fixes more error
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MrSluffy
@@ -0,0 +1,281 @@
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/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.wm.shell.draganddrop;
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import static com.android.wm.shell.animation.Interpolators.FAST_OUT_SLOW_IN;
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import android.animation.Animator;
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import android.animation.ObjectAnimator;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Path;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.util.FloatProperty;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import androidx.annotation.Nullable;
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import com.android.internal.policy.ScreenDecorationsUtils;
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import com.android.wm.shell.R;
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/**
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* Renders a drop zone area for items being dragged.
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*/
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public class DropZoneView extends FrameLayout {
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private static final float SPLASHSCREEN_ALPHA = 0.90f;
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private static final float HIGHLIGHT_ALPHA = 1f;
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private static final int MARGIN_ANIMATION_ENTER_DURATION = 400;
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private static final int MARGIN_ANIMATION_EXIT_DURATION = 250;
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private static final FloatProperty<DropZoneView> INSETS =
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new FloatProperty<DropZoneView>("insets") {
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@Override
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public void setValue(DropZoneView v, float percent) {
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v.setMarginPercent(percent);
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}
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@Override
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public Float get(DropZoneView v) {
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return v.getMarginPercent();
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}
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};
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private final Path mPath = new Path();
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private final float[] mContainerMargin = new float[4];
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private float mCornerRadius;
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private float mBottomInset;
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private boolean mIgnoreBottomMargin;
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private int mMarginColor; // i.e. color used for negative space like the container insets
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private boolean mShowingHighlight;
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private boolean mShowingSplash;
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private boolean mShowingMargin;
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private int mSplashScreenColor;
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private int mHighlightColor;
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private ObjectAnimator mBackgroundAnimator;
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private ObjectAnimator mMarginAnimator;
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private float mMarginPercent;
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// Renders a highlight or neutral transparent color
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private ColorDrawable mColorDrawable;
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// Renders the translucent splashscreen with the app icon in the middle
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private ImageView mSplashScreenView;
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// Renders the margin / insets around the dropzone container
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private MarginView mMarginView;
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public DropZoneView(Context context) {
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this(context, null);
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}
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public DropZoneView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public DropZoneView(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public DropZoneView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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setContainerMargin(0, 0, 0, 0); // make sure it's populated
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mCornerRadius = ScreenDecorationsUtils.getWindowCornerRadius(context);
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mMarginColor = getResources().getColor(R.color.taskbar_background_dark);
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int c = getResources().getColor(android.R.color.system_accent1_500);
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mHighlightColor = Color.argb(HIGHLIGHT_ALPHA, Color.red(c), Color.green(c), Color.blue(c));
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mSplashScreenColor = Color.argb(SPLASHSCREEN_ALPHA, 0, 0, 0);
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mColorDrawable = new ColorDrawable();
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setBackgroundDrawable(mColorDrawable);
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final int iconSize = context.getResources().getDimensionPixelSize(R.dimen.split_icon_size);
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mSplashScreenView = new ImageView(context);
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mSplashScreenView.setScaleType(ImageView.ScaleType.FIT_CENTER);
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addView(mSplashScreenView,
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new FrameLayout.LayoutParams(iconSize, iconSize, Gravity.CENTER));
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mSplashScreenView.setAlpha(0f);
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mMarginView = new MarginView(context);
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addView(mMarginView, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
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ViewGroup.LayoutParams.MATCH_PARENT));
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}
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public void onThemeChange() {
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mCornerRadius = ScreenDecorationsUtils.getWindowCornerRadius(getContext());
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mMarginColor = getResources().getColor(R.color.taskbar_background_dark);
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mHighlightColor = getResources().getColor(android.R.color.system_accent1_500);
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if (mMarginPercent > 0) {
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mMarginView.invalidate();
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}
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}
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/** Sets the desired margins around the drop zone container when fully showing. */
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public void setContainerMargin(float left, float top, float right, float bottom) {
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mContainerMargin[0] = left;
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mContainerMargin[1] = top;
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mContainerMargin[2] = right;
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mContainerMargin[3] = bottom;
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if (mMarginPercent > 0) {
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mMarginView.invalidate();
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}
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}
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/** Ignores the bottom margin provided by the insets. */
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public void setForceIgnoreBottomMargin(boolean ignoreBottomMargin) {
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mIgnoreBottomMargin = ignoreBottomMargin;
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if (mMarginPercent > 0) {
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mMarginView.invalidate();
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}
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}
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/** Sets the bottom inset so the drop zones are above bottom navigation. */
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public void setBottomInset(float bottom) {
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mBottomInset = bottom;
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((LayoutParams) mSplashScreenView.getLayoutParams()).bottomMargin = (int) bottom;
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if (mMarginPercent > 0) {
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mMarginView.invalidate();
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}
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}
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/** Sets the color and icon to use for the splashscreen when shown. */
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public void setAppInfo(int color, Drawable appIcon) {
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Color c = Color.valueOf(color);
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mSplashScreenColor = Color.argb(SPLASHSCREEN_ALPHA, c.red(), c.green(), c.blue());
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mSplashScreenView.setImageDrawable(appIcon);
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}
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/** @return an active animator for this view if one exists. */
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@Nullable
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public Animator getAnimator() {
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if (mMarginAnimator != null && mMarginAnimator.isRunning()) {
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return mMarginAnimator;
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} else if (mBackgroundAnimator != null && mBackgroundAnimator.isRunning()) {
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return mBackgroundAnimator;
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}
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return null;
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}
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/** Animates between highlight and splashscreen depending on current state. */
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public void animateSwitch() {
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mShowingHighlight = !mShowingHighlight;
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mShowingSplash = !mShowingHighlight;
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final int newColor = mShowingHighlight ? mHighlightColor : mSplashScreenColor;
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animateBackground(mColorDrawable.getColor(), newColor);
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animateSplashScreenIcon();
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}
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/** Animates the highlight indicating the zone is hovered on or not. */
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public void setShowingHighlight(boolean showingHighlight) {
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mShowingHighlight = showingHighlight;
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mShowingSplash = !mShowingHighlight;
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final int newColor = mShowingHighlight ? mHighlightColor : mSplashScreenColor;
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animateBackground(Color.TRANSPARENT, newColor);
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animateSplashScreenIcon();
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}
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/** Animates the margins around the drop zone to show or hide. */
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public void setShowingMargin(boolean visible) {
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if (mShowingMargin != visible) {
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mShowingMargin = visible;
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animateMarginToState();
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}
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if (!mShowingMargin) {
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mShowingHighlight = false;
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mShowingSplash = false;
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animateBackground(mColorDrawable.getColor(), Color.TRANSPARENT);
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animateSplashScreenIcon();
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}
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}
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private void animateBackground(int startColor, int endColor) {
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if (mBackgroundAnimator != null) {
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mBackgroundAnimator.cancel();
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}
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mBackgroundAnimator = ObjectAnimator.ofArgb(mColorDrawable,
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"color",
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startColor,
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endColor);
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if (!mShowingSplash && !mShowingHighlight) {
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mBackgroundAnimator.setInterpolator(FAST_OUT_SLOW_IN);
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}
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mBackgroundAnimator.start();
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}
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private void animateSplashScreenIcon() {
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mSplashScreenView.animate().alpha(mShowingSplash ? 1f : 0f).start();
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}
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private void animateMarginToState() {
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if (mMarginAnimator != null) {
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mMarginAnimator.cancel();
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}
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mMarginAnimator = ObjectAnimator.ofFloat(this, INSETS,
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mMarginPercent,
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mShowingMargin ? 1f : 0f);
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mMarginAnimator.setInterpolator(FAST_OUT_SLOW_IN);
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mMarginAnimator.setDuration(mShowingMargin
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? MARGIN_ANIMATION_ENTER_DURATION
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: MARGIN_ANIMATION_EXIT_DURATION);
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mMarginAnimator.start();
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}
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private void setMarginPercent(float percent) {
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if (percent != mMarginPercent) {
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mMarginPercent = percent;
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mMarginView.invalidate();
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}
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}
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private float getMarginPercent() {
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return mMarginPercent;
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}
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/** Simple view that draws a rounded rect margin around its contents. **/
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private class MarginView extends View {
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MarginView(Context context) {
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super(context);
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}
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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mPath.reset();
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mPath.addRoundRect(mContainerMargin[0] * mMarginPercent,
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mContainerMargin[1] * mMarginPercent,
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getWidth() - (mContainerMargin[2] * mMarginPercent),
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getHeight() - (mContainerMargin[3] * mMarginPercent)
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- (mIgnoreBottomMargin ? 0 : mBottomInset),
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mCornerRadius * mMarginPercent,
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mCornerRadius * mMarginPercent,
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Path.Direction.CW);
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mPath.setFillType(Path.FillType.INVERSE_EVEN_ODD);
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canvas.clipPath(mPath);
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canvas.drawColor(mMarginColor);
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}
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}
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}
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