结对冲刺12

实现SignActivity

  1 package com.example.chatapptest.activities;
  2 
  3 import androidx.appcompat.app.AppCompatActivity;
  4 
  5 import android.content.Intent;
  6 import android.os.Bundle;
  7 import android.util.Patterns;
  8 import android.view.View;
  9 import android.widget.Toast;
 10 
 11 import com.example.chatapptest.R;
 12 import com.example.chatapptest.databinding.ActivitySignInBinding;
 13 import com.example.chatapptest.utilities.Constants;
 14 import com.example.chatapptest.utilities.PreferenceManager;
 15 import com.google.firebase.firestore.DocumentSnapshot;
 16 import com.google.firebase.firestore.FirebaseFirestore;
 17 
 18 import java.util.HashMap;
 19 
 20 public class SignInActivity extends AppCompatActivity {
 21     private ActivitySignInBinding binding;
 22     private PreferenceManager preferenceManager;
 23 
 24     @Override
 25     protected void onCreate(Bundle savedInstanceState) {
 26         super.onCreate(savedInstanceState);
 27         preferenceManager = new PreferenceManager(getApplicationContext());
 28         if(preferenceManager.getBoolean(Constants.KEY_IS_SIGNED_IN)){
 29             Intent intent = new Intent(getApplicationContext(), MainActivity.class);
 30             startActivity(intent);
 31             finish();
 32         }
 33         binding = ActivitySignInBinding.inflate(getLayoutInflater());
 34         setContentView(binding.getRoot());
 35         setListeners();
 36     }
 37 
 38     private void setListeners(){
 39         binding.textCreateNewAccount.setOnClickListener(v ->
 40                 startActivity(new Intent(getApplicationContext(), SignUpActivity.class)));
 41         binding.buttonSignIn.setOnClickListener(v -> {
 42             if(isValidSignInDetails()){
 43                 signIn();
 44             }
 45         });
 46     }
 47 
 48     private void showToast(String message){
 49         Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show();
 50     }
 51 
 52     private void signIn(){
 53         loading(true);
 54         FirebaseFirestore database = FirebaseFirestore.getInstance();
 55         database.collection(Constants.KEY_COLLECTION_USERS)
 56                 .whereEqualTo(Constants.KEY_EMAIL,binding.inputEmail.getText().toString())
 57                 .whereEqualTo(Constants.KEY_PASSWORD,binding.inputPassword.getText().toString())
 58                 .get()
 59                 .addOnCompleteListener(task -> {
 60                     if(task.isSuccessful() && task.getResult() != null
 61                           && task.getResult().getDocuments().size()>0){
 62                         DocumentSnapshot documentSnapshot = task.getResult().getDocuments().get(0);
 63                         preferenceManager.putBoolean(Constants.KEY_IS_SIGNED_IN,true);
 64                         preferenceManager.putString(Constants.KEY_USER_ID, documentSnapshot.getId());
 65                         preferenceManager.putString(Constants.KEY_NAME,documentSnapshot.getString(Constants.KEY_NAME));
 66                         preferenceManager.putString(Constants.KEY_IMAGE,documentSnapshot.getString(Constants.KEY_IMAGE));
 67                         Intent intent = new Intent(getApplicationContext(), MainActivity.class);
 68                         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
 69                         startActivity(intent);
 70                     }else {
 71                         loading(false);
 72                         showToast("Unable to sign in");
 73                     }
 74                 });
 75     }
 76 
 77     private void loading(Boolean isLoading){
 78         if(isLoading){
 79             binding.buttonSignIn.setVisibility(View.INVISIBLE);
 80             binding.progressBar.setVisibility(View.VISIBLE);
 81         }else {
 82             binding.progressBar.setVisibility(View.INVISIBLE);
 83             binding.buttonSignIn.setVisibility(View.VISIBLE);
 84         }
 85     }
 86 
 87     private Boolean isValidSignInDetails(){
 88         if(binding.inputEmail.getText().toString().trim().isEmpty()){
 89             showToast("Enter email");
 90             return false;
 91         } else if (!Patterns.EMAIL_ADDRESS.matcher(binding.inputEmail.getText().toString()).matches()) {
 92             showToast("Enter valid email");
 93             return false;
 94         } else if (binding.inputPassword.getText().toString().trim().isEmpty()) {
 95             showToast("Enter password");
 96             return false;
 97         }else {
 98             return true;
 99         }
100     }
101 }