Ios keyboard push content out of view

Hi,
i have made an sign up form in ionic, when i use it in android it works perfect ! i can scroll even on input BUT when i do this in iOS the view is pushed up i changed my settings and added the keyboard solution of the docs but nothing is working. does anybody knows why my content is pushed up ? sample of my code

<ion-content class="centerDivFlex" padding="true" scroll="true">
    <div class="row">
        <form name="signup_form" class="col" ng-controller="signupController">
            <div class="list">
                <label class="item item-input"
                       ng-class="{redglow:signup_form.submitted && signup_form.username.$error.required}">
                    <span class="input-label">Username</span>
                    <input type="text" ng-model="user.username" name="username" required>
                </label>
                <label class="item item-input"
                       ng-class="{redglow:signup_form.submitted && signup_form.password.$error.required}">
                    <span class="input-label">Password</span>
                    <input type="password" ng-model="user.password" name="password" required>
                </label>
                <label class="item item-input"
                       ng-class="{redglow:signup_form.submitted && signup_form.firstname.$error.required}">
                    <span class="input-label">First Name</span>
                    <input type="text" class="form-control" ng-model="user.firstname" name="firstname" required>
                </label>
                <label class="item item-input"
                       ng-class="{redglow:signup_form.submitted && signup_form.lastname.$error.required}">
                    <span class="input-label">Last Name</span>
                    <input type="text" ng-model="user.lastname" name="lastname" required>
                </label>
                <label class="item item-input"
                       ng-class="{redglow:signup_form.submitted && signup_form.email.$error.required}">
                    <span class="input-label">E-mail</span>
                    <input type="email" ng-model="user.email" name="email" required>
                </label>

                <div ng-if="signup_form.submitted && signup_form.email.$error.email" class="error">
                    <i class="icon ion-ios7-information"></i> Please fill in a valid emailaddress
                </div>
                <label class="item">
                    <button class="button button-block button-positive" ng-click="submit()">SignUp</button>
                </label>
            </div>
        </form>
    </div>
</ion-content>