Fab 懸浮按鈕

聲明，參考：https://ext.dcloud.net.cn/plugin?id=144

 

• 在 template 中使用

<template>
    <view>
        <uni-fab
            :pattern="pattern"
            :content="content"
            :horizontal="horizontal"
            :vertical="vertical"
            :direction="direction"
            @trigger="trigger"
        ></uni-fab>
    </view>
</template>

 

• 在 javascript 中使用

<script>
    import uniFab from '@/components/uni-fab/uni-fab.vue';
    
    export default {
        data() {
            return {
                horizontal: 'left',
                vertical: 'top',
                direction: 'horizontal',
                pattern: {
                    color: '#7A7E83',
                    backgroundColor: '#fff',
                    selectedColor: '#FF0000',
                    buttonColor:"#007AFF",
                },
                content: [
                    {
                        iconPath: '/static/img/tabbar/guanzhu.png',
                        selectedIconPath: '/static/img/tabbar/guanzhuactive.png',
                        text: '組件',
                        active: false
                    },
                    {
                        iconPath: '/static/img/tabbar/home.png',
                        selectedIconPath: '/static/img/tabbar/homeactive.png',
                        text: 'API',
                        active: false
                    },
                    {
                        iconPath: '/static/img/tabbar/me.png',
                        selectedIconPath: '/static/img/tabbar/meactive.png',
                        text: '模版',
                        active: false
                    }
                ]
            }
        },
    
        methods: {
            
             trigger(e) {
                let other = this.content.map((d, i) => {
                   d.active = i== e.index
                })
                
                uni.showToast({
                    title:'選擇了'+this.content[e.index].text
                })
            }
        },
        
        components: {
            uniFab
        }
    }
</script>

 

• 最後附上uni-fab.vue

<template>
    <view>
        <view
            class="fab-box fab" 
            :class="{
                leftBottom: leftBottom,
                rightBottom: rightBottom,
                leftTop: leftTop,
                rightTop: rightTop
            }"
        >
            <view
                class="fab-circle"
                :class="{
                    left: horizontal === 'left' && direction === 'horizontal',
                    top: vertical === 'top' && direction === 'vertical',
                    bottom: vertical === 'bottom' && direction === 'vertical',
                    right: horizontal === 'right' && direction === 'horizontal'
                }"
                :style="{ 'background-color': styles.buttonColor }"
                @click="open"
            >
                <text class="icon icon-jia" :class="{ active: showContent }"></text>
            </view>
            <view
                class="fab-content"
                :class="{
                    left: horizontal === 'left',
                    right: horizontal === 'right',
                    flexDirection: direction === 'vertical',
                    flexDirectionStart: flexDirectionStart,
                    flexDirectionEnd: flexDirectionEnd
                }"
                :style="{ width: boxWidth, height: boxHeight, background: styles.backgroundColor }"
            >
                <view v-if="flexDirectionStart || horizontalLeft" class="fab-item first"></view>
                <view
                    class="fab-item"
                    v-for="(item, index) in content"
                    :key="index"
                    :class="{ active: showContent }"
                    :style="{
                        color: item.active ? styles.selectedColor : styles.color
                    }"
                    @click="taps(index, item)"
                >
                    <image
                        class="content-image"
                        :src="item.active ? item.selectedIconPath : item.iconPath"
                        mode=""
                    ></image>
                    <text class="text">{{ item.text }}</text>
                </view>
                <view v-if="flexDirectionEnd || horizontalRight" class="fab-item first"></view>
            </view>
        </view>
    </view>
</template>

<script>
export default {
    props: {
        pattern: {
            type: Object,
            default: () => {
                return {};
            }
        },
        horizontal: {
            type: String,
            default: 'left'
        },
        vertical: {
            type: String,
            default: 'bottom'
        },
        direction: {
            type: String,
            default: 'horizontal'
        },
        content: {
            type: Array,
            default: () => {
                return [];
            }
        }
    },
    data() {
        return {
            fabShow: false,
            flug: true,
            showContent: false,
            styles: {
                color: '#3c3e49',
                selectedColor: '#007AFF',
                backgroundColor: '#fff',
                buttonColor: '#3c3e49'
            }
        };
    },
    created() {
        if (this.top === 0) {
            this.fabShow = true;
        }
        // 初始化樣式
        this.styles = Object.assign({}, this.styles, this.pattern);
    },
    methods: {
        open() {
            this.showContent = !this.showContent;
        },
        /**
         * 按鈕點擊事件
         */
        taps(index, item) {
            this.$emit('trigger', {
                index,
                item
            });
            
            this.showContent = false;
        },
        /**
         * 獲取 位置信息
         */
        getPosition(types, paramA, paramB) {
            if (types === 0) {
                return this.horizontal === paramA && this.vertical === paramB;
            } else if (types === 1) {
                return this.direction === paramA && this.vertical === paramB;
            } else if (types === 2) {
                return this.direction === paramA && this.horizontal === paramB;
            } else {
                return this.showContent && this.direction === paramA
                    ? this.contentWidth
                    : this.contentWidthMin;
            }
        }
    },
    watch: {
        pattern(newValue, oldValue) {
            console.log(JSON.stringify(newValue));
            this.styles = Object.assign({}, this.styles, newValue);
        }
    },
    computed: {
        contentWidth(e) {
            return uni.upx2px((this.content.length + 1) * 110 + 20) + 'px';
        },
        contentWidthMin() {
            return uni.upx2px(110) + 'px';
        },
        // 動態計算寬度
        boxWidth() {
            return this.getPosition(3, 'horizontal');
        },
        // 動態計算高度
        boxHeight() {
            return this.getPosition(3, 'vertical');
        },
        // 計算左下位置
        leftBottom() {
            return this.getPosition(0, 'left', 'bottom');
        },
        // 計算右下位置
        rightBottom() {
            return this.getPosition(0, 'right', 'bottom');
        },
        // 計算左上位置
        leftTop() {
            return this.getPosition(0, 'left', 'top');
        },
        rightTop() {
            return this.getPosition(0, 'right', 'top');
        },
        flexDirectionStart() {
            return this.getPosition(1, 'vertical', 'top');
        },
        flexDirectionEnd() {
            return this.getPosition(1, 'vertical', 'bottom');
        },
        horizontalLeft() {
            return this.getPosition(2, 'horizontal', 'left');
        },
        horizontalRight() {
            return this.getPosition(2, 'horizontal', 'right');
        }
    }
};
</script>

<style scoped>
.fab-box {
    position: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.fab-box.top {
    width: 60upx;
    height: 60upx;
    right: 30upx;
    bottom: 60upx;
    border: 1px #5989b9 solid;
    background: #6699cc;
    border-radius: 10upx;
    color: #fff;
    transition: all 0.3;
    opacity: 0;
}

.fab-box.active {
    opacity: 1;
}

.fab-box.fab {
    z-index: 10;
}

.fab-box.fab.leftBottom {
    left: 30upx;
    bottom: 60upx;
}

.fab-box.fab.leftTop {
    left: 30upx;
    top: 80upx;
    /* #ifdef H5 */
    top: calc(80upx + var(--window-top));
    /* #endif */
}

.fab-box.fab.rightBottom {
    right: 30upx;
    bottom: 60upx;
}

.fab-box.fab.rightTop {
    right: 30upx;
    top: 80upx;
    /* #ifdef H5 */
    top: calc(80upx + var(--window-top));
    /* #endif */
}

.fab-circle {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    width: 110upx;
    height: 110upx;
    background: #3c3e49;
    /* background: #5989b9; */
    border-radius: 50%;
    box-shadow: 0 0 5px 2px rgba(0, 0, 0, 0.2);
    z-index: 11;
}

.fab-circle.left {
    left: 0;
}

.fab-circle.right {
    right: 0;
}

.fab-circle.top {
    top: 0;
}

.fab-circle.bottom {
    bottom: 0;
}

.fab-circle .icon-jia {
    color: #ffffff;
    font-size: 50upx;
    transition: all 0.3s;
}

.fab-circle .icon-jia.active {
    transform: rotate(135deg);
}

.fab-content {
    background: #6699cc;
    box-sizing: border-box;
    display: flex;
    border-radius: 100upx;
    overflow: hidden;
    box-shadow: 0 0 5px 2px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    width: 110upx;
}

.fab-content.left {
    justify-content: flex-start;
}

.fab-content.right {
    justify-content: flex-end;
}

.fab-content.flexDirection {
    flex-direction: column;
    justify-content: flex-end;
}

.fab-content.flexDirectionStart {
    flex-direction: column;
    justify-content: flex-start;
}

.fab-content.flexDirectionEnd {
    flex-direction: column;
    justify-content: flex-end;
}

.fab-content .fab-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 110upx;
    height: 110upx;
    font-size: 24upx;
    color: #fff;
    opacity: 0;
    transition: opacity 0.2s;
}

.fab-content .fab-item.active {
    opacity: 1;
}

.fab-content .fab-item .content-image {
    width: 50upx;
    height: 50upx;
    margin-bottom: 5upx;
}

.fab-content .fab-item.first {
    width: 110upx;
}

@font-face {
    font-family: 'iconfont';
    src: url('https://at.alicdn.com/t/font_1028200_xhbo4rn58rp.ttf?t=1548214263520')
        format('truetype');
}

.icon {
    font-family: 'iconfont' !important;
    font-size: 16px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon-jia:before {
    content: '\e630';
}

.icon-arrow-up:before {
    content: '\e603';
}
</style>