스피너에 문자열을 설정하는 방법은 무엇입니까?

Question

문자열 str = countries.get (국가);

mSpinnerCountry.setSelection (Integer.parseInt (str));

mSpinnerCountry에는 항목이 있지만 업데이트를 위해 회 전자에 특정 항목을 설정하고 싶습니다.

Answer 1

회 전자 목록에서 항목 색인을 가져옴으로써 이와 같이하십시오.

spinner.setSelection(countries.indexOf(str)); 

전체 Exampple :

public class SpinnerModel { 

     private String CompanyName=""; 
     private String Image=""; 
     private String Url=""; 

     /*********** Set Methods ******************/ 
     public void setCompanyName(String CompanyName) 
     { 
      this.CompanyName = CompanyName; 
     } 

     public void setImage(String Image) 
     { 
      this.Image = Image; 
     } 

     public void setUrl(String Url) 
     { 
      this.Url = Url; 
     } 

     /*********** Get Methods ****************/ 
     public String getCompanyName() 
     { 
      return this.CompanyName; 
     } 

     public String getImage() 
     { 
      return this.Image; 
     } 

     public String getUrl() 
     { 
      return this.Url; 
     } 
    } 

activity_custom_spinner :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:orientation="vertical" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent"> 

     <TextView 
      android:paddingTop="20dip" 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content"/> 

     <Spinner 
      android:id="@+id/spinner" 
      android:drawSelectorOnTop="true" 
      android:prompt="@string/defaultText" 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 

      /> 

     <TextView 
      android:paddingTop="20dip" 
      android:paddingLeft="20dip" 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:id="@+id/output" 
      /> 

    </LinearLayout> 

전체 코드 :

public class CustomSpinner extends Activity { 

    /************** Intialize Variables *************/ 
    public ArrayList<SpinnerModel> CustomListViewValuesArr = new ArrayList<SpinnerModel>(); 
    TextView output = null; 
    CustomAdapter adapter; 
    CustomSpinner activity = null; 

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

     activity = this; 

     Spinner SpinnerExample = (Spinner)findViewById(R.id.spinner); 
     output     = (TextView)findViewById(R.id.output); 

     // Set data in arraylist 
     setListData(); 

     // Resources passed to adapter to get image 
     Resources res = getResources(); 

     // Create custom adapter object (see below CustomAdapter.java) 
     adapter = new CustomAdapter(activity, R.layout.spinner_rows, CustomListViewValuesArr,res); 

     // Set adapter to spinner 
     SpinnerExample.setAdapter(adapter); 

     // Listener called when spinner item selected 
     SpinnerExample.setOnItemSelectedListener(new OnItemSelectedListener() { 
      @Override 
      public void onItemSelected(AdapterView<?> parentView, View v, int position, long id) { 
       // your code here 

       // Get selected row data to show on screen 
       String Company = ((TextView) v.findViewById(R.id.company)).getText().toString(); 
       String CompanyUrl = ((TextView) v.findViewById(R.id.sub)).getText().toString(); 

       String OutputMsg = "Selected Company : \n\n"+Company+"\n"+CompanyUrl; 
       output.setText(OutputMsg); 

       Toast.makeText(
         getApplicationContext(),OutputMsg, Toast.LENGTH_LONG).show(); 
      } 

      @Override 
      public void onNothingSelected(AdapterView<?> parentView) { 
       // your code here 
      } 

     }); 
    } 

    /****** Function to set data in ArrayList *************/ 
    public void setListData() 
    { 

     // Now i have taken static values by loop. 
     // For further inhancement we can take data by webservice/json/xml; 

     for (int i = 0; i < 11; i++) { 

      final SpinnerModel sched = new SpinnerModel(); 

       /******* Firstly take data in model object ******/ 
       sched.setCompanyName("Company "+i); 
       sched.setImage("image"+i); 
       sched.setUrl("http:\\www."+i+".com"); 

      /******** Take Model Object in ArrayList **********/ 
      CustomListViewValuesArr.add(sched); 
     } 

    } 

    } 

,451,515,

CustomAdapter :

/***** Adapter class extends with ArrayAdapter ******/ 
public class CustomAdapter extends ArrayAdapter<String>{ 
      
    private Activity activity; 
    private ArrayList data; 
    public Resources res; 
    SpinnerModel tempValues=null; 
    LayoutInflater inflater; 
      
    /*************  CustomAdapter Constructor *****************/ 
    public CustomAdapter(
                          CustomSpinner activitySpinner, 
                          int textViewResourceId,   
                          ArrayList objects, 
                          Resources resLocal 
                         ) 
     { 
        super(activitySpinner, textViewResourceId, objects); 
          
        /********** Take passed values **********/ 
        activity = activitySpinner; 
        data     = objects; 
        res      = resLocal; 
     
        /***********  Layout inflator to call external xml layout() **********************/ 
        inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
          
      } 
  
    @Override 
    public View getDropDownView(int position, View convertView,ViewGroup parent) { 
        return getCustomView(position, convertView, parent); 
    } 
  
    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
        return getCustomView(position, convertView, parent); 
    } 
  
    // This funtion called for each row (Called data.size() times) 
    public View getCustomView(int position, View convertView, ViewGroup parent) { 
  
        /********** Inflate spinner_rows.xml file for each row (Defined below) ************/ 
        View row = inflater.inflate(R.layout.spinner_rows, parent, false); 
          
        /***** Get each Model object from Arraylist ********/ 
        tempValues = null; 
        tempValues = (SpinnerModel) data.get(position); 
          
        TextView label        = (TextView)row.findViewById(R.id.company); 
        TextView sub          = (TextView)row.findViewById(R.id.sub); 
        ImageView companyLogo = (ImageView)row.findViewById(R.id.image); 
          
        if(position==0){ 
              
            // Default selected Spinner item 
            label.setText("Please select company"); 
            sub.setText(""); 
        } 
        else 
        { 
            // Set values for spinner each row 
            label.setText(tempValues.getCompanyName()); 
            sub.setText(tempValues.getUrl()); 
            companyLogo.setImageResource(res.getIdentifier 
                                         ("com.androidexample.customspinner:drawable/" 
                                          + tempValues.getImage(),null,null)); 
              
        }   
  
        return row; 
      } 
 } 

spinner_rows.XML :

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:orientation="vertical" 
android:padding="3dip" 
> 
    <ImageView 
     android:id="@+id/image" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     /> 
    <TextView 
     android:layout_toRightOf="@+id/image" 
     android:padding="3dip" 
     android:layout_marginTop="2dip" 
     android:textColor="@drawable/red" 
     android:textStyle="bold" 
     android:id="@+id/company" 
     android:layout_marginLeft="5dip" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"/> 
    <TextView 
     android:layout_toRightOf="@+id/image" 
     android:padding="2dip" 
     android:textColor="@drawable/darkgrey" 
     android:layout_marginLeft="5dip" 
     android:id="@+id/sub" 
     android:layout_below="@+id/company" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"/> 
</RelativeLayout> 

Explanation demo