android - 如何将边距设置为自动完成 TextView 适配器

Question

我在工具栏中设置了 autocompletetextview。当用户提供搜索查询时，我有一个适配器(添加了一些用于测试的虚拟数据)显示基于搜索查询的结果。

问题出在适配器宽度上，因为它设置为 autocompletetextview 宽度。但在这里我希望将适配器宽度设置为工具栏宽度以及工具栏和适配器之间的边距。

这是我写的代码:

searchView = (AutoCompleteTextView) findViewById(R.id.searchView);
SearchAdapter searchAdapter = new SearchAdapter(NavigationDrawerActivity.this,searchResults,searchView);
        searchView.setAdapter(searchAdapter);

这是我的适配器:

public class SearchAdapter extends ArrayAdapter<SearchResult> {

    private boolean mAnimate;
    private AutoCompleteTextView mSearch;
    public SearchAdapter(Context context, List<SearchResult> options, AutoCompleteTextView search) {
        super(context, 0, options);
        mSearch = search;
    }

    int count = 0;

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        SearchResult option = getItem(position);
        if (convertView == null) {
            convertView = LayoutInflater.from(getContext()).inflate(
                    R.layout.search_option, parent, false);

         /*   if (true) {
                Animation anim = AnimationUtils.loadAnimation(getContext(),
                        R.anim.anim_down);
                anim.setDuration(400);
                convertView.startAnimation(anim);
                if (count == this.getCount()) {
                    mAnimate = false;
                }
                count++;
            }*/
        }

        View border = convertView.findViewById(R.id.border);
        if (position == 0) {
            border.setVisibility(View.VISIBLE);
        } else {
            border.setVisibility(View.GONE);
        }
        final TextView title = (TextView) convertView
                .findViewById(R.id.title);
        title.setText(option.title);
        ImageView icon = (ImageView) convertView.findViewById(R.id.icon);
        icon.setImageDrawable(option.icon);
        ImageView up = (ImageView) convertView.findViewById(R.id.up);
        up.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mSearch.setText(title.getText().toString());
                mSearch.setSelection(mSearch.getText().length());
            }
        });

        return convertView;
    }
}

这是我的适配器行布局:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:background="@android:color/white"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/icon"
        android:layout_width="32dp"
        android:layout_height="32dp"
        android:layout_centerVertical="true"
        android:layout_margin="10dp"
        android:paddingLeft="3dp"
        android:adjustViewBounds="true"
        android:cropToPadding="true" />

    <TextView
        android:id="@+id/title"
        android:singleLine="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="#212121"
        android:layout_centerVertical="true"
        android:layout_marginLeft="62dp"
        android:layout_alignParentLeft="true"
        android:layout_toLeftOf="@+id/up"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <ImageView
        android:id="@+id/up"
        android:layout_alignParentRight="true"
        android:layout_width="32dp"
        android:layout_margin="10dp"
        android:layout_marginRight="24dp"
        android:layout_gravity="center|right"
        android:layout_height="32dp"
        android:src="@drawable/ic_up" />

    <View
        android:id="@+id/border"
        android:layout_width="fill_parent"
        android:layout_height="1dp"
        android:background="#E8E8E8" />

</RelativeLayout>

通过上面的代码，我得到了这样的结果: Need the adapter aligned to toolbar width我试过像这样设置适配器宽度:

 Rect screenSize = new Rect();
        getWindowManager().getDefaultDisplay().getRectSize(screenSize);
        // screen width
        int screenWidth = screenSize.width();
        int adapterMargin = (int)getResources().getDimension(R.dimen.adapter_margin);
        searchView.setDropDownWidth(screenWidth - adapterMargin);

但这里的问题是我没有得到正确的边距，如下所示: screen with adapter width set

请帮我解决这个问题。

Answer 1

看起来您想将适配器宽度设置为工具栏宽度，将以下行添加到您的代码中它会起作用:

searchView.setDropDownAnchor(toolbar.getId());

如有疑问请在下方评论