Select item from spinner to show edittext

问题

I am trying to show an EditText when a certain Item from a Spinner is selected. So far I have created the spinner and the EditText but I don't really know what my next step is. I don't want to display the selection in the EditText, I just want to display the EditText field.

 @Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final EditText editText = (EditText) findViewById(R.id.edit_text_box);
    editText.getText().toString();




}


public void addItemsOnSpinner()
{
    spinner1 = (Spinner) findViewById(R.id.spinner);
    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource
    (this, R.array.spinner_item, android.R.layout.simple_spinner_item);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spinner1.setAdapter (adapter);

}

public void onItemSelected(AdapterView<?> spinner1, View view,int pos, long id)
{

        editText.setText(spinner1.getSelectedItem());

}

This is also what I have in my string array + wish to only display the edittext box when item2 is selected

<string-array name="spinner_item">
    <item>Item 1</item>
    <item value="Item2">Item 2</item>
    <item>Item 3</item>
    <item>Item 4</item>
</string-array>

回答1:

You should set visibility of editText to invisible or gone in XML, depands on what suits your needs better. then you can use following to make it appear :

public void onItemSelected(AdapterView<?> spinner1, View view,int pos, long id)
{
 yourEditText.setVisibility(View.VISIBLE);
}

回答2:

    spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {

        public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
                long arg3) {
            int x = spinner1.getSelectedItemPosition();
            valSel = items[x];
    }
String spinner1val = spin1.getText().toString();         //extract value of text from spinner

EditText text = (EditText) findViewById(R.id.EditText1);  //get id of EditText box
text.setText(spinner1val);

Alternatively, if you want to check the value of item selected in Spinner, the 'valsel' contains the value. Just Toast the valsel.

回答3:

Get the selected values from the spinner,

String anyvariable=String.valueOf(spin.getSelectedItem());

Now you can show this String value in the edit text,

EditText text = (EditText) findViewById(R.id.your_text);
text.setText(anyvariable);

回答4:

        @Override
        public void onItemSelected(AdapterView<?> month, View arg1,int arg2, long arg3) {
            // TODO Auto-generated method stub
            selectedMonth=  month.getItemAtPosition(arg2).toString();
            Log.d("Tag",""+selectedMonth);
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub
            //selected_item=    arg0.getChildAt(1).toString();

        }
        });

        selected_item contains the item ,so just set it to editView like
         editView.setText(selected_item)    

回答5:

You have to set text on edittext onItemSelected . First do change as per MKJParekh Suggest.

public void onItemSelected(AdapterView<?> spinner1, View view,int pos, long id)
{
   yourEditText.setText(spinner1.getSelectedItem())
}

回答6:

1. EditText height1, weight1, height, weight; Spinner height_spinner, weight_spinner; String heightInputString, weightInputString; Button calculatebmi;

   @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_bmi);

   // set your class members as they start out null.
   // do this for all of them 
   height1 = (EditText) findViewById(R.id.idofheight1inxml);
   height_spinner = (Spinner) findViewById(R.id.idofheightspinnerinxml); 
   ....
   
       // Show the Up button in the action bar.
   setupActionBar();
   setupSpinners(); }
   

   void setupSpinners(){ height_spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView parent, View view, int position, long id) { //I.E. if in the height spinner CM is selected I would like to hide the second height edittext field. // I'm not sure if this is meant to be "height1" or "height" if (position == 0){ height.setVisibility(View.GONE); } else { height.setVisibility(View.VISIBLE); } }

       @Override
       public void onNothingSelected(AdapterView<?> parent) {
   
       }
   });
   
   // if you want to add similar logic for weight spinner, do that with this : 
   weight_spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
       @Override
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
           // put your code here for weight spinner
       }
   
       @Override
       public void onNothingSelected(AdapterView<?> parent) {
   
       }
   }); }
   

来源：https://stackoverflow.com/questions/12317093/select-item-from-spinner-to-show-edittext