如何在AlertDialog中設置ArrayList <HashMap <String，String >>？

Question

如何在AlertDialog中使用HashMap設置ArrayList？

// Creating and Building the Dialog 
AlertDialog dialogBox = null; 
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); 
builder.setTitle("Select Item:"); 
builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialog, int item) { 
      switch(item){ 
       case 0: 
         // Your code when first option selected 
         break;   
      } 
      dialogBox.dismiss();  
     } 
}); 
dialogBox = builder.create(); 
dialogBox.show(); 

我希望有人能幫助我。先謝謝你。

Answer 1

試試這種方式，希望這會幫助你解決你的問題。

ArrayList<HashMap<String,String>> listMap = new ArrayList<HashMap<String, String>>(); 
HashMap<String,String> map1 =new HashMap<String, String>(); 
map1.put("title","Amdroid1"); 
HashMap<String,String> map2 =new HashMap<String, String>(); 
map2.put("title","Amdroid2"); 
HashMap<String,String> map3 =new HashMap<String, String>(); 
map3.put("title","Amdroid3"); 
HashMap<String,String> map4 =new HashMap<String, String>(); 
map4.put("title","Amdroid4"); 
HashMap<String,String> map5 =new HashMap<String, String>(); 
map5.put("title","Amdroid5"); 

listMap.add(map1); 
listMap.add(map2); 
listMap.add(map3); 
listMap.add(map4); 
listMap.add(map5); 

ArrayList<String> listString = new ArrayList<String>(); 
for(HashMap<String,String> row : listMap){ 
    listString.add(row.get("title")); 
} 

String[] array = listString.toArray(new String[listString.size()]); 
System.out.print("Lenght "+array.length);