| /* |
| * Copyright (C) 2014 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.statusbar; |
| |
| import android.content.Context; |
| import android.graphics.Canvas; |
| import android.graphics.PorterDuff; |
| import android.graphics.drawable.Drawable; |
| import android.util.AttributeSet; |
| import android.view.View; |
| |
| import com.android.keyguard.R; |
| |
| /** |
| * A view that can be used for both the dimmed and normal background of an notification. |
| */ |
| public class NotificationScrimView extends View { |
| |
| private Drawable mBackground; |
| private int mClipTopAmount; |
| private int mActualHeight; |
| |
| public NotificationScrimView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mBackground = getResources().getDrawable(R.drawable.notification_scrim); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| draw(canvas, mBackground); |
| } |
| |
| private void draw(Canvas canvas, Drawable drawable) { |
| if (drawable != null) { |
| drawable.setBounds(0, mClipTopAmount, getWidth(), mActualHeight); |
| drawable.draw(canvas); |
| } |
| } |
| |
| @Override |
| protected boolean verifyDrawable(Drawable who) { |
| return super.verifyDrawable(who) || who == mBackground; |
| } |
| |
| public void setActualHeight(int actualHeight) { |
| mActualHeight = actualHeight; |
| invalidate(); |
| } |
| |
| public int getActualHeight() { |
| return mActualHeight; |
| } |
| |
| public void setClipTopAmount(int clipTopAmount) { |
| mClipTopAmount = clipTopAmount; |
| invalidate(); |
| } |
| |
| @Override |
| public boolean hasOverlappingRendering() { |
| |
| // Prevents this view from creating a layer when alpha is animating. |
| return false; |
| } |
| } |