AutoCompleteTextView下拉列表中的项目不可见。如何改变颜色..？

Question

我制作了一个AutoCompletetextView。 AutoCompleteTextView下拉列表中的项目不可见。如何更改这些项目的颜色。

它的外观如下： -

Answer 1

要控制在自动完成视图中显示项目的方式，必须在适配器中设置textViewResourceId。您可以使用ArrayAdapter并将android.R.layout.simple_dropdown_item_1line作为textViewResourceId，如下所示。

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line, yourList);
AutoCompleteTextView autocompleteView = (AutoCompleteTextView) findViewById(R.id.autocomplete_box);
autocompleteView.setAdapter(adapter);

OR

如果您想为显示的项目创建自己的样式，请创建一个以TextView为根元素的XML（请将其命名为my_custom_dropdown.xml，带有黑色文本和白色背景）< / p>

<?xml version="1.0" encoding="utf-8"?>
<TextView 
    xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" 
    android:textSize="20sp" 
    android:padding="5sp"
    android:textColor="@color/black"
    android:background="@color/white"/>

然后参考适配器中的xml，如下所示 -

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.my_custom_dropdown, yourList);

Answer 2

只是要指出，使用android.R.layout.simple_dropdown_item_1line它会给你上面遇到的同样问题。因此，您最好只在TextView文件中创建自己的.xml。

Answer 3

如果您将代码从"android.R.layout.simple_list_item_1"更改为"android.R.layout.simple_dropdown_item_1line"

，

您应该尝试在 setContentView

之前编写此代码

setTheme(android.R.style.Theme);

它对我有用：）

Answer 4

只需使用"android.R.layout.simple_list_item_1"代替"android.R.layout.simple_dropdown_item_1line" .....你的问题就会解决......：）

Answer 5

我创建了一个示例项目：AutoCompleteTextViewAdapter(Github Repo)

您需要实现以下源代码：

<强>活动

ArrayAdapter<String> myCustomAdapter = new ArrayAdapter<String>(this, R.layout.text_custom_view, countriesNames);

final AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.auto_complete_text_view);
textView.setAdapter(myCustomAdapter);

使用自定义TextView的XML

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/country_name"
    style="@style/CustomTextView"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:singleLine="true" />

最终结果

Answer 6

Here is answer in hope others will benefit

http://www.outofwhatbox.com/blog/2010/11/android-simpler-autocompletetextview-with-simplecursoradapter/

public class SelectState extends Activity {

final static int[] to = new int[] { android.R.id.text1 };  

    final static String[] from = new String[] { "state" };

    private TextView mStateCapitalView;
    private AutoCompleteTextView mStateNameView;
    private AutoCompleteDbAdapter mDbHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mDbHelper = new AutoCompleteDbAdapter(this);
        setContentView(R.layout.selectstate);
        Button confirmButton = (Button) findViewById(R.id.confirm);
        confirmButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                setResult(RESULT_OK);
                finish();
            }
        });

        mStateCapitalView = (TextView) findViewById(R.id.state_capital);
        mStateNameView = (AutoCompleteTextView) findViewById(R.id.state_name);

        // Create a SimpleCursorAdapter for the State Name field.
        SimpleCursorAdapter adapter = 
            new SimpleCursorAdapter(this, 
                    android.R.layout.simple_dropdown_item_1line, null,
                    from, to);
        mStateNameView.setAdapter(adapter);

        // Set an OnItemClickListener, to update dependent fields when
        // a choice is made in the AutoCompleteTextView.
        mStateNameView.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> listView, View view,
                        int position, long id) {
                // Get the cursor, positioned to the corresponding row in the
                // result set
                Cursor cursor = (Cursor) listView.getItemAtPosition(position);

                // Get the state's capital from this row in the database.
                String capital = 
                    cursor.getString(cursor.getColumnIndexOrThrow("capital"));

                // Update the parent class's TextView
                mStateCapitalView.setText(capital);
            }
        });

        // Set the CursorToStringConverter, to provide the labels for the
        // choices to be displayed in the AutoCompleteTextView.
        adapter.setCursorToStringConverter(new CursorToStringConverter() {
            public String convertToString(android.database.Cursor cursor) {
                // Get the label for this row out of the "state" column
                final int columnIndex = cursor.getColumnIndexOrThrow("state");
                final String str = cursor.getString(columnIndex);
                return str;
            }
        });

        // Set the FilterQueryProvider, to run queries for choices
        // that match the specified input.
        adapter.setFilterQueryProvider(new FilterQueryProvider() {
            public Cursor runQuery(CharSequence constraint) {
                // Search for states whose names begin with the specified letters.
                Cursor cursor = mDbHelper.getMatchingStates(
                        (constraint != null ? constraint.toString() : null));
                return cursor;
            }
        });
    }
}

请检查一下      final static int [] to = new int [] {android.R.id.text1};