src/com/android/launcher3/notification/NotificationMainView.java - platform/packages/apps/Launcher3 - Git at Google

 /*
  * 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.launcher3.notification;

 import static com.android.launcher3.Utilities.mapToRange;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_NOTIFICATION_DISMISSED;

 import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.Outline;
 import android.graphics.Rect;
 import android.graphics.drawable.GradientDrawable;
 import android.os.Build;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewOutlineProvider;
 import android.widget.LinearLayout;
 import android.widget.TextView;

 import androidx.annotation.Nullable;

 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.Themes;

 /**
  * A {@link android.widget.FrameLayout} that contains a single notification,
  * e.g. icon + title + text.
  */
 @TargetApi(Build.VERSION_CODES.N)
 public class NotificationMainView extends LinearLayout {

     // This is used only to track the notification view, so that it can be properly logged.
     public static final ItemInfo NOTIFICATION_ITEM_INFO = new ItemInfo();

     // Value when the primary notification main view will be gone (zero alpha).
     private static final float PRIMARY_GONE_PROGRESS = 0.7f;
     private static final float PRIMARY_MIN_PROGRESS = 0.40f;
     private static final float PRIMARY_MAX_PROGRESS = 0.60f;
     private static final float SECONDARY_MIN_PROGRESS = 0.30f;
     private static final float SECONDARY_MAX_PROGRESS = 0.50f;
     private static final float SECONDARY_CONTENT_MAX_PROGRESS = 0.6f;

     private NotificationInfo mNotificationInfo;
     private int mBackgroundColor;
     private TextView mTitleView;
     private TextView mTextView;
     private View mIconView;

     private View mHeader;
     private View mMainView;

     private TextView mHeaderCount;
     private final Rect mOutline = new Rect();

     // Space between notifications during swipe
     private final int mNotificationSpace;
     private final int mMaxTransX;
     private final int mMaxElevation;

     private final GradientDrawable mBackground;

     public NotificationMainView(Context context) {
         this(context, null, 0);
     }

     public NotificationMainView(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }

     public NotificationMainView(Context context, AttributeSet attrs, int defStyle) {
         this(context, attrs, defStyle, 0);
     }

     public NotificationMainView(Context context, AttributeSet attrs, int defStyle, int defStylRes) {
         super(context, attrs, defStyle, defStylRes);

         float outlineRadius = Themes.getDialogCornerRadius(context);

         mBackground = new GradientDrawable();
         mBackground.setColor(Themes.getAttrColor(context, R.attr.popupColorPrimary));
         mBackground.setCornerRadius(outlineRadius);
         setBackground(mBackground);

         mMaxElevation = getResources().getDimensionPixelSize(R.dimen.deep_shortcuts_elevation);
         setElevation(mMaxElevation);

         mMaxTransX = getResources().getDimensionPixelSize(R.dimen.notification_max_trans);
         mNotificationSpace = getResources().getDimensionPixelSize(R.dimen.notification_space);

         setClipToOutline(true);
         setOutlineProvider(new ViewOutlineProvider() {
             @Override
             public void getOutline(View view, Outline outline) {
                 outline.setRoundRect(mOutline, outlineRadius);
             }
         });
     }

     /**
      * Updates the header text.
      * @param notificationCount The number of notifications.
      */
     public void updateHeader(int notificationCount) {
         final String text;
         final int visibility;
         if (notificationCount <= 1) {
             text = "";
             visibility = View.INVISIBLE;
         } else {
             text = String.valueOf(notificationCount);
             visibility = View.VISIBLE;

         }
         mHeaderCount.setText(text);
         mHeaderCount.setVisibility(visibility);
     }

     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();

         ViewGroup textAndBackground = findViewById(R.id.text_and_background);
         mTitleView = textAndBackground.findViewById(R.id.title);
         mTextView = textAndBackground.findViewById(R.id.text);
         mIconView = findViewById(R.id.popup_item_icon);
         mHeaderCount = findViewById(R.id.notification_count);

         mHeader = findViewById(R.id.header);
         mMainView = findViewById(R.id.main_view);
     }

     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
         mOutline.set(0, 0, getWidth(), getHeight());
         invalidateOutline();
     }

     private void updateBackgroundColor(int color) {
         mBackgroundColor = color;
         mBackground.setColor(color);
         if (mNotificationInfo != null) {
             mIconView.setBackground(mNotificationInfo.getIconForBackground(getContext(),
                     mBackgroundColor));
         }
     }

     /**
      * Animates the background color to a new color.
      * @param color The color to change to.
      * @param animatorSetOut The AnimatorSet where we add the color animator to.
      */
     public void updateBackgroundColor(int color, AnimatorSet animatorSetOut) {
         int oldColor = mBackgroundColor;
         ValueAnimator colors = ValueAnimator.ofArgb(oldColor, color);
         colors.addUpdateListener(valueAnimator -> {
             int newColor = (int) valueAnimator.getAnimatedValue();
             updateBackgroundColor(newColor);
         });
         animatorSetOut.play(colors);
     }

     /**
      * Sets the content of this view, animating it after a new icon shifts up if necessary.
      */
     public void applyNotificationInfo(NotificationInfo notificationInfo) {
         mNotificationInfo = notificationInfo;
         if (notificationInfo == null) {
             return;
         }
         NotificationListener listener = NotificationListener.getInstanceIfConnected();
         if (listener != null) {
             listener.setNotificationsShown(new String[] {mNotificationInfo.notificationKey});
         }
         CharSequence title = mNotificationInfo.title;
         CharSequence text = mNotificationInfo.text;
         if (!TextUtils.isEmpty(title) && !TextUtils.isEmpty(text)) {
             mTitleView.setText(title.toString());
             mTextView.setText(text.toString());
         } else {
             mTitleView.setMaxLines(2);
             mTitleView.setText(TextUtils.isEmpty(title) ? text.toString() : title.toString());
             mTextView.setVisibility(GONE);
         }
         mIconView.setBackground(mNotificationInfo.getIconForBackground(getContext(),
                 mBackgroundColor));
         if (mNotificationInfo.intent != null) {
             setOnClickListener(mNotificationInfo);
         }

         // Add a stub ItemInfo so that logging populates the correct container and item types
         // instead of DEFAULT_CONTAINERTYPE and DEFAULT_ITEMTYPE, respectively.
         setTag(NOTIFICATION_ITEM_INFO);
     }

     /**
      * Sets the alpha of only the child views.
      */
     public void setContentAlpha(float alpha) {
         mHeader.setAlpha(alpha);
         mMainView.setAlpha(alpha);
     }

     /**
      * Sets the translation of only the child views.
      */
     public void setContentTranslationX(float transX) {
         mHeader.setTranslationX(transX);
         mMainView.setTranslationX(transX);
     }

     /**
      * Updates the alpha, content alpha, and elevation of this view.
      *
      * @param progress Range from [0, 1] or [-1, 0]
      *                 When 0: Full alpha
      *                 When 1/-1: zero alpha
      */
     public void onPrimaryDrag(float progress) {
         float absProgress = Math.abs(progress);
         final int width = getWidth();

         float min = PRIMARY_MIN_PROGRESS;
         float max = PRIMARY_MAX_PROGRESS;

         if (absProgress < min) {
             setAlpha(1f);
             setContentAlpha(1);
             setElevation(mMaxElevation);
         } else if (absProgress < max) {
             setAlpha(1f);
             setContentAlpha(mapToRange(absProgress, min, max, 1f, 0f, LINEAR));
             setElevation(Utilities.mapToRange(absProgress, min, max, mMaxElevation, 0, LINEAR));
         } else {
             setAlpha(mapToRange(absProgress, max, PRIMARY_GONE_PROGRESS, 1f, 0f, LINEAR));
             setContentAlpha(0f);
             setElevation(0f);
         }

         setTranslationX(width * progress);
     }

     /**
      * Updates the alpha, content alpha, elevation, and clipping of this view.
      * @param progress Range from [0, 1] or [-1, 0]
       *                 When 0: Smallest clipping, zero alpha
       *                 When 1/-1: Full clip, full alpha
      */
     public void onSecondaryDrag(float progress) {
         final float absProgress = Math.abs(progress);

         float min = SECONDARY_MIN_PROGRESS;
         float max = SECONDARY_MAX_PROGRESS;
         float contentMax = SECONDARY_CONTENT_MAX_PROGRESS;

         if (absProgress < min) {
             setAlpha(0f);
             setContentAlpha(0);
             setElevation(0f);
         } else if (absProgress < max) {
             setAlpha(mapToRange(absProgress, min, max, 0, 1f, LINEAR));
             setContentAlpha(0f);
             setElevation(0f);
         } else {
             setAlpha(1f);
             setContentAlpha(absProgress > contentMax
                     ? 1f
                     : mapToRange(absProgress, max, contentMax, 0, 1f, LINEAR));
             setElevation(Utilities.mapToRange(absProgress, max, 1, 0, mMaxElevation, LINEAR));
         }

         final int width = getWidth();
         int crop = (int) (width * absProgress);
         int space = (int) (absProgress > PRIMARY_GONE_PROGRESS
                 ? mapToRange(absProgress, PRIMARY_GONE_PROGRESS, 1f, mNotificationSpace, 0, LINEAR)
                 : mNotificationSpace);
         if (progress < 0) {
             mOutline.left = Math.max(0, getWidth() - crop + space);
             mOutline.right = getWidth();
         } else {
             mOutline.right = Math.min(getWidth(), crop - space);
             mOutline.left = 0;
         }

         float contentTransX = mMaxTransX * (1f - absProgress);
         setContentTranslationX(progress < 0
                 ? contentTransX
                 : -contentTransX);
         invalidateOutline();
     }

     public @Nullable NotificationInfo getNotificationInfo() {
         return mNotificationInfo;
     }

     public boolean canChildBeDismissed() {
         return mNotificationInfo != null && mNotificationInfo.dismissable;
     }

     public void onChildDismissed() {
         Launcher launcher = Launcher.getLauncher(getContext());
         launcher.getPopupDataProvider().cancelNotification(
                 mNotificationInfo.notificationKey);
         launcher.getStatsLogManager().logger().log(LAUNCHER_NOTIFICATION_DISMISSED);
     }
 }
	/*
	* 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.launcher3.notification;

	import static com.android.launcher3.Utilities.mapToRange;
	import static com.android.launcher3.anim.Interpolators.LINEAR;
	import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_NOTIFICATION_DISMISSED;

	import android.animation.AnimatorSet;
	import android.animation.ValueAnimator;
	import android.annotation.TargetApi;
	import android.content.Context;
	import android.graphics.Outline;
	import android.graphics.Rect;
	import android.graphics.drawable.GradientDrawable;
	import android.os.Build;
	import android.text.TextUtils;
	import android.util.AttributeSet;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.ViewOutlineProvider;
	import android.widget.LinearLayout;
	import android.widget.TextView;

	import androidx.annotation.Nullable;

	import com.android.launcher3.Launcher;
	import com.android.launcher3.R;
	import com.android.launcher3.Utilities;
	import com.android.launcher3.model.data.ItemInfo;
	import com.android.launcher3.util.Themes;

	/**
	* A {@link android.widget.FrameLayout} that contains a single notification,
	* e.g. icon + title + text.
	*/
	@TargetApi(Build.VERSION_CODES.N)
	public class NotificationMainView extends LinearLayout {

	// This is used only to track the notification view, so that it can be properly logged.
	public static final ItemInfo NOTIFICATION_ITEM_INFO = new ItemInfo();

	// Value when the primary notification main view will be gone (zero alpha).
	private static final float PRIMARY_GONE_PROGRESS = 0.7f;
	private static final float PRIMARY_MIN_PROGRESS = 0.40f;
	private static final float PRIMARY_MAX_PROGRESS = 0.60f;
	private static final float SECONDARY_MIN_PROGRESS = 0.30f;
	private static final float SECONDARY_MAX_PROGRESS = 0.50f;
	private static final float SECONDARY_CONTENT_MAX_PROGRESS = 0.6f;

	private NotificationInfo mNotificationInfo;
	private int mBackgroundColor;
	private TextView mTitleView;
	private TextView mTextView;
	private View mIconView;

	private View mHeader;
	private View mMainView;

	private TextView mHeaderCount;
	private final Rect mOutline = new Rect();

	// Space between notifications during swipe
	private final int mNotificationSpace;
	private final int mMaxTransX;
	private final int mMaxElevation;

	private final GradientDrawable mBackground;

	public NotificationMainView(Context context) {
	this(context, null, 0);
	}

	public NotificationMainView(Context context, AttributeSet attrs) {
	this(context, attrs, 0);
	}

	public NotificationMainView(Context context, AttributeSet attrs, int defStyle) {
	this(context, attrs, defStyle, 0);
	}

	public NotificationMainView(Context context, AttributeSet attrs, int defStyle, int defStylRes) {
	super(context, attrs, defStyle, defStylRes);

	float outlineRadius = Themes.getDialogCornerRadius(context);

	mBackground = new GradientDrawable();
	mBackground.setColor(Themes.getAttrColor(context, R.attr.popupColorPrimary));
	mBackground.setCornerRadius(outlineRadius);
	setBackground(mBackground);

	mMaxElevation = getResources().getDimensionPixelSize(R.dimen.deep_shortcuts_elevation);
	setElevation(mMaxElevation);

	mMaxTransX = getResources().getDimensionPixelSize(R.dimen.notification_max_trans);
	mNotificationSpace = getResources().getDimensionPixelSize(R.dimen.notification_space);

	setClipToOutline(true);
	setOutlineProvider(new ViewOutlineProvider() {
	@Override
	public void getOutline(View view, Outline outline) {
	outline.setRoundRect(mOutline, outlineRadius);
	}
	});
	}

	/**
	* Updates the header text.
	* @param notificationCount The number of notifications.
	*/
	public void updateHeader(int notificationCount) {
	final String text;
	final int visibility;
	if (notificationCount <= 1) {
	text = "";
	visibility = View.INVISIBLE;
	} else {
	text = String.valueOf(notificationCount);
	visibility = View.VISIBLE;

	}
	mHeaderCount.setText(text);
	mHeaderCount.setVisibility(visibility);
	}

	@Override
	protected void onFinishInflate() {
	super.onFinishInflate();

	ViewGroup textAndBackground = findViewById(R.id.text_and_background);
	mTitleView = textAndBackground.findViewById(R.id.title);
	mTextView = textAndBackground.findViewById(R.id.text);
	mIconView = findViewById(R.id.popup_item_icon);
	mHeaderCount = findViewById(R.id.notification_count);

	mHeader = findViewById(R.id.header);
	mMainView = findViewById(R.id.main_view);
	}

	@Override
	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
	super.onMeasure(widthMeasureSpec, heightMeasureSpec);
	mOutline.set(0, 0, getWidth(), getHeight());
	invalidateOutline();
	}

	private void updateBackgroundColor(int color) {
	mBackgroundColor = color;
	mBackground.setColor(color);
	if (mNotificationInfo != null) {
	mIconView.setBackground(mNotificationInfo.getIconForBackground(getContext(),
	mBackgroundColor));
	}
	}

	/**
	* Animates the background color to a new color.
	* @param color The color to change to.
	* @param animatorSetOut The AnimatorSet where we add the color animator to.
	*/
	public void updateBackgroundColor(int color, AnimatorSet animatorSetOut) {
	int oldColor = mBackgroundColor;
	ValueAnimator colors = ValueAnimator.ofArgb(oldColor, color);
	colors.addUpdateListener(valueAnimator -> {
	int newColor = (int) valueAnimator.getAnimatedValue();
	updateBackgroundColor(newColor);
	});
	animatorSetOut.play(colors);
	}

	/**
	* Sets the content of this view, animating it after a new icon shifts up if necessary.
	*/
	public void applyNotificationInfo(NotificationInfo notificationInfo) {
	mNotificationInfo = notificationInfo;
	if (notificationInfo == null) {
	return;
	}
	NotificationListener listener = NotificationListener.getInstanceIfConnected();
	if (listener != null) {
	listener.setNotificationsShown(new String[] {mNotificationInfo.notificationKey});
	}
	CharSequence title = mNotificationInfo.title;
	CharSequence text = mNotificationInfo.text;
	if (!TextUtils.isEmpty(title) && !TextUtils.isEmpty(text)) {
	mTitleView.setText(title.toString());
	mTextView.setText(text.toString());
	} else {
	mTitleView.setMaxLines(2);
	mTitleView.setText(TextUtils.isEmpty(title) ? text.toString() : title.toString());
	mTextView.setVisibility(GONE);
	}
	mIconView.setBackground(mNotificationInfo.getIconForBackground(getContext(),
	mBackgroundColor));
	if (mNotificationInfo.intent != null) {
	setOnClickListener(mNotificationInfo);
	}

	// Add a stub ItemInfo so that logging populates the correct container and item types
	// instead of DEFAULT_CONTAINERTYPE and DEFAULT_ITEMTYPE, respectively.
	setTag(NOTIFICATION_ITEM_INFO);
	}

	/**
	* Sets the alpha of only the child views.
	*/
	public void setContentAlpha(float alpha) {
	mHeader.setAlpha(alpha);
	mMainView.setAlpha(alpha);
	}

	/**
	* Sets the translation of only the child views.
	*/
	public void setContentTranslationX(float transX) {
	mHeader.setTranslationX(transX);
	mMainView.setTranslationX(transX);
	}

	/**
	* Updates the alpha, content alpha, and elevation of this view.
	*
	* @param progress Range from [0, 1] or [-1, 0]
	* When 0: Full alpha
	* When 1/-1: zero alpha
	*/
	public void onPrimaryDrag(float progress) {
	float absProgress = Math.abs(progress);
	final int width = getWidth();

	float min = PRIMARY_MIN_PROGRESS;
	float max = PRIMARY_MAX_PROGRESS;

	if (absProgress < min) {
	setAlpha(1f);
	setContentAlpha(1);
	setElevation(mMaxElevation);
	} else if (absProgress < max) {
	setAlpha(1f);
	setContentAlpha(mapToRange(absProgress, min, max, 1f, 0f, LINEAR));
	setElevation(Utilities.mapToRange(absProgress, min, max, mMaxElevation, 0, LINEAR));
	} else {
	setAlpha(mapToRange(absProgress, max, PRIMARY_GONE_PROGRESS, 1f, 0f, LINEAR));
	setContentAlpha(0f);
	setElevation(0f);
	}

	setTranslationX(width * progress);
	}

	/**
	* Updates the alpha, content alpha, elevation, and clipping of this view.
	* @param progress Range from [0, 1] or [-1, 0]
	* When 0: Smallest clipping, zero alpha
	* When 1/-1: Full clip, full alpha
	*/
	public void onSecondaryDrag(float progress) {
	final float absProgress = Math.abs(progress);

	float min = SECONDARY_MIN_PROGRESS;
	float max = SECONDARY_MAX_PROGRESS;
	float contentMax = SECONDARY_CONTENT_MAX_PROGRESS;

	if (absProgress < min) {
	setAlpha(0f);
	setContentAlpha(0);
	setElevation(0f);
	} else if (absProgress < max) {
	setAlpha(mapToRange(absProgress, min, max, 0, 1f, LINEAR));
	setContentAlpha(0f);
	setElevation(0f);
	} else {
	setAlpha(1f);
	setContentAlpha(absProgress > contentMax
	? 1f
	: mapToRange(absProgress, max, contentMax, 0, 1f, LINEAR));
	setElevation(Utilities.mapToRange(absProgress, max, 1, 0, mMaxElevation, LINEAR));
	}

	final int width = getWidth();
	int crop = (int) (width * absProgress);
	int space = (int) (absProgress > PRIMARY_GONE_PROGRESS
	? mapToRange(absProgress, PRIMARY_GONE_PROGRESS, 1f, mNotificationSpace, 0, LINEAR)
	: mNotificationSpace);
	if (progress < 0) {
	mOutline.left = Math.max(0, getWidth() - crop + space);
	mOutline.right = getWidth();
	} else {
	mOutline.right = Math.min(getWidth(), crop - space);
	mOutline.left = 0;
	}

	float contentTransX = mMaxTransX * (1f - absProgress);
	setContentTranslationX(progress < 0
	? contentTransX
	: -contentTransX);
	invalidateOutline();
	}

	public @Nullable NotificationInfo getNotificationInfo() {
	return mNotificationInfo;
	}

	public boolean canChildBeDismissed() {
	return mNotificationInfo != null && mNotificationInfo.dismissable;
	}

	public void onChildDismissed() {
	Launcher launcher = Launcher.getLauncher(getContext());
	launcher.getPopupDataProvider().cancelNotification(
	mNotificationInfo.notificationKey);
	launcher.getStatsLogManager().logger().log(LAUNCHER_NOTIFICATION_DISMISSED);
	}
	}