我正在尝试更改我的AutocompleteSupportFragment字段的样式
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/llSearchHolder"
android:padding="7dp">
<fragment android:id="@+id/autocomplete_fragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:name="com.google.android.libraries.places.widget.AutocompleteSupportFragment"
android:hint="@string/Iam_going_to"
/>
</LinearLayout>
我尝试实现answers on this page,但始终会出现Caused by: java.lang.ClassCastException: android.widget.LinearLayout cannot be cast to android.widget.EditText
错误。我正在使用Kotlin,所以我的代码如下所示:
val autocompleteFragment = supportFragmentManager.findFragmentById(R.id.autocomplete_fragment) as AutocompleteSupportFragment?
autocompleteFragment!!.setPlaceFields(Arrays.asList(Place.Field.ID, Place.Field.NAME));
((autocompleteFragment.getView()!!.findViewById(R.id.autocomplete_fragment)) as EditText).textSize = 30.0f
您需要使用以下代码
((autocompleteFragment.getView()!!.findViewById(R.id.places_autocomplete_search_input)) as EditText).textSize = 30.0f
EditText的正确ID是places_autocomplete_search_input
而不是autocomplete_fragment
问题分析
您正在xml中使用片段com.google.android.libraries.places.widget.AutocompleteSupportFragment
[查看AutocompleteSupportFragment片段的代码时,您可以看到它使用布局places_autocomplete_fragment.xml
。下面的代码
public class AutocompleteSupportFragment extends Fragment {
....
public AutocompleteSupportFragment() {
super(layout.places_autocomplete_fragment);
....
}
}
现在,如果您查看places_autocomplete_fragment.xml
,可以看到EditText的ID为places_autocomplete_search_input
,下面的代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusable="true"
android:focusableInTouchMode="true"
android:gravity="center"
android:layoutDirection="locale"
android:orientation="vertical"
android:textDirection="locale">
<ImageButton
android:id="@+id/places_autocomplete_search_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="@null"
android:contentDescription="@string/places_autocomplete_search_hint"
android:padding="@dimen/places_autocomplete_button_padding"
android:src="@drawable/quantum_ic_search_grey600_24" />
<EditText
android:id="@+id/places_autocomplete_search_input"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@null"
android:focusable="false"
android:focusableInTouchMode="false"
android:hint="@string/places_autocomplete_search_hint"
android:inputType="textNoSuggestions"
android:lines="1"
android:maxLines="1"
android:paddingLeft="@dimen/places_autocomplete_search_input_padding"
android:paddingRight="@dimen/places_autocomplete_search_input_padding"
android:singleLine="true"
android:textColor="@color/places_autocomplete_search_text"
android:textColorHint="@color/places_autocomplete_search_hint"
android:textSize="@dimen/places_autocomplete_search_input_text" />
<ImageButton
android:id="@+id/places_autocomplete_clear_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:background="@null"
android:contentDescription="@string/places_autocomplete_clear_button"
android:padding="@dimen/places_autocomplete_button_padding"
android:src="@drawable/quantum_ic_clear_grey600_24" />
</LinearLayout>