I can populate more than 1 spinner in Android with multiple values. I want to display more than 1 value in spinner i.e In "0" position (spinner index) I want to set more than one value as per the user dynamically. When user select the first value that will set in 0 position and when user click the second value it will added to same 0 position without replacing it. So that two values can be visible and can be use.
Is it possible in android spinner? If yes any suggestion please ..
You can follow the
http://labs.makemachine.net/2010/03/android-multi-selection-dialogs/ or http://v4all123.blogspot.in/2013/09/spinner-with-multiple-selection-in.html. Let me know if any error?? check this, I think this is what you looking for http://codethis.wordpress.com/2012/06/17/a-spinner-control-for-android-with-multi-select-support/
In MultiSelectionSpinner Class
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.util.AttributeSet;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
public class MultiSelectionSpinner extends Spinner implements OnMultiChoiceClickListener {
String[] _items = null;
boolean[] mSelection = null;
ArrayAdapter<String> simple_adapter;
public MultiSelectionSpinner(Context context) {
super(context);
simple_adapter = new ArrayAdapter<String>(context,
android.R.layout.simple_spinner_item);
super.setAdapter(simple_adapter);
}
public MultiSelectionSpinner(Context context, AttributeSet attrs) {
super(context, attrs);
simple_adapter = new ArrayAdapter<String>(context,
android.R.layout.simple_spinner_item);
super.setAdapter(simple_adapter);
}
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
if (mSelection != null && which < mSelection.length) {
mSelection[which] = isChecked;
simple_adapter.clear();
simple_adapter.add(buildSelectedItemString());
} else {
throw new IllegalArgumentException(
"Argument 'which' is out of bounds.");
}
}
@Override
public boolean performClick() {
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setMultiChoiceItems(_items, mSelection, this);
builder.show();
return true;
}
@Override
public void setAdapter(SpinnerAdapter adapter) {
throw new RuntimeException(
"setAdapter is not supported by MultiSelectSpinner.");
}
public void setItems(String[] items) {
_items = items;
mSelection = new boolean[_items.length];
simple_adapter.clear();
simple_adapter.add(_items[0]);
Arrays.fill(mSelection, false);
}
public void setItems(List<String> items) {
_items = items.toArray(new String[items.size()]);
mSelection = new boolean[_items.length];
simple_adapter.clear();
simple_adapter.add(_items[0]);
Arrays.fill(mSelection, false);
}
public void setSelection(String[] selection) {
for (String cell : selection) {
for (int j = 0; j < _items.length; ++j) {
if (_items[j].equals(cell)) {
mSelection[j] = true;
}
}
}
}
public void setSelection(List<String> selection) {
for (int i = 0; i < mSelection.length; i++) {
mSelection[i] = false;
}
for (String sel : selection) {
for (int j = 0; j < _items.length; ++j) {
if (_items[j].equals(sel)) {
mSelection[j] = true;
}
}
}
simple_adapter.clear();
simple_adapter.add(buildSelectedItemString());
}
public void setSelection(int index) {
for (int i = 0; i < mSelection.length; i++) {
mSelection[i] = false;
}
if (index >= 0 && index < mSelection.length) {
mSelection[index] = true;
} else {
throw new IllegalArgumentException("Index " + index
+ " is out of bounds.");
}
simple_adapter.clear();
simple_adapter.add(buildSelectedItemString());
}
public void setSelection(int[] selectedIndicies) {
for (int i = 0; i < mSelection.length; i++) {
mSelection[i] = false;
}
for (int index : selectedIndicies) {
if (index >= 0 && index < mSelection.length) {
mSelection[index] = true;
} else {
throw new IllegalArgumentException("Index " + index
+ " is out of bounds.");
}
}
simple_adapter.clear();
simple_adapter.add(buildSelectedItemString());
}
public List<String> getSelectedStrings() {
List<String> selection = new LinkedList<String>();
for (int i = 0; i < _items.length; ++i) {
if (mSelection[i]) {
selection.add(_items[i]);
}
}
return selection;
}
public List<Integer> getSelectedIndicies() {
List<Integer> selection = new LinkedList<Integer>();
for (int i = 0; i < _items.length; ++i) {
if (mSelection[i]) {
selection.add(i);
}
}
return selection;
}
private String buildSelectedItemString() {
StringBuilder sb = new StringBuilder();
boolean foundOne = false;
for (int i = 0; i < _items.length; ++i) {
if (mSelection[i]) {
if (foundOne) {
sb.append(", ");
}
foundOne = true;
sb.append(_items[i]);
}
}
return sb.toString();
}
public String getSelectedItemsAsString() {
StringBuilder sb = new StringBuilder();
boolean foundOne = false;
for (int i = 0; i < _items.length; ++i) {
if (mSelection[i]) {
if (foundOne) {
sb.append(", ");
}
foundOne = true;
sb.append(_items[i]);
}
}
return sb.toString();
}
}
Blow is the solution :-
package com.kazi.createActivity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.util.AttributeSet;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import com.kazi.R;
import java.util.List;
public class MultiSpinner extends Spinner implements
OnMultiChoiceClickListener, DialogInterface.OnCancelListener {
private List<String> items;
private boolean[] selected;
private String defaultText;
private MultiSpinnerListener listener;
public MultiSpinner(Context context) {
super(context);
}
public MultiSpinner(Context arg0, AttributeSet arg1) {
super(arg0, arg1);
}
public MultiSpinner(Context arg0, AttributeSet arg1, int arg2) {
super(arg0, arg1, arg2);
}
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
if (isChecked)
selected[which] = true;
else
selected[which] = false;
}
@Override
public void onCancel(DialogInterface dialog) {
// refresh text on spinner
StringBuffer spinnerBuffer = new StringBuffer();
boolean someUnselected = false;
for (int i = 0; i < items.size(); i++) {
if (selected[i] == true) {
spinnerBuffer.append(items.get(i));
spinnerBuffer.append(", ");
} else {
someUnselected = true;
}
}
String spinnerText;
if (someUnselected) {
spinnerText = spinnerBuffer.toString();
if (spinnerText.length() > 2)
spinnerText = spinnerText.substring(0, spinnerText.length() - 2);
} else {
spinnerText = defaultText;
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),
R.layout.spinner_list_item,
new String[] { spinnerText });
setAdapter(adapter);
listener.onItemsSelected(selected);
}
@Override
public boolean performClick() {
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setMultiChoiceItems(
items.toArray(new CharSequence[items.size()]), selected, this);
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
builder.setOnCancelListener(this);
builder.show();
return true;
}
public void setItems(List<String> items, String[] allText,
MultiSpinnerListener listener) {
this.items = items;
this.listener = listener;
// all selected by default
selected = new boolean[items.size()];
for (int i = 0; i < selected.length; i++)
selected[i] = false;
// all text on the spinner
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),
R.layout.spinner_list_item, allText );
setAdapter(adapter);
}
public interface MultiSpinnerListener {
public void onItemsSelected(boolean[] selected);
}
}
I created this xml layout:-
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/spiner_item"
android:layout_width="match_parent"
android:layout_height="@dimen/spiner_height"
android:background="@drawable/rounded_edittext"
android:gravity="center_vertical"
android:paddingLeft="5dp"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@android:color/black" />
