I am working on a project which uses a TableLayout, and the user can add a new row to the table layout. Each new row is inflated as a new view and then the view is added to the table layout. One of the controls within the row is an AutoCompleteTextView.
The user can start typing into the AutCompleteTextView and then select one of the items in the suggestion list, when the user selects the item, the selected item is added to the text box as expected, but I want to then set the cursor position as the user can then change the value of the text. For example, the selected item might be sometext() but they can amend the text after selecting it to become sometext(25), so I am trying to set the position of the cursor within the brackets.
This is working fine for one AutoCompleteTextView in the layout but I can't figure out how to do it when its dynamically generated.
I'm finding the AutoCompleteTextView from the inflated layout and creating a set on item click listener, and using the view parameter in the OnItemClick function to ensure I am using the correct view that triggered the event handler, but on the setSelection I am getting an exception java.lang.ClassCastException: android.support.v7.widget.AppCompatTextView cannot be cast to android.widget.AutoCompleteTextView
Below is the code I am using:
private void addRow()
{
TableRow row = (TableRow)LayoutInflater.from(this).inflate(R.layout.create_table_column_row, createTable, false);
txtColumnName = row.findViewById(R.id.txtColumnName);
txtDataType = row.findViewById(R.id.txtDataType);
txtDataType.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
txtDataType.showDropDown();
}
});
txtDataType.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
String selectedItem = parent.getItemAtPosition(position).toString();
//Check if the string has a ( and if so, set the cursor to be just after it so the user can enter the size
int bracketPos = selectedItem.indexOf("(");
if (bracketPos > 0)
{
//Crashes on this line
((AutoCompleteTextView)view).setSelection(bracketPos+1);
}
}
});
List<String> datatypes = Arrays.asList(getResources().getStringArray(R.array.table_datatypes));
datatypeAdapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, datatypes);
txtDataType.setAdapter(datatypeAdapter);
rowViews.add(row);
createTable.addView(row);
}
I tried casting the view to AppCompatTextView but then this doesn't have the setSelection() method.
The view in onItemClick() is the AppCompatTextView that is clicked in the drop down box for the AutoCompleteTextView. That is why you can't cast it.
Since you have multiple AutoCompleteTextViews, use a focus change listener to capture which AutoCompleteTextView is being addressed by the user. You can then use that value to set the position of the cursor.
private AutoCompleteTextView textView;
private AutoCompleteTextView mAuto;
textView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
mAuto = (AutoCompleteTextView) v;
}
});
textView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.d("MainActivity", "<<<<onItemClicked");
int bracketPos = textView.getText().toString().indexOf("(");
if (bracketPos > 0) {
mAuto.setSelection(bracketPos + 1);
}
}
});
I believe that the AutoCompleteTextView is already populated when this method is called, so you could just search for ( within that field.
Here is a slightly different way. After
txtDataType = row.findViewById(R.id.txtDataType);
add
txtDataType.setOnClickListener(new View.OnClickListener() {
private AutoCompleteTextView mAutoView;
#Override
public void onClick(View v) {
mAutoView = (AutoCompleteTextView) v;
mAutoView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.d("MainActivity", "<<<<onItemClicked");
int bracketPos = mAutoView.getText().toString().indexOf("(");
if (bracketPos > 0) {
mAutoView.setSelection(bracketPos + 1);
}
}
});
}
});
You can delete your other listeners.
Related
i create in a two way data binding spinner in Android, and added value into with a result of a REST GET.
I need now to add the first value of the spinner as an empty string that when it will be selected from the spinner, the value will be null.
In the fragment class i wrote this code:
//spinner
appCompatSpinner = binding.spinner;
spinnerAdapter = new SpinnerAdapter(getActivity(), viewModel.usersDetailsList );
appCompatSpinner.setAdapter(spinnerActorAdapter);
appCompatSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
viewModel.onSelected(position);
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
mAdapter.notifyDataSetChanged();
Can someone please help me to achieve that?
I dynamically inflate a view which contains spinner and edit text.how to understand which spinner listener is currently working.
count = 1;
buttonadd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
count++;
Spinner spin_securityType = (Spinner) MyItem[count].findViewById(R.id.spin_securityType);
EditText ed_amount = (EditText) MyItem[count].findViewById(R.id.ed_amount);
SpinnerLogoAdapter spinnerAdapter33 = new SpinnerLogoAdapter(Activity.this.getApplicationContext(),
securityTpeIcons, securityTpeitems);
spin_securityType.setAdapter(spinnerAdapter33);
MainItemLayout.addView(MyItem[count]);
spin_securityType.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView << ? > parent, View view, int position, long id) {
//how to know which spinner is selected ????????
}
#Override
public void onNothingSelected(AdapterView << ? > parent) {}
});
}
});
what i need is add a validation on one which validates all 5 items at a same time.I have tried setTag but it does not work.please help
I found the solution myself. I programatically added id for each spinner and access it inside the listener to know which spinner is selected.For that i added id to the spinner
spin_securityType.setId(id); ex:id=1
and access it inside spin_securityType.setOnItemSelectedListener()
spin_securityType.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView parent, View view, int position, long id) {
int Id=parent.getId();//shows id as 1
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
I'm trying to get an AutoCompleteTextView's ID after I clicked a value on the list. Tried looking up on google and stackoverflow, but the provided answers didn't work. Here's what I've got:
Created the view in my class declaration:
public class ActivityCadastrarCliente extends Activity implements OnClickListener, OnItemClickListener {
AutoCompleteTextView E_Nome_Cliente, E_CPF;
List<String> Nomes = new ArrayList<String>();
...
Associated the view to an XML element:
E_Nome_Cliente = (AutoCompleteTextView)findViewById(R.id.Nome_Cliente);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, Nomes.toArray(new String[0]));
E_Nome_Cliente.setAdapter(adapter);
E_Nome_Cliente.setOnItemClickListener(this);
and my onItemClick method is called normally as below:
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//switch (parent.getId()) {
//case R.id.Nome_Cliente:
...
//}
}
Does anybody know how I can access this view inside onItemClick? Tried several ways, but I only get exceptions:
//Class cast exception
AutoCompleteTextView input = (AutoCompleteTextView)view.getParent();
//Class cast exception
AutoCompleteTextView input = (AutoCompleteTextView)parent;
//Class cast exception
AutoCompleteTextView input = (AutoCompleteTextView)parent.getParent();
I need to identify which view was clicked, because I'm using 3 to 5 AutoCompleteTextView and based on the selected value I'll automatically fill in a bunch of other fields.
Have a look at the class AutoCompleteTextViewClickListener in this answer.
Change your setOnItemClickListener call in the following way:
E_Nome_Cliente.setOnItemClickListener(
new AutoCompleteTextViewClickListener(E_Nome_Cliente, this));
Now you can get the id by accessing the modified view parameter:
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//view had been modified by AutoCompleteTextViewClickListener
//to contain the original AutoCompleteTextView
switch (view.getId()) {
case R.id.Nome_Cliente:
//...
}
}
An easier way:
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Adapter adapter = parent.getAdapter();
if (adapter == autoCompleteTextView1.getAdapter()) {
// Do something
} else if (adapter == autoCompleteTextView2.getAdapter()) {
// Do something else
}
}
i am not sure what do you mean by view id? do you want to get the selected value?
if yes, then the below code will do it, otherwise please clarify more what do you need and why you want to access the view itself.
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//switch (parent.getId()) {
String selected = adapter.getItem(position);
//}
}
more on adapter methods are here
Use parent.findViewById(R.id.id_of_autocompleteTextView) on the parent of the AutoCompleteTextView.
I am using below code to setcolor of a selected item of a listview. The rule is only one should be colored. But with below code if I select 2 views both get colored. Can you please help me get all other views in the listview so that when I click on certain view all other views i set to different color and the selected view i set a different color(Green in this case).
Please let me know if any other solution?
lv = (ListView) view.findViewById(R.id.listf);
lv.setAdapter(text![enter image description here][1]Adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
TextView v = (TextView) view.findViewById(R.id.template_text);
view.setBackgroundColor(Color.GREEN);
}
});
I resolved the problem using the below:
I put a loop where only the selected list item is set in RED whereas all others were set in Green, in this way only only one list item will be colored on selected.
lv = (ListView) view.findViewById(R.id.listf);
lv.setAdapter(Adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
for (int i = 0; i < 3; i++)
{
if (position == i)
{
parent.getChildAt(i).setBackgroundColor(Color.RED);
}
else
{
parent.getChildAt(i).setBackgroundColor(getResources().getColor(R.color.Dark_Green);
}
}
TextView v = (TextView) view.findViewById(R.id.template_text);
view.setBackgroundColor(Color.GREEN);
}
});
As you told you are not able to change adapter code, you can prefer solution 2.
Solution 1: Create one variable int selectedPosition and method setSelected in your adapter class
int selectedPosition = -1;
public void setSelected(int position)
{
selectedPosition = position;
notifyDatasetChanged();
}
Edit getView() of the adapter class and include following code
if(selectedPosition==position)
{
templateTextView.setBackgroundColor(Color.GREEN);
}
else templateTextView.setBackgroundColor(Color.BLUE);// default textView color
Solution 2: keep reference of previously selected textView as well each time change the color of currently selected textview to green andd previous one to blue
TextView previousSelected = null;
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if(previousSelected!=null)
previousSelected.setBackgroundColor(Color.BLUE);
TextView v = (TextView) view.findViewById(R.id.template_text);
view.setBackgroundColor(Color.GREEN);
previousSelected = v;
}
});
I've tried this a few different ways and all the code does is print out the top value of the spinner.
final String [] equipment=new String[]{//items
}
ArrayAdapter<?> ad=new ArrayAdapter<Object>(this,android.R.layout.simple_spinner_item,equipment);
ad.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
Spinner spin=(Spinner)findViewById(R.id.spinneritem);
spin.setAdapter(ad);
int position = spin.getSelectedItemPosition();
final String equipmentitem = equipment[position].toString();
From what I can tell that should be able to take the value of the array that the user has selected, but no matter what I select in the list, it only select the first item, and ignores the actual selection.
You probably need to add a listener to the spinner.
spin.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parentView,
View selectedItemView, int position, long id) {
equipmentitem = equipment[position].toString();
}
#Override
public void onNothingSelected(AdapterView<?> parentView) {
}
});