| /* |
| * 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 android.view.textclassifier; |
| |
| import android.annotation.FloatRange; |
| import android.annotation.IntDef; |
| import android.annotation.IntRange; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.PendingIntent; |
| import android.app.RemoteAction; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.res.Resources; |
| import android.graphics.BitmapFactory; |
| import android.graphics.drawable.AdaptiveIconDrawable; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.Icon; |
| import android.os.Bundle; |
| import android.os.LocaleList; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.text.SpannedString; |
| import android.util.ArrayMap; |
| import android.view.View.OnClickListener; |
| import android.view.textclassifier.TextClassifier.EntityType; |
| import android.view.textclassifier.TextClassifier.Utils; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.Preconditions; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.time.ZonedDateTime; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| /** |
| * Information for generating a widget to handle classified text. |
| * |
| * <p>A TextClassification object contains icons, labels, onClickListeners and intents that may |
| * be used to build a widget that can be used to act on classified text. There is the concept of a |
| * <i>primary action</i> and other <i>secondary actions</i>. |
| * |
| * <p>e.g. building a view that, when clicked, shares the classified text with the preferred app: |
| * |
| * <pre>{@code |
| * // Called preferably outside the UiThread. |
| * TextClassification classification = textClassifier.classifyText(allText, 10, 25); |
| * |
| * // Called on the UiThread. |
| * Button button = new Button(context); |
| * button.setCompoundDrawablesWithIntrinsicBounds(classification.getIcon(), null, null, null); |
| * button.setText(classification.getLabel()); |
| * button.setOnClickListener(v -> classification.getActions().get(0).getActionIntent().send()); |
| * }</pre> |
| * |
| * <p>e.g. starting an action mode with menu items that can handle the classified text: |
| * |
| * <pre>{@code |
| * // Called preferably outside the UiThread. |
| * final TextClassification classification = textClassifier.classifyText(allText, 10, 25); |
| * |
| * // Called on the UiThread. |
| * view.startActionMode(new ActionMode.Callback() { |
| * |
| * public boolean onCreateActionMode(ActionMode mode, Menu menu) { |
| * for (int i = 0; i < classification.getActions().size(); ++i) { |
| * RemoteAction action = classification.getActions().get(i); |
| * menu.add(Menu.NONE, i, 20, action.getTitle()) |
| * .setIcon(action.getIcon()); |
| * } |
| * return true; |
| * } |
| * |
| * public boolean onActionItemClicked(ActionMode mode, MenuItem item) { |
| * classification.getActions().get(item.getItemId()).getActionIntent().send(); |
| * return true; |
| * } |
| * |
| * ... |
| * }); |
| * }</pre> |
| */ |
| public final class TextClassification implements Parcelable { |
| |
| /** |
| * @hide |
| */ |
| public static final TextClassification EMPTY = new TextClassification.Builder().build(); |
| |
| private static final String LOG_TAG = "TextClassification"; |
| // TODO(toki): investigate a way to derive this based on device properties. |
| private static final int MAX_LEGACY_ICON_SIZE = 192; |
| |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef(value = {IntentType.UNSUPPORTED, IntentType.ACTIVITY, IntentType.SERVICE}) |
| private @interface IntentType { |
| int UNSUPPORTED = -1; |
| int ACTIVITY = 0; |
| int SERVICE = 1; |
| } |
| |
| @NonNull private final String mText; |
| @Nullable private final Drawable mLegacyIcon; |
| @Nullable private final String mLegacyLabel; |
| @Nullable private final Intent mLegacyIntent; |
| @Nullable private final OnClickListener mLegacyOnClickListener; |
| @NonNull private final List<RemoteAction> mActions; |
| @NonNull private final EntityConfidence mEntityConfidence; |
| @Nullable private final String mId; |
| @NonNull private final Bundle mExtras; |
| |
| private TextClassification( |
| @Nullable String text, |
| @Nullable Drawable legacyIcon, |
| @Nullable String legacyLabel, |
| @Nullable Intent legacyIntent, |
| @Nullable OnClickListener legacyOnClickListener, |
| @NonNull List<RemoteAction> actions, |
| @NonNull EntityConfidence entityConfidence, |
| @Nullable String id, |
| @NonNull Bundle extras) { |
| mText = text; |
| mLegacyIcon = legacyIcon; |
| mLegacyLabel = legacyLabel; |
| mLegacyIntent = legacyIntent; |
| mLegacyOnClickListener = legacyOnClickListener; |
| mActions = Collections.unmodifiableList(actions); |
| mEntityConfidence = Objects.requireNonNull(entityConfidence); |
| mId = id; |
| mExtras = extras; |
| } |
| |
| /** |
| * Gets the classified text. |
| */ |
| @Nullable |
| public String getText() { |
| return mText; |
| } |
| |
| /** |
| * Returns the number of entities found in the classified text. |
| */ |
| @IntRange(from = 0) |
| public int getEntityCount() { |
| return mEntityConfidence.getEntities().size(); |
| } |
| |
| /** |
| * Returns the entity at the specified index. Entities are ordered from high confidence |
| * to low confidence. |
| * |
| * @throws IndexOutOfBoundsException if the specified index is out of range. |
| * @see #getEntityCount() for the number of entities available. |
| */ |
| @NonNull |
| public @EntityType String getEntity(int index) { |
| return mEntityConfidence.getEntities().get(index); |
| } |
| |
| /** |
| * Returns the confidence score for the specified entity. The value ranges from |
| * 0 (low confidence) to 1 (high confidence). 0 indicates that the entity was not found for the |
| * classified text. |
| */ |
| @FloatRange(from = 0.0, to = 1.0) |
| public float getConfidenceScore(@EntityType String entity) { |
| return mEntityConfidence.getConfidenceScore(entity); |
| } |
| |
| /** |
| * Returns a list of actions that may be performed on the text. The list is ordered based on |
| * the likelihood that a user will use the action, with the most likely action appearing first. |
| */ |
| public List<RemoteAction> getActions() { |
| return mActions; |
| } |
| |
| /** |
| * Returns an icon that may be rendered on a widget used to act on the classified text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelable and only represents the icon of the |
| * first {@link RemoteAction} (if one exists) when this object is read from a parcel. |
| * |
| * @deprecated Use {@link #getActions()} instead. |
| */ |
| @Deprecated |
| @Nullable |
| public Drawable getIcon() { |
| return mLegacyIcon; |
| } |
| |
| /** |
| * Returns a label that may be rendered on a widget used to act on the classified text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelable and only represents the label of the |
| * first {@link RemoteAction} (if one exists) when this object is read from a parcel. |
| * |
| * @deprecated Use {@link #getActions()} instead. |
| */ |
| @Deprecated |
| @Nullable |
| public CharSequence getLabel() { |
| return mLegacyLabel; |
| } |
| |
| /** |
| * Returns an intent that may be fired to act on the classified text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelled and will always return null when this |
| * object is read from a parcel. |
| * |
| * @deprecated Use {@link #getActions()} instead. |
| */ |
| @Deprecated |
| @Nullable |
| public Intent getIntent() { |
| return mLegacyIntent; |
| } |
| |
| /** |
| * Returns the OnClickListener that may be triggered to act on the classified text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelable and only represents the first |
| * {@link RemoteAction} (if one exists) when this object is read from a parcel. |
| * |
| * @deprecated Use {@link #getActions()} instead. |
| */ |
| @Nullable |
| public OnClickListener getOnClickListener() { |
| return mLegacyOnClickListener; |
| } |
| |
| /** |
| * Returns the id, if one exists, for this object. |
| */ |
| @Nullable |
| public String getId() { |
| return mId; |
| } |
| |
| /** |
| * Returns the extended data. |
| * |
| * <p><b>NOTE: </b>Do not modify this bundle. |
| */ |
| @NonNull |
| public Bundle getExtras() { |
| return mExtras; |
| } |
| |
| /** @hide */ |
| public Builder toBuilder() { |
| return new Builder() |
| .setId(mId) |
| .setText(mText) |
| .addActions(mActions) |
| .setEntityConfidence(mEntityConfidence) |
| .setIcon(mLegacyIcon) |
| .setLabel(mLegacyLabel) |
| .setIntent(mLegacyIntent) |
| .setOnClickListener(mLegacyOnClickListener) |
| .setExtras(mExtras); |
| } |
| |
| @Override |
| public String toString() { |
| return String.format(Locale.US, |
| "TextClassification {text=%s, entities=%s, actions=%s, id=%s, extras=%s}", |
| mText, mEntityConfidence, mActions, mId, mExtras); |
| } |
| |
| /** |
| * Creates an OnClickListener that triggers the specified PendingIntent. |
| * |
| * @hide |
| */ |
| public static OnClickListener createIntentOnClickListener(@NonNull final PendingIntent intent) { |
| Objects.requireNonNull(intent); |
| return v -> { |
| try { |
| intent.send(); |
| } catch (PendingIntent.CanceledException e) { |
| Log.e(LOG_TAG, "Error sending PendingIntent", e); |
| } |
| }; |
| } |
| |
| /** |
| * Creates a PendingIntent for the specified intent. |
| * Returns null if the intent is not supported for the specified context. |
| * |
| * @throws IllegalArgumentException if context or intent is null |
| * @hide |
| */ |
| public static PendingIntent createPendingIntent( |
| @NonNull final Context context, @NonNull final Intent intent, int requestCode) { |
| return PendingIntent.getActivity( |
| context, requestCode, intent, |
| PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE); |
| } |
| |
| /** |
| * Builder for building {@link TextClassification} objects. |
| * |
| * <p>e.g. |
| * |
| * <pre>{@code |
| * TextClassification classification = new TextClassification.Builder() |
| * .setText(classifiedText) |
| * .setEntityType(TextClassifier.TYPE_EMAIL, 0.9) |
| * .setEntityType(TextClassifier.TYPE_OTHER, 0.1) |
| * .addAction(remoteAction1) |
| * .addAction(remoteAction2) |
| * .build(); |
| * }</pre> |
| */ |
| public static final class Builder { |
| |
| @NonNull private final List<RemoteAction> mActions = new ArrayList<>(); |
| @NonNull private final Map<String, Float> mTypeScoreMap = new ArrayMap<>(); |
| @Nullable private String mText; |
| @Nullable private Drawable mLegacyIcon; |
| @Nullable private String mLegacyLabel; |
| @Nullable private Intent mLegacyIntent; |
| @Nullable private OnClickListener mLegacyOnClickListener; |
| @Nullable private String mId; |
| @Nullable private Bundle mExtras; |
| |
| /** |
| * Sets the classified text. |
| */ |
| @NonNull |
| public Builder setText(@Nullable String text) { |
| mText = text; |
| return this; |
| } |
| |
| /** |
| * Sets an entity type for the classification result and assigns a confidence score. |
| * If a confidence score had already been set for the specified entity type, this will |
| * override that score. |
| * |
| * @param confidenceScore a value from 0 (low confidence) to 1 (high confidence). |
| * 0 implies the entity does not exist for the classified text. |
| * Values greater than 1 are clamped to 1. |
| */ |
| @NonNull |
| public Builder setEntityType( |
| @NonNull @EntityType String type, |
| @FloatRange(from = 0.0, to = 1.0) float confidenceScore) { |
| mTypeScoreMap.put(type, confidenceScore); |
| return this; |
| } |
| |
| Builder setEntityConfidence(EntityConfidence scores) { |
| mTypeScoreMap.clear(); |
| mTypeScoreMap.putAll(scores.toMap()); |
| return this; |
| } |
| |
| /** @hide */ |
| public Builder clearEntityTypes() { |
| mTypeScoreMap.clear(); |
| return this; |
| } |
| |
| /** |
| * Adds an action that may be performed on the classified text. Actions should be added in |
| * order of likelihood that the user will use them, with the most likely action being added |
| * first. |
| */ |
| @NonNull |
| public Builder addAction(@NonNull RemoteAction action) { |
| Preconditions.checkArgument(action != null); |
| mActions.add(action); |
| return this; |
| } |
| |
| /** @hide */ |
| public Builder addActions(Collection<RemoteAction> actions) { |
| Objects.requireNonNull(actions); |
| mActions.addAll(actions); |
| return this; |
| } |
| |
| /** @hide */ |
| public Builder clearActions() { |
| mActions.clear(); |
| return this; |
| } |
| |
| /** |
| * Sets the icon for the <i>primary</i> action that may be rendered on a widget used to act |
| * on the classified text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelled. If read from a parcel, the |
| * returned icon represents the icon of the first {@link RemoteAction} (if one exists). |
| * |
| * @deprecated Use {@link #addAction(RemoteAction)} instead. |
| */ |
| @Deprecated |
| @NonNull |
| public Builder setIcon(@Nullable Drawable icon) { |
| mLegacyIcon = icon; |
| return this; |
| } |
| |
| /** |
| * Sets the label for the <i>primary</i> action that may be rendered on a widget used to |
| * act on the classified text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelled. If read from a parcel, the |
| * returned label represents the label of the first {@link RemoteAction} (if one exists). |
| * |
| * @deprecated Use {@link #addAction(RemoteAction)} instead. |
| */ |
| @Deprecated |
| @NonNull |
| public Builder setLabel(@Nullable String label) { |
| mLegacyLabel = label; |
| return this; |
| } |
| |
| /** |
| * Sets the intent for the <i>primary</i> action that may be fired to act on the classified |
| * text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelled. |
| * |
| * @deprecated Use {@link #addAction(RemoteAction)} instead. |
| */ |
| @Deprecated |
| @NonNull |
| public Builder setIntent(@Nullable Intent intent) { |
| mLegacyIntent = intent; |
| return this; |
| } |
| |
| /** |
| * Sets the OnClickListener for the <i>primary</i> action that may be triggered to act on |
| * the classified text. |
| * |
| * <p><strong>NOTE: </strong>This field is not parcelable. If read from a parcel, the |
| * returned OnClickListener represents the first {@link RemoteAction} (if one exists). |
| * |
| * @deprecated Use {@link #addAction(RemoteAction)} instead. |
| */ |
| @Deprecated |
| @NonNull |
| public Builder setOnClickListener(@Nullable OnClickListener onClickListener) { |
| mLegacyOnClickListener = onClickListener; |
| return this; |
| } |
| |
| /** |
| * Sets an id for the TextClassification object. |
| */ |
| @NonNull |
| public Builder setId(@Nullable String id) { |
| mId = id; |
| return this; |
| } |
| |
| /** |
| * Sets the extended data. |
| */ |
| @NonNull |
| public Builder setExtras(@Nullable Bundle extras) { |
| mExtras = extras; |
| return this; |
| } |
| |
| /** |
| * Builds and returns a {@link TextClassification} object. |
| */ |
| @NonNull |
| public TextClassification build() { |
| EntityConfidence entityConfidence = new EntityConfidence(mTypeScoreMap); |
| return new TextClassification(mText, mLegacyIcon, mLegacyLabel, mLegacyIntent, |
| mLegacyOnClickListener, mActions, entityConfidence, mId, |
| mExtras == null ? Bundle.EMPTY : mExtras); |
| } |
| } |
| |
| /** |
| * A request object for generating TextClassification. |
| */ |
| public static final class Request implements Parcelable { |
| |
| private final CharSequence mText; |
| private final int mStartIndex; |
| private final int mEndIndex; |
| @Nullable private final LocaleList mDefaultLocales; |
| @Nullable private final ZonedDateTime mReferenceTime; |
| @NonNull private final Bundle mExtras; |
| @Nullable private SystemTextClassifierMetadata mSystemTcMetadata; |
| |
| private Request( |
| CharSequence text, |
| int startIndex, |
| int endIndex, |
| LocaleList defaultLocales, |
| ZonedDateTime referenceTime, |
| Bundle extras) { |
| mText = text; |
| mStartIndex = startIndex; |
| mEndIndex = endIndex; |
| mDefaultLocales = defaultLocales; |
| mReferenceTime = referenceTime; |
| mExtras = extras; |
| } |
| |
| /** |
| * Returns the text providing context for the text to classify (which is specified |
| * by the sub sequence starting at startIndex and ending at endIndex) |
| */ |
| @NonNull |
| public CharSequence getText() { |
| return mText; |
| } |
| |
| /** |
| * Returns start index of the text to classify. |
| */ |
| @IntRange(from = 0) |
| public int getStartIndex() { |
| return mStartIndex; |
| } |
| |
| /** |
| * Returns end index of the text to classify. |
| */ |
| @IntRange(from = 0) |
| public int getEndIndex() { |
| return mEndIndex; |
| } |
| |
| /** |
| * @return ordered list of locale preferences that can be used to disambiguate |
| * the provided text. |
| */ |
| @Nullable |
| public LocaleList getDefaultLocales() { |
| return mDefaultLocales; |
| } |
| |
| /** |
| * @return reference time based on which relative dates (e.g. "tomorrow") should be |
| * interpreted. |
| */ |
| @Nullable |
| public ZonedDateTime getReferenceTime() { |
| return mReferenceTime; |
| } |
| |
| /** |
| * Returns the name of the package that sent this request. |
| * This returns {@code null} if no calling package name is set. |
| */ |
| @Nullable |
| public String getCallingPackageName() { |
| return mSystemTcMetadata != null ? mSystemTcMetadata.getCallingPackageName() : null; |
| } |
| |
| /** |
| * Sets the information about the {@link SystemTextClassifier} that sent this request. |
| * |
| * @hide |
| */ |
| @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE) |
| public void setSystemTextClassifierMetadata( |
| @Nullable SystemTextClassifierMetadata systemTcMetadata) { |
| mSystemTcMetadata = systemTcMetadata; |
| } |
| |
| /** |
| * Returns the information about the {@link SystemTextClassifier} that sent this request. |
| * |
| * @hide |
| */ |
| @Nullable |
| public SystemTextClassifierMetadata getSystemTextClassifierMetadata() { |
| return mSystemTcMetadata; |
| } |
| |
| /** |
| * Returns the extended data. |
| * |
| * <p><b>NOTE: </b>Do not modify this bundle. |
| */ |
| @NonNull |
| public Bundle getExtras() { |
| return mExtras; |
| } |
| |
| /** |
| * A builder for building TextClassification requests. |
| */ |
| public static final class Builder { |
| |
| private final CharSequence mText; |
| private final int mStartIndex; |
| private final int mEndIndex; |
| private Bundle mExtras; |
| |
| @Nullable private LocaleList mDefaultLocales; |
| @Nullable private ZonedDateTime mReferenceTime; |
| |
| /** |
| * @param text text providing context for the text to classify (which is specified |
| * by the sub sequence starting at startIndex and ending at endIndex) |
| * @param startIndex start index of the text to classify |
| * @param endIndex end index of the text to classify |
| */ |
| public Builder( |
| @NonNull CharSequence text, |
| @IntRange(from = 0) int startIndex, |
| @IntRange(from = 0) int endIndex) { |
| Utils.checkArgument(text, startIndex, endIndex); |
| mText = text; |
| mStartIndex = startIndex; |
| mEndIndex = endIndex; |
| } |
| |
| /** |
| * @param defaultLocales ordered list of locale preferences that may be used to |
| * disambiguate the provided text. If no locale preferences exist, set this to null |
| * or an empty locale list. |
| * |
| * @return this builder |
| */ |
| @NonNull |
| public Builder setDefaultLocales(@Nullable LocaleList defaultLocales) { |
| mDefaultLocales = defaultLocales; |
| return this; |
| } |
| |
| /** |
| * @param referenceTime reference time based on which relative dates (e.g. "tomorrow" |
| * should be interpreted. This should usually be the time when the text was |
| * originally composed. If no reference time is set, now is used. |
| * |
| * @return this builder |
| */ |
| @NonNull |
| public Builder setReferenceTime(@Nullable ZonedDateTime referenceTime) { |
| mReferenceTime = referenceTime; |
| return this; |
| } |
| |
| /** |
| * Sets the extended data. |
| * |
| * @return this builder |
| */ |
| @NonNull |
| public Builder setExtras(@Nullable Bundle extras) { |
| mExtras = extras; |
| return this; |
| } |
| |
| /** |
| * Builds and returns the request object. |
| */ |
| @NonNull |
| public Request build() { |
| return new Request(new SpannedString(mText), mStartIndex, mEndIndex, |
| mDefaultLocales, mReferenceTime, |
| mExtras == null ? Bundle.EMPTY : mExtras); |
| } |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeCharSequence(mText); |
| dest.writeInt(mStartIndex); |
| dest.writeInt(mEndIndex); |
| dest.writeParcelable(mDefaultLocales, flags); |
| dest.writeString(mReferenceTime == null ? null : mReferenceTime.toString()); |
| dest.writeBundle(mExtras); |
| dest.writeParcelable(mSystemTcMetadata, flags); |
| } |
| |
| private static Request readFromParcel(Parcel in) { |
| final CharSequence text = in.readCharSequence(); |
| final int startIndex = in.readInt(); |
| final int endIndex = in.readInt(); |
| final LocaleList defaultLocales = in.readParcelable(null, android.os.LocaleList.class); |
| final String referenceTimeString = in.readString(); |
| final ZonedDateTime referenceTime = referenceTimeString == null |
| ? null : ZonedDateTime.parse(referenceTimeString); |
| final Bundle extras = in.readBundle(); |
| final SystemTextClassifierMetadata systemTcMetadata = in.readParcelable(null, android.view.textclassifier.SystemTextClassifierMetadata.class); |
| |
| final Request request = new Request(text, startIndex, endIndex, |
| defaultLocales, referenceTime, extras); |
| request.setSystemTextClassifierMetadata(systemTcMetadata); |
| return request; |
| } |
| |
| public static final @android.annotation.NonNull Parcelable.Creator<Request> CREATOR = |
| new Parcelable.Creator<Request>() { |
| @Override |
| public Request createFromParcel(Parcel in) { |
| return readFromParcel(in); |
| } |
| |
| @Override |
| public Request[] newArray(int size) { |
| return new Request[size]; |
| } |
| }; |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeString(mText); |
| // NOTE: legacy fields are not parcelled. |
| dest.writeTypedList(mActions); |
| mEntityConfidence.writeToParcel(dest, flags); |
| dest.writeString(mId); |
| dest.writeBundle(mExtras); |
| } |
| |
| public static final @android.annotation.NonNull Parcelable.Creator<TextClassification> CREATOR = |
| new Parcelable.Creator<TextClassification>() { |
| @Override |
| public TextClassification createFromParcel(Parcel in) { |
| return new TextClassification(in); |
| } |
| |
| @Override |
| public TextClassification[] newArray(int size) { |
| return new TextClassification[size]; |
| } |
| }; |
| |
| private TextClassification(Parcel in) { |
| mText = in.readString(); |
| mActions = in.createTypedArrayList(RemoteAction.CREATOR); |
| if (!mActions.isEmpty()) { |
| final RemoteAction action = mActions.get(0); |
| mLegacyIcon = maybeLoadDrawable(action.getIcon()); |
| mLegacyLabel = action.getTitle().toString(); |
| mLegacyOnClickListener = createIntentOnClickListener(mActions.get(0).getActionIntent()); |
| } else { |
| mLegacyIcon = null; |
| mLegacyLabel = null; |
| mLegacyOnClickListener = null; |
| } |
| mLegacyIntent = null; // mLegacyIntent is not parcelled. |
| mEntityConfidence = EntityConfidence.CREATOR.createFromParcel(in); |
| mId = in.readString(); |
| mExtras = in.readBundle(); |
| } |
| |
| // Best effort attempt to try to load a drawable from the provided icon. |
| @Nullable |
| private static Drawable maybeLoadDrawable(Icon icon) { |
| if (icon == null) { |
| return null; |
| } |
| switch (icon.getType()) { |
| case Icon.TYPE_BITMAP: |
| return new BitmapDrawable(Resources.getSystem(), icon.getBitmap()); |
| case Icon.TYPE_ADAPTIVE_BITMAP: |
| return new AdaptiveIconDrawable(null, |
| new BitmapDrawable(Resources.getSystem(), icon.getBitmap())); |
| case Icon.TYPE_DATA: |
| return new BitmapDrawable( |
| Resources.getSystem(), |
| BitmapFactory.decodeByteArray( |
| icon.getDataBytes(), icon.getDataOffset(), icon.getDataLength())); |
| } |
| return null; |
| } |
| } |
