Show-Hide-Password | Frontend Framework library

I understand that the password-style effect can be implemented for UITextFields using the SecureTextEntry property, and I also found some code online to implement Hide/Show password effect here, but this only works for UITextFields, I need to implement this same feature for a Custom UITextView. I currently have some code to implement add the image for the UI, but the actual Show/Hide password effect is not implemented.

I found some code for how to do this in Swift here, but I have never worked with Swift and was hoping that someone who is familiar with Swift can translate this to C# for me, as this could possibly be the solution I need.

I also understand that while the SecureTextEntry property gives the password-style experience for UITextFields when set to true (ie prevents copying and turns characters into black dots), it only prevents copying of text when set to true for UITextViews. This I found from the documentation of this property here

Here is the code which I currently have in my file that implements the Show/Hide password effect:

Show/Hide Functionality is working well, but it is messing up with my CSS file as it doesn't align with the style added in the CSS file. Here is the code for my file.

I am trying to implement the show/hide button for the password field in Ionic 3. I have got the code help from here

login.html

I'm working on a signup form and connected with Laravel back-end API. when I insert data of new customer it successfully send request to back-end and redirect to login page. when I give wrong data or existing data errors should show right bellow to the input box in the signup form. But now it's not showing errors in the form but errors can be shown in console.

I'm creating form which has Name, Email, Password fields. My code is mentioned below

signup.html

I am trying to use DashboardPage in app.module.ts file as shared module, In that I am facing error like "Error: Unexpected directive 'DashboardPage' imported by the module 'SharedModule'. Please add a @NgModule annotation."

Give some suggestions to resolve this issue. Thanks in advance.

Below the codes,

app.module.ts