自动完成文本视图不显示建议

Question

我已经实现了一个自动完成编辑文本，它确实显示建议，但我想实现不同的功能。

现在，我有国家

private static final String[] COUNTRIES = new String[] { 
    "Belgium", "France", "Italy", "Germany", "Spain" 
}; 

的字符串，我在我的适配器调用它。现在，当我开始键入任何一个国家的名字，我的编辑文本开始展示了我的建议，但

我想是：

可以说，我想在编辑文本写法国的10倍，所以我想我的自动完成编辑文本给我的建议，当我开始打字法国等等，

但我的编辑文本给我的建议只有我输入的第一个字。我怎么能做到这一点，就像我的编辑文本如何为我输入的每个文本提供建议？

Answer 1

在你的布局使用MultiAutoCompleteTextView，并执行这样的代码，在这里我使用commas

String[] colors = getResources().getStringArray(R.array.AndroidDesk); 

    adapter1 = new ArrayAdapter<String>(this,R.layout.suggestion_textview,colors); 

    //autoComplete = (AutoCompleteTextView) findViewById(R.id.autoComplete); 
    multiAutoComplete = (MultiAutoCompleteTextView) findViewById(R.id.editText1); 

    // set adapter for the auto complete fields 
// autoComplete.setAdapter(adapter); 
    multiAutoComplete.setAdapter(adapter1); 

    // specify the minimum type of characters before drop-down list is shown 
    //autoComplete.setThreshold(1); 
    multiAutoComplete.setThreshold(2); 
    // comma to separate the different colors 
    multiAutoComplete.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer()); 

Answer 2

使用MultiAutoCompleteTextView，而不是AutoCompleteTextView从

public class CountriesActivity extends Activity { 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.autocomplete_7); 

     ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, 
       android.R.layout.simple_dropdown_item_1line, COUNTRIES); 
     MultiAutoCompleteTextView textView = (MultiAutoCompleteTextView) findViewById(R.id.edit); 
     textView.setAdapter(adapter); 
     textView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer()); 
    } 

    private static final String[] COUNTRIES = new String[] { 
     "Belgium", "France", "Italy", "Germany", "Spain" 
    }; 
} 

来源分裂：http://developer.android.com/reference/android/widget/MultiAutoCompleteTextView.html

Answer 3

检查下面的代码，它会工作，就像你按空格键入一些东西，你会得到建议列表：

XML布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" > 

<MultiAutoCompleteTextView 
    android:id="@+id/macTvInput" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" /> 


</RelativeLayout> 

代码：

public class MainActivity extends Activity { 

private static final String[] COUNTRIES = new String[] { "Belgium", 
     "France", "Italy", "Germany", "Spain" }; 

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

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, 
      android.R.layout.simple_dropdown_item_1line, COUNTRIES); 
    MultiAutoCompleteTextView macTvInput = (MultiAutoCompleteTextView) findViewById(R.id.macTvInput); 
    macTvInput.setAdapter(adapter); 
    macTvInput.setTokenizer(new SpaceTokenizer()); 
} 

private class SpaceTokenizer implements Tokenizer { 

      private final char delimiter = ' '; 

    public int findTokenStart(CharSequence text, int cursor) { 
     int i = cursor; 

     while (i > 0 && text.charAt(i - 1) != delimiter) { 
      i--; 
     } 
     while (i < cursor && text.charAt(i) == delimiter) { 
      i++; 
     } 

     return i; 
    } 

    public int findTokenEnd(CharSequence text, int cursor) { 
     int i = cursor; 
     int len = text.length(); 

     while (i < len) { 
      if (text.charAt(i) == delimiter) { 
       return i; 
      } else { 
       i++; 
      } 
     } 

     return len; 
    } 

    public CharSequence terminateToken(CharSequence text) { 
     int i = text.length(); 
     while (i > 0 && text.charAt(i - 1) == delimiter) { 
      i--; 
     } 

     return text; 

    } 

} 
}