Sunny Goyal
e1483fb1cd
Launcher already scales the bitmap during the icon creaiton. The badging should be done based on the actual size Bug: 26345646 Change-Id: I1b1f7ac736322ba10db9083d602eec221b99687a
831 lines
32 KiB
Java
831 lines
32 KiB
Java
/*
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* Copyright (C) 2008 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.launcher3;
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import android.annotation.TargetApi;
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import android.app.Activity;
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import android.app.SearchManager;
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import android.appwidget.AppWidgetManager;
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import android.appwidget.AppWidgetProviderInfo;
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import android.content.ActivityNotFoundException;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.content.pm.ResolveInfo;
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import android.content.res.Resources;
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import android.database.Cursor;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Matrix;
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import android.graphics.Paint;
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import android.graphics.PaintFlagsDrawFilter;
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import android.graphics.Rect;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.graphics.drawable.PaintDrawable;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.PowerManager;
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import android.os.Process;
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import android.text.Spannable;
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import android.text.SpannableString;
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import android.text.TextUtils;
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import android.text.style.TtsSpan;
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import android.util.DisplayMetrics;
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import android.util.Log;
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import android.util.Pair;
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import android.util.SparseArray;
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import android.util.TypedValue;
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import android.view.View;
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import android.widget.Toast;
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import com.android.launcher3.compat.UserHandleCompat;
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import com.android.launcher3.config.FeatureFlags;
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import com.android.launcher3.util.IconNormalizer;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Locale;
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import java.util.Set;
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import java.util.concurrent.Executor;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Various utilities shared amongst the Launcher's classes.
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*/
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public final class Utilities {
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private static final String TAG = "Launcher.Utilities";
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private static final Rect sOldBounds = new Rect();
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private static final Canvas sCanvas = new Canvas();
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private static final Pattern sTrimPattern =
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Pattern.compile("^[\\s|\\p{javaSpaceChar}]*(.*)[\\s|\\p{javaSpaceChar}]*$");
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static {
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sCanvas.setDrawFilter(new PaintFlagsDrawFilter(Paint.DITHER_FLAG,
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Paint.FILTER_BITMAP_FLAG));
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}
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static int sColors[] = { 0xffff0000, 0xff00ff00, 0xff0000ff };
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static int sColorIndex = 0;
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private static final int[] sLoc0 = new int[2];
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private static final int[] sLoc1 = new int[2];
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// TODO: use Build.VERSION_CODES when available
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public static final boolean ATLEAST_MARSHMALLOW = Build.VERSION.SDK_INT >= 23;
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public static final boolean ATLEAST_LOLLIPOP_MR1 =
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Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
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public static final boolean ATLEAST_LOLLIPOP =
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Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
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public static final boolean ATLEAST_KITKAT =
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Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
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public static final boolean ATLEAST_JB_MR1 =
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Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1;
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public static final boolean ATLEAST_JB_MR2 =
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Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2;
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// These values are same as that in {@link AsyncTask}.
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private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
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private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
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private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
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private static final int KEEP_ALIVE = 1;
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/**
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* An {@link Executor} to be used with async task with no limit on the queue size.
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*/
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public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor(
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CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,
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TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>());
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// To turn on these properties, type
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// adb shell setprop log.tag.PROPERTY_NAME [VERBOSE | SUPPRESS]
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private static final String FORCE_ENABLE_ROTATION_PROPERTY = "launcher_force_rotate";
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private static boolean sForceEnableRotation = isPropertyEnabled(FORCE_ENABLE_ROTATION_PROPERTY);
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public static final String ALLOW_ROTATION_PREFERENCE_KEY = "pref_allowRotation";
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public static boolean isPropertyEnabled(String propertyName) {
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return Log.isLoggable(propertyName, Log.VERBOSE);
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}
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public static boolean isAllowRotationPrefEnabled(Context context, boolean multiProcess) {
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SharedPreferences sharedPrefs = context.getSharedPreferences(
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LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE | (multiProcess ?
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Context.MODE_MULTI_PROCESS : 0));
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boolean allowRotationPref = sharedPrefs.getBoolean(ALLOW_ROTATION_PREFERENCE_KEY, false);
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return sForceEnableRotation || allowRotationPref;
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}
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public static boolean isRotationAllowedForDevice(Context context) {
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return sForceEnableRotation || context.getResources().getBoolean(R.bool.allow_rotation);
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}
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public static Bitmap createIconBitmap(Cursor c, int iconIndex, Context context) {
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byte[] data = c.getBlob(iconIndex);
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try {
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return createIconBitmap(BitmapFactory.decodeByteArray(data, 0, data.length), context);
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} catch (Exception e) {
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return null;
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}
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}
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/**
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* Returns a bitmap suitable for the all apps view. If the package or the resource do not
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* exist, it returns null.
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*/
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public static Bitmap createIconBitmap(String packageName, String resourceName,
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Context context) {
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PackageManager packageManager = context.getPackageManager();
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// the resource
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try {
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Resources resources = packageManager.getResourcesForApplication(packageName);
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if (resources != null) {
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final int id = resources.getIdentifier(resourceName, null, null);
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return createIconBitmap(
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resources.getDrawableForDensity(id, LauncherAppState.getInstance()
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.getInvariantDeviceProfile().fillResIconDpi), context);
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}
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} catch (Exception e) {
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// Icon not found.
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}
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return null;
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}
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private static int getIconBitmapSize() {
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return LauncherAppState.getInstance().getInvariantDeviceProfile().iconBitmapSize;
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}
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/**
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* Returns a bitmap which is of the appropriate size to be displayed as an icon
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*/
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public static Bitmap createIconBitmap(Bitmap icon, Context context) {
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final int iconBitmapSize = getIconBitmapSize();
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if (iconBitmapSize == icon.getWidth() && iconBitmapSize == icon.getHeight()) {
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return icon;
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}
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return createIconBitmap(new BitmapDrawable(context.getResources(), icon), context);
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}
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/**
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* Returns a bitmap suitable for the all apps view. The icon is badged for {@param user}.
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* The bitmap is also visually normalized with other icons.
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*/
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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public static Bitmap createBadgedIconBitmap(
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Drawable icon, UserHandleCompat user, Context context) {
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float scale = FeatureFlags.LAUNCHER3_ICON_NORMALIZATION ?
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IconNormalizer.getInstance().getScale(icon) : 1;
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Bitmap bitmap = createIconBitmap(icon, context, scale);
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if (Utilities.ATLEAST_LOLLIPOP && user != null
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&& !UserHandleCompat.myUserHandle().equals(user)) {
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BitmapDrawable drawable = new FixedSizeBitmapDrawable(bitmap);
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Drawable badged = context.getPackageManager().getUserBadgedIcon(
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drawable, user.getUser());
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if (badged instanceof BitmapDrawable) {
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return ((BitmapDrawable) badged).getBitmap();
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} else {
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return createIconBitmap(badged, context);
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}
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} else {
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return bitmap;
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}
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}
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/**
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* Returns a bitmap suitable for the all apps view.
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*/
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public static Bitmap createIconBitmap(Drawable icon, Context context) {
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return createIconBitmap(icon, context, 1.0f /* scale */);
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}
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/**
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* @param scale the scale to apply before drawing {@param icon} on the canvas
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*/
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public static Bitmap createIconBitmap(Drawable icon, Context context, float scale) {
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synchronized (sCanvas) {
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final int iconBitmapSize = getIconBitmapSize();
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int width = iconBitmapSize;
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int height = iconBitmapSize;
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if (icon instanceof PaintDrawable) {
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PaintDrawable painter = (PaintDrawable) icon;
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painter.setIntrinsicWidth(width);
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painter.setIntrinsicHeight(height);
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} else if (icon instanceof BitmapDrawable) {
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// Ensure the bitmap has a density.
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BitmapDrawable bitmapDrawable = (BitmapDrawable) icon;
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Bitmap bitmap = bitmapDrawable.getBitmap();
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if (bitmap != null && bitmap.getDensity() == Bitmap.DENSITY_NONE) {
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bitmapDrawable.setTargetDensity(context.getResources().getDisplayMetrics());
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}
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}
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int sourceWidth = icon.getIntrinsicWidth();
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int sourceHeight = icon.getIntrinsicHeight();
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if (sourceWidth > 0 && sourceHeight > 0) {
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// Scale the icon proportionally to the icon dimensions
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final float ratio = (float) sourceWidth / sourceHeight;
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if (sourceWidth > sourceHeight) {
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height = (int) (width / ratio);
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} else if (sourceHeight > sourceWidth) {
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width = (int) (height * ratio);
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}
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}
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// no intrinsic size --> use default size
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int textureWidth = iconBitmapSize;
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int textureHeight = iconBitmapSize;
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final Bitmap bitmap = Bitmap.createBitmap(textureWidth, textureHeight,
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Bitmap.Config.ARGB_8888);
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final Canvas canvas = sCanvas;
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canvas.setBitmap(bitmap);
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final int left = (textureWidth-width) / 2;
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final int top = (textureHeight-height) / 2;
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@SuppressWarnings("all") // suppress dead code warning
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final boolean debug = false;
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if (debug) {
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// draw a big box for the icon for debugging
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canvas.drawColor(sColors[sColorIndex]);
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if (++sColorIndex >= sColors.length) sColorIndex = 0;
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Paint debugPaint = new Paint();
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debugPaint.setColor(0xffcccc00);
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canvas.drawRect(left, top, left+width, top+height, debugPaint);
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}
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sOldBounds.set(icon.getBounds());
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icon.setBounds(left, top, left+width, top+height);
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canvas.save(Canvas.MATRIX_SAVE_FLAG);
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canvas.scale(scale, scale, textureWidth / 2, textureHeight / 2);
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icon.draw(canvas);
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canvas.restore();
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icon.setBounds(sOldBounds);
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canvas.setBitmap(null);
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return bitmap;
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}
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}
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/**
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* Given a coordinate relative to the descendant, find the coordinate in a parent view's
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* coordinates.
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*
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* @param descendant The descendant to which the passed coordinate is relative.
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* @param root The root view to make the coordinates relative to.
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* @param coord The coordinate that we want mapped.
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* @param includeRootScroll Whether or not to account for the scroll of the descendant:
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* sometimes this is relevant as in a child's coordinates within the descendant.
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* @return The factor by which this descendant is scaled relative to this DragLayer. Caution
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* this scale factor is assumed to be equal in X and Y, and so if at any point this
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* assumption fails, we will need to return a pair of scale factors.
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*/
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public static float getDescendantCoordRelativeToParent(View descendant, View root,
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int[] coord, boolean includeRootScroll) {
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ArrayList<View> ancestorChain = new ArrayList<View>();
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float[] pt = {coord[0], coord[1]};
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View v = descendant;
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while(v != root && v != null) {
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ancestorChain.add(v);
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v = (View) v.getParent();
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}
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ancestorChain.add(root);
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float scale = 1.0f;
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int count = ancestorChain.size();
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for (int i = 0; i < count; i++) {
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View v0 = ancestorChain.get(i);
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// For TextViews, scroll has a meaning which relates to the text position
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// which is very strange... ignore the scroll.
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if (v0 != descendant || includeRootScroll) {
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pt[0] -= v0.getScrollX();
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pt[1] -= v0.getScrollY();
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}
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v0.getMatrix().mapPoints(pt);
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pt[0] += v0.getLeft();
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pt[1] += v0.getTop();
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scale *= v0.getScaleX();
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}
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coord[0] = (int) Math.round(pt[0]);
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coord[1] = (int) Math.round(pt[1]);
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return scale;
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}
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/**
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* Inverse of {@link #getDescendantCoordRelativeToParent(View, View, int[], boolean)}.
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*/
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public static float mapCoordInSelfToDescendent(View descendant, View root,
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int[] coord) {
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ArrayList<View> ancestorChain = new ArrayList<View>();
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float[] pt = {coord[0], coord[1]};
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View v = descendant;
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while(v != root) {
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ancestorChain.add(v);
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v = (View) v.getParent();
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}
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ancestorChain.add(root);
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float scale = 1.0f;
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Matrix inverse = new Matrix();
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int count = ancestorChain.size();
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for (int i = count - 1; i >= 0; i--) {
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View ancestor = ancestorChain.get(i);
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View next = i > 0 ? ancestorChain.get(i-1) : null;
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pt[0] += ancestor.getScrollX();
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pt[1] += ancestor.getScrollY();
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if (next != null) {
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pt[0] -= next.getLeft();
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pt[1] -= next.getTop();
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next.getMatrix().invert(inverse);
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inverse.mapPoints(pt);
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scale *= next.getScaleX();
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}
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}
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coord[0] = (int) Math.round(pt[0]);
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coord[1] = (int) Math.round(pt[1]);
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return scale;
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}
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/**
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* Utility method to determine whether the given point, in local coordinates,
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* is inside the view, where the area of the view is expanded by the slop factor.
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* This method is called while processing touch-move events to determine if the event
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* is still within the view.
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*/
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public static boolean pointInView(View v, float localX, float localY, float slop) {
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return localX >= -slop && localY >= -slop && localX < (v.getWidth() + slop) &&
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localY < (v.getHeight() + slop);
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}
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public static void scaleRect(Rect r, float scale) {
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if (scale != 1.0f) {
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r.left = (int) (r.left * scale + 0.5f);
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r.top = (int) (r.top * scale + 0.5f);
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r.right = (int) (r.right * scale + 0.5f);
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r.bottom = (int) (r.bottom * scale + 0.5f);
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}
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}
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public static int[] getCenterDeltaInScreenSpace(View v0, View v1, int[] delta) {
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v0.getLocationInWindow(sLoc0);
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v1.getLocationInWindow(sLoc1);
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sLoc0[0] += (v0.getMeasuredWidth() * v0.getScaleX()) / 2;
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sLoc0[1] += (v0.getMeasuredHeight() * v0.getScaleY()) / 2;
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sLoc1[0] += (v1.getMeasuredWidth() * v1.getScaleX()) / 2;
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sLoc1[1] += (v1.getMeasuredHeight() * v1.getScaleY()) / 2;
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if (delta == null) {
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delta = new int[2];
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}
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delta[0] = sLoc1[0] - sLoc0[0];
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delta[1] = sLoc1[1] - sLoc0[1];
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return delta;
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}
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public static void scaleRectAboutCenter(Rect r, float scale) {
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int cx = r.centerX();
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int cy = r.centerY();
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r.offset(-cx, -cy);
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Utilities.scaleRect(r, scale);
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r.offset(cx, cy);
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}
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public static void startActivityForResultSafely(
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Activity activity, Intent intent, int requestCode) {
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try {
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activity.startActivityForResult(intent, requestCode);
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} catch (ActivityNotFoundException e) {
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Toast.makeText(activity, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
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} catch (SecurityException e) {
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Toast.makeText(activity, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
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Log.e(TAG, "Launcher does not have the permission to launch " + intent +
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". Make sure to create a MAIN intent-filter for the corresponding activity " +
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"or use the exported attribute for this activity.", e);
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}
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}
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static boolean isSystemApp(Context context, Intent intent) {
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PackageManager pm = context.getPackageManager();
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ComponentName cn = intent.getComponent();
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String packageName = null;
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if (cn == null) {
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ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
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if ((info != null) && (info.activityInfo != null)) {
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packageName = info.activityInfo.packageName;
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}
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} else {
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packageName = cn.getPackageName();
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}
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if (packageName != null) {
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try {
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PackageInfo info = pm.getPackageInfo(packageName, 0);
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return (info != null) && (info.applicationInfo != null) &&
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((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
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} catch (NameNotFoundException e) {
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return false;
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}
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} else {
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return false;
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}
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}
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/**
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* This picks a dominant color, looking for high-saturation, high-value, repeated hues.
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* @param bitmap The bitmap to scan
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* @param samples The approximate max number of samples to use.
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*/
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static int findDominantColorByHue(Bitmap bitmap, int samples) {
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final int height = bitmap.getHeight();
|
|
final int width = bitmap.getWidth();
|
|
int sampleStride = (int) Math.sqrt((height * width) / samples);
|
|
if (sampleStride < 1) {
|
|
sampleStride = 1;
|
|
}
|
|
|
|
// This is an out-param, for getting the hsv values for an rgb
|
|
float[] hsv = new float[3];
|
|
|
|
// First get the best hue, by creating a histogram over 360 hue buckets,
|
|
// where each pixel contributes a score weighted by saturation, value, and alpha.
|
|
float[] hueScoreHistogram = new float[360];
|
|
float highScore = -1;
|
|
int bestHue = -1;
|
|
|
|
for (int y = 0; y < height; y += sampleStride) {
|
|
for (int x = 0; x < width; x += sampleStride) {
|
|
int argb = bitmap.getPixel(x, y);
|
|
int alpha = 0xFF & (argb >> 24);
|
|
if (alpha < 0x80) {
|
|
// Drop mostly-transparent pixels.
|
|
continue;
|
|
}
|
|
// Remove the alpha channel.
|
|
int rgb = argb | 0xFF000000;
|
|
Color.colorToHSV(rgb, hsv);
|
|
// Bucket colors by the 360 integer hues.
|
|
int hue = (int) hsv[0];
|
|
if (hue < 0 || hue >= hueScoreHistogram.length) {
|
|
// Defensively avoid array bounds violations.
|
|
continue;
|
|
}
|
|
float score = hsv[1] * hsv[2];
|
|
hueScoreHistogram[hue] += score;
|
|
if (hueScoreHistogram[hue] > highScore) {
|
|
highScore = hueScoreHistogram[hue];
|
|
bestHue = hue;
|
|
}
|
|
}
|
|
}
|
|
|
|
SparseArray<Float> rgbScores = new SparseArray<Float>();
|
|
int bestColor = 0xff000000;
|
|
highScore = -1;
|
|
// Go back over the RGB colors that match the winning hue,
|
|
// creating a histogram of weighted s*v scores, for up to 100*100 [s,v] buckets.
|
|
// The highest-scoring RGB color wins.
|
|
for (int y = 0; y < height; y += sampleStride) {
|
|
for (int x = 0; x < width; x += sampleStride) {
|
|
int rgb = bitmap.getPixel(x, y) | 0xff000000;
|
|
Color.colorToHSV(rgb, hsv);
|
|
int hue = (int) hsv[0];
|
|
if (hue == bestHue) {
|
|
float s = hsv[1];
|
|
float v = hsv[2];
|
|
int bucket = (int) (s * 100) + (int) (v * 10000);
|
|
// Score by cumulative saturation * value.
|
|
float score = s * v;
|
|
Float oldTotal = rgbScores.get(bucket);
|
|
float newTotal = oldTotal == null ? score : oldTotal + score;
|
|
rgbScores.put(bucket, newTotal);
|
|
if (newTotal > highScore) {
|
|
highScore = newTotal;
|
|
// All the colors in the winning bucket are very similar. Last in wins.
|
|
bestColor = rgb;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return bestColor;
|
|
}
|
|
|
|
/*
|
|
* Finds a system apk which had a broadcast receiver listening to a particular action.
|
|
* @param action intent action used to find the apk
|
|
* @return a pair of apk package name and the resources.
|
|
*/
|
|
static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
|
|
final Intent intent = new Intent(action);
|
|
for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
|
|
if (info.activityInfo != null &&
|
|
(info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
|
|
final String packageName = info.activityInfo.packageName;
|
|
try {
|
|
final Resources res = pm.getResourcesForApplication(packageName);
|
|
return Pair.create(packageName, res);
|
|
} catch (NameNotFoundException e) {
|
|
Log.w(TAG, "Failed to find resources for " + packageName);
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
@TargetApi(Build.VERSION_CODES.KITKAT)
|
|
public static boolean isViewAttachedToWindow(View v) {
|
|
if (ATLEAST_KITKAT) {
|
|
return v.isAttachedToWindow();
|
|
} else {
|
|
// A proxy call which returns null, if the view is not attached to the window.
|
|
return v.getKeyDispatcherState() != null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns a widget with category {@link AppWidgetProviderInfo#WIDGET_CATEGORY_SEARCHBOX}
|
|
* provided by the same package which is set to be global search activity.
|
|
* If widgetCategory is not supported, or no such widget is found, returns the first widget
|
|
* provided by the package.
|
|
*/
|
|
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
|
|
public static AppWidgetProviderInfo getSearchWidgetProvider(Context context) {
|
|
SearchManager searchManager =
|
|
(SearchManager) context.getSystemService(Context.SEARCH_SERVICE);
|
|
ComponentName searchComponent = searchManager.getGlobalSearchActivity();
|
|
if (searchComponent == null) return null;
|
|
String providerPkg = searchComponent.getPackageName();
|
|
|
|
AppWidgetProviderInfo defaultWidgetForSearchPackage = null;
|
|
|
|
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
|
|
for (AppWidgetProviderInfo info : appWidgetManager.getInstalledProviders()) {
|
|
if (info.provider.getPackageName().equals(providerPkg)) {
|
|
if (ATLEAST_JB_MR1) {
|
|
if ((info.widgetCategory & AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX) != 0) {
|
|
return info;
|
|
} else if (defaultWidgetForSearchPackage == null) {
|
|
defaultWidgetForSearchPackage = info;
|
|
}
|
|
} else {
|
|
return info;
|
|
}
|
|
}
|
|
}
|
|
return defaultWidgetForSearchPackage;
|
|
}
|
|
|
|
/**
|
|
* Compresses the bitmap to a byte array for serialization.
|
|
*/
|
|
public static byte[] flattenBitmap(Bitmap bitmap) {
|
|
// Try go guesstimate how much space the icon will take when serialized
|
|
// to avoid unnecessary allocations/copies during the write.
|
|
int size = bitmap.getWidth() * bitmap.getHeight() * 4;
|
|
ByteArrayOutputStream out = new ByteArrayOutputStream(size);
|
|
try {
|
|
bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
|
|
out.flush();
|
|
out.close();
|
|
return out.toByteArray();
|
|
} catch (IOException e) {
|
|
Log.w(TAG, "Could not write bitmap");
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Find the first vacant cell, if there is one.
|
|
*
|
|
* @param vacant Holds the x and y coordinate of the vacant cell
|
|
* @param spanX Horizontal cell span.
|
|
* @param spanY Vertical cell span.
|
|
*
|
|
* @return true if a vacant cell was found
|
|
*/
|
|
public static boolean findVacantCell(int[] vacant, int spanX, int spanY,
|
|
int xCount, int yCount, boolean[][] occupied) {
|
|
|
|
for (int y = 0; (y + spanY) <= yCount; y++) {
|
|
for (int x = 0; (x + spanX) <= xCount; x++) {
|
|
boolean available = !occupied[x][y];
|
|
out: for (int i = x; i < x + spanX; i++) {
|
|
for (int j = y; j < y + spanY; j++) {
|
|
available = available && !occupied[i][j];
|
|
if (!available) break out;
|
|
}
|
|
}
|
|
|
|
if (available) {
|
|
vacant[0] = x;
|
|
vacant[1] = y;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 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 float calculateTextHeight(float textSizePx) {
|
|
Paint p = new Paint();
|
|
p.setTextSize(textSizePx);
|
|
Paint.FontMetrics fm = p.getFontMetrics();
|
|
return -fm.top + fm.bottom;
|
|
}
|
|
|
|
/**
|
|
* Convenience println with multiple args.
|
|
*/
|
|
public static void println(String key, Object... args) {
|
|
StringBuilder b = new StringBuilder();
|
|
b.append(key);
|
|
b.append(": ");
|
|
boolean isFirstArgument = true;
|
|
for (Object arg : args) {
|
|
if (isFirstArgument) {
|
|
isFirstArgument = false;
|
|
} else {
|
|
b.append(", ");
|
|
}
|
|
b.append(arg);
|
|
}
|
|
System.out.println(b.toString());
|
|
}
|
|
|
|
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
|
|
public static boolean isRtl(Resources res) {
|
|
return ATLEAST_JB_MR1 &&
|
|
(res.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL);
|
|
}
|
|
|
|
public static void assertWorkerThread() {
|
|
if (LauncherAppState.isDogfoodBuild() &&
|
|
(LauncherModel.sWorkerThread.getThreadId() != Process.myTid())) {
|
|
throw new IllegalStateException();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns true if the intent is a valid launch intent for a launcher activity of an app.
|
|
* This is used to identify shortcuts which are different from the ones exposed by the
|
|
* applications' manifest file.
|
|
*
|
|
* @param launchIntent The intent that will be launched when the shortcut is clicked.
|
|
*/
|
|
public static boolean isLauncherAppTarget(Intent launchIntent) {
|
|
if (launchIntent != null
|
|
&& Intent.ACTION_MAIN.equals(launchIntent.getAction())
|
|
&& launchIntent.getComponent() != null
|
|
&& launchIntent.getCategories() != null
|
|
&& launchIntent.getCategories().size() == 1
|
|
&& launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER)
|
|
&& TextUtils.isEmpty(launchIntent.getDataString())) {
|
|
// An app target can either have no extra or have ItemInfo.EXTRA_PROFILE.
|
|
Bundle extras = launchIntent.getExtras();
|
|
if (extras == null) {
|
|
return true;
|
|
} else {
|
|
Set<String> keys = extras.keySet();
|
|
return keys.size() == 1 && keys.contains(ItemInfo.EXTRA_PROFILE);
|
|
}
|
|
};
|
|
return false;
|
|
}
|
|
|
|
public static float dpiFromPx(int size, DisplayMetrics metrics){
|
|
float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
|
|
return (size / densityRatio);
|
|
}
|
|
public static int pxFromDp(float size, DisplayMetrics metrics) {
|
|
return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
|
|
size, metrics));
|
|
}
|
|
public static int pxFromSp(float size, DisplayMetrics metrics) {
|
|
return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
|
|
size, metrics));
|
|
}
|
|
|
|
public static String createDbSelectionQuery(String columnName, Iterable<?> values) {
|
|
return String.format(Locale.ENGLISH, "%s IN (%s)", columnName, TextUtils.join(", ", values));
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
|
|
public static CharSequence wrapForTts(CharSequence msg, String ttsMsg) {
|
|
if (Utilities.ATLEAST_LOLLIPOP) {
|
|
SpannableString spanned = new SpannableString(msg);
|
|
spanned.setSpan(new TtsSpan.TextBuilder(ttsMsg).build(),
|
|
0, spanned.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
|
|
return spanned;
|
|
} else {
|
|
return msg;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Replacement for Long.compare() which was added in API level 19.
|
|
*/
|
|
public static int longCompare(long lhs, long rhs) {
|
|
return lhs < rhs ? -1 : (lhs == rhs ? 0 : 1);
|
|
}
|
|
|
|
public static SharedPreferences getPrefs(Context context) {
|
|
return context.getSharedPreferences(
|
|
LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE);
|
|
}
|
|
|
|
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
|
|
public static boolean isPowerSaverOn(Context context) {
|
|
PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
|
|
return ATLEAST_LOLLIPOP && powerManager.isPowerSaveMode();
|
|
}
|
|
|
|
/**
|
|
* An extension of {@link BitmapDrawable} which returns the bitmap pixel size as intrinsic size.
|
|
* This allows the badging to be done based on the action bitmap size rather than
|
|
* the scaled bitmap size.
|
|
*/
|
|
private static class FixedSizeBitmapDrawable extends BitmapDrawable {
|
|
|
|
public FixedSizeBitmapDrawable(Bitmap bitmap) {
|
|
super(null, bitmap);
|
|
}
|
|
|
|
@Override
|
|
public int getIntrinsicHeight() {
|
|
return getBitmap().getWidth();
|
|
}
|
|
|
|
@Override
|
|
public int getIntrinsicWidth() {
|
|
return getBitmap().getWidth();
|
|
}
|
|
}
|
|
}
|