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/*
* Copyright (C) 2008 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;
import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_ICON_BADGED;
import android.annotation.TargetApi;
import android.app.ActivityManager;
import android.app.Person;
import android.app.WallpaperManager;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.LauncherActivityInfo;
import android.content.pm.LauncherApps;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ShortcutInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.LightingColorFilter;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.InsetDrawable;
import android.net.Uri;
import android.os.Build;
import android.os.DeadObjectException;
import android.os.Handler;
import android.os.Message;
import android.os.TransactionTooLargeException;
import android.provider.Settings;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.TextUtils;
import android.text.style.TtsSpan;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.animation.Interpolator;
import android.widget.LinearLayout;
import androidx.core.graphics.ColorUtils;
import androidx.core.os.BuildCompat;
import com.android.launcher3.dragndrop.FolderAdaptiveIcon;
import com.android.launcher3.graphics.GridCustomizationsProvider;
import com.android.launcher3.graphics.TintedDrawableSpan;
import com.android.launcher3.icons.BitmapInfo;
import com.android.launcher3.icons.FastBitmapDrawable;
import com.android.launcher3.icons.LauncherIcons;
import com.android.launcher3.icons.ShortcutCachingLogic;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.ItemInfoWithIcon;
import com.android.launcher3.pm.ShortcutConfigActivityInfo;
import com.android.launcher3.shortcuts.ShortcutKey;
import com.android.launcher3.shortcuts.ShortcutRequest;
import com.android.launcher3.util.IntArray;
import com.android.launcher3.util.PackageManagerHelper;
import com.android.launcher3.views.ActivityContext;
import com.android.launcher3.views.BaseDragLayer;
import com.android.launcher3.widget.PendingAddShortcutInfo;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import java.util.function.Consumer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Various utilities shared amongst the Launcher's classes.
*/
public final class Utilities {
private static final String TAG = "Launcher.Utilities";
private static final Pattern sTrimPattern =
Pattern.compile("^[\\s|\\p{javaSpaceChar}]*(.*)[\\s|\\p{javaSpaceChar}]*$");
private static final float[] sTmpFloatArray = new float[4];
private static final int[] sLoc0 = new int[2];
private static final int[] sLoc1 = new int[2];
private static final Matrix sMatrix = new Matrix();
private static final Matrix sInverseMatrix = new Matrix();
public static final String[] EMPTY_STRING_ARRAY = new String[0];
public static final Person[] EMPTY_PERSON_ARRAY = new Person[0];
public static final boolean ATLEAST_P = Build.VERSION.SDK_INT >= Build.VERSION_CODES.P;
public static final boolean ATLEAST_Q = Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q;
public static final boolean ATLEAST_R = Build.VERSION.SDK_INT >= Build.VERSION_CODES.R;
public static final boolean ATLEAST_S = BuildCompat.isAtLeastS()
|| Build.VERSION.SDK_INT >= Build.VERSION_CODES.S;
/**
* Set on a motion event dispatched from the nav bar. See {@link MotionEvent#setEdgeFlags(int)}.
*/
public static final int EDGE_NAV_BAR = 1 << 8;
/**
* Indicates if the device has a debug build. Should only be used to store additional info or
* add extra logging and not for changing the app behavior.
*/
public static final boolean IS_DEBUG_DEVICE =
Build.TYPE.toLowerCase(Locale.ROOT).contains("debug") ||
Build.TYPE.toLowerCase(Locale.ROOT).equals("eng");
/**
* Returns true if theme is dark.
*/
public static boolean isDarkTheme(Context context) {
Configuration configuration = context.getResources().getConfiguration();
int nightMode = configuration.uiMode & Configuration.UI_MODE_NIGHT_MASK;
return nightMode == Configuration.UI_MODE_NIGHT_YES;
}
public static boolean isDevelopersOptionsEnabled(Context context) {
return Settings.Global.getInt(context.getApplicationContext().getContentResolver(),
Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) != 0;
}
// An intent extra to indicate the horizontal scroll of the wallpaper.
public static final String EXTRA_WALLPAPER_OFFSET = "com.android.launcher3.WALLPAPER_OFFSET";
public static final String EXTRA_WALLPAPER_FLAVOR = "com.android.launcher3.WALLPAPER_FLAVOR";
// An intent extra to indicate the launch source by launcher.
public static final String EXTRA_WALLPAPER_LAUNCH_SOURCE =
"com.android.wallpaper.LAUNCH_SOURCE";
public static boolean IS_RUNNING_IN_TEST_HARNESS =
ActivityManager.isRunningInTestHarness();
public static void enableRunningInTestHarnessForTests() {
IS_RUNNING_IN_TEST_HARNESS = true;
}
public static boolean isPropertyEnabled(String propertyName) {
return Log.isLoggable(propertyName, Log.VERBOSE);
}
public static boolean existsStyleWallpapers(Context context) {
ResolveInfo ri = context.getPackageManager().resolveActivity(
PackageManagerHelper.getStyleWallpapersIntent(context), 0);
return ri != null;
}
/**
* Given a coordinate relative to the descendant, find the coordinate in a parent view's
* coordinates.
*
* @param descendant The descendant to which the passed coordinate is relative.
* @param ancestor The root view to make the coordinates relative to.
* @param coord The coordinate that we want mapped.
* @param includeRootScroll Whether or not to account for the scroll of the descendant:
* sometimes this is relevant as in a child's coordinates within the descendant.
* @return The factor by which this descendant is scaled relative to this DragLayer. Caution
* this scale factor is assumed to be equal in X and Y, and so if at any point this
* assumption fails, we will need to return a pair of scale factors.
*/
public static float getDescendantCoordRelativeToAncestor(
View descendant, View ancestor, float[] coord, boolean includeRootScroll) {
return getDescendantCoordRelativeToAncestor(descendant, ancestor, coord, includeRootScroll,
false);
}
/**
* Given a coordinate relative to the descendant, find the coordinate in a parent view's
* coordinates.
*
* @param descendant The descendant to which the passed coordinate is relative.
* @param ancestor The root view to make the coordinates relative to.
* @param coord The coordinate that we want mapped.
* @param includeRootScroll Whether or not to account for the scroll of the descendant:
* sometimes this is relevant as in a child's coordinates within the descendant.
* @param ignoreTransform If true, view transform is ignored
* @return The factor by which this descendant is scaled relative to this DragLayer. Caution
* this scale factor is assumed to be equal in X and Y, and so if at any point this
* assumption fails, we will need to return a pair of scale factors.
*/
public static float getDescendantCoordRelativeToAncestor(View descendant, View ancestor,
float[] coord, boolean includeRootScroll, boolean ignoreTransform) {
float scale = 1.0f;
View v = descendant;
while(v != ancestor && v != null) {
// For TextViews, scroll has a meaning which relates to the text position
// which is very strange... ignore the scroll.
if (v != descendant || includeRootScroll) {
offsetPoints(coord, -v.getScrollX(), -v.getScrollY());
}
if (!ignoreTransform) {
v.getMatrix().mapPoints(coord);
}
offsetPoints(coord, v.getLeft(), v.getTop());
scale *= v.getScaleX();
v = (View) v.getParent();
}
return scale;
}
/**
* Returns bounds for a child view of DragLayer, in drag layer coordinates.
*
* see {@link com.android.launcher3.dragndrop.DragLayer}.
*
* @param viewBounds Bounds of the view wanted in drag layer coordinates, relative to the view
* itself. eg. (0, 0, view.getWidth, view.getHeight)
* @param ignoreTransform If true, view transform is ignored
* @param outRect The out rect where we return the bounds of {@param view} in drag layer coords.
*/
public static void getBoundsForViewInDragLayer(BaseDragLayer dragLayer, View view,
Rect viewBounds, boolean ignoreTransform, float[] recycle, RectF outRect) {
float[] points = recycle == null ? new float[4] : recycle;
points[0] = viewBounds.left;
points[1] = viewBounds.top;
points[2] = viewBounds.right;
points[3] = viewBounds.bottom;
Utilities.getDescendantCoordRelativeToAncestor(view, dragLayer, points,
false, ignoreTransform);
outRect.set(
Math.min(points[0], points[2]),
Math.min(points[1], points[3]),
Math.max(points[0], points[2]),
Math.max(points[1], points[3]));
}
/**
* Inverse of {@link #getDescendantCoordRelativeToAncestor(View, View, float[], boolean)}.
*/
public static void mapCoordInSelfToDescendant(View descendant, View root, float[] coord) {
sMatrix.reset();
View v = descendant;
while(v != root) {
sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY());
sMatrix.postConcat(v.getMatrix());
sMatrix.postTranslate(v.getLeft(), v.getTop());
v = (View) v.getParent();
}
sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY());
sMatrix.invert(sInverseMatrix);
sInverseMatrix.mapPoints(coord);
}
/**
* Sets {@param out} to be same as {@param in} by rounding individual values
*/
public static void roundArray(float[] in, int[] out) {
for (int i = 0; i < in.length; i++) {
out[i] = Math.round(in[i]);
}
}
public static void offsetPoints(float[] points, float offsetX, float offsetY) {
for (int i = 0; i < points.length; i += 2) {
points[i] += offsetX;
points[i + 1] += offsetY;
}
}
/**
* Utility method to determine whether the given point, in local coordinates,
* is inside the view, where the area of the view is expanded by the slop factor.
* This method is called while processing touch-move events to determine if the event
* is still within the view.
*/
public static boolean pointInView(View v, float localX, float localY, float slop) {
return localX >= -slop && localY >= -slop && localX < (v.getWidth() + slop) &&
localY < (v.getHeight() + slop);
}
public static int[] getCenterDeltaInScreenSpace(View v0, View v1) {
v0.getLocationInWindow(sLoc0);
v1.getLocationInWindow(sLoc1);
sLoc0[0] += (v0.getMeasuredWidth() * v0.getScaleX()) / 2;
sLoc0[1] += (v0.getMeasuredHeight() * v0.getScaleY()) / 2;
sLoc1[0] += (v1.getMeasuredWidth() * v1.getScaleX()) / 2;
sLoc1[1] += (v1.getMeasuredHeight() * v1.getScaleY()) / 2;
return new int[] {sLoc1[0] - sLoc0[0], sLoc1[1] - sLoc0[1]};
}
/**
* Helper method to set rectOut with rectFSrc.
*/
public static void setRect(RectF rectFSrc, Rect rectOut) {
rectOut.left = (int) rectFSrc.left;
rectOut.top = (int) rectFSrc.top;
rectOut.right = (int) rectFSrc.right;
rectOut.bottom = (int) rectFSrc.bottom;
}
public static void scaleRectFAboutCenter(RectF r, float scale) {
scaleRectFAboutPivot(r, scale, r.centerX(), r.centerY());
}
public static void scaleRectFAboutPivot(RectF r, float scale, float px, float py) {
if (scale != 1.0f) {
r.offset(-px, -py);
r.left = r.left * scale;
r.top = r.top * scale ;
r.right = r.right * scale;
r.bottom = r.bottom * scale;
r.offset(px, py);
}
}
public static void scaleRectAboutCenter(Rect r, float scale) {
if (scale != 1.0f) {
int cx = r.centerX();
int cy = r.centerY();
r.offset(-cx, -cy);
scaleRect(r, scale);
r.offset(cx, cy);
}
}
public static void scaleRect(Rect r, float scale) {
if (scale != 1.0f) {
r.left = (int) (r.left * scale + 0.5f);
r.top = (int) (r.top * scale + 0.5f);
r.right = (int) (r.right * scale + 0.5f);
r.bottom = (int) (r.bottom * scale + 0.5f);
}
}
public static void insetRect(Rect r, Rect insets) {
r.left = Math.min(r.right, r.left + insets.left);
r.top = Math.min(r.bottom, r.top + insets.top);
r.right = Math.max(r.left, r.right - insets.right);
r.bottom = Math.max(r.top, r.bottom - insets.bottom);
}
public static float shrinkRect(Rect r, float scaleX, float scaleY) {
float scale = Math.min(Math.min(scaleX, scaleY), 1.0f);
if (scale < 1.0f) {
int deltaX = (int) (r.width() * (scaleX - scale) * 0.5f);
r.left += deltaX;
r.right -= deltaX;
int deltaY = (int) (r.height() * (scaleY - scale) * 0.5f);
r.top += deltaY;
r.bottom -= deltaY;
}
return scale;
}
/**
* Maps t from one range to another range.
* @param t The value to map.
* @param fromMin The lower bound of the range that t is being mapped from.
* @param fromMax The upper bound of the range that t is being mapped from.
* @param toMin The lower bound of the range that t is being mapped to.
* @param toMax The upper bound of the range that t is being mapped to.
* @return The mapped value of t.
*/
public static float mapToRange(float t, float fromMin, float fromMax, float toMin, float toMax,
Interpolator interpolator) {
if (fromMin == fromMax || toMin == toMax) {
Log.e(TAG, "mapToRange: range has 0 length");
return toMin;
}
float progress = getProgress(t, fromMin, fromMax);
return mapRange(interpolator.getInterpolation(progress), toMin, toMax);
}
/** Bounds t between a lower and upper bound and maps the result to a range. */
public static float mapBoundToRange(float t, float lowerBound, float upperBound,
float toMin, float toMax, Interpolator interpolator) {
return mapToRange(boundToRange(t, lowerBound, upperBound), lowerBound, upperBound,
toMin, toMax, interpolator);
}
public static float getProgress(float current, float min, float max) {
return Math.abs(current - min) / Math.abs(max - min);
}
public static float mapRange(float value, float min, float max) {
return min + (value * (max - min));
}
/**
* Bounds parameter to the range [0, 1]
*/
public static float saturate(float a) {
return boundToRange(a, 0, 1.0f);
}
/**
* Returns the compliment (1 - a) of the parameter.
*/
public static float comp(float a) {
return 1 - a;
}
/**
* Returns the "probabilistic or" of a and b. (a + b - ab).
* Useful beyond probability, can be used to combine two unit progresses for example.
*/
public static float or(float a, float b) {
float satA = saturate(a);
float satB = saturate(b);
return satA + satB - (satA * satB);
}
/**
* Trims the string, removing all whitespace at the beginning and end of the string.
* Non-breaking whitespaces are also removed.
*/
public static String trim(CharSequence s) {
if (s == null) {
return null;
}
// Just strip any sequence of whitespace or java space characters from the beginning and end
Matcher m = sTrimPattern.matcher(s);
return m.replaceAll("$1");
}
/**
* Calculates the height of a given string at a specific text size.
*/
public static int calculateTextHeight(float textSizePx) {
Paint p = new Paint();
p.setTextSize(textSizePx);
Paint.FontMetrics fm = p.getFontMetrics();
return (int) Math.ceil(fm.bottom - fm.top);
}
public static boolean isRtl(Resources res) {
return res.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
}
public static float dpiFromPx(float size, int densityDpi) {
float densityRatio = (float) densityDpi / DisplayMetrics.DENSITY_DEFAULT;
return (size / densityRatio);
}
/** Converts a dp value to pixels for the current device. */
public static int dpToPx(float dp) {
return (int) (dp * Resources.getSystem().getDisplayMetrics().density);
}
public static int pxFromSp(float size, DisplayMetrics metrics) {
return pxFromSp(size, metrics, 1f);
}
public static int pxFromSp(float size, DisplayMetrics metrics, float scale) {
return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
size, metrics) * scale);
}
public static String createDbSelectionQuery(String columnName, IntArray values) {
return String.format(Locale.ENGLISH, "%s IN (%s)", columnName, values.toConcatString());
}
public static boolean isBootCompleted() {
return "1".equals(getSystemProperty("sys.boot_completed", "1"));
}
public static String getSystemProperty(String property, String defaultValue) {
try {
Class clazz = Class.forName("android.os.SystemProperties");
Method getter = clazz.getDeclaredMethod("get", String.class);
String value = (String) getter.invoke(null, property);
if (!TextUtils.isEmpty(value)) {
return value;
}
} catch (Exception e) {
Log.d(TAG, "Unable to read system properties");
}
return defaultValue;
}
/**
* Ensures that a value is within given bounds. Specifically:
* If value is less than lowerBound, return lowerBound; else if value is greater than upperBound,
* return upperBound; else return value unchanged.
*/
public static int boundToRange(int value, int lowerBound, int upperBound) {
return Math.max(lowerBound, Math.min(value, upperBound));
}
/**
* @see #boundToRange(int, int, int).
*/
public static float boundToRange(float value, float lowerBound, float upperBound) {
return Math.max(lowerBound, Math.min(value, upperBound));
}
/**
* @see #boundToRange(int, int, int).
*/
public static long boundToRange(long value, long lowerBound, long upperBound) {
return Math.max(lowerBound, Math.min(value, upperBound));
}
/**
* Returns an intent for starting the default home activity
*/
public static Intent createHomeIntent() {
return new Intent(Intent.ACTION_MAIN)
.addCategory(Intent.CATEGORY_HOME)
.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
/**
* Wraps a message with a TTS span, so that a different message is spoken than
* what is getting displayed.
* @param msg original message
* @param ttsMsg message to be spoken
*/
public static CharSequence wrapForTts(CharSequence msg, String ttsMsg) {
SpannableString spanned = new SpannableString(msg);
spanned.setSpan(new TtsSpan.TextBuilder(ttsMsg).build(),
0, spanned.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
return spanned;
}
/**
* Prefixes a text with the provided icon
*/
public static CharSequence prefixTextWithIcon(Context context, int iconRes, CharSequence msg) {
// Update the hint to contain the icon.
// Prefix the original hint with two spaces. The first space gets replaced by the icon
// using span. The second space is used for a singe space character between the hint
// and the icon.
SpannableString spanned = new SpannableString(" " + msg);
spanned.setSpan(new TintedDrawableSpan(context, iconRes),
0, 1, Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
return spanned;
}
public static SharedPreferences getPrefs(Context context) {
// Use application context for shared preferences, so that we use a single cached instance
return context.getApplicationContext().getSharedPreferences(
LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE);
}
public static SharedPreferences getDevicePrefs(Context context) {
// Use application context for shared preferences, so that we use a single cached instance
return context.getApplicationContext().getSharedPreferences(
LauncherFiles.DEVICE_PREFERENCES_KEY, Context.MODE_PRIVATE);
}
public static boolean isWallpaperAllowed(Context context) {
return context.getSystemService(WallpaperManager.class).isSetWallpaperAllowed();
}
public static boolean isBinderSizeError(Exception e) {
return e.getCause() instanceof TransactionTooLargeException
|| e.getCause() instanceof DeadObjectException;
}
public static boolean isGridOptionsEnabled(Context context) {
return isComponentEnabled(context.getPackageManager(),
context.getPackageName(),
GridCustomizationsProvider.class.getName());
}
private static boolean isComponentEnabled(PackageManager pm, String pkgName, String clsName) {
ComponentName componentName = new ComponentName(pkgName, clsName);
int componentEnabledSetting = pm.getComponentEnabledSetting(componentName);
switch (componentEnabledSetting) {
case PackageManager.COMPONENT_ENABLED_STATE_DISABLED:
return false;
case PackageManager.COMPONENT_ENABLED_STATE_ENABLED:
return true;
case PackageManager.COMPONENT_ENABLED_STATE_DEFAULT:
default:
// We need to get the application info to get the component's default state
try {
PackageInfo packageInfo = pm.getPackageInfo(pkgName,
PackageManager.GET_PROVIDERS | PackageManager.GET_DISABLED_COMPONENTS);
if (packageInfo.providers != null) {
return Arrays.stream(packageInfo.providers).anyMatch(
pi -> pi.name.equals(clsName) && pi.isEnabled());
}
// the component is not declared in the AndroidManifest
return false;
} catch (PackageManager.NameNotFoundException e) {
// the package isn't installed on the device
return false;
}
}
}
/**
* Utility method to post a runnable on the handler, skipping the synchronization barriers.
*/
public static void postAsyncCallback(Handler handler, Runnable callback) {
Message msg = Message.obtain(handler, callback);
msg.setAsynchronous(true);
handler.sendMessage(msg);
}
/**
* Parses a string encoded using {@link #getPointString(int, int)}
*/
public static Point parsePoint(String point) {
String[] split = point.split(",");
return new Point(Integer.parseInt(split[0]), Integer.parseInt(split[1]));
}
/**
* Encodes a point to string to that it can be persisted atomically.
*/
public static String getPointString(int x, int y) {
return String.format(Locale.ENGLISH, "%d,%d", x, y);
}
public static void unregisterReceiverSafely(Context context, BroadcastReceiver receiver) {
try {
context.unregisterReceiver(receiver);
} catch (IllegalArgumentException e) {}
}
/**
* Returns the full drawable for info without any flattening or pre-processing.
*
* @param outObj this is set to the internal data associated with {@param info},
* eg {@link LauncherActivityInfo} or {@link ShortcutInfo}.
*/
public static Drawable getFullDrawable(Context context, ItemInfo info, int width, int height,
Object[] outObj) {
Drawable icon = loadFullDrawableWithoutTheme(context, info, width, height, outObj);
if (icon instanceof BitmapInfo.Extender) {
icon = ((BitmapInfo.Extender) icon).getThemedDrawable(context);
}
return icon;
}
private static Drawable loadFullDrawableWithoutTheme(Context context, ItemInfo info,
int width, int height, Object[] outObj) {
ActivityContext activity = ActivityContext.lookupContext(context);
LauncherAppState appState = LauncherAppState.getInstance(context);
if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
LauncherActivityInfo activityInfo = context.getSystemService(LauncherApps.class)
.resolveActivity(info.getIntent(), info.user);
outObj[0] = activityInfo;
return activityInfo == null ? null : LauncherAppState.getInstance(context)
.getIconProvider().getIcon(
activityInfo, activity.getDeviceProfile().inv.fillResIconDpi);
} else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
if (info instanceof PendingAddShortcutInfo) {
ShortcutConfigActivityInfo activityInfo =
((PendingAddShortcutInfo) info).activityInfo;
outObj[0] = activityInfo;
return activityInfo.getFullResIcon(appState.getIconCache());
}
List<ShortcutInfo> si = ShortcutKey.fromItemInfo(info)
.buildRequest(context)
.query(ShortcutRequest.ALL);
if (si.isEmpty()) {
return null;
} else {
outObj[0] = si.get(0);
return ShortcutCachingLogic.getIcon(context, si.get(0),
appState.getInvariantDeviceProfile().fillResIconDpi);
}
} else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_FOLDER) {
FolderAdaptiveIcon icon = FolderAdaptiveIcon.createFolderAdaptiveIcon(
activity, info.id, new Point(width, height));
if (icon == null) {
return null;
}
outObj[0] = icon;
return icon;
} else {
return null;
}
}
/**
* For apps icons and shortcut icons that have badges, this method creates a drawable that can
* later on be rendered on top of the layers for the badges. For app icons, work profile badges
* can only be applied. For deep shortcuts, when dragged from the pop up container, there's no
* badge. When dragged from workspace or folder, it may contain app AND/OR work profile badge
**/
@TargetApi(Build.VERSION_CODES.O)
public static Drawable getBadge(Context context, ItemInfo info, Object obj) {
LauncherAppState appState = LauncherAppState.getInstance(context);
int iconSize = appState.getInvariantDeviceProfile().iconBitmapSize;
if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
boolean iconBadged = (info instanceof ItemInfoWithIcon)
&& (((ItemInfoWithIcon) info).runtimeStatusFlags & FLAG_ICON_BADGED) > 0;
if ((info.id == ItemInfo.NO_ID && !iconBadged)
|| !(obj instanceof ShortcutInfo)) {
// The item is not yet added on home screen.
return new FixedSizeEmptyDrawable(iconSize);
}
ShortcutInfo si = (ShortcutInfo) obj;
Bitmap badge = LauncherAppState.getInstance(appState.getContext())
.getIconCache().getShortcutInfoBadge(si).icon;
float badgeSize = LauncherIcons.getBadgeSizeForIconSize(iconSize);
float insetFraction = (iconSize - badgeSize) / iconSize;
return new InsetDrawable(new FastBitmapDrawable(badge),
insetFraction, insetFraction, 0, 0);
} else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_FOLDER) {
return ((FolderAdaptiveIcon) obj).getBadge();
} else {
return context.getPackageManager()
.getUserBadgedIcon(new FixedSizeEmptyDrawable(iconSize), info.user);
}
}
/**
* @return true is the extra is either null or is of type {@param type}
*/
public static boolean isValidExtraType(Intent intent, String key, Class type) {
Object extra = intent.getParcelableExtra(key);
return extra == null || type.isInstance(extra);
}
public static float squaredHypot(float x, float y) {
return x * x + y * y;
}
public static float squaredTouchSlop(Context context) {
float slop = ViewConfiguration.get(context).getScaledTouchSlop();
return slop * slop;
}
/**
* Helper method to create a content provider
*/
public static ContentObserver newContentObserver(Handler handler, Consumer<Uri> command) {
return new ContentObserver(handler) {
@Override
public void onChange(boolean selfChange, Uri uri) {
command.accept(uri);
}
};
}
/**
* Compares the ratio of two quantities and returns whether that ratio is greater than the
* provided bound. Order of quantities does not matter. Bound should be a decimal representation
* of a percentage.
*/
public static boolean isRelativePercentDifferenceGreaterThan(float first, float second,
float bound) {
return (Math.abs(first - second) / Math.abs((first + second) / 2.0f)) > bound;
}
/**
* Rotates `inOutBounds` by `delta` 90-degree increments. Rotation is visually CCW. Parent
* sizes represent the "space" that will rotate carrying inOutBounds along with it to determine
* the final bounds.
*/
public static void rotateBounds(Rect inOutBounds, int parentWidth, int parentHeight,
int delta) {
int rdelta = ((delta % 4) + 4) % 4;
int origLeft = inOutBounds.left;
switch (rdelta) {
case 0:
return;
case 1:
inOutBounds.left = inOutBounds.top;
inOutBounds.top = parentWidth - inOutBounds.right;
inOutBounds.right = inOutBounds.bottom;
inOutBounds.bottom = parentWidth - origLeft;
return;
case 2:
inOutBounds.left = parentWidth - inOutBounds.right;
inOutBounds.right = parentWidth - origLeft;
return;
case 3:
inOutBounds.left = parentHeight - inOutBounds.bottom;
inOutBounds.bottom = inOutBounds.right;
inOutBounds.right = parentHeight - inOutBounds.top;
inOutBounds.top = origLeft;
return;
}
}
/**
* Make a color filter that blends a color into the destination based on a scalable amout.
*
* @param color to blend in.
* @param tintAmount [0-1] 0 no tinting, 1 full color.
* @return ColorFilter for tinting, or {@code null} if no filter is needed.
*/
public static ColorFilter makeColorTintingColorFilter(int color, float tintAmount) {
if (tintAmount == 0f) {
return null;
}
return new LightingColorFilter(
// This isn't blending in white, its making a multiplication mask for the base color
ColorUtils.blendARGB(Color.WHITE, 0, tintAmount),
ColorUtils.blendARGB(0, color, tintAmount));
}
/**
* Sets start margin on the provided {@param view} to be {@param margin}.
* Assumes {@param view} is a child of {@link LinearLayout}
*/
public static void setStartMarginForView(View view, int margin) {
LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) view.getLayoutParams();
lp.setMarginStart(margin);
view.setLayoutParams(lp);
}
private static class FixedSizeEmptyDrawable extends ColorDrawable {
private final int mSize;
public FixedSizeEmptyDrawable(int size) {
super(Color.TRANSPARENT);
mSize = size;
}
@Override
public int getIntrinsicHeight() {
return mSize;
}
@Override
public int getIntrinsicWidth() {
return mSize;
}
}
}