/*
* Copyright (C) 2014 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.media.tv;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.Icon;
import android.hardware.hdmi.HdmiDeviceInfo;
import android.net.Uri;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.UserHandle;
import android.provider.Settings;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.Log;
import android.util.SparseIntArray;
import android.util.Xml;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
/**
* This class is used to specify meta information of a TV input.
*/
public final class TvInputInfo implements Parcelable {
private static final boolean DEBUG = false;
private static final String TAG = "TvInputInfo";
// Should be in sync with frameworks/base/core/res/res/values/attrs.xml
/**
* TV input type: the TV input service is a tuner which provides channels.
*/
public static final int TYPE_TUNER = 0;
/**
* TV input type: a generic hardware TV input type.
*/
public static final int TYPE_OTHER = 1000;
/**
* TV input type: the TV input service represents a composite port.
*/
public static final int TYPE_COMPOSITE = 1001;
/**
* TV input type: the TV input service represents a SVIDEO port.
*/
public static final int TYPE_SVIDEO = 1002;
/**
* TV input type: the TV input service represents a SCART port.
*/
public static final int TYPE_SCART = 1003;
/**
* TV input type: the TV input service represents a component port.
*/
public static final int TYPE_COMPONENT = 1004;
/**
* TV input type: the TV input service represents a VGA port.
*/
public static final int TYPE_VGA = 1005;
/**
* TV input type: the TV input service represents a DVI port.
*/
public static final int TYPE_DVI = 1006;
/**
* TV input type: the TV input service is HDMI. (e.g. HDMI 1)
*/
public static final int TYPE_HDMI = 1007;
/**
* TV input type: the TV input service represents a display port.
*/
public static final int TYPE_DISPLAY_PORT = 1008;
/**
* The ID of the TV input to provide to the setup activity and settings activity.
*/
public static final String EXTRA_INPUT_ID = "android.media.tv.extra.INPUT_ID";
private static final SparseIntArray sHardwareTypeToTvInputType = new SparseIntArray();
private static final String XML_START_TAG_NAME = "tv-input";
private static final String DELIMITER_INFO_IN_ID = "/";
private static final String PREFIX_HDMI_DEVICE = "HDMI";
private static final String PREFIX_HARDWARE_DEVICE = "HW";
private static final int LENGTH_HDMI_PHYSICAL_ADDRESS = 4;
private static final int LENGTH_HDMI_DEVICE_ID = 2;
private final ResolveInfo mService;
private final String mId;
private final String mParentId;
private final int mType;
private final boolean mIsHardwareInput;
// Attributes from XML meta data.
private String mSetupActivity;
private String mSettingsActivity;
private HdmiDeviceInfo mHdmiDeviceInfo;
private int mLabelRes;
private String mLabel;
private Icon mIcon;
private Uri mIconUri;
private boolean mIsConnectedToHdmiSwitch;
static {
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_OTHER_HARDWARE,
TYPE_OTHER);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_TUNER, TYPE_TUNER);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_COMPOSITE, TYPE_COMPOSITE);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_SVIDEO, TYPE_SVIDEO);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_SCART, TYPE_SCART);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_COMPONENT, TYPE_COMPONENT);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_VGA, TYPE_VGA);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_DVI, TYPE_DVI);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_HDMI, TYPE_HDMI);
sHardwareTypeToTvInputType.put(TvInputHardwareInfo.TV_INPUT_TYPE_DISPLAY_PORT,
TYPE_DISPLAY_PORT);
}
/**
* Create a new instance of the TvInputInfo class,
* instantiating it from the given Context and ResolveInfo.
*
* @param service The ResolveInfo returned from the package manager about this TV input service.
* @hide
*/
public static TvInputInfo createTvInputInfo(Context context, ResolveInfo service)
throws XmlPullParserException, IOException {
return createTvInputInfo(context, service, generateInputIdForComponentName(
new ComponentName(service.serviceInfo.packageName, service.serviceInfo.name)),
null, TYPE_TUNER, false, 0, null, null, null, false);
}
/**
* Create a new instance of the TvInputInfo class, instantiating it from the given Context,
* ResolveInfo, and HdmiDeviceInfo.
*
* @param service The ResolveInfo returned from the package manager about this TV input service.
* @param hdmiDeviceInfo The HdmiDeviceInfo for a HDMI CEC logical device.
* @param parentId The ID of this TV input's parent input. {@code null} if none exists.
* @param label The label of this TvInputInfo. If it is {@code null} or empty, {@code service}
* label will be loaded.
* @param iconUri The {@link android.net.Uri} to load the icon image. See
* {@link android.content.ContentResolver#openInputStream}. If it is {@code null},
* the application icon of {@code service} will be loaded.
* @hide
*/
@SystemApi
public static TvInputInfo createTvInputInfo(Context context, ResolveInfo service,
HdmiDeviceInfo hdmiDeviceInfo, String parentId, String label, Uri iconUri)
throws XmlPullParserException, IOException {
boolean isConnectedToHdmiSwitch = (hdmiDeviceInfo.getPhysicalAddress() & 0x0FFF) != 0;
TvInputInfo input = createTvInputInfo(context, service, generateInputIdForHdmiDevice(
new ComponentName(service.serviceInfo.packageName, service.serviceInfo.name),
hdmiDeviceInfo), parentId, TYPE_HDMI, true, 0, label, null, iconUri,
isConnectedToHdmiSwitch);
input.mHdmiDeviceInfo = hdmiDeviceInfo;
return input;
}
/**
* Create a new instance of the TvInputInfo class, instantiating it from the given Context,
* ResolveInfo, and HdmiDeviceInfo.
*
* @param service The ResolveInfo returned from the package manager about this TV input service.
* @param hdmiDeviceInfo The HdmiDeviceInfo for a HDMI CEC logical device.
* @param parentId The ID of this TV input's parent input. {@code null} if none exists.
* @param labelRes The label resource ID of this TvInputInfo. If it is {@code 0},
* {@code service} label will be loaded.
* @param icon The {@link android.graphics.drawable.Icon} to load the icon image. If it is
* {@code null}, the application icon of {@code service} will be loaded.
* @hide
*/
@SystemApi
public static TvInputInfo createTvInputInfo(Context context, ResolveInfo service,
HdmiDeviceInfo hdmiDeviceInfo, String parentId, int labelRes, Icon icon)
throws XmlPullParserException, IOException {
boolean isConnectedToHdmiSwitch = (hdmiDeviceInfo.getPhysicalAddress() & 0x0FFF) != 0;
TvInputInfo input = createTvInputInfo(context, service, generateInputIdForHdmiDevice(
new ComponentName(service.serviceInfo.packageName, service.serviceInfo.name),
hdmiDeviceInfo), parentId, TYPE_HDMI, true, labelRes, null, icon, null,
isConnectedToHdmiSwitch);
input.mHdmiDeviceInfo = hdmiDeviceInfo;
return input;
}
/**
* Create a new instance of the TvInputInfo class, instantiating it from the given Context,
* ResolveInfo, and TvInputHardwareInfo.
*
* @param service The ResolveInfo returned from the package manager about this TV input service.
* @param hardwareInfo The TvInputHardwareInfo for a TV input hardware device.
* @param label The label of this TvInputInfo. If it is {@code null} or empty, {@code service}
* label will be loaded.
* @param iconUri The {@link android.net.Uri} to load the icon image. See
* {@link android.content.ContentResolver#openInputStream}. If it is {@code null},
* the application icon of {@code service} will be loaded.
* @hide
*/
@SystemApi
public static TvInputInfo createTvInputInfo(Context context, ResolveInfo service,
TvInputHardwareInfo hardwareInfo, String label, Uri iconUri)
throws XmlPullParserException, IOException {
int inputType = sHardwareTypeToTvInputType.get(hardwareInfo.getType(), TYPE_TUNER);
return createTvInputInfo(context, service, generateInputIdForHardware(
new ComponentName(service.serviceInfo.packageName, service.serviceInfo.name),
hardwareInfo), null, inputType, true, 0, label, null, iconUri, false);
}
/**
* Create a new instance of the TvInputInfo class, instantiating it from the given Context,
* ResolveInfo, and TvInputHardwareInfo.
*
* @param service The ResolveInfo returned from the package manager about this TV input service.
* @param hardwareInfo The TvInputHardwareInfo for a TV input hardware device.
* @param labelRes The label resource ID of this TvInputInfo. If it is {@code 0},
* {@code service} label will be loaded.
* @param icon The {@link android.graphics.drawable.Icon} to load the icon image. If it is
* {@code null}, the application icon of {@code service} will be loaded.
* @hide
*/
@SystemApi
public static TvInputInfo createTvInputInfo(Context context, ResolveInfo service,
TvInputHardwareInfo hardwareInfo, int labelRes, Icon icon)
throws XmlPullParserException, IOException {
int inputType = sHardwareTypeToTvInputType.get(hardwareInfo.getType(), TYPE_TUNER);
return createTvInputInfo(context, service, generateInputIdForHardware(
new ComponentName(service.serviceInfo.packageName, service.serviceInfo.name),
hardwareInfo), null, inputType, true, labelRes, null, icon, null, false);
}
private static TvInputInfo createTvInputInfo(Context context, ResolveInfo service, String id,
String parentId, int inputType, boolean isHardwareInput, int labelRes, String label,
Icon icon, Uri iconUri, boolean isConnectedToHdmiSwitch)
throws XmlPullParserException, IOException {
ServiceInfo si = service.serviceInfo;
PackageManager pm = context.getPackageManager();
XmlResourceParser parser = null;
try {
parser = si.loadXmlMetaData(pm, TvInputService.SERVICE_META_DATA);
if (parser == null) {
throw new XmlPullParserException("No " + TvInputService.SERVICE_META_DATA
+ " meta-data for " + si.name);
}
Resources res = pm.getResourcesForApplication(si.applicationInfo);
AttributeSet attrs = Xml.asAttributeSet(parser);
int type;
while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
&& type != XmlPullParser.START_TAG) {
}
String nodeName = parser.getName();
if (!XML_START_TAG_NAME.equals(nodeName)) {
throw new XmlPullParserException(
"Meta-data does not start with tv-input-service tag in " + si.name);
}
TvInputInfo input = new TvInputInfo(service, id, parentId, inputType, isHardwareInput);
TypedArray sa = res.obtainAttributes(attrs,
com.android.internal.R.styleable.TvInputService);
input.mSetupActivity = sa.getString(
com.android.internal.R.styleable.TvInputService_setupActivity);
if (DEBUG) {
Log.d(TAG, "Setup activity loaded. [" + input.mSetupActivity + "] for " + si.name);
}
if (inputType == TYPE_TUNER && TextUtils.isEmpty(input.mSetupActivity)) {
throw new XmlPullParserException("Setup activity not found in " + si.name);
}
input.mSettingsActivity = sa.getString(
com.android.internal.R.styleable.TvInputService_settingsActivity);
if (DEBUG) {
Log.d(TAG, "Settings activity loaded. [" + input.mSettingsActivity + "] for "
+ si.name);
}
sa.recycle();
input.mLabelRes = labelRes;
input.mLabel = label;
input.mIcon = icon;
input.mIconUri = iconUri;
input.mIsConnectedToHdmiSwitch = isConnectedToHdmiSwitch;
return input;
} catch (NameNotFoundException e) {
throw new XmlPullParserException("Unable to create context for: " + si.packageName);
} finally {
if (parser != null) {
parser.close();
}
}
}
/**
* Constructor.
*
* @param service The ResolveInfo returned from the package manager about this TV input service.
* @param id ID of this TV input. Should be generated via generateInputId*().
* @param parentId ID of this TV input's parent input. {@code null} if none exists.
* @param type The type of this TV input service.
* @param isHardwareInput {@code true} if this TV input represents a hardware device.
* {@code false} otherwise.
*/
private TvInputInfo(ResolveInfo service, String id, String parentId, int type,
boolean isHardwareInput) {
mService = service;
mId = id;
mParentId = parentId;
mType = type;
mIsHardwareInput = isHardwareInput;
}
/**
* Returns a unique ID for this TV input. The ID is generated from the package and class name
* implementing the TV input service.
*/
public String getId() {
return mId;
}
/**
* Returns the parent input ID.
*
* <p>A TV input may have a parent input if the TV input is actually a logical representation of
* a device behind the hardware port represented by the parent input.
* For example, a HDMI CEC logical device, connected to a HDMI port, appears as another TV
* input. In this case, the parent input of this logical device is the HDMI port.
*
* <p>Applications may group inputs by parent input ID to provide an easier access to inputs
* sharing the same physical port. In the example of HDMI CEC, logical HDMI CEC devices behind
* the same HDMI port have the same parent ID, which is the ID representing the port. Thus
* applications can group the hardware HDMI port and the logical HDMI CEC devices behind it
* together using this method.
*
* @return the ID of the parent input, if exists. Returns {@code null} if the parent input is
* not specified.
*/
public String getParentId() {
return mParentId;
}
/**
* Returns the information of the service that implements this TV input.
*/
public ServiceInfo getServiceInfo() {
return mService.serviceInfo;
}
/**
* Returns the component of the service that implements this TV input.
* @hide
*/
public ComponentName getComponent() {
return new ComponentName(mService.serviceInfo.packageName, mService.serviceInfo.name);
}
/**
* Returns an intent to start the setup activity for this TV input.
*/
public Intent createSetupIntent() {
if (!TextUtils.isEmpty(mSetupActivity)) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName(mService.serviceInfo.packageName, mSetupActivity);
intent.putExtra(EXTRA_INPUT_ID, getId());
return intent;
}
return null;
}
/**
* Returns an intent to start the settings activity for this TV input.
*/
public Intent createSettingsIntent() {
if (!TextUtils.isEmpty(mSettingsActivity)) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName(mService.serviceInfo.packageName, mSettingsActivity);
intent.putExtra(EXTRA_INPUT_ID, getId());
return intent;
}
return null;
}
/**
* Returns the type of this TV input.
*/
public int getType() {
return mType;
}
/**
* Returns the HDMI device information of this TV input.
* @hide
*/
@SystemApi
public HdmiDeviceInfo getHdmiDeviceInfo() {
if (mType == TYPE_HDMI) {
return mHdmiDeviceInfo;
}
return null;
}
/**
* Returns {@code true} if this TV input is pass-though which does not have any real channels in
* TvProvider. {@code false} otherwise.
*
* @see TvContract#buildChannelUriForPassthroughInput(String)
*/
public boolean isPassthroughInput() {
return mType != TYPE_TUNER;
}
/**
* Returns {@code true} if this TV input represents a hardware device. (e.g. built-in tuner,
* HDMI1) {@code false} otherwise.
* @hide
*/
@SystemApi
public boolean isHardwareInput() {
return mIsHardwareInput;
}
/**
* Returns {@code true}, if a CEC device for this TV input is connected to an HDMI switch, i.e.,
* the device isn't directly connected to a HDMI port.
* @hide
*/
@SystemApi
public boolean isConnectedToHdmiSwitch() {
return mIsConnectedToHdmiSwitch;
}
/**
* Checks if this TV input is marked hidden by the user in the settings.
*
* @param context Supplies a {@link Context} used to check if this TV input is hidden.
* @return {@code true} if the user marked this TV input hidden in settings. {@code false}
* otherwise.
* @hide
*/
@SystemApi
public boolean isHidden(Context context) {
return TvInputSettings.isHidden(context, mId, UserHandle.myUserId());
}
/**
* Loads the user-displayed label for this TV input.
*
* @param context Supplies a {@link Context} used to load the label.
* @return a CharSequence containing the TV input's label. If the TV input does not have
* a label, its name is returned.
*/
public CharSequence loadLabel(@NonNull Context context) {
if (mLabelRes != 0) {
return context.getPackageManager().getText(mService.serviceInfo.packageName, mLabelRes,
null);
} else if (!TextUtils.isEmpty(mLabel)) {
return mLabel;
}
return mService.loadLabel(context.getPackageManager());
}
/**
* Loads the custom label set by user in settings.
*
* @param context Supplies a {@link Context} used to load the custom label.
* @return a CharSequence containing the TV input's custom label. {@code null} if there is no
* custom label.
* @hide
*/
@SystemApi
public CharSequence loadCustomLabel(Context context) {
return TvInputSettings.getCustomLabel(context, mId, UserHandle.myUserId());
}
/**
* Loads the user-displayed icon for this TV input.
*
* @param context Supplies a {@link Context} used to load the icon.
* @return a Drawable containing the TV input's icon. If the TV input does not have an icon,
* application's icon is returned. If it's unavailable too, {@code null} is returned.
*/
public Drawable loadIcon(@NonNull Context context) {
if (mIcon != null) {
return mIcon.loadDrawable(context);
} else if (mIconUri != null) {
try (InputStream is = context.getContentResolver().openInputStream(mIconUri)) {
Drawable drawable = Drawable.createFromStream(is, null);
if (drawable != null) {
return drawable;
}
} catch (IOException e) {
Log.w(TAG, "Loading the default icon due to a failure on loading " + mIconUri, e);
// Falls back.
}
}
return loadServiceIcon(context);
}
@Override
public int describeContents() {
return 0;
}
@Override
public int hashCode() {
return mId.hashCode();
}
@Override
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (!(o instanceof TvInputInfo)) {
return false;
}
TvInputInfo obj = (TvInputInfo) o;
return mId.equals(obj.mId);
}
@Override
public String toString() {
return "TvInputInfo{id=" + mId
+ ", pkg=" + mService.serviceInfo.packageName
+ ", service=" + mService.serviceInfo.name + "}";
}
/**
* Used to package this object into a {@link Parcel}.
*
* @param dest The {@link Parcel} to be written.
* @param flags The flags used for parceling.
*/
@Override
public void writeToParcel(@NonNull Parcel dest, int flags) {
dest.writeString(mId);
dest.writeString(mParentId);
mService.writeToParcel(dest, flags);
dest.writeString(mSetupActivity);
dest.writeString(mSettingsActivity);
dest.writeInt(mType);
dest.writeByte(mIsHardwareInput ? (byte) 1 : 0);
dest.writeParcelable(mHdmiDeviceInfo, flags);
dest.writeParcelable(mIcon, flags);
dest.writeParcelable(mIconUri, flags);
dest.writeInt(mLabelRes);
dest.writeString(mLabel);
dest.writeByte(mIsConnectedToHdmiSwitch ? (byte) 1 : 0);
}
private Drawable loadServiceIcon(Context context) {
if (mService.serviceInfo.icon == 0
&& mService.serviceInfo.applicationInfo.icon == 0) {
return null;
}
return mService.serviceInfo.loadIcon(context.getPackageManager());
}
/**
* Used to generate an input id from a ComponentName.
*
* @param name the component name for generating an input id.
* @return the generated input id for the given {@code name}.
*/
private static String generateInputIdForComponentName(ComponentName name) {
return name.flattenToShortString();
}
/**
* Used to generate an input id from a ComponentName and HdmiDeviceInfo.
*
* @param name the component name for generating an input id.
* @param deviceInfo HdmiDeviceInfo describing this TV input.
* @return the generated input id for the given {@code name} and {@code deviceInfo}.
*/
private static String generateInputIdForHdmiDevice(
ComponentName name, HdmiDeviceInfo deviceInfo) {
// Example of the format : "/HDMI%04X%02X"
String format = DELIMITER_INFO_IN_ID + PREFIX_HDMI_DEVICE
+ "%0" + LENGTH_HDMI_PHYSICAL_ADDRESS + "X"
+ "%0" + LENGTH_HDMI_DEVICE_ID + "X";
return name.flattenToShortString() + String.format(Locale.ENGLISH, format,
deviceInfo.getPhysicalAddress(), deviceInfo.getId());
}
/**
* Used to generate an input id from a ComponentName and TvInputHardwareInfo
*
* @param name the component name for generating an input id.
* @param hardwareInfo TvInputHardwareInfo describing this TV input.
* @return the generated input id for the given {@code name} and {@code hardwareInfo}.
*/
private static String generateInputIdForHardware(
ComponentName name, TvInputHardwareInfo hardwareInfo) {
return name.flattenToShortString() + DELIMITER_INFO_IN_ID + PREFIX_HARDWARE_DEVICE
+ hardwareInfo.getDeviceId();
}
public static final Parcelable.Creator<TvInputInfo> CREATOR =
new Parcelable.Creator<TvInputInfo>() {
@Override
public TvInputInfo createFromParcel(Parcel in) {
return new TvInputInfo(in);
}
@Override
public TvInputInfo[] newArray(int size) {
return new TvInputInfo[size];
}
};
private TvInputInfo(Parcel in) {
mId = in.readString();
mParentId = in.readString();
mService = ResolveInfo.CREATOR.createFromParcel(in);
mSetupActivity = in.readString();
mSettingsActivity = in.readString();
mType = in.readInt();
mIsHardwareInput = in.readByte() == 1;
mHdmiDeviceInfo = in.readParcelable(null);
mIcon = in.readParcelable(null);
mIconUri = in.readParcelable(null);
mLabelRes = in.readInt();
mLabel = in.readString();
mIsConnectedToHdmiSwitch = in.readByte() == 1;
}
/**
* Utility class for putting and getting settings for TV input.
*
* @hide
*/
@SystemApi
public static final class TvInputSettings {
private static final String TV_INPUT_SEPARATOR = ":";
private static final String CUSTOM_NAME_SEPARATOR = ",";
private TvInputSettings() { }
private static boolean isHidden(Context context, String inputId, int userId) {
return getHiddenTvInputIds(context, userId).contains(inputId);
}
private static String getCustomLabel(Context context, String inputId, int userId) {
return getCustomLabels(context, userId).get(inputId);
}
/**
* Returns a set of TV input IDs which are marked as hidden by user in the settings.
*
* @param context The application context
* @param userId The user ID for the stored hidden input set
* @hide
*/
@SystemApi
public static Set<String> getHiddenTvInputIds(Context context, int userId) {
String hiddenIdsString = Settings.Secure.getStringForUser(
context.getContentResolver(), Settings.Secure.TV_INPUT_HIDDEN_INPUTS, userId);
Set<String> set = new HashSet<>();
if (TextUtils.isEmpty(hiddenIdsString)) {
return set;
}
String[] ids = hiddenIdsString.split(TV_INPUT_SEPARATOR);
for (String id : ids) {
set.add(Uri.decode(id));
}
return set;
}
/**
* Returns a map of TV input ID/custom label pairs set by the user in the settings.
*
* @param context The application context
* @param userId The user ID for the stored hidden input map
* @hide
*/
@SystemApi
public static Map<String, String> getCustomLabels(Context context, int userId) {
String labelsString = Settings.Secure.getStringForUser(
context.getContentResolver(), Settings.Secure.TV_INPUT_CUSTOM_LABELS, userId);
Map<String, String> map = new HashMap<>();
if (TextUtils.isEmpty(labelsString)) {
return map;
}
String[] pairs = labelsString.split(TV_INPUT_SEPARATOR);
for (String pairString : pairs) {
String[] pair = pairString.split(CUSTOM_NAME_SEPARATOR);
map.put(Uri.decode(pair[0]), Uri.decode(pair[1]));
}
return map;
}
/**
* Stores a set of TV input IDs which are marked as hidden by user. This is expected to
* be called from the settings app.
*
* @param context The application context
* @param hiddenInputIds A set including all the hidden TV input IDs
* @param userId The user ID for the stored hidden input set
* @hide
*/
@SystemApi
public static void putHiddenTvInputs(Context context, Set<String> hiddenInputIds,
int userId) {
StringBuilder builder = new StringBuilder();
boolean firstItem = true;
for (String inputId : hiddenInputIds) {
ensureValidField(inputId);
if (firstItem) {
firstItem = false;
} else {
builder.append(TV_INPUT_SEPARATOR);
}
builder.append(Uri.encode(inputId));
}
Settings.Secure.putStringForUser(context.getContentResolver(),
Settings.Secure.TV_INPUT_HIDDEN_INPUTS, builder.toString(), userId);
}
/**
* Stores a map of TV input ID/custom label set by user. This is expected to be
* called from the settings app.
*
* @param context The application context.
* @param customLabels A map of TV input ID/custom label pairs
* @param userId The user ID for the stored hidden input map
* @hide
*/
@SystemApi
public static void putCustomLabels(Context context,
Map<String, String> customLabels, int userId) {
StringBuilder builder = new StringBuilder();
boolean firstItem = true;
for (Map.Entry<String, String> entry: customLabels.entrySet()) {
ensureValidField(entry.getKey());
ensureValidField(entry.getValue());
if (firstItem) {
firstItem = false;
} else {
builder.append(TV_INPUT_SEPARATOR);
}
builder.append(Uri.encode(entry.getKey()));
builder.append(CUSTOM_NAME_SEPARATOR);
builder.append(Uri.encode(entry.getValue()));
}
Settings.Secure.putStringForUser(context.getContentResolver(),
Settings.Secure.TV_INPUT_CUSTOM_LABELS, builder.toString(), userId);
}
private static void ensureValidField(String value) {
if (TextUtils.isEmpty(value)) {
throw new IllegalArgumentException(value + " should not empty ");
}
}
}
}