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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.emergency.preferences;
     17 
     18 import android.content.Context;
     19 import android.os.UserManager;
     20 import android.text.TextUtils;
     21 import android.util.AttributeSet;
     22 import android.widget.ArrayAdapter;
     23 
     24 import com.android.emergency.ReloadablePreferenceInterface;
     25 
     26 /**
     27  * {@link AutoCompleteEditTextPreference} that prepopulates the edit text view with the name of the
     28  * user provided in settings.
     29  */
     30 public class NameAutoCompletePreference extends AutoCompleteEditTextPreference implements
     31         ReloadablePreferenceInterface {
     32     public NameAutoCompletePreference(Context context, AttributeSet attrs) {
     33         super(context, attrs);
     34         getAutoCompleteTextView().setAdapter(createAdapter());
     35     }
     36 
     37     private ArrayAdapter createAdapter() {
     38         UserManager userManager =
     39                 (UserManager) getContext().getSystemService(Context.USER_SERVICE);
     40         String[] autocompleteSuggestions = {userManager.getUserName()};
     41         return new ArrayAdapter<String>(getContext(),
     42                 android.R.layout.simple_dropdown_item_1line, autocompleteSuggestions);
     43     }
     44 
     45 
     46     @Override
     47     public void reloadFromPreference() {
     48         setText(getPersistedString(""));
     49     }
     50 
     51     @Override
     52     public boolean isNotSet() {
     53         return TextUtils.isEmpty(getText());
     54     }
     55 
     56     @Override
     57     public CharSequence getSummary() {
     58         String text = getText();
     59         return TextUtils.isEmpty(text) ? super.getSummary() : text;
     60     }
     61 }
     62