使用Slider来构建Splash欢迎界面

这个就是我们将要制作的app

1 创建一个新的项目

把资源文件下载带入。

2 选择颜色

这个完全取决于你打算在你的app中显示什么。我打算在中心放一张图片，然后周围一些文字，在底部有一些圆点指示有几个滑块。

下图就是我选择的，每一个屏幕都要有一个背景色，和两种圆圈的颜色，分别代表激活\未激活。

3打开colors.xml

colors.xml

<resources>
    <color name="colorPrimary">#3F51B5color>
    <color name="colorPrimaryDark">#303F9Fcolor>
    <color name="colorAccent">#FF4081color>

    
    <color name="bg_screen1">#f64c73color>
    <color name="bg_screen2">#20d2bbcolor>
    <color name="bg_screen3">#3395ffcolor>
    <color name="bg_screen4">#c873f4color>

    
    <color name="dot_dark_screen1">#d1395ccolor>
    <color name="dot_dark_screen2">#14a895color>
    <color name="dot_dark_screen3">#2278d4color>
    <color name="dot_dark_screen4">#a854d4color>

    
    <color name="dot_light_screen1">#f98da5color>
    <color name="dot_light_screen2">#8cf9ebcolor>
    <color name="dot_light_screen3">#93c6fdcolor>
    <color name="dot_light_screen4">#e4b5fccolor>

    <array name="array_dot_active">
        <item>@color/dot_light_screen1item>
        <item>@color/dot_light_screen2item>
        <item>@color/dot_light_screen3item>
        <item>@color/dot_light_screen4item>
    array>

    <array name="array_dot_inactive">
        <item>@color/dot_dark_screen1item>
        <item>@color/dot_dark_screen2item>
        <item>@color/dot_dark_screen3item>
        <item>@color/dot_dark_screen4item>
    array>
resources>

4打开strings.xml

strings.xml

    <string name="app_name">Intro Sliderstring>
    <string name="title_activity_welcome">Home Screenstring>
    <string name="next">NEXTstring>
    <string name="skip">SKIPstring>
    <string name="start">GOT ITstring>

    <string name="slide_1_title">Hello Food!string>
    <string name="slide_1_desc">The easiest way to order food from your favourite restaurant!string>

    <string name="slide_2_title">Movie Ticketsstring>
    <string name="slide_2_desc">Book movie tickets for your family and friends!string>

    <string name="slide_3_title">Great Discountsstring>
    <string name="slide_3_desc">Best discounts on every single service we offer!string>

    <string name="slide_4_title">World Travelstring>
    <string name="slide_4_desc">Book tickets of any transportation and travel the world!string>

    <string name="play_again_desc">To see the welcome slider again, goto Settings -> apps -> welcome slider -> clear datastring>
    <string name="play_again">Play Againstring>

5 代开dimens.xml

dimens.xml
<resources>
    
    <dimen name="activity_horizontal_margin">16dpdimen>
    <dimen name="activity_vertical_margin">16dpdimen>
    <dimen name="fab_margin">16dpdimen>
    <dimen name="dots_height">30dpdimen>
    <dimen name="dots_margin_bottom">20dpdimen>
    <dimen name="img_width_height">120dpdimen>
    <dimen name="slide_title">30dpdimen>
    <dimen name="slide_desc">16dpdimen>
    <dimen name="desc_padding">40dpdimen>
resources>

6 确保这些加在styles.xml

styles.xml


    -- Base application theme. -->