0717e24f7d
Bug: 139449903 Test: atest SettingsUnitTest SettingsRoboTests Change-Id: Ic188fdc02c3fa9590be27ad1bc770255e70b6276
89 lines
3.3 KiB
Java
89 lines
3.3 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.settings.display;
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import android.content.Context;
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import android.content.res.Resources;
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import android.text.BidiFormatter;
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import android.text.InputType;
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import android.util.AttributeSet;
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import android.util.DisplayMetrics;
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import android.util.Slog;
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import android.view.Display;
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import android.view.View;
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import android.widget.EditText;
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import com.android.settings.R;
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import com.android.settings.Utils;
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import com.android.settingslib.CustomEditTextPreferenceCompat;
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import com.android.settingslib.display.DisplayDensityConfiguration;
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import java.text.NumberFormat;
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public class DensityPreference extends CustomEditTextPreferenceCompat {
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private static final String TAG = "DensityPreference";
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public DensityPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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@Override
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public void onAttached() {
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super.onAttached();
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final CharSequence dpValue = BidiFormatter.getInstance()
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.unicodeWrap(NumberFormat.getInstance().format(getCurrentSwDp()));
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setSummary(getContext().getString(R.string.density_pixel_summary,dpValue));
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}
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private int getCurrentSwDp() {
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final Resources res = getContext().getResources();
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final DisplayMetrics metrics = res.getDisplayMetrics();
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final float density = metrics.density;
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final int minDimensionPx = Math.min(metrics.widthPixels, metrics.heightPixels);
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return (int) (minDimensionPx / density);
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}
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@Override
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protected void onBindDialogView(View view) {
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super.onBindDialogView(view);
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final EditText editText = (EditText) view.findViewById(android.R.id.edit);
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if (editText != null) {
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editText.setInputType(InputType.TYPE_CLASS_NUMBER);
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editText.setText(getCurrentSwDp() + "");
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Utils.setEditTextCursorPosition(editText);
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}
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}
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@Override
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protected void onDialogClosed(boolean positiveResult) {
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if (positiveResult) {
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try {
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final Resources res = getContext().getResources();
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final DisplayMetrics metrics = res.getDisplayMetrics();
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final int newSwDp = Math.max(Integer.parseInt(getText()), 320);
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final int minDimensionPx = Math.min(metrics.widthPixels, metrics.heightPixels);
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final int newDensity = DisplayMetrics.DENSITY_MEDIUM * minDimensionPx / newSwDp;
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final int densityDpi = Math.max(newDensity, 120);
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DisplayDensityConfiguration.setForcedDisplayDensity(Display.DEFAULT_DISPLAY, densityDpi);
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} catch (Exception e) {
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// TODO: display a message instead of silently failing.
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Slog.e(TAG, "Couldn't save density", e);
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}
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}
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}
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}
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