how to get spinner value position on button click [duplicate] - android

I'm trying to get the position (number) of the spinner when selected to use it in another Activity that will display a different map each time depending on the item selected. when I run the application it crashes. this is the first Activity code:
public class TestProjectActivity extends Activity {
public Spinner spinner1;
public Integer number;
private Button valideButton;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MySpinner();
valide_button();
}
public void MySpinner() {
final Spinner spinner1 = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, R.array.num, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(adapter);
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parentView,
View selectedItemView, int position, long id) {
// Object item = parentView.getItemAtPosition(position);
TestProjectActivity.this.number = spinner1
.getSelectedItemPosition() + 1;
}
public void onNothingSelected(AdapterView<?> arg0) {// do nothing
}
});
}
public void valide_button() {
valideButton = (Button) findViewById(R.id.valide_button);
valideButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(TestProjectActivity.this,
MetroMapActivity.class);
startActivity(intent);
}
});
}
}

The way to get the selection of the spinner is:
spinner1.getSelectedItemPosition();
Documentation reference:
http://developer.android.com/reference/android/widget/AdapterView.html#getSelectedItemPosition()
However, in your code, the one place you are referencing it is within your setOnItemSelectedListener(). It is not necessary to poll the spinner, because the onItemSelected method gets passed the position as the "position" variable.
So you could change that line to:
TestProjectActivity.this.number = position + 1;
If that does not fix the problem, please post the error message generated when your app crashes.

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bt = findViewById(R.id.button);
spinner = findViewById(R.id.sp_item);
setInfo();
spinnerAdapter = new SpinnerAdapter(this, arrayList);
spinner.setAdapter(spinnerAdapter);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
//first, we have to retrieve the item position as a string
// then, we can change string value into integer
String item_position = String.valueOf(position);
int positonInt = Integer.valueOf(item_position);
Toast.makeText(MainActivity.this, "value is "+ positonInt, Toast.LENGTH_SHORT).show();
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
note: the position of items is counted from 0.

final int[] positions=new int[2];
Spinner sp=findViewByID(R.id.spinner);
sp.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
Toast.makeText( arg2....);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});

if (position ==0) {
if (rYes.isChecked()) {
Toast.makeText(SportActivity.this, "yes ur answer is right", Toast.LENGTH_LONG).show();
} else if (rNo.isChecked()) {
Toast.makeText(SportActivity.this, "no.ur answer is wrong", Toast.LENGTH_LONG).show();
}
}
This code is supposed to select both check boxes.
Is there a problem with it?

Related

Spinner use IF else

i want to take the value in spinner and user press the ok Button and then start new activity from against the value of spinner. The string array is just like that.
public class Menu extends Activity implements View.OnClickListener {
private String[] array_spinner = {"Select Here", "Honda", "Toyota", "Mitibushi"};
private String[] array_spinner01 = {"Select Here", "Civic", "Gli", "Lancer"};
// //private String[] array_spinner02={"1999","2000","2005"};
// Spinner s,s1,s2;
// Button ok;
//#Override
// protected void onCreate(Bundle savedInstanceState) {
// super.onCreate(savedInstanceState);
Spinner s, s1;
Button ok;
Object _globalString;
Object _globalString2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
s = (Spinner) findViewById(R.id.spinner);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_dropdown_item, array_spinner);
s.setAdapter(adapter);
s1 = (Spinner) findViewById(R.id.spinner01);
ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_dropdown_item, array_spinner01);
s1.setAdapter(adapter1);
//
// s2=(Spinner)findViewById(R.id.spinner02);
// ArrayAdapter<String> adapter2=new ArrayAdapter<String>(getApplicationContext(),android.R.layout.simple_spinner_dropdown_item,array_spinner02);
// s2.setAdapter(adapter2);
ok = (Button) findViewById(R.id.btn_ok);
ok.setOnClickListener(this);
s.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
_globalString = parent.getItemAtPosition(position);
}
//#Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
});
s1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
_globalString2 = parent.getItemAtPosition(position);
}
// #Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
});
}
#Override
public void onClick(View v) {
if (v.getId() == R.id.btn_ok) {
if (_globalString.equals("Honda") || _globalString2.equals("Civic")) {
startActivity(new Intent(getApplicationContext(), Civic.class));
} else if (_globalString.equals("Toyota") || _globalString2.equals("Gli")) {
startActivity(new Intent(getApplicationContext(), Toyota.class));
}
}
}
}
please tell me where is my mistake in this code because i stucked and i cant find it
There are many ways to do this, but I would recommend to follow these solution :
First :
save the value of the spinner in a global string variable by declaring a string at the top of your Activity like below :
public class Menu extends Activity implements View.OnClickListener {
Spinner s1, s2;
Button acceptbutton;
String _globalString ;
String _globalString2 ;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Your code ..
Now you need to save the value of your selected field into that string, everytime your spinner changes value :
s1.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
_globalString = parent.getItemAtPosition(position);
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
});
s.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
_globalString2 = parent.getItemAtPosition(position);
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
});
Now you can switch activity based on spinner value :
#Override
public void onClick(View v) {
if (v.getId() == R.id.btn_ok) {
if (_globalString.equals("Honda") || _globalString2.equals("Civic")) {
startActivity(new Intent(getApplicationContext(), Civic.class));
} else if (_globalString.equals("Toyota") || _globalString2.equals("Gli")) {
startActivity(new Intent(getApplicationContext(), Toyota.class));
}
}
}

How can I pick only once a value from spinner in android

I have a spinner with ten numbers 0-10 and I if someone picks a number I want him not to be able to pick the same value again. So inside ItemSelected I do the following with no result
#Override
public void onItemSelected(AdapterView<?> adapter, View v, int position, long id) {
// On selecting a spinner item
if (position > 0 && position!=tempPosition)
{
TeamSpinnerNumber = adapter.getItemAtPosition(position).toString();
tempPosition = position
}
}
Check this i worked out for you may it help you.
public class MainActivity extends AppCompatActivity {
ArrayList<String> mStrings;
ArrayAdapter<String> mStringArrayAdapter;
Spinner mSpinner;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSpinner = (Spinner) findViewById(R.id.spinner);
mStrings = new ArrayList<String>() {{
add("None");
add("one");
add("two");
add("three");
}};
mStringArrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mStrings);
mSpinner.setAdapter(mStringArrayAdapter);
mSpinner.setSelection(0);
mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String string = parent.getItemAtPosition(position).toString();
if (!string.equals("None"))
removeThisFromSpinner(string);
mSpinner.setSelection(0);
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
private void removeThisFromSpinner(String s) {
mStrings.remove(s);
mStringArrayAdapter.notifyDataSetChanged();
}
}
try this, hope it helps :
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Log.i(TAG, "onItemSelected: "+position);
//checking the position of the selected spinner item, if the previous position is not the same then do something here
if(position>0 && position!=myPosition){
}
myPosition = position;
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
and don't forget to add global variable to the class :
int myPosition = 999; // the non existed position make it global variable

change imagebutton from spinner

Im using a spinner and i was wondering how can you get an item from the spinner to appear in an image button the images are using string as value.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_up);
spinnerListener();
St = (Spinner) findViewById(R.id.Namess);
imageButton01 = (ImageButton) findViewById(R.id.ImageButton1);
}
private void spinnerListener() {
ArrayList<Name> players = List_content.ENTRY_LIST_PLAYERS;
final ArrayAdapter<String> adapter=new ArrayAdapter<String>(Line_up.this, android.R.layout.simple_spinner_item);
{for (Name p : players){adapter.add(p.f_name);}};
playerss.setAdapter(adapter);
playerss.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> av, View v,
int position, long itemId) {
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
});
}
public void goalkeeper(View v){
st.performClick();
}
OK. Here's the trick:
When ImageButton is clicked, you just need to call performClick() on the spinner object.
int[] pictureIds = {
R.drawable.picture1,
//add as many picture IDs as you want
R.drawable.picture2
}
imageButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
spinner.performClick();
}
});
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long arg3) {
imageButton.setImageResource(pictureIds[position]);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
Don't forget to set spinner adapter just as you did correctly in your question.

Android: Not getting values of spinner into edittext

I have dailog with a EditText and a Spinner, i am implementing as below
spinner1 = (Spinner) dialog.findViewById(R.id.quesspinner);
ArrayAdapter<CharSequence> arrayadapter = ArrayAdapter.createFromResource(activity, R.array.fbquestion,R.layout.textview);
spinner1.setAdapter(arrayadapter);
logo.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
spinner1.setVisibility(View.GONE);
spinner1.performClick();
}
});
Now i am unable to read the value of Spinner, i want the text in the Spinner to be displayed in my EditText . code seems to be fine for me but itz not working.Any help is appreciated
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent,
View view, int pos, long id) {
int Text = parent.getSelectedItemPosition();
edittext.setText(Text);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
Use spinner.getSelectedItem() instead of parent.getSelectedItem()
Change your code to like this
To show content in EditText before changing the spinner then do like this
spinner1.setAdapter(arrayadapter);
edittext.setText(spinner1.getSelectedItem().toString());
.
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent,
View view, int pos, long id) {
String Text = spinner1.getSelectedItem().toString();
edittext.setText(Text);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});

Get the position of a spinner in Android

I'm trying to get the position (number) of the spinner when selected to use it in another Activity that will display a different map each time depending on the item selected. when I run the application it crashes. this is the first Activity code:
public class TestProjectActivity extends Activity {
public Spinner spinner1;
public Integer number;
private Button valideButton;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MySpinner();
valide_button();
}
public void MySpinner() {
final Spinner spinner1 = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, R.array.num, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(adapter);
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parentView,
View selectedItemView, int position, long id) {
// Object item = parentView.getItemAtPosition(position);
TestProjectActivity.this.number = spinner1
.getSelectedItemPosition() + 1;
}
public void onNothingSelected(AdapterView<?> arg0) {// do nothing
}
});
}
public void valide_button() {
valideButton = (Button) findViewById(R.id.valide_button);
valideButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(TestProjectActivity.this,
MetroMapActivity.class);
startActivity(intent);
}
});
}
}
The way to get the selection of the spinner is:
spinner1.getSelectedItemPosition();
Documentation reference:
http://developer.android.com/reference/android/widget/AdapterView.html#getSelectedItemPosition()
However, in your code, the one place you are referencing it is within your setOnItemSelectedListener(). It is not necessary to poll the spinner, because the onItemSelected method gets passed the position as the "position" variable.
So you could change that line to:
TestProjectActivity.this.number = position + 1;
If that does not fix the problem, please post the error message generated when your app crashes.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bt = findViewById(R.id.button);
spinner = findViewById(R.id.sp_item);
setInfo();
spinnerAdapter = new SpinnerAdapter(this, arrayList);
spinner.setAdapter(spinnerAdapter);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
//first, we have to retrieve the item position as a string
// then, we can change string value into integer
String item_position = String.valueOf(position);
int positonInt = Integer.valueOf(item_position);
Toast.makeText(MainActivity.this, "value is "+ positonInt, Toast.LENGTH_SHORT).show();
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
note: the position of items is counted from 0.
final int[] positions=new int[2];
Spinner sp=findViewByID(R.id.spinner);
sp.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
Toast.makeText( arg2....);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
if (position ==0) {
if (rYes.isChecked()) {
Toast.makeText(SportActivity.this, "yes ur answer is right", Toast.LENGTH_LONG).show();
} else if (rNo.isChecked()) {
Toast.makeText(SportActivity.this, "no.ur answer is wrong", Toast.LENGTH_LONG).show();
}
}
This code is supposed to select both check boxes.
Is there a problem with it?

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