UI modifications for user picker
Test: tested on Mojave
bug: 75023449
Change-Id: Ia991ca9ed9424d0008ca2328f28c0900e8d5653a
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java b/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java
new file mode 100644
index 0000000..e09a360
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/car/UserGridRecyclerView.java
@@ -0,0 +1,360 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.systemui.statusbar.car;
+
+import android.app.ActivityManager;
+import android.content.Context;
+import android.content.pm.UserInfo;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Paint.Align;
+import android.graphics.drawable.GradientDrawable;
+import android.os.AsyncTask;
+import android.support.annotation.Nullable;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.RecyclerView.ViewHolder;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.android.settingslib.users.UserManagerHelper;
+import com.android.systemui.R;
+import com.android.systemui.qs.car.CarQSFragment;
+import com.android.systemui.statusbar.phone.StatusBar;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Displays a GridLayout with icons for the users in the system to allow switching between users.
+ * One of the uses of this is for the lock screen in auto.
+ */
+public class UserGridRecyclerView extends RecyclerView implements
+ UserManagerHelper.OnUsersUpdateListener {
+
+ private StatusBar mStatusBar;
+ private UserSelectionListener mUserSelectionListener;
+ private UserAdapter mAdapter;
+ private UserManagerHelper mUserManagerHelper;
+ private Context mContext;
+
+ public UserGridRecyclerView(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ super.setHasFixedSize(true);
+ mContext = context;
+ mUserManagerHelper = new UserManagerHelper(mContext);
+ }
+
+ /**
+ * Register listener for any update to the users
+ */
+ @Override
+ public void onFinishInflate() {
+ mUserManagerHelper.registerOnUsersUpdateListener(this);
+ }
+
+ /**
+ * Unregisters listener checking for any change to the users
+ */
+ @Override
+ public void onDetachedFromWindow() {
+ mUserManagerHelper.unregisterOnUsersUpdateListener();
+ }
+
+ /**
+ * Initializes the adapter that populates the grid layout
+ *
+ * @return the adapter
+ */
+ public void buildAdapter() {
+ List<UserRecord> userRecords = createUserRecords(mUserManagerHelper
+ .getAllUsers());
+ mAdapter = new UserAdapter(mContext, userRecords);
+ super.setAdapter(mAdapter);
+ }
+
+ public void setStatusBar(@Nullable StatusBar statusBar) {
+ mStatusBar = statusBar;
+ }
+
+ private List<UserRecord> createUserRecords(List<UserInfo> userInfoList) {
+ List<UserRecord> userRecords = new ArrayList<>();
+ for (UserInfo userInfo : userInfoList) {
+ boolean isCurrent = false;
+ if (ActivityManager.getCurrentUser() == userInfo.id) {
+ isCurrent = true;
+ }
+ UserRecord record = new UserRecord(userInfo, false /* isGuest */,
+ false /* isAddUser */, isCurrent);
+ userRecords.add(record);
+ }
+
+ // Add guest user record if the current user is not a guest
+ if (!mUserManagerHelper.isGuestUser()) {
+ userRecords.add(addGuestUserRecord());
+ }
+
+ // Add add user record if the current user can add users
+ if (mUserManagerHelper.canAddUsers()) {
+ userRecords.add(addUserRecord());
+ }
+
+ return userRecords;
+ }
+
+ /**
+ * Create guest user record
+ */
+ private UserRecord addGuestUserRecord() {
+ UserInfo userInfo = new UserInfo();
+ userInfo.name = mContext.getString(R.string.car_guest);
+ return new UserRecord(userInfo, true /* isGuest */,
+ false /* isAddUser */, false /* isCurrent */);
+ }
+
+ /**
+ * Create add user record
+ */
+ private UserRecord addUserRecord() {
+ UserInfo userInfo = new UserInfo();
+ userInfo.name = mContext.getString(R.string.car_add_user);
+ return new UserRecord(userInfo, false /* isGuest */,
+ true /* isAddUser */, false /* isCurrent */);
+ }
+
+ public void onUserSwitched(int newUserId) {
+ // Bring up security view after user switch is completed.
+ post(this::showOfflineAuthUi);
+ }
+
+ public void setUserSelectionListener(UserSelectionListener userSelectionListener) {
+ mUserSelectionListener = userSelectionListener;
+ }
+
+ void showOfflineAuthUi() {
+ // TODO: Show keyguard UI in-place.
+ if (mStatusBar != null) {
+ mStatusBar.executeRunnableDismissingKeyguard(null/* runnable */, null /* cancelAction */,
+ true /* dismissShade */, true /* afterKeyguardGone */, true /* deferred */);
+ }
+ }
+
+ @Override
+ public void onUsersUpdate() {
+ mAdapter.clearUsers();
+ mAdapter.updateUsers(createUserRecords(mUserManagerHelper.getAllUsers()));
+ mAdapter.notifyDataSetChanged();
+ }
+
+ /**
+ * Adapter to populate the grid layout with the available user profiles
+ */
+ public final class UserAdapter extends RecyclerView.Adapter<UserAdapter.UserAdapterViewHolder> {
+
+ private final Context mContext;
+ private List<UserRecord> mUsers;
+ private final int mPodImageAvatarWidth;
+ private final int mPodImageAvatarHeight;
+ private final Resources mRes;
+ private final String mGuestName;
+ private final String mNewUserName;
+
+ public UserAdapter(Context context, List<UserRecord> users) {
+ mRes = context.getResources();
+ mContext = context;
+ updateUsers(users);
+ mPodImageAvatarWidth = mRes.getDimensionPixelSize(
+ R.dimen.car_fullscreen_user_pod_image_avatar_width);
+ mPodImageAvatarHeight = mRes.getDimensionPixelSize(
+ R.dimen.car_fullscreen_user_pod_image_avatar_height);
+ mGuestName = mRes.getString(R.string.car_guest);
+ mNewUserName = mRes.getString(R.string.car_new_user);
+ }
+
+ public void clearUsers() {
+ mUsers.clear();
+ }
+
+ public void updateUsers(List<UserRecord> users) {
+ mUsers = users;
+ }
+
+ @Override
+ public UserAdapterViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+ View view = LayoutInflater.from(mContext)
+ .inflate(R.layout.car_fullscreen_user_pod, parent, false);
+ view.setAlpha(1f);
+ view.bringToFront();
+ return new UserAdapterViewHolder(view);
+ }
+
+ @Override
+ public void onBindViewHolder(UserAdapterViewHolder holder, int position) {
+ UserRecord userRecord = mUsers.get(position);
+ holder.mUserAvatarImageView.setImageBitmap(getDefaultUserIcon(userRecord));
+ holder.mUserNameTextView.setText(userRecord.mInfo.name);
+ holder.mView.setOnClickListener(v -> {
+ if (userRecord == null) {
+ return;
+ }
+
+ // Notify the listener which user was selected
+ if (mUserSelectionListener != null) {
+ mUserSelectionListener.onUserSelected(userRecord);
+ }
+
+ // If the user selects Guest, switch to Guest profile
+ if (userRecord.mIsGuest) {
+ mUserManagerHelper.switchToGuest(mGuestName);
+ return;
+ }
+
+ // If the user wants to add a user, start task to add new user
+ if (userRecord.mIsAddUser) {
+ new AddNewUserTask().execute(mNewUserName);
+ return;
+ }
+
+ // If the user doesn't want to be a guest or add a user, switch to the user selected
+ mUserManagerHelper.switchToUser(userRecord.mInfo);
+ });
+
+ }
+
+ private class AddNewUserTask extends AsyncTask<String, Void, UserInfo> {
+
+ @Override
+ protected UserInfo doInBackground(String... userNames) {
+ return mUserManagerHelper.createNewUser(userNames[0]);
+ }
+
+ @Override
+ protected void onPreExecute() {
+ }
+
+ @Override
+ protected void onPostExecute(UserInfo user) {
+ if (user != null) {
+ mUserManagerHelper.switchToUser(user);
+ }
+ }
+ }
+
+ @Override
+ public int getItemCount() {
+ return mUsers.size();
+ }
+
+ /**
+ * Returns the default user icon. This icon is a circle with a letter in it. The letter is
+ * the first character in the username.
+ *
+ * @param record the profile of the user for which the icon should be created
+ */
+ private Bitmap getDefaultUserIcon(UserRecord record) {
+ CharSequence displayText;
+ boolean isAddUserText = false;
+ if (record.mIsAddUser) {
+ displayText = "+";
+ isAddUserText = true;
+ } else {
+ displayText = record.mInfo.name.subSequence(0, 1);
+ }
+ Bitmap out = Bitmap.createBitmap(mPodImageAvatarWidth, mPodImageAvatarHeight,
+ Bitmap.Config.ARGB_8888);
+ Canvas canvas = new Canvas(out);
+
+ // Draw the circle background.
+ GradientDrawable shape = new GradientDrawable();
+ shape.setShape(GradientDrawable.RADIAL_GRADIENT);
+ shape.setGradientRadius(1.0f);
+ shape.setColor(mContext.getColor(R.color.car_user_switcher_no_user_image_bgcolor));
+ shape.setBounds(0, 0, mPodImageAvatarWidth, mPodImageAvatarHeight);
+ shape.draw(canvas);
+
+ // Draw the letter in the center.
+ Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
+ paint.setColor(mContext.getColor(R.color.car_user_switcher_no_user_image_fgcolor));
+ paint.setTextAlign(Align.CENTER);
+ if (isAddUserText) {
+ paint.setTextSize(mRes.getDimensionPixelSize(
+ R.dimen.car_touch_target_size));
+ } else {
+ paint.setTextSize(mRes.getDimensionPixelSize(
+ R.dimen.car_fullscreen_user_pod_icon_text_size));
+ }
+
+ Paint.FontMetricsInt metrics = paint.getFontMetricsInt();
+ // The Y coordinate is measured by taking half the height of the pod, but that would
+ // draw the character putting the bottom of the font in the middle of the pod. To
+ // correct this, half the difference between the top and bottom distance metrics of the
+ // font gives the offset of the font. Bottom is a positive value, top is negative, so
+ // the different is actually a sum. The "half" operation is then factored out.
+ canvas.drawText(displayText.toString(), mPodImageAvatarWidth / 2,
+ (mPodImageAvatarHeight - (metrics.bottom + metrics.top)) / 2, paint);
+
+ return out;
+ }
+
+ public class UserAdapterViewHolder extends RecyclerView.ViewHolder {
+
+ public ImageView mUserAvatarImageView;
+ public TextView mUserNameTextView;
+ public View mView;
+
+ public UserAdapterViewHolder(View view) {
+ super(view);
+ mView = view;
+ mUserAvatarImageView = (ImageView) view.findViewById(R.id.user_avatar);
+ mUserNameTextView = (TextView) view.findViewById(R.id.user_name);
+ }
+ }
+ }
+
+ /**
+ * Object wrapper class for the userInfo. Use it to distinguish if a profile is a
+ * guest profile, add user profile, or a current user.
+ */
+ public static final class UserRecord {
+
+ public final UserInfo mInfo;
+ public final boolean mIsGuest;
+ public final boolean mIsAddUser;
+ public final boolean mIsCurrent;
+
+ public UserRecord(UserInfo userInfo, boolean isGuest, boolean isAddUser,
+ boolean isCurrent) {
+ mInfo = userInfo;
+ mIsGuest = isGuest;
+ mIsAddUser = isAddUser;
+ mIsCurrent = isCurrent;
+ }
+ }
+
+ /**
+ * Listener used to notify when a user has been selected
+ */
+ interface UserSelectionListener {
+
+ void onUserSelected(UserRecord record);
+ }
+}