| /* |
| * Copyright (C) 2017 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.systemui; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.util.AttributeSet; |
| import android.widget.ImageView; |
| |
| import com.android.systemui.statusbar.policy.BatteryController; |
| import com.android.systemui.statusbar.policy.ConfigurationController; |
| |
| /** |
| * A view that only shows its drawable while the phone is charging. |
| * |
| * Also reloads its drawable upon density changes. |
| */ |
| public class ChargingView extends ImageView implements |
| BatteryController.BatteryStateChangeCallback, |
| ConfigurationController.ConfigurationListener { |
| |
| private BatteryController mBatteryController; |
| private int mImageResource; |
| private boolean mCharging; |
| private boolean mDark; |
| |
| public ChargingView(Context context, @Nullable AttributeSet attrs) { |
| super(context, attrs); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, new int[]{android.R.attr.src}); |
| int srcResId = a.getResourceId(0, 0); |
| |
| if (srcResId != 0) { |
| mImageResource = srcResId; |
| } |
| |
| a.recycle(); |
| |
| updateVisibility(); |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| mBatteryController = Dependency.get(BatteryController.class); |
| mBatteryController.addCallback(this); |
| Dependency.get(ConfigurationController.class).addCallback(this); |
| } |
| |
| @Override |
| public void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| mBatteryController.removeCallback(this); |
| Dependency.get(ConfigurationController.class).removeCallback(this); |
| } |
| |
| @Override |
| public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) { |
| mCharging = charging; |
| updateVisibility(); |
| } |
| |
| @Override |
| public void onDensityOrFontScaleChanged() { |
| setImageResource(mImageResource); |
| } |
| |
| public void setDark(boolean dark) { |
| mDark = dark; |
| updateVisibility(); |
| } |
| |
| private void updateVisibility() { |
| setVisibility(mCharging && mDark ? VISIBLE : INVISIBLE); |
| } |
| } |