在应用程序上注销 firebase 后,后退按钮将带回主页
Back button will bring to home page after firebase logout on app
我的问题与此非常相似post:(When I press back button on login page it will go to main menu (after I select yes for logout in MainMenu activity))。
基本上,即使在我 select "YES" 选择注销后,它也会让我回到缩进页面(登录页面)。然而,当我按下实际 phone (S7 Edge+) 和 2 个模拟器(Nexus 4 和 Pixel 2 XL)上的后退按钮时,它再次将我带到仪表板页面,但它不应该那样。
**我试过的是将 finish() 添加到注销功能和菜单中,如下所示:
注销function/method
private void Logout(){
firebaseAuth.signOut();
finish();
startActivity(new Intent(SecondActivity.this, MainActivity.class));
finish();
}
菜单
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.logoutMenu: {
final AlertDialog.Builder builder = new AlertDialog.Builder(SecondActivity.this);
builder.setMessage("Are you sure you want to logout?");
builder.setCancelable(true);
builder.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
startActivity(new Intent(SecondActivity.this, SecondActivity.class));
}
});
builder.setPositiveButton("YES", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(SecondActivity.this, "You are succesfully signed out!", Toast.LENGTH_LONG).show();
Logout();
finish();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
break;
}
case R.id.profileMenu: {
startActivity(new Intent(SecondActivity.this, UpdateProfileActivity.class));
break;
}
case R.id.passwordMenu: {
startActivity(new Intent(SecondActivity.this, UpdatePasswordActivity.class));
break;
}
}
return super.onOptionsItemSelected(item);
}
问题仍然存在。 logcat 中没有发现错误,所以我不确定如何解决这个问题?
有人有解决办法吗?请指导我。
谢谢。
private void Logout(){
firebaseAuth.signOut();
Intent intent = new Intent(SecondActivity.this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
finish();
}
**试试这个**
所以对作者有效的实际解决方案是使用 finishAffinity()
但不是公认的答案。这对我也有用。
我的问题与此非常相似post:(When I press back button on login page it will go to main menu (after I select yes for logout in MainMenu activity))。
基本上,即使在我 select "YES" 选择注销后,它也会让我回到缩进页面(登录页面)。然而,当我按下实际 phone (S7 Edge+) 和 2 个模拟器(Nexus 4 和 Pixel 2 XL)上的后退按钮时,它再次将我带到仪表板页面,但它不应该那样。
**我试过的是将 finish() 添加到注销功能和菜单中,如下所示:
注销function/method
private void Logout(){
firebaseAuth.signOut();
finish();
startActivity(new Intent(SecondActivity.this, MainActivity.class));
finish();
}
菜单
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.logoutMenu: {
final AlertDialog.Builder builder = new AlertDialog.Builder(SecondActivity.this);
builder.setMessage("Are you sure you want to logout?");
builder.setCancelable(true);
builder.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
startActivity(new Intent(SecondActivity.this, SecondActivity.class));
}
});
builder.setPositiveButton("YES", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(SecondActivity.this, "You are succesfully signed out!", Toast.LENGTH_LONG).show();
Logout();
finish();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
break;
}
case R.id.profileMenu: {
startActivity(new Intent(SecondActivity.this, UpdateProfileActivity.class));
break;
}
case R.id.passwordMenu: {
startActivity(new Intent(SecondActivity.this, UpdatePasswordActivity.class));
break;
}
}
return super.onOptionsItemSelected(item);
}
问题仍然存在。 logcat 中没有发现错误,所以我不确定如何解决这个问题?
有人有解决办法吗?请指导我。
谢谢。
private void Logout(){
firebaseAuth.signOut();
Intent intent = new Intent(SecondActivity.this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
finish();
}
**试试这个**
所以对作者有效的实际解决方案是使用 finishAffinity()
但不是公认的答案。这对我也有用。