情况:
我的 appcompat 工具栏中有一个 searchview 小部件,允许通过 sqlitedatabase 提供自定义建议。
Problem:
我无法将下拉建议列表扩展到屏幕的整个宽度。最好的情况下,列表宽度几乎是屏幕的宽度,除了左侧和右侧的小边距/填充问题。如何使下拉列表与屏幕宽度相同?
我尝试过的事情:
搜索查看结果列表宽度 https://stackoverflow.com/questions/26299260/searchview-results-list-width
AutoCompleteText的setPadding、setRight/setLeft、setDropDownHorizontalOffset、设置布局参数、设置宽度为match_parent。
菜单/搜索.xml
<item
android:id="@+id/search_restaurant"
android:title="Search"
android:icon="@drawable/search"
android:orderInCategory="2"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="always"/>
res/search_view_suggestions_list_item
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="48dp"
android:textAppearance="?android:attr/textAppearanceListItemSmall"
android:background="@android:color/white"
android:gravity="center_vertical"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:minHeight="?android:attr/listPreferredItemHeightSmall"/>
活动/Activity.java
MenuItem searchItem = menu.findItem(R.id.search_restaurant);
searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
searchView.setQueryHint("Search Restaurant");
searchView.setOnQueryTextListener(this);
searchView.setOnSuggestionListener(this);
final AutoCompleteTextView searchAutoCompleteTextView = (AutoCompleteTextView) searchView
.findViewById(R.id.search_src_text);
searchAutoCompleteTextView.setThreshold(1);
searchAutoCompleteTextView.setDropDownWidth(ViewGroup.LayoutParams.MATCH_PARENT);
// Tried to change margins/padding here
LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)
searchAutoCompleteTextView.getLayoutParams();
params.setMargins(0, 0, 0, 0);
searchAutoCompleteTextView.setLayoutParams(params);
searchAutoCompleteTextView.setPadding(0, 0, 0, 0);
searchAutoCompleteTextView.setDropDownHorizontalOffset(-100);
searchAutoCompleteTextView.setPadding(0,0,0,0);
searchAutoCompleteTextView.setLeft(0);
final View dropDownSuggestions = searchView.findViewById(searchAutoCompleteTextView
.getDropDownAnchor());
if (dropDownSuggestions != null) {
dropDownSuggestions.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
@Override
public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
int point[] = new int[2];
dropDownSuggestions.getLocationOnScreen(point);
int dropDownPadding = point[0] + searchAutoCompleteTextView
.getDropDownHorizontalOffset();
Rect screenSize = new Rect();
getWindowManager().getDefaultDisplay().getRectSize(screenSize);
int screenWidth = screenSize.width();
searchAutoCompleteTextView.setDropDownWidth(screenWidth * 2);
}
});
}