EmergencyEditTextPreference.java revision 2c0518a7dfd5b7cd36e88d9f2df064b1e756bd83
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 */ 16package com.android.emergency.preferences; 17 18import android.content.Context; 19import android.support.v7.preference.PreferenceViewHolder; 20import android.text.TextUtils; 21import android.util.AttributeSet; 22import android.view.View; 23import android.widget.TextView; 24 25import com.android.emergency.ReloadablePreferenceInterface; 26import com.android.settingslib.CustomEditTextPreference; 27 28/** 29 * Custom {@link EditTextPreference} that allows us to refresh and update the summary. 30 */ 31public class EmergencyEditTextPreference extends CustomEditTextPreference 32 implements ReloadablePreferenceInterface { 33 34 private static final int MAX_LINES = 50; 35 36 public EmergencyEditTextPreference(Context context, AttributeSet attrs) { 37 super(context, attrs); 38 } 39 40 @Override 41 public void reloadFromPreference() { 42 setText(getPersistedString("")); 43 } 44 45 @Override 46 public boolean isNotSet() { 47 return TextUtils.isEmpty(getText()); 48 } 49 50 @Override 51 public CharSequence getSummary() { 52 String text = getText(); 53 return TextUtils.isEmpty(text) ? super.getSummary() : text; 54 } 55 56 @Override 57 public void onBindViewHolder(PreferenceViewHolder holder) { 58 super.onBindViewHolder(holder); 59 final TextView summaryView = (TextView) holder.findViewById( 60 com.android.internal.R.id.summary); 61 summaryView.setMaxLines(MAX_LINES); 62 } 63 64 @Override 65 protected void onBindDialogView(View view) { 66 super.onBindDialogView(view); 67 getEditText().setSelection(getEditText().getText().length()); 68 } 69} 70