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CN1 Native Controls

This library will contain a few useful native controls for Codename One. Currently it includes only two controls "NSelect", which is a native select widget, and "NTextField", which is a native text field. NSelect is mostly useful when deploying to Javascript since the lightweight alternatives (Picker, and ComboBox) don't quite give a native feel on that platform. NTextField was developed primarily to provide support for native password managers.

Requirements

This should work on all platforms. For the NSelect widget, it will use native widgets on the JavaSE and Javascript platforms only. It will fall back to a lightweight ComboBox implementation on all other platforms.

Installation

Either install this library through Codename One Settings, or download it here, copy to your project's "lib" directory, and select "Codename One" > "Refresh CN1libs".

NSelect Usage

A basic usage example.

Form hi = new Form("Hi World", BoxLayout.y());

hi.add(new Label("Hi World"));
Label result = new Label();

// Create a new NSelect
NSelect<String> select = new NSelect<>();

// Notice that we can specify font, fgcolor, and bgcolor and these 
// will be propagated to the native widget.
// Other styles not supported.
// NOTE:  Native widgets are opaque.  You can't use alpha transparency.
$(select).selectAllStyles()
        .setFont(Font.createTrueTypeFont(Font.NATIVE_MAIN_LIGHT, 4f))
        .setFgColor(0xff0000)
        .setBgColor(0x00ff00)
        ;
select.setOptions("Red", "Green", "Blue", "Orange");
select.addSelectionListener((i1, i2)->{
    result.setText(select.getOption(select.getSelectedIndex()));
    hi.revalidateWithAnimationSafety();
});
hi.add(result);
hi.add(select);


hi.show();

NTextField Usage

A basic usage example.

...
hi.add("Text fields");
hi.add("Username:");
NTextField tf1 = new NTextField(TextField.USERNAME);
System.out.println("Setting font to main light 15mm");
tf1.getAllStyles().setFont(Font.createTrueTypeFont(Font.NATIVE_MAIN_LIGHT, 15f));
System.out.println("Finished setting font");
tf1.getAllStyles().setFgColor(0x003300);
tf1.getAllStyles().setBgTransparency(255);
tf1.getAllStyles().setBgColor(0xcccccc);
tf1.getAllStyles().setAlignment(CENTER);
hi.add(tf1);
hi.add("Password:");
NTextField tf2 = new NTextField(TextField.PASSWORD);
hi.add(tf2);
hi.add("Email:");
NTextField emailField = new NTextField(TextField.EMAILADDR);
hi.add(emailField);

tf1.addActionListener(e->{
    //tf2.setText(tf1.getText());
});
tf1.addChangeListener(e->{
   result.setText(tf1.getText());
   hi.revalidateWithAnimationSafety();
});
tf2.addActionListener(e->{
    Log.p("Action listener fired on password field");
    result.setText(tf2.getText());
    hi.revalidateWithAnimationSafety();
});
tf2.addDoneListener(e->{
    Log.p("Done was clicked!!!");
});
...

Created by

Steve Hannah

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Some useful native widgets for Codename one

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