Android:AutoCompleteTextView

Question

我是机器人的初学者。当我试图将SQLite数据库中的值填充到AutoCompleteTextView时，我遇到了问题。通过下面的函数getAllFnames()*shown，我从数据库获得了一个字符串数组的值。但是AutoCompleteTextView并没有在run time..anybody上给出任何建议来帮助me.....codes获得below..please check..thank .(Log显示了一些过滤问题！)

 public String[] getAllFnames() {

     database=open();
     Fname=new String[1000];
     int i=0;
Cursor cursor = database.query(DbCreation.PATIENT_TABLE,Columns, null, null, null, null, null);
          cursor.moveToFirst();
          while (!cursor.isAfterLast()) {
          Fname[i]=cursor.getString(1).toString();
          Log.v("DataBaseValues...", Fname[i]);
          cursor.moveToNext();
          i++;
        }

        // Make sure to close the cursor
        cursor.close();
        return Fname;
}

在文本视图侧

      Fname=ss.getAllFnames();//here Fname is a string array
             //"ss" is the object of class where method getAllFname()  is placed.
ArrayAdapter<String> fnameAdapter=new ArrayAdapter<String>(this,R.layout.list,Fname);

     fnameSearch.setThreshold(1);//fnameSearch is the AutoCompleteTextView

     fnameSearch.setAdapter(fnameAdapter);

     fnameSearch.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
}

Answer 1

试试这段代码。使用数据数组代替月份数组。而是使用数组来代替大小为1000的数组。更有效率。

公共类自动完成扩展活动{

 static final String[] Months = new String[]{
    "January","February","March","April","May","June","July","August",
    "September","October","November","December"
    };

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.autocomplete);

    ArrayAdapter<String> monthArray = new ArrayAdapter<String>(this,
            android.R.layout.simple_dropdown_item_1line, Months);


    final AutoCompleteTextView textView = (AutoCompleteTextView)findViewById(R.id.testAutoComplete);
            textView.setAdapter(monthArray);

   }

}

Answer 2

你用这个

ArrayAdapter<String> fnameAdapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_dropdown_item_1line, Fname);

尝尝这个。谢谢。

Answer 3

我在这里看到的唯一问题是(假设您从DB获得值)。

ArrayAdapter<String> fnameAdapter=new ArrayAdapter<String>(this,R.layout.list,Fname);

代之以

myAutoComplete.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, Fname));