blob: 9fe082dc685749ea5a187acd2c1a1f2d75f66afc [file] [log] [blame]
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.settings.display;
import android.content.Context;
import android.support.v4.content.res.TypedArrayUtils;
import android.support.v7.preference.Preference;
import android.text.TextUtils;
import android.util.AttributeSet;
import com.android.settingslib.display.DisplayDensityUtils;
/**
* Preference for changing the density of the display on which the preference
* is visible.
*/
public class ScreenZoomPreference extends Preference {
public ScreenZoomPreference(Context context, AttributeSet attrs) {
super(context, attrs, TypedArrayUtils.getAttr(context,
android.support.v7.preference.R.attr.preferenceStyle,
android.R.attr.preferenceStyle));
final DisplayDensityUtils density = new DisplayDensityUtils(context);
final int defaultIndex = density.getCurrentIndex();
if (defaultIndex < 0) {
setVisible(false);
setEnabled(false);
} else if (TextUtils.isEmpty(getSummary())) {
final String[] entries = density.getEntries();
final int currentIndex = density.getCurrentIndex();
setSummary(entries[currentIndex]);
}
}
}