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.preference.EditTextPreference; 20 import android.text.TextUtils; 21 import android.util.AttributeSet; 22 import android.view.View; 23 import android.widget.TextView; 24 25 import com.android.emergency.ReloadablePreferenceInterface; 26 27 /** 28 * Custom {@link EditTextPreference} that allows us to refresh and update the summary. 29 */ 30 public class EmergencyEditTextPreference extends EditTextPreference 31 implements ReloadablePreferenceInterface { 32 33 private static final int MAX_LINES = 50; 34 EmergencyEditTextPreference(Context context, AttributeSet attrs)35 public EmergencyEditTextPreference(Context context, AttributeSet attrs) { 36 super(context, attrs); 37 } 38 39 @Override reloadFromPreference()40 public void reloadFromPreference() { 41 setText(getPersistedString("")); 42 } 43 44 @Override isNotSet()45 public boolean isNotSet() { 46 return TextUtils.isEmpty(getText()); 47 } 48 49 @Override getSummary()50 public CharSequence getSummary() { 51 String text = getText(); 52 return TextUtils.isEmpty(text) ? super.getSummary() : text; 53 } 54 55 @Override onBindView(View view)56 protected void onBindView(View view) { 57 super.onBindView(view); 58 final TextView summaryView = (TextView) view.findViewById( 59 com.android.internal.R.id.summary); 60 summaryView.setMaxLines(MAX_LINES); 61 } 62 } 63