The adminui module provides widgets for jForms, so your forms will be well integrated into the adminLTE theme.
You should indicate the adminlte builder to jForms.
For all forms, you must indicate into the configuration
[tplplugins]
defaultJformsBuilder=adminlteOr if you want to use the builder only for specific forms, in your templates, you should indicate
the adminlte jforms builder into the {form} tag and similaire jtpl tags.
Examples:
<div class="card card-success">
<div class="card-header">
<h3 class="card-title">A sample form</h3>
</div>
{form $form, 'test~default:formsave', array(), 'adminlte'}
<div class="card-body">
{formcontrols}
<div class="form-group">
{ctrl_label}
{ctrl_control}
</div>
{/formcontrols}
</div>
<div class="card-footer">
{formsubmit} {formreset}
</div>
{/form}
</div><div class="box">
<div class="box-header">
<h3>A sample form</h3>
</div>
<div class="box-body">
{formfull $form, 'test~default:formsave', array(), 'adminlte'}
</div>
</div><div class="box">
<div class="box-header">
<h3>Form data</h3>
</div>
<div class="box-body">
{formdatafull $form, 'adminlte'}
</div>
</div>