Files
app_Settings/src/com/android/settings/accessibility/FlashNotificationsPreviewPreference.java
Angela Wang 53a8cc0326 Disabled state UI of Flash Notifications preview button
When both the camera flash and screen flash toggles are turned off, tapping on the preview button will have no effect and may confuse users. To avoid this, the appearance of the preview button should be updated to clearly indicated that its current state is disabled. This wil help users better understand the situation and prevent confusion.

Bug: 276494146
Test: checks the UI manually
Test: make RunSettingsRoboTests ROBOTEST_FILTER=FlashNotificationsPreviewPreferenceTest
Change-Id: I55b11188fde6e551921a9b0f7c89daa20a8b766b
2023-05-09 16:48:35 +00:00

94 lines
3.1 KiB
Java

/*
* Copyright (C) 2023 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.accessibility;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.View;
import android.widget.TextView;
import androidx.annotation.ColorInt;
import androidx.preference.Preference;
import androidx.preference.PreferenceViewHolder;
import com.android.settings.R;
import com.android.settingslib.Utils;
/**
* Preference for Flash notifications preview.
*/
public class FlashNotificationsPreviewPreference extends Preference {
private Drawable mBackgroundEnabled;
private Drawable mBackgroundDisabled;
@ColorInt
private int mTextColorDisabled;
public FlashNotificationsPreviewPreference(Context context) {
super(context);
init();
}
public FlashNotificationsPreviewPreference(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public FlashNotificationsPreviewPreference(Context context, AttributeSet attrs,
int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
public FlashNotificationsPreviewPreference(Context context, AttributeSet attrs,
int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init();
}
private void init() {
setLayoutResource(R.layout.flash_notification_preview_preference);
mBackgroundEnabled = getContext().getDrawable(R.drawable.settingslib_switch_bar_bg_on);
mBackgroundDisabled = getContext().getDrawable(R.drawable.switch_bar_bg_disabled);
mTextColorDisabled = Utils.getColorAttrDefaultColor(getContext(),
android.R.attr.textColorPrimary);
}
@Override
public void onBindViewHolder(PreferenceViewHolder holder) {
super.onBindViewHolder(holder);
final boolean enabled = isEnabled();
final View frame = holder.findViewById(R.id.frame);
if (frame != null) {
frame.setBackground(enabled ? mBackgroundEnabled : mBackgroundDisabled);
}
final TextView title = (TextView) holder.findViewById(android.R.id.title);
if (title != null) {
@ColorInt final int textColorEnabled = title.getCurrentTextColor();
title.setAlpha(enabled ? 1f : 0.38f);
title.setTextColor(enabled ? textColorEnabled : mTextColorDisabled);
}
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
notifyChanged();
}
}