英文:
Android - getCurrentUser() returns null when opening an activity from notification
问题
我有一个应用程序，如果用户已登录，他将收到通知。当他点击通知时，他将被重定向到HomeActivity。我有一个在每次打开应用程序时运行的类，用于检查用户是否已登录。如果他已登录，他将被引导到HomeActivity，否则将被引导到RestaurantAuthActivity。
问题是，当我登录用户并点击收到的通知时，它会将我重定向到特定的活动，但当我关闭应用程序并尝试重新启动时，它会将我重定向到RestaurantAuthActivity。经过检查，我发现当我从通知中被引导到HomeActivity时，getCurrentUser() 返回null，而它不应为null。
在HomeActivity中，我有一个单独的“登出”按钮，用于登出用户。
在每次启动应用程序时，Home.class 都会检查用户是否已登录。
public class Home extends Application {
@Override
public void onCreate() {
super.onCreate();
FirebaseAuth firebaseAuth = FirebaseAuth.getInstance();
FirebaseUser firebaseUser = firebaseAuth.getCurrentUser();
SharedPreferences sharedPreferences = getSharedPreferences("RestaurantInfo", MODE_PRIVATE);
String restaurantID = sharedPreferences.getString("RestaurantID", "");
if (firebaseUser != null) {
System.out.println("FirebaseUSER: " + firebaseUser);
Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
} else {
System.out.println("FirebaseUSER inside false: " + firebaseUser);
Intent intent = new Intent(getApplicationContext(), RestaurantAuthActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
}
}
}
根据XML，RestaurantAuthActivity 是我的启动活动。之所以仍然将我引导到HomeActivity，是因为在RestaurantAuthActivity 中有以下代码片段。
if (getIntent().hasExtra("page")) {
System.out.println("Inside getIntent()");
Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
}
有人能帮助我解决这个问题吗！
英文:
I've an app where if a user is signed in, he will receive notifications. When he clicks on the notifications he will be redirected to a HomeActivity. I have a class that runs whenever the app is opened, to check if a user is signed in or not. If he is signed in he will be directed to HomeActivity or else RestaurantAuthActivity.
The issue is when I sign in the user and click on the notification received, it is redirecting me that specific activity, but when I close the app and try to start it again, it redirects me to RestaurantAuthActivity. On checking, I see that when I'm directed to HomeActivity form the notification, the getCurrentUser() returns null, which should not be null.
I've a separate "Sign Out" button in HomeActivity which signs out the user.
Home.class checks if a user is signed in or not whenever the app is started
public class Home extends Application {
@Override
public void onCreate() {
super.onCreate();
FirebaseAuth firebaseAuth = FirebaseAuth.getInstance();
FirebaseUser firebaseUser = firebaseAuth.getCurrentUser();
SharedPreferences sharedPreferences = getSharedPreferences("RestaurantInfo", MODE_PRIVATE);
String restaurantID = sharedPreferences.getString("RestaurantID", "");
if (firebaseUser != null) {
System.out.println("FirebaseUSER: " + firebaseUser);
Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
} else {
System.out.println("FirebaseUSER inside false: " + firebaseUser);
Intent intent = new Intent(getApplicationContext(), RestaurantAuthActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
}
}
}
As per XML, the RestaurantAuthActivity is my launcher activity. The reason why it is still directing me to HomeActivity is because of the below code snippet in RestaurantAuthActivity.
if (getIntent().hasExtra("page")) {
System.out.println("Inside getIntent()");
Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
}
Could someone help me on this!
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