选择器

<template>
  <div class="page">
    <div class="navbar">
      <div class="navbar-bg"></div>
      <div class="navbar-inner sliding">
        <div class="title">Picker</div>
      </div>
    </div>
    <div class="page-content">
      <div class="block">
        <p>Picker is a powerful component that allows you to create custom overlay pickers which looks like native
          picker.</p>
        <p>Picker could be used as inline component or as overlay. Overlay Picker will be automatically converted to
          Popover on tablets (iPad).</p>
      </div>
      <div class="block-title">Picker with single value</div>
      <div class="list list-strong-ios list-outline-ios">
        <ul>
          <li>
            <div class="item-content item-input">
              <div class="item-inner">
                <div class="item-input-wrap">
                  <input type="text" placeholder="Your iOS device" readonly="readonly" id="demo-picker-device" />
                </div>
              </div>
            </div>
          </li>
        </ul>
      </div>
      <div class="block-title">2 values and 3d-rotate effect</div>
      <div class="list list-strong-ios list-outline-ios">
        <ul>
          <li>
            <div class="item-content item-input">
              <div class="item-inner">
                <div class="item-input-wrap">
                  <input type="text" placeholder="Describe yourself" readonly="readonly" id="demo-picker-describe" />
                </div>
              </div>
            </div>
          </li>
        </ul>
      </div>
      <div class="block-title">Dependent values</div>
      <div class="list list-strong-ios list-outline-ios">
        <ul>
          <li>
            <div class="item-content item-input">
              <div class="item-inner">
                <div class="item-input-wrap">
                  <input type="text" placeholder="Your car" readonly="readonly" id="demo-picker-dependent" />
                </div>
              </div>
            </div>
          </li>
        </ul>
      </div>
      <div class="block-title">Custom toolbar</div>
      <div class="list list-strong-ios list-outline-ios">
        <ul>
          <li>
            <div class="item-content item-input">
              <div class="item-inner">
                <div class="item-input-wrap">
                  <input type="text" placeholder="Describe yourself" readonly="readonly"
                    id="demo-picker-custom-toolbar" />
                </div>
              </div>
            </div>
          </li>
        </ul>
      </div>
      <div class="block-title">Inline Picker / Date-time</div>
      <div class="list no-margin">
        <ul>
          <li>
            <div class="item-content item-input">
              <div class="item-inner">
                <div class="item-input-wrap">
                  <input type="text" placeholder="Date Time" readonly="readonly" id="demo-picker-date" />
                </div>
              </div>
            </div>
          </li>
        </ul>
      </div>
      <div class="block block-strong block-outline-ios inset-md no-padding no-margin-top">
        <div id="demo-picker-date-container"></div>
      </div>
    </div>
  </div>
</template>
<script>
  export default (props, { $f7, $on }) => {
    let pickerDevice;
    let pickerDescribe;
    let pickerDependent;
    let pickerCustomToolbar;

    $on('pageInit', () => {
      // iOS Device picker
      pickerDevice = $f7.picker.create({
        inputEl: '#demo-picker-device',
        cols: [
          {
            textAlign: 'center',
            values: ['iPhone 4', 'iPhone 4S', 'iPhone 5', 'iPhone 5S', 'iPhone 6', 'iPhone 6 Plus', 'iPad 2', 'iPad Retina', 'iPad Air', 'iPad mini', 'iPad mini 2', 'iPad mini 3']
          }
        ]
      });

      // Describe yourself picker
      pickerDescribe = $f7.picker.create({
        inputEl: '#demo-picker-describe',
        rotateEffect: true,
        cols: [
          {
            textAlign: 'left',
            values: ('Super Amazing Bat Iron Rocket Lex Beautiful Wonderful Raining Happy Funny Cool Hot').split(' ')
          },
          {
            values: ('Man Luthor Woman Boy Girl Person Cutie Babe Raccoon').split(' ')
          },
        ]
      });

      // Dependent values
      var carVendors = {
        Japanese: ['Honda', 'Lexus', 'Mazda', 'Nissan', 'Toyota'],
        German: ['Audi', 'BMW', 'Mercedes', 'Volkswagen', 'Volvo'],
        American: ['Cadillac', 'Chrysler', 'Dodge', 'Ford']
      };
      pickerDependent = $f7.picker.create({
        inputEl: '#demo-picker-dependent',
        rotateEffect: true,
        formatValue: function (values) {
          return values[1];
        },
        cols: [
          {
            textAlign: 'left',
            values: ['Japanese', 'German', 'American'],
            onChange: function (picker, country) {
              if (picker.cols[1].replaceValues) {
                picker.cols[1].replaceValues(carVendors[country]);
              }
            }
          },
          {
            values: carVendors.Japanese,
            width: 160,
          },
        ]
      });

      // Custom Toolbar
      pickerCustomToolbar = $f7.picker.create({
        inputEl: '#demo-picker-custom-toolbar',
        rotateEffect: true,
        renderToolbar: function () {
          return '<div class="toolbar">' +
            '<div class="toolbar-inner">' +
            '<div class="left">' +
            '<a  class="link toolbar-randomize-link">Randomize</a>' +
            '</div>' +
            '<div class="right">' +
            '<a  class="link sheet-close popover-close">That\'s me</a>' +
            '</div>' +
            '</div>' +
            '</div>';
        },
        cols: [
          {
            values: ['Mr', 'Ms'],
          },
          {
            textAlign: 'left',
            values: ('Super Amazing Bat Iron Rocket Lex Beautiful Wonderful Raining Happy Funny Cool Hot').split(' ')
          },
          {
            values: ('Man Luthor Woman Boy Girl Person Cutie Babe Raccoon').split(' ')
          },
        ],
        on: {
          open: function (picker) {
            picker.$el.find('.toolbar-randomize-link').on('click', function () {
              var col0Values = picker.cols[0].values;
              var col0Random = col0Values[Math.floor(Math.random() * col0Values.length)];

              var col1Values = picker.cols[1].values;
              var col1Random = col1Values[Math.floor(Math.random() * col1Values.length)];

              var col2Values = picker.cols[2].values;
              var col2Random = col2Values[Math.floor(Math.random() * col2Values.length)];

              picker.setValue([col0Random, col1Random, col2Random]);
            });
          },
        }
      });
      // Inline date-time
      const today = new Date();
      pickerInline = $f7.picker.create({
        containerEl: '#demo-picker-date-container',
        inputEl: '#demo-picker-date',
        toolbar: false,
        rotateEffect: true,
        value: [
          today.getMonth(),
          today.getDate(),
          today.getFullYear(),
          today.getHours(),
          today.getMinutes() < 10 ? '0' + today.getMinutes() : today.getMinutes()
        ],
        formatValue: function (values, displayValues) {
          return displayValues[0] + ' ' + values[1] + ', ' + values[2] + ' ' + values[3] + ':' + values[4];
        },
        cols: [
          // Months
          {
            values: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11],
            displayValues: ('January February March April May June July August September October November December').split(' '),
            textAlign: 'left'
          },
          // Days
          {
            values: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31],
          },
          // Years
          {
            values: (function () {
              var arr = [];
              for (var i = 1950; i <= 2030; i++) { arr.push(i); }
              return arr;
            })(),
          },
          // Space divider
          {
            divider: true,
            content: '&nbsp;&nbsp;'
          },
          // Hours
          {
            values: (function () {
              var arr = [];
              for (var i = 0; i <= 23; i++) { arr.push(i); }
              return arr;
            })(),
          },
          // Divider
          {
            divider: true,
            content: ':'
          },
          // Minutes
          {
            values: (function () {
              var arr = [];
              for (var i = 0; i <= 59; i++) { arr.push(i < 10 ? '0' + i : i); }
              return arr;
            })(),
          }
        ],
        on: {
          change: function (picker, values, displayValues) {
            var daysInMonth = new Date(picker.value[2], picker.value[0] * 1 + 1, 0).getDate();
            if (values[1] > daysInMonth) {
              picker.cols[1].setValue(daysInMonth);
            }
          },
        }
      });
    });
    $on('pageBeforeRemove', () => {
      pickerDevice.destroy();
      pickerDescribe.destroy();
      pickerDependent.destroy();
      pickerCustomToolbar.destroy();
    });

    return $render;
  };

</script>