Android中沒有AlertDialog的多選旋轉器

Question

我想和這個鏈接相同https://www.gorecess.com/第一個微調。在複選框中的多選擇微調控制器。在下拉菜單中顯示微調控制器。任何人都知道答案...

Answer 1

我有一些鏈接，您可以參考一下使該類型的視圖

關注該鏈接

Multi-Select Drop Down List in Android

Spinner with multiple selection in Android

How to Customize Spinner in Android

這可能會幫助你

Answer 2

  <com.extra.MultiSelectionSpinner 
       android:id="@+id/input1" 
       android:layout_width="fill_parent" 
       android:layout_height="wrap_content" 
       android:layout_margin="2dp" /> 

     MultiSelectionSpinner spinner=(MultiSelectionSpinner)findViewById(R.id.input1); 

     List<String> list = new ArrayList<String>(); 
      list.add("List1"); 
      list.add("List2"); 
      spinner.setItems(list); 

欲瞭解更多信息，請點擊here

Answer 3

多選擇微調：

1 - 創建自己的XML格式的微調，這樣

<Spinner 
    android:id="@+id/mySpinner" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_alignParentRight="true" 
    android:layout_marginTop="1dp"/> 

2 - 創建微調定製dapter這樣的：

public class AdapterTagSpinnerItem extends ArrayAdapter<TagListSimpleSearch> 
{ 
    private LayoutInflater mInflater; 
    private List<TagListSimpleSearch> listState; 
    public Spinner mySpinner = null; 

    public AdapterTagSpinnerItem(Context context, int resource, List<TagListSimpleSearch> objects, Spinner mySpinner) 
    { 
     super(context, resource, objects); 
     this.listState = objects; 
     this.mySpinner = mySpinner; 
     mInflater = LayoutInflater.from(context); 
    } 

    @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); 
    } 

    public View getCustomView(final int position, View convertView, ViewGroup parent) 
    { 
     String text = ""; 
     final ViewHolder holder; 
     if (convertView == null) 
     { 
      holder = new ViewHolder(); 
      mInflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = mInflater.inflate(R.layout.spinner_item, null, false); 
      holder.mTextView = convertView.findViewById(R.id.tvSpinnerItem); 
      convertView.setTag(holder); 
     } 
     else 
     { 
      holder = (ViewHolder) convertView.getTag(); 
     } 
     /** 
     * check position , if position is zero we put space on top of list of spinner 
     */ 
     if ((position == 0)) 
      text = oneSpace; 
     /** 
     * check position , if position is one we put cross mark before text to show that position used to be for clear all selected items on spinner 
     */ 
     else if ((position == 1)) 
      text = " " + String.valueOf((char) crossMarkAroundBox) + " " + listState.get(position).getTagText(); 
     /** 
     * check position , if position is two we put check mark before text to show that position used to be for select all items on spinner 
     */   
     else if ((position == 2)) 
      text = " " + String.valueOf((char) tikMarkAroundBox) + " " + listState.get(position).getTagText(); 
     /** 
     * check position , if position is bigger than two we have to check that position is selected before or not and put check mark or dash before text 
     */   
     else 
     { 
      if (listState.get(position).isSelected()) 
      { 
       text = " " + String.valueOf((char) tikMark) + " " + listState.get(position).getTagText(); 
      } 
      else 
      { 
       text = " " + String.valueOf(dash) + " " + listState.get(position).getTagText(); 
      } 
     } 
     holder.mTextView.setText(text); 
     holder.mTextView.setTag(position); 
     holder.mTextView.setOnClickListener(new View.OnClickListener() 
     { 
      @Override 
      public void onClick(View v) 
      { 
       /** 
       * if you want open spinner after click on text for first time we have to open spinner programmatically 
       */ 
       mySpinner.performClick(); 
       int getPosition = (Integer) v.getTag(); 
       listState.get(getPosition).setSelected(!listState.get(getPosition).isSelected()); 
       notifyDataSetChanged(); 

       /** 
       * if clicked position is one 
       * that means you want clear all select item in list 
       */    
       if (getPosition == 1) 
       { 
        clearList(); 
       } 
       /** 
       * if clicked position is two 
       * that means you want select all item in list 
       */ 
       else if (getPosition == 2) 
       { 
        fillList(); 
       } 
      } 
     }); 
     return convertView; 
    } 


    /** 
    * clear all items in list 
    */ 
    public void clearList() 
    { 
     for (TagListSimpleSearch items : listState) 
     { 
      items.setSelected(false); 
     } 
     notifyDataSetChanged(); 
    } 

    /** 
    * select all items in list 
    */ 
    public void fillList() 
    { 
     for (TagListSimpleSearch items : listState) 
     { 
      items.setSelected(true); 
     } 
     notifyDataSetChanged(); 
    } 

    /** 
    * view holder 
    */ 
    private class ViewHolder 
    { 
     private TextView mTextView; 
    } 
} 

3-現在你必須爲適配器

public class TagListSimpleSearch { 

    private String TagId; 
    private String TagText; 
    private boolean selected; 

    public String getTagId() { 
     return TagId; 
    } 

    public void setTagId(String TagId) { 
     this.TagId = TagId; 
    } 

    public String getTagText() { 
     return TagText; 
    } 

    public void setTagText(String tagText) { 
     TagText = tagText; 
    } 

    public boolean isSelected() 
    { 
     return selected; 
    } 

    public void setSelected(boolean selected) 
    { 
     this.selected = selected; 
    } 
} 

4填充創建對象Spinner適配器在您的活動中

public static String oneSpace =" "; 
public static int tikMark =0X2714; 
public static int crossMark =0X2715; 
public static int tikMarkAroundBox =0X2611; 
public static int crossMarkAroundBox =0X274E; 
public static String dash ="-"; 
private Spinner mySpinner; 

mySpinner= (Spinner) findViewById(R.id.mySpinner); 
List<TagListSimpleSearch> tagsNames = new ArrayList<>(); 
TagListSimpleSearch tagSpecific=new TagListSimpleSearch(); 
tagSpecific.setTagId("0"); 
tagSpecific.setTagText(oneSpace); 
tagsNames.add(tagSpecific); 

tagSpecific=new TagListSimpleSearch(); 
tagSpecific.setTagId("1"); 
tagSpecific.setTagText("select All Items"); 
tagsNames.add(tagSpecific); 

tagSpecific=new TagListSimpleSearch(); 
tagSpecific.setTagId("2"); 
tagSpecific.setTagText("remove All Items"); 
tagsNames.add(tagSpecific); 

tagSpecific=new TagListSimpleSearch(); 
tagSpecific.setTagId("0"); 
tagSpecific.setTagText("Item 0"); 
tagsNames.add(tagSpecific); 

tagSpecific=new TagListSimpleSearch(); 
tagSpecific.setTagId("1"); 
tagSpecific.setTagText("Item 1"); 
tagsNames.add(tagSpecific); 

tagSpecific=new TagListSimpleSearch(); 
tagSpecific.setTagId("2"); 
tagSpecific.setTagText("Item 2"); 
tagsNames.add(tagSpecific); 

tagSpecific=new TagListSimpleSearch(); 
tagSpecific.setTagId("3"); 
tagSpecific.setTagText("Item 3"); 
tagsNames.add(tagSpecific); 

final AdapterTagSpinnerItem adapterTagSpinnerItem = new AdapterTagSpinnerItem(this, 0, tagsNames,mySpinner); 
mySpinner.setAdapter(adapterTagSpinnerItem);