In this article, I’m explaining the slider field in sencha touch and how to use it our application.

The slider is a way to allow the user to select a value from a given numerical range. You might use it for choosing a percentage, combine two of them to get min and max values, or use three of them to specify the hex values for a color. Each slider contains a single 'thumb' that can be dragged along the slider's length to change the value. Sliders are equally useful inside forms and standalone.

Example
Ext.define('MyApp.view.MyFormPanel', {

    extend: 'Ext.form.Panel',
 
    config: {
        fullscreen: true,
        items: [
            {
                xtype: 'titlebar',
                docked: 'top',
                id: 'SliderValueToolbar',
                title: 'value=[25,75]'
            },
            {
                xtype: 'fieldset',
                title: '',
                items: [
                    {
                        xtype: 'checkboxfield',
                        id: 'OverlappingCkeckBox',
                        itemId: 'mycheckbox',
                        label: 'Allow Thumb OverLapping :',
                        checked: true
                    },
                    {
                        xtype: 'sliderfield',
                        id: 'SliderField',
                        itemId: 'mysliderfield',
                        component: {
                            allowThumbsOverlapping: true
                        },
                        label: 'Slider Field',
                        value: [
                            25,
                            75
                        ]
                    }
                ]
            }
        ],
        listeners: [
            {
                fn: 'onOverlappingCkeckBoxCheck',
                event: 'check',
                delegate: '#OverlappingCkeckBox'
            },
            {
                fn: 'onOverlappingCkeckBoxUncheck',
                event: 'uncheck',
                delegate: '#OverlappingCkeckBox'
            },
            {
                fn: 'onSliderFieldChange',
                event: 'change',
                delegate: '#SliderField'
            }
        ]
    },
 
    onOverlappingCkeckBoxCheck: function(checkboxfield, e, eOpts) {
        Ext.getCmp('SliderField').getComponent().setAllowThumbsOverlapping(true);
    },
 
    onOverlappingCkeckBoxUncheck: function(checkboxfield, e, eOpts) {
        Ext.getCmp('SliderField').getComponent().setAllowThumbsOverlapping(false);
    },
 
    onSliderFieldChange: function(me, sl, thumb, newValue, oldValue, eOpts) {
        var slider= Ext.getCmp('SliderField');
        Ext.getCmp('SliderValueToolbar').setTitle('values = [' + slider.getValues() + ']');
    }
});

 Output

Slider Field in Sencha Touch

When you change the location of thumbs, the value change in the title of toolbar:

Slider Field in Sencha Touch

Unchecking the Allow Thumb OverLapping checkbox will not allow the thumbs to overlap:

Slider Field in Sencha Touch

Checking the Allow Thumb OverLapping checkbox will allow the thumbs to overlap:

Slider Field in Sencha Touch

  Modified On Nov-30-2017 01:04:04 AM

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