设置Android AutoComplete的样式
作者：互联网
我有一个要应用某些样式的AutoCompleteTextView.代码可以正常工作,基本样式也可以,但是我想更改一些更高级的内容.特别：
自定义字体
我的搜索栏使用我的应用程序的自定义字体,但是预测行使用系统的默认字体显示.这是我为搜索结果设置字体的方式：
mSearchTextView.setTypeface(font.mAvenirLTStandardLight);
从下拉菜单中删除阴影
默认的下拉选项带有阴影,我的应用程序使用更扁平的设计.如果可能的话,我想删除它.
在下拉菜单中添加半径
我能够对每个结果线的半径进行取整,但是无法弄清楚如何将曲线应用于整个下拉框.
这是我适用的代码部分：
private void setAutoCompleteListener() {
AutoCompleteAdapter adapter = new AutoCompleteAdapter(mContext,
R.layout.autocomplete_list_item, mLatLng);
mSearchTextView.setAdapter(adapter);
mSearchTextView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
String str = (String) adapterView.getItemAtPosition(i);
initiateSearch();
hideKeyboard();
}
});
}
activity_map.xml
<AutoCompleteTextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/actvSearch"
android:hint="@string/search_or_enter_address"
android:background="@color/transparent_white"
android:textSize="14sp"
android:textColor="@color/black"
android:layout_centerVertical="true"
android:layout_toEndOf="@id/ibLogoImage"
android:layout_toStartOf="@id/ibSearch"
android:dropDownAnchor="@id/search_bar"
android:dropDownVerticalOffset="0dp" />
autocomplete_list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:textColor="@color/black"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:paddingStart="25dp"
android:paddingEnd="25dp"/>
AutoCompleteAdapter.java
public class AutoCompleteAdapter extends ArrayAdapter<String> implements Filterable {
private static String TAG = "AutoComplete";
/*
* The lat/lng of the current location.
*/
private LatLng mLatLng;
/*
* A list of the autocomplete results.
*/
private ArrayList<String> mResults;
public AutoCompleteAdapter(Context context, int textViewResourceId, LatLng latLng) {
super(context, textViewResourceId);
Log.d(TAG, "Center of Screen: " + latLng.toString());
mLatLng = latLng;
}
@Override
public int getCount() {
return mResults.size();
}
@Override
public String getItem(int index) {
return mResults.get(index);
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults filterResults = new FilterResults();
if (constraint != null) {
// Retrieve the AutocompleteHelper results.
mResults = AutoCompleteHelper.getAutoCompletePredictions(
constraint.toString(),
mLatLng);
// Assign the data to the FilterResults
filterResults.values = mResults;
filterResults.count = mResults.size();
}
return filterResults;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
if (results != null && results.count > 0) {
notifyDataSetChanged();
}
else {
notifyDataSetInvalidated();
}
}};
return filter;
}
}
解决方法:
我实际上可以弄清所有问题：)这是我使用的相关代码.
自定义字体
这个技巧是,我必须在Activity中将字体设置为mAutoCompleteTextView和tvAutocompleteListItem.
去除阴影
我将mAutoCompleteTextView的背景设置为R.drawable.autocomplete_dropdown.在该绘图中,重要的一行是
<stroke
android:width="0dip"
android:color="@color/cp_green" />
半径
半径是在R.drawable.autocomplete_dropdown中设置的,如下所示：
<corners
android:radius="20dip"/>
MapActivity.java
private void setAutoCompleteListener() {
mAutoCompleteTextView.setDropDownBackgroundDrawable(
mContext.getResources().getDrawable(R.drawable.autocomplete_dropdown));
mAutoCompleteTextView.setAdapter(
new AutoCompleteAdapter(mContext, R.layout.autocomplete_list_item, mLatLng));
mAutoCompleteTextView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
String autoCompleteText = (String) adapterView.getItemAtPosition(i);
mAutoCompleteTextView.setText(autoCompleteText);
initiateSearch();
hideKeyboard();
}
});
mAutoCompleteTextView.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
}
@Override
public void afterTextChanged(Editable editable) {
if (editable.length() > 0) {
mClearTextIcon.setVisibility(View.VISIBLE);
} else {
mClearTextIcon.setVisibility(View.INVISIBLE);
}
}
});
}
public void applyFonts() {
Log.d(TAG, "Applying Fonts.");
FontHelper.applyFont(findViewById(R.id.rlMap), mContext);
font = Font.getInstance(getApplicationContext());
mAutoCompleteTextView.setTypeface(font.mAvenirLTStandardLight);
LayoutInflater inflater = (LayoutInflater) getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.autocomplete_list_item, null);
TextView tvAutocompleteListItem = (TextView) view.findViewById(R.id.tvAutocompleteListItem);
tvAutocompleteListItem.setTypeface(font.mAvenirLTStandardLight);
}
autocomplete_dropdown.xml
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid
android:color="@color/white" />
<stroke
android:width="0dip"
android:color="@color/cp_green" />
<corners
android:radius="20dip"/>
<padding
android:left="25dip"
android:top="10dip"
android:right="25dip"
android:bottom="10dip" />
</shape>
autocomplete_list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:textColor="@color/gray_text"
android:textSize="14sp"
android:layout_marginStart="25dp"
android:layout_marginEnd="25dp"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:id="@+id/tvAutocompleteListItem"/>
activity_map.xml
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/search"
android:id="@+id/search"
android:paddingTop="8dp"
android:paddingBottom="8dp"
android:paddingStart="10dp"
android:paddingEnd="10dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="44dp"
android:background="@drawable/search_bar"
android:id="@+id/search_bar">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/logo_image"
android:layout_centerVertical="true"
android:layout_marginStart="10dp"
android:layout_marginEnd="0dp"
android:id="@+id/ibLogoImage"
android:contentDescription="@string/logo"/>
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/search_icon"
android:layout_centerVertical="true"
android:layout_marginStart="0dp"
android:layout_marginEnd="15dp"
android:layout_alignParentEnd="true"
android:id="@+id/ibSearch"
android:contentDescription="@string/search_hint"/>
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/ibClearText"
android:layout_toStartOf="@id/ibSearch"
android:background="@drawable/clear_text"
android:visibility="invisible"
android:layout_centerVertical="true"
android:layout_marginStart="10dp"
android:layout_marginEnd="20dp"
android:contentDescription="@string/clear" />
<AutoCompleteTextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/actvSearch"
android:hint="@string/search_or_enter_address"
android:background="@color/transparent_white"
android:textSize="14sp"
android:textColor="@color/black"
android:completionThreshold="3"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_centerVertical="true"
android:layout_toEndOf="@id/ibLogoImage"
android:layout_toStartOf="@id/ibClearText"
android:dropDownAnchor="@id/search_bar"
android:dropDownVerticalOffset="10dp" />
</RelativeLayout>
</RelativeLayout>
标签：autocompletetextview,android 来源： https://codeday.me/bug/20191028/1953013.html