How to display a Yes/No dialog box on Android?
AlertDialog.Builder really isn't that hard to use. It's a bit intimidating at first for sure, but once you've used it a bit it's both simple and powerful. I know you've said you know how to use it, but here's just a simple example anyway:
DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
switch (which){
case DialogInterface.BUTTON_POSITIVE:
//Yes button clicked
break;
case DialogInterface.BUTTON_NEGATIVE:
//No button clicked
break;
}
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setMessage("Are you sure?").setPositiveButton("Yes", dialogClickListener)
.setNegativeButton("No", dialogClickListener).show();
You can also reuse that DialogInterface.OnClickListener
if you have other yes/no boxes that should do the same thing.
If you're creating the Dialog from within a View.OnClickListener
, you can use view.getContext()
to get the Context. Alternatively you can use yourFragmentName.getActivity()
.
How to create a dialog with “Ok” and “Cancel” options
You're probably looking for confirm()
, which displays a prompt and returns true
or false
based on what the user decided:
if (confirm('Are you sure you want to save this thing into the database?')) { // Save it! console.log('Thing was saved to the database.');} else { // Do nothing! console.log('Thing was not saved to the database.');}
Property [title] does not exist on this collection instance
When you're using get()
you get a collection. In this case you need to iterate over it to get properties:
@foreach ($collection as $object)
{{ $object->title }}
@endforeach
Or you could just get one of objects by it's index:
{{ $collection[0]->title }}
Or get first object from collection:
{{ $collection->first() }}
When you're using find()
or first()
you get an object, so you can get properties with simple:
{{ $object->title }}
Check if PHP session has already started
Recommended way for versions of PHP >= 5.4.0 , PHP 7, PHP 8
if (session_status() === PHP_SESSION_NONE) {
session_start();
}
Reference: http://www.php.net/manual/en/function.session-status.php
For versions of PHP < 5.4.0
if(session_id() == '') {
session_start();
}
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