car/app/app-samples/showcase/common/src/main/java/androidx/car/app/sample/showcase/common/templates/SignInTemplateDemoScreen.java - platform/frameworks/support - Git at Google

 /*
  * Copyright (C) 2021 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 androidx.car.app.sample.showcase.common.templates;

 import static androidx.car.app.CarToast.LENGTH_LONG;

 import android.graphics.Color;
 import android.net.Uri;

 import androidx.activity.OnBackPressedCallback;
 import androidx.annotation.NonNull;
 import androidx.annotation.OptIn;
 import androidx.car.app.CarContext;
 import androidx.car.app.CarToast;
 import androidx.car.app.Screen;
 import androidx.car.app.annotations.ExperimentalCarApi;
 import androidx.car.app.model.Action;
 import androidx.car.app.model.CarColor;
 import androidx.car.app.model.CarIcon;
 import androidx.car.app.model.InputCallback;
 import androidx.car.app.model.MessageTemplate;
 import androidx.car.app.model.ParkedOnlyOnClickListener;
 import androidx.car.app.model.Template;
 import androidx.car.app.model.signin.InputSignInMethod;
 import androidx.car.app.model.signin.PinSignInMethod;
 import androidx.car.app.model.signin.ProviderSignInMethod;
 import androidx.car.app.model.signin.QRCodeSignInMethod;
 import androidx.car.app.model.signin.SignInTemplate;
 import androidx.car.app.sample.showcase.common.R;
 import androidx.car.app.sample.showcase.common.common.Utils;
 import androidx.car.app.versioning.CarAppApiLevels;
 import androidx.core.graphics.drawable.IconCompat;

 /** A screen that demonstrates the sign-in template. */
 public class SignInTemplateDemoScreen extends Screen {
     private enum State {
         USERNAME,
         PASSWORD,
         PIN,
         PROVIDER,
         QR_CODE,
         SIGNED_IN,
     }

     private static final String EMAIL_REGEXP = "^(.+)@(.+)$";
     private static final String EXPECTED_PASSWORD = "password";
     private static final int MIN_USERNAME_LENGTH = 5;

     // package private to avoid synthetic accessor
     State mState = State.USERNAME;
     String mLastErrorMessage = ""; // last displayed error message
     String mErrorMessage = "";
     String mUsername = null;

     private final CharSequence mAdditionalText = Utils.clickable("Please review our terms of "
                     + "service", 18, 16,
             () -> getScreenManager().push(new LongMessageTemplateDemoScreen(getCarContext())));

     private final Action mProviderSignInAction = new Action.Builder()
             .setTitle("Google Sign-In")
             .setOnClickListener(ParkedOnlyOnClickListener.create(() -> {
                 mState = State.PROVIDER;
                 invalidate();
             }))
             .build();

     private final Action mPinSignInAction = new Action.Builder()
             .setTitle("Use PIN")
             .setOnClickListener(ParkedOnlyOnClickListener.create(() -> {
                 mState = State.PIN;
                 invalidate();
             }))
             .build();

     private final Action mQRCodeSignInAction = new Action.Builder()
             .setTitle("QR Code")
             .setOnClickListener(ParkedOnlyOnClickListener.create(() -> {
                 mState = State.QR_CODE;
                 invalidate();
             }))
             .build();

     public SignInTemplateDemoScreen(@NonNull CarContext carContext) {
         super(carContext);

         // Handle back pressed events manually, as we use them to navigate between templates within
         // the same screen.
         OnBackPressedCallback callback = new OnBackPressedCallback(true) {
             @Override
             public void handleOnBackPressed() {
                 mErrorMessage = "";
                 if (mState == State.USERNAME || mState == State.SIGNED_IN) {
                     getScreenManager().pop();
                 } else {
                     mState = State.USERNAME;
                     invalidate();
                 }
             }
         };
         carContext.getOnBackPressedDispatcher().addCallback(this, callback);
     }

     @NonNull
     @Override
     public Template onGetTemplate() {
         if (getCarContext().getCarAppApiLevel() < CarAppApiLevels.LEVEL_2) {
             return new MessageTemplate.Builder("Your host doesn't support Sign In template")
                     .setTitle("Incompatible host")
                     .setHeaderAction(Action.BACK)
                     .build();
         }
         switch (mState) {
             case USERNAME:
                 return getUsernameSignInTemplate();
             case PASSWORD:
                 return getPasswordSignInTemplate();
             case PIN:
                 return getPinSignInTemplate();
             case PROVIDER:
                 return getProviderSignInTemplate();
             case QR_CODE:
                 return getQRCodeSignInTemplate();
             case SIGNED_IN:
                 return getSignInCompletedMessageTemplate();
         }
         throw new IllegalStateException("Invalid state: " + mState);
     }

     private Template getUsernameSignInTemplate() {
         InputCallback listener = new InputCallback() {
             @Override
             public void onInputSubmitted(@NonNull String text) {
                 if (mState == State.USERNAME) {
                     mUsername = text;
                     submitUsername();
                 }
             }

             @Override
             public void onInputTextChanged(@NonNull String text) {
                 // This callback demonstrates how to use handle the text changed event.
                 // In this case, we check that the user name doesn't exceed a certain length.
                 if (mState == State.USERNAME) {
                     mUsername = text;
                     mErrorMessage = validateUsername();

                     // Invalidate the template (and hence possibly update the error message) only
                     // if clearing up the error string, or if the error is changing.
                     if (!mLastErrorMessage.isEmpty()
                             && (mErrorMessage.isEmpty()
                             || !mLastErrorMessage.equals(mErrorMessage))) {
                         invalidate();
                     }
                 }
             }
         };

         InputSignInMethod.Builder builder = new InputSignInMethod.Builder(listener)
                 .setHint("Email")
                 .setKeyboardType(InputSignInMethod.KEYBOARD_EMAIL);
         if (mErrorMessage != null) {
             builder.setErrorMessage(mErrorMessage);
             mLastErrorMessage = mErrorMessage;
         }
         if (mUsername != null) {
             builder.setDefaultValue(mUsername);
         }
         InputSignInMethod signInMethod = builder.build();

         return new SignInTemplate.Builder(signInMethod)
                 .addAction(mProviderSignInAction)
                 .addAction(getCarContext().getCarAppApiLevel() > CarAppApiLevels.LEVEL_3
                         ? mQRCodeSignInAction : mPinSignInAction)
                 .setTitle("Sign in")
                 .setInstructions("Enter your credentials")
                 .setHeaderAction(Action.BACK)
                 .setAdditionalText(mAdditionalText)
                 .build();
     }

     /**
      * Validates the currently entered user name and returns an error message string if invalid,
      * or an empty string otherwise.
      */
     String validateUsername() {
         if (mUsername == null || mUsername.length() < MIN_USERNAME_LENGTH) {
             return "User name must be at least " + MIN_USERNAME_LENGTH + " characters "
                     + "long";
         } else if (!mUsername.matches(EMAIL_REGEXP)) {
             return "User name must be a valid email address";
         } else {
             return "";
         }
     }

     /**
      * Moves to the password screen if the user name currently entered is valid, or displays
      * an error message otherwise.
      */
     void submitUsername() {
         mErrorMessage = validateUsername();

         boolean isError = !mErrorMessage.isEmpty();
         if (!isError) {
             // If there's no error, go to the password screen.
             mState = State.PASSWORD;
         } else {
             // If there's an error, display a toast.
             CarToast.makeText(getCarContext(), "Please enter a valid user name",
                     LENGTH_LONG).show();
         }

         // Invalidate the template so that we either display an error, or go to the password screen.
         invalidate();
     }

     private Template getPasswordSignInTemplate() {
         InputCallback callback = new InputCallback() {
             @Override
             public void onInputSubmitted(@NonNull String text) {
                 // Mocked password validation
                 if (!EXPECTED_PASSWORD.equals(text)) {
                     mErrorMessage = "Invalid password";
                 } else {
                     mErrorMessage = "";
                     mState = State.SIGNED_IN;
                 }
                 invalidate();
             }
         };
         InputSignInMethod.Builder builder = new InputSignInMethod.Builder(callback)
                 .setHint("Password")
                 .setInputType(InputSignInMethod.INPUT_TYPE_PASSWORD);
         if (mErrorMessage != null) {
             builder.setErrorMessage(mErrorMessage);
         }
         InputSignInMethod signInMethod = builder.build();

         return new SignInTemplate.Builder(signInMethod)
                 .addAction(mProviderSignInAction)
                 .addAction(getCarContext().getCarAppApiLevel() > CarAppApiLevels.LEVEL_3
                         ? mQRCodeSignInAction : mPinSignInAction)
                 .setTitle("Sign in")
                 .setInstructions("Username: " + mUsername)
                 .setHeaderAction(Action.BACK)
                 .setAdditionalText(mAdditionalText)
                 .build();
     }

     private Template getPinSignInTemplate() {
         PinSignInMethod pinSignInMethod = new PinSignInMethod("123456789ABC");
         return new SignInTemplate.Builder(pinSignInMethod)
                 .setTitle("Sign in")
                 .setInstructions("Type this PIN in your phone")
                 .setHeaderAction(Action.BACK)
                 .setAdditionalText(mAdditionalText)
                 .build();
     }

     @OptIn(markerClass = ExperimentalCarApi.class)
     private Template getQRCodeSignInTemplate() {
         QRCodeSignInMethod qrCodeSignInMethod = new QRCodeSignInMethod(Uri.parse("https://www"
                 + ".youtube.com/watch?v=dQw4w9WgXcQ"));
         return new SignInTemplate.Builder(qrCodeSignInMethod)
                 .setTitle("Scan QR Code to sign in")
                 .setHeaderAction(Action.BACK)
                 .setAdditionalText(mAdditionalText)
                 .addAction(mPinSignInAction)
                 .addAction(mProviderSignInAction)
                 .build();
     }

     private Template getProviderSignInTemplate() {
         IconCompat providerIcon = IconCompat.createWithResource(getCarContext(),
                 R.drawable.ic_googleg);
         CarColor noTint = CarColor.createCustom(Color.TRANSPARENT, Color.TRANSPARENT);

         ProviderSignInMethod providerSignInMethod = new ProviderSignInMethod(
                 new Action.Builder()
                         .setTitle(Utils.colorize("Sign in with Google",
                                 CarColor.createCustom(Color.BLACK, Color.BLACK), 0, 19))
                         .setBackgroundColor(CarColor.createCustom(Color.WHITE, Color.WHITE))
                         .setIcon(new CarIcon.Builder(providerIcon)
                                 .setTint(noTint)
                                 .build())
                         .setOnClickListener(ParkedOnlyOnClickListener.create(
                                 this::performSignInWithGoogleFlow)).build());

         return new SignInTemplate.Builder(providerSignInMethod)
                 .setTitle("Sign in")
                 .setInstructions("Use this button to complete your Google sign-in")
                 .setHeaderAction(Action.BACK)
                 .setAdditionalText(mAdditionalText)
                 .build();
     }

     private void performSignInWithGoogleFlow() {
         // This is here for demonstration purposes, if the APK is not signed with a signature
         // that has been registered for sign in with Google flow, the sign in will fail at runtime.

 //        Bundle extras = new Bundle(1);
 //        extras.putBinder(BINDER_KEY, new SignInWithGoogleActivity.OnSignInComplete() {
 //            @Override
 //            public void onSignInComplete(@Nullable GoogleSignInAccount account) {
 //                if (account == null) {
 //                    CarToast.makeText(getCarContext(), "Error signing in", LENGTH_LONG).show();
 //                    return;
 //                }
 //
 //                // Use the account
 //                CarToast.makeText(getCarContext(),
 //                        account.getGivenName() + " signed in", LENGTH_LONG).show();
 //            }
 //        });
 //        getCarContext().startActivity(
 //                new Intent()
 //                        .setClass(getCarContext(), SignInWithGoogleActivity.class)
 //                        .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
 //                        .putExtras(extras));
         CarToast.makeText(getCarContext(), "Sign-in with Google starts here", LENGTH_LONG)
                 .show();
     }

     private MessageTemplate getSignInCompletedMessageTemplate() {
         return new MessageTemplate.Builder("You are signed in!")
                 .setTitle("Sign in completed")
                 .setHeaderAction(Action.BACK)
                 .addAction(new Action.Builder()
                         .setTitle("Sign out")
                         .setOnClickListener(() -> {
                             mState = State.USERNAME;
                             invalidate();
                         })
                         .build())
                 .build();
     }

 }
	/*
	* Copyright (C) 2021 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 androidx.car.app.sample.showcase.common.templates;

	import static androidx.car.app.CarToast.LENGTH_LONG;

	import android.graphics.Color;
	import android.net.Uri;

	import androidx.activity.OnBackPressedCallback;
	import androidx.annotation.NonNull;
	import androidx.annotation.OptIn;
	import androidx.car.app.CarContext;
	import androidx.car.app.CarToast;
	import androidx.car.app.Screen;
	import androidx.car.app.annotations.ExperimentalCarApi;
	import androidx.car.app.model.Action;
	import androidx.car.app.model.CarColor;
	import androidx.car.app.model.CarIcon;
	import androidx.car.app.model.InputCallback;
	import androidx.car.app.model.MessageTemplate;
	import androidx.car.app.model.ParkedOnlyOnClickListener;
	import androidx.car.app.model.Template;
	import androidx.car.app.model.signin.InputSignInMethod;
	import androidx.car.app.model.signin.PinSignInMethod;
	import androidx.car.app.model.signin.ProviderSignInMethod;
	import androidx.car.app.model.signin.QRCodeSignInMethod;
	import androidx.car.app.model.signin.SignInTemplate;
	import androidx.car.app.sample.showcase.common.R;
	import androidx.car.app.sample.showcase.common.common.Utils;
	import androidx.car.app.versioning.CarAppApiLevels;
	import androidx.core.graphics.drawable.IconCompat;

	/** A screen that demonstrates the sign-in template. */
	public class SignInTemplateDemoScreen extends Screen {
	private enum State {
	USERNAME,
	PASSWORD,
	PIN,
	PROVIDER,
	QR_CODE,
	SIGNED_IN,
	}

	private static final String EMAIL_REGEXP = "^(.+)@(.+)$";
	private static final String EXPECTED_PASSWORD = "password";
	private static final int MIN_USERNAME_LENGTH = 5;

	// package private to avoid synthetic accessor
	State mState = State.USERNAME;
	String mLastErrorMessage = ""; // last displayed error message
	String mErrorMessage = "";
	String mUsername = null;

	private final CharSequence mAdditionalText = Utils.clickable("Please review our terms of "
	+ "service", 18, 16,
	() -> getScreenManager().push(new LongMessageTemplateDemoScreen(getCarContext())));

	private final Action mProviderSignInAction = new Action.Builder()
	.setTitle("Google Sign-In")
	.setOnClickListener(ParkedOnlyOnClickListener.create(() -> {
	mState = State.PROVIDER;
	invalidate();
	}))
	.build();

	private final Action mPinSignInAction = new Action.Builder()
	.setTitle("Use PIN")
	.setOnClickListener(ParkedOnlyOnClickListener.create(() -> {
	mState = State.PIN;
	invalidate();
	}))
	.build();

	private final Action mQRCodeSignInAction = new Action.Builder()
	.setTitle("QR Code")
	.setOnClickListener(ParkedOnlyOnClickListener.create(() -> {
	mState = State.QR_CODE;
	invalidate();
	}))
	.build();

	public SignInTemplateDemoScreen(@NonNull CarContext carContext) {
	super(carContext);

	// Handle back pressed events manually, as we use them to navigate between templates within
	// the same screen.
	OnBackPressedCallback callback = new OnBackPressedCallback(true) {
	@Override
	public void handleOnBackPressed() {
	mErrorMessage = "";
	if (mState == State.USERNAME \|\| mState == State.SIGNED_IN) {
	getScreenManager().pop();
	} else {
	mState = State.USERNAME;
	invalidate();
	}
	}
	};
	carContext.getOnBackPressedDispatcher().addCallback(this, callback);
	}

	@NonNull
	@Override
	public Template onGetTemplate() {
	if (getCarContext().getCarAppApiLevel() < CarAppApiLevels.LEVEL_2) {
	return new MessageTemplate.Builder("Your host doesn't support Sign In template")
	.setTitle("Incompatible host")
	.setHeaderAction(Action.BACK)
	.build();
	}
	switch (mState) {
	case USERNAME:
	return getUsernameSignInTemplate();
	case PASSWORD:
	return getPasswordSignInTemplate();
	case PIN:
	return getPinSignInTemplate();
	case PROVIDER:
	return getProviderSignInTemplate();
	case QR_CODE:
	return getQRCodeSignInTemplate();
	case SIGNED_IN:
	return getSignInCompletedMessageTemplate();
	}
	throw new IllegalStateException("Invalid state: " + mState);
	}

	private Template getUsernameSignInTemplate() {
	InputCallback listener = new InputCallback() {
	@Override
	public void onInputSubmitted(@NonNull String text) {
	if (mState == State.USERNAME) {
	mUsername = text;
	submitUsername();
	}
	}

	@Override
	public void onInputTextChanged(@NonNull String text) {
	// This callback demonstrates how to use handle the text changed event.
	// In this case, we check that the user name doesn't exceed a certain length.
	if (mState == State.USERNAME) {
	mUsername = text;
	mErrorMessage = validateUsername();

	// Invalidate the template (and hence possibly update the error message) only
	// if clearing up the error string, or if the error is changing.
	if (!mLastErrorMessage.isEmpty()
	&& (mErrorMessage.isEmpty()
	\|\| !mLastErrorMessage.equals(mErrorMessage))) {
	invalidate();
	}
	}
	}
	};

	InputSignInMethod.Builder builder = new InputSignInMethod.Builder(listener)
	.setHint("Email")
	.setKeyboardType(InputSignInMethod.KEYBOARD_EMAIL);
	if (mErrorMessage != null) {
	builder.setErrorMessage(mErrorMessage);
	mLastErrorMessage = mErrorMessage;
	}
	if (mUsername != null) {
	builder.setDefaultValue(mUsername);
	}
	InputSignInMethod signInMethod = builder.build();

	return new SignInTemplate.Builder(signInMethod)
	.addAction(mProviderSignInAction)
	.addAction(getCarContext().getCarAppApiLevel() > CarAppApiLevels.LEVEL_3
	? mQRCodeSignInAction : mPinSignInAction)
	.setTitle("Sign in")
	.setInstructions("Enter your credentials")
	.setHeaderAction(Action.BACK)
	.setAdditionalText(mAdditionalText)
	.build();
	}

	/**
	* Validates the currently entered user name and returns an error message string if invalid,
	* or an empty string otherwise.
	*/
	String validateUsername() {
	if (mUsername == null \|\| mUsername.length() < MIN_USERNAME_LENGTH) {
	return "User name must be at least " + MIN_USERNAME_LENGTH + " characters "
	+ "long";
	} else if (!mUsername.matches(EMAIL_REGEXP)) {
	return "User name must be a valid email address";
	} else {
	return "";
	}
	}

	/**
	* Moves to the password screen if the user name currently entered is valid, or displays
	* an error message otherwise.
	*/
	void submitUsername() {
	mErrorMessage = validateUsername();

	boolean isError = !mErrorMessage.isEmpty();
	if (!isError) {
	// If there's no error, go to the password screen.
	mState = State.PASSWORD;
	} else {
	// If there's an error, display a toast.
	CarToast.makeText(getCarContext(), "Please enter a valid user name",
	LENGTH_LONG).show();
	}

	// Invalidate the template so that we either display an error, or go to the password screen.
	invalidate();
	}

	private Template getPasswordSignInTemplate() {
	InputCallback callback = new InputCallback() {
	@Override
	public void onInputSubmitted(@NonNull String text) {
	// Mocked password validation
	if (!EXPECTED_PASSWORD.equals(text)) {
	mErrorMessage = "Invalid password";
	} else {
	mErrorMessage = "";
	mState = State.SIGNED_IN;
	}
	invalidate();
	}
	};
	InputSignInMethod.Builder builder = new InputSignInMethod.Builder(callback)
	.setHint("Password")
	.setInputType(InputSignInMethod.INPUT_TYPE_PASSWORD);
	if (mErrorMessage != null) {
	builder.setErrorMessage(mErrorMessage);
	}
	InputSignInMethod signInMethod = builder.build();

	return new SignInTemplate.Builder(signInMethod)
	.addAction(mProviderSignInAction)
	.addAction(getCarContext().getCarAppApiLevel() > CarAppApiLevels.LEVEL_3
	? mQRCodeSignInAction : mPinSignInAction)
	.setTitle("Sign in")
	.setInstructions("Username: " + mUsername)
	.setHeaderAction(Action.BACK)
	.setAdditionalText(mAdditionalText)
	.build();
	}

	private Template getPinSignInTemplate() {
	PinSignInMethod pinSignInMethod = new PinSignInMethod("123456789ABC");
	return new SignInTemplate.Builder(pinSignInMethod)
	.setTitle("Sign in")
	.setInstructions("Type this PIN in your phone")
	.setHeaderAction(Action.BACK)
	.setAdditionalText(mAdditionalText)
	.build();
	}

	@OptIn(markerClass = ExperimentalCarApi.class)
	private Template getQRCodeSignInTemplate() {
	QRCodeSignInMethod qrCodeSignInMethod = new QRCodeSignInMethod(Uri.parse("https://www"
	+ ".youtube.com/watch?v=dQw4w9WgXcQ"));
	return new SignInTemplate.Builder(qrCodeSignInMethod)
	.setTitle("Scan QR Code to sign in")
	.setHeaderAction(Action.BACK)
	.setAdditionalText(mAdditionalText)
	.addAction(mPinSignInAction)
	.addAction(mProviderSignInAction)
	.build();
	}

	private Template getProviderSignInTemplate() {
	IconCompat providerIcon = IconCompat.createWithResource(getCarContext(),
	R.drawable.ic_googleg);
	CarColor noTint = CarColor.createCustom(Color.TRANSPARENT, Color.TRANSPARENT);

	ProviderSignInMethod providerSignInMethod = new ProviderSignInMethod(
	new Action.Builder()
	.setTitle(Utils.colorize("Sign in with Google",
	CarColor.createCustom(Color.BLACK, Color.BLACK), 0, 19))
	.setBackgroundColor(CarColor.createCustom(Color.WHITE, Color.WHITE))
	.setIcon(new CarIcon.Builder(providerIcon)
	.setTint(noTint)
	.build())
	.setOnClickListener(ParkedOnlyOnClickListener.create(
	this::performSignInWithGoogleFlow)).build());

	return new SignInTemplate.Builder(providerSignInMethod)
	.setTitle("Sign in")
	.setInstructions("Use this button to complete your Google sign-in")
	.setHeaderAction(Action.BACK)
	.setAdditionalText(mAdditionalText)
	.build();
	}

	private void performSignInWithGoogleFlow() {
	// This is here for demonstration purposes, if the APK is not signed with a signature
	// that has been registered for sign in with Google flow, the sign in will fail at runtime.

	// Bundle extras = new Bundle(1);
	// extras.putBinder(BINDER_KEY, new SignInWithGoogleActivity.OnSignInComplete() {
	// @Override
	// public void onSignInComplete(@Nullable GoogleSignInAccount account) {
	// if (account == null) {
	// CarToast.makeText(getCarContext(), "Error signing in", LENGTH_LONG).show();
	// return;
	// }
	//
	// // Use the account
	// CarToast.makeText(getCarContext(),
	// account.getGivenName() + " signed in", LENGTH_LONG).show();
	// }
	// });
	// getCarContext().startActivity(
	// new Intent()
	// .setClass(getCarContext(), SignInWithGoogleActivity.class)
	// .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
	// .putExtras(extras));
	CarToast.makeText(getCarContext(), "Sign-in with Google starts here", LENGTH_LONG)
	.show();
	}

	private MessageTemplate getSignInCompletedMessageTemplate() {
	return new MessageTemplate.Builder("You are signed in!")
	.setTitle("Sign in completed")
	.setHeaderAction(Action.BACK)
	.addAction(new Action.Builder()
	.setTitle("Sign out")
	.setOnClickListener(() -> {
	mState = State.USERNAME;
	invalidate();
	})
	.build())
	.build();
	}

	}