListSpinnerView();
in onclick(){
when spDays clicked :- numberList.show();
}
void setNumberListSpinnerView() {
numberList= new ListPopupWindow(this);
numberList.setAnchorView(spDays);
numberList.setOnItemClickListener((new AdapterView.OnItemClickListener() {
#Override
getListItem();
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Map map = listTrans.get(position);
spDays.setText(map.get("circle_name").toString());
circle_name = map.get("circle_name") + "";
circle_id = map.get("circle_id").toString();
circleList.dismiss();
Log.d("Circle id:", circle_id + "");
getRetails();
}
}));
}
void getListItem(){
String[] numbers = {"1","2","3","4","5","6"};
listTrans = new ArrayList<Map<String, String>>();
LinkedHashMap<String, String> tran = new LinkedHashMap<String, String>();
for (String number : numbers) {
tran.put("numbers", number);
listTrans.add(tran);
}
SimpleAdapter adapter = new SimpleAdapter(AddRetailSurvey.this, listTrans,
android.R.layout.simple_spinner_dropdown_item,
new String[]{"numbers"},
new int[]{android.R.id.text1});
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
numberList.setAdapter(adapter);
}
Check this code and modify it according to your requirement. If you found any problem I am here to help you. :)

Putting a simplified kotlin version of the accepted answer here, which may help. At first make a ListPopupWindow member in your Activity or other class-
private val listPopupView by lazy { ListPopupWindow(this) }
Then initialize it in the onCreate() method-
val dataList = arrayOf("item1", "item2", "item3", "item4")
listPopupView.setAdapter(ArrayAdapter(this, android.R.layout.simple_list_item_1, dataList))
listPopupView.setOnItemClickListener { _, _, position, _ ->
selectionTextView.text = dataList[position]
listPopupView.dismiss()
// do other things on selection
}
listPopupView.anchorView = selectionTextView
selectionTextView.setOnClickListener { listPopupView.show() }
And you are done!

This shows you how to replace Spinner with your own implementation. It's pretty simple, the important thing is to use a PopupWindow containing a list view to imitate Spinner's layout behavior.
https://www.androidcode.ninja/show-listview-as-drop-down-android/
This fixes the issues with weird event handlers in Spinner's implementation. It's also much easier to customize.
The only problem with this approach is that like Spinner, it still uses PopupWindow, which causes weird bugs in the system UI when you're in immersive/fullscreen mode. But it's easier to handle those bugs when you don't also have to deal with Spinner's specific issues.

add item in array list of android [closed]

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I want to add value getting from text view of android to an existing array list.e.g. my current array list contain values Cricket,Football and by text view I want to add hockey in array list at last position ..then my array list become Cricket ,football,hockey. My array list of cricket and football is coming from previous activity.
But now it add only cricket and football but does not add hockey
How can I do it?
resultArrGame+=resultArrGame.add(txtGame.getText().toString());

This will definitely work for you...
ArrayList<String> list = new ArrayList<String>();
list.add(textview.getText().toString());
list.add("B");
list.add("C");

You're trying to assign the result of the add operation to resultArrGame, and add can either return true or false, depending on if the operation was successful or not. What you want is probably just:
resultArrGame.add(txt.Game.getText().toString());

you can use this add string to list on a button click
final String a[]={"hello","world"};
final ArrayAdapter<String> at=new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1,a);
final ListView sp=(ListView)findViewById(R.id.listView1);
sp.setAdapter(at);
final EditText et=(EditText)findViewById(R.id.editText1);
Button b=(Button)findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
// TODO Auto-generated method stub
int k=sp.getCount();
String a1[]=new String[k+1];
for(int i=0;i<k;i++)
a1[i]=sp.getItemAtPosition(i).toString();
a1[k]=et.getText().toString();
ArrayAdapter<String> ats=new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1,a1);
sp.setAdapter(ats);
}
});
So on a button click it will get string from edittext and store in listitem.
you can change this to your needs.

item=sp.getItemAtPosition(i).toString();
list.add(item);
adapter.notifyDataSetChanged () ;
look up ArrayAdapter.notifyDataSetChanged()