Android spla sh экран VectorDrawable

Question

Я хочу показать VectorDrawable в моем spla sh sreen

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:drawable="@android:color/white"
        android:gravity="fill" />

    <item
        android:drawable="@drawable/splash_screen"
        android:gravity="bottom|center" />
</layer-list>

Мой SVG имеет android:width="320dp" и android:height="238dp"

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="320dp"
    android:height="238dp"
    android:viewportWidth="320"
    android:viewportHeight="238">
  <group>
    <clip-path android:pathData="M0,0h320v238h-320z M 0,0"/>
    <path
        android:pathData="M0,143.311a160,4.476 0,1 0,320 0a160,4.476 0,1 0,-320 0z"
        android:fillColor="#E6E6E6"/>
    <path
        android:pathData="M245.269,94.815C245.067,94.818 244.865,94.821 244.66,94.821C244.455,94.821 244.253,94.818 244.051,94.815C233.341,94.572 225.578,87.88 227.554,80.859L232.372,63.73L233.59,59.396L255.177,59.764L256.488,64.004L261.653,80.693C263.839,87.753 256.076,94.572 245.269,94.815Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M256.488,64.004C248.993,68.288 239.768,68.184 232.372,63.73L233.59,59.396L255.177,59.764L256.488,64.004Z"
        android:strokeAlpha="0.2"
        android:fillColor="#000000"
        android:fillAlpha="0.2"/>
    <path
        android:pathData="M255.577,81.427C256.51,77.952 259.575,72.938 268.17,66.893C283.16,56.35 274.218,48.444 273.83,48.113C273.017,47.418 273.137,46.638 274.109,46.371C275.252,46.143 276.437,46.419 277.361,47.128C277.846,47.529 289.044,57.092 272.129,68.988C256.906,79.695 260.142,86.685 260.179,86.752C260.587,87.499 259.933,88.097 258.717,88.089C257.501,88.081 256.183,87.469 255.774,86.723C255.688,86.565 254.709,84.662 255.577,81.427Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M234.697,97.312C234.036,97.312 233.403,97.049 232.935,96.582C232.468,96.115 232.206,95.481 232.206,94.821L232.206,84.027C232.206,82.652 233.321,81.537 234.697,81.537C236.072,81.537 237.187,82.652 237.187,84.027L237.187,94.821C237.187,95.481 236.925,96.115 236.458,96.582C235.991,97.049 235.357,97.312 234.697,97.312L234.697,97.312Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M236.881,71.688C236.604,72.288 236.101,72.754 235.482,72.983C234.862,73.212 234.177,73.185 233.577,72.909L223.771,68.398C222.523,67.822 221.977,66.344 222.552,65.095C223.127,63.846 224.604,63.299 225.853,63.872L235.659,68.384C236.259,68.66 236.725,69.163 236.954,69.783C237.183,70.402 237.157,71.087 236.881,71.688L236.881,71.688Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M252.439,71.688C252.715,72.288 253.218,72.754 253.838,72.983C254.458,73.212 255.143,73.185 255.743,72.909L265.548,68.398C266.798,67.823 267.345,66.344 266.77,65.094C266.195,63.844 264.716,63.297 263.466,63.872L253.661,68.384C253.061,68.66 252.595,69.163 252.366,69.783C252.137,70.402 252.163,71.087 252.439,71.688Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M254.623,97.312C255.284,97.312 255.917,97.049 256.384,96.582C256.851,96.115 257.114,95.481 257.114,94.821L257.114,84.027C257.114,82.652 255.999,81.537 254.623,81.537C253.247,81.537 252.132,82.652 252.132,84.027L252.132,94.821C252.132,95.481 252.395,96.115 252.862,96.582C253.329,97.049 253.962,97.312 254.623,97.312L254.623,97.312Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M265.032,27.435C265.468,26.887 265.648,26.178 265.527,25.489L264.171,17.514L262.815,9.539C262.666,8.662 262.061,7.932 261.228,7.623C260.394,7.314 259.459,7.473 258.775,8.04L252.546,13.201L248.794,16.311C246.291,15.866 243.733,15.827 241.218,16.197L237.604,13.201L231.375,8.04C230.691,7.473 229.756,7.314 228.922,7.623C228.089,7.932 227.483,8.662 227.335,9.539L225.979,17.514L224.623,25.489C224.551,25.908 224.588,26.338 224.732,26.739C218.3,36.598 220.044,49.678 228.833,57.509C237.622,65.339 250.816,65.567 259.871,58.045C268.925,50.523 271.119,37.511 265.032,27.435L265.032,27.435Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M230.751,11.308C230.603,11.308 230.457,11.335 230.318,11.386C229.904,11.537 229.603,11.9 229.532,12.335L227.888,22.006C227.814,22.44 227.978,22.88 228.317,23.161C228.656,23.442 229.119,23.52 229.531,23.367L238.728,19.955C239.141,19.802 239.441,19.441 239.514,19.007C239.588,18.573 239.425,18.133 239.086,17.852L239.086,17.852L231.533,11.593C231.313,11.409 231.037,11.308 230.751,11.308Z"
        android:fillColor="#E6E6E6"/>
    <path
        android:pathData="M259.399,11.308C259.113,11.308 258.836,11.409 258.617,11.593L251.064,17.852C250.725,18.133 250.562,18.573 250.636,19.007C250.709,19.441 251.009,19.802 251.422,19.955L260.619,23.367C261.031,23.52 261.494,23.442 261.833,23.161C262.172,22.88 262.335,22.44 262.262,22.006L260.618,12.335C260.547,11.9 260.246,11.537 259.832,11.386C259.693,11.335 259.547,11.308 259.399,11.308L259.399,11.308Z"
        android:fillColor="#E6E6E6"/>
    <path
        android:pathData="M244.66,43.068m-3.321,0a3.321,3.321 0,1 1,6.642 0a3.321,3.321 0,1 1,-6.642 0"
        android:fillColor="#E6E6E6"/>
    <path
        android:pathData="M242.446,41.407a2.214,0.83 0,1 0,4.428 0a2.214,0.83 0,1 0,-4.428 0z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M242.999,45.005L246.044,45.005L246.044,48.741C246.044,49.582 245.362,50.263 244.521,50.263L244.521,50.263C243.681,50.263 242.999,49.582 242.999,48.741L242.999,45.005L242.999,45.005Z"
        android:fillColor="#FF6584"/>
    <path
        android:pathData="M244.845,7.335C244.685,7.666 244.53,8.001 244.384,8.342C242.667,12.348 242.087,16.75 242.71,21.063C243.022,20.611 243.349,20.14 243.682,19.664C242.969,15.524 243.37,11.269 244.845,7.335L244.845,7.335Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M247.335,10.379C247.176,10.71 247.021,11.045 246.875,11.387C245.157,15.392 244.578,19.794 245.201,24.108C245.513,23.656 245.84,23.185 246.173,22.708C245.46,18.568 245.861,14.313 247.335,10.379L247.335,10.379Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M255.015,70.145L254.664,65.683L254.313,61.22C254.274,60.73 253.977,60.298 253.533,60.086C253.089,59.874 252.566,59.915 252.161,60.194L248.472,62.729L245.778,64.58C245.429,64.172 244.92,63.937 244.383,63.937C243.847,63.937 243.337,64.172 242.989,64.58L240.295,62.729L236.606,60.194C236.2,59.915 235.677,59.874 235.233,60.086C234.789,60.298 234.492,60.73 234.453,61.22L234.102,65.683L233.751,70.145C233.713,70.636 233.939,71.109 234.344,71.388C234.75,71.666 235.273,71.708 235.717,71.496L239.757,69.568L243.076,67.985C243.421,68.334 243.892,68.531 244.383,68.531C244.874,68.531 245.345,68.334 245.69,67.985L249.009,69.568L253.049,71.496C253.493,71.708 254.016,71.666 254.422,71.388C254.827,71.109 255.053,70.636 255.015,70.145L255.015,70.145Z"
        android:fillColor="#6C63FF"/>
    <path
        android:pathData="M240.232,39.47m-0.83,0a0.83,0.83 0,1 1,1.661 0a0.83,0.83 0,1 1,-1.661 0"
        android:fillColor="#E6E6E6"/>
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        android:fillColor="#E6E6E6"/>
    <path
        android:pathData="M84.015,87.48C84.218,87.483 84.42,87.486 84.624,87.486C84.829,87.486 85.031,87.483 85.233,87.48C95.944,87.237 103.707,80.545 101.731,73.524L96.912,56.395L95.695,52.061L74.108,52.429L72.796,56.669L67.632,73.357C65.445,80.417 73.208,87.237 84.015,87.48Z"
        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M72.796,56.669C80.291,60.953 89.517,60.849 96.912,56.395L95.695,52.061L74.108,52.429L72.796,56.669Z"
        android:strokeAlpha="0.2"
        android:fillColor="#000000"
        android:fillAlpha="0.2"/>
    <path
        android:pathData="M71.085,72.062C68.755,69.32 63.84,66.1 53.485,64.314C35.424,61.199 40.124,50.227 40.332,49.762C40.77,48.786 40.327,48.132 39.335,48.307C38.205,48.59 37.251,49.346 36.72,50.383C36.453,50.953 30.424,64.387 50.803,67.901C69.143,71.065 69.209,78.767 69.204,78.844C69.155,79.694 70.002,79.955 71.098,79.427C72.194,78.899 73.123,77.782 73.173,76.932C73.183,76.753 73.255,74.614 71.085,72.062Z"
        android:fillColor="#3F3D56"/>
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        android:fillColor="#3F3D56"/>
    <path
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        android:fillColor="#3F3D56"/>
    <path
        android:pathData="M97.752,4.258L90.198,10.517L90.198,10.517C89.859,10.798 89.696,11.238 89.77,11.672C89.844,12.106 90.143,12.467 90.556,12.62L99.753,16.032C100.166,16.185 100.629,16.107 100.968,15.826C101.306,15.545 101.47,15.105 101.396,14.671L99.752,5C99.681,4.565 99.38,4.202 98.966,4.051C98.828,4 98.681,3.973 98.533,3.973C98.247,3.973 97.971,4.074 97.752,4.258Z"
        android:fillColor="#E6E6E6"/>
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        android:pathData="M69.453,4.051C69.038,4.202 68.738,4.565 68.666,5L67.022,14.671C66.949,15.105 67.112,15.545 67.451,15.826C67.79,16.107 68.253,16.185 68.665,16.032L77.863,12.62C78.275,12.467 78.575,12.106 78.649,11.672C78.722,11.238 78.559,10.798 78.22,10.517L70.667,4.258C70.448,4.074 70.171,3.973 69.885,3.973C69.737,3.973 69.591,4 69.453,4.051Z"
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        android:fillColor="#FF6584"/>
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        android:pathData="M84.44,0C84.599,0.331 84.754,0.666 84.9,1.007C86.618,5.013 87.197,9.415 86.574,13.728C86.262,13.276 85.935,12.805 85.602,12.329C86.315,8.189 85.914,3.934 84.44,0L84.44,0Z"
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        android:pathData="M40.699,90.118m-3.239,0a3.239,3.239 0,1 1,6.479 0a3.239,3.239 0,1 1,-6.479 0"
        android:fillColor="#6C63FF"/>
    <path
        android:pathData="M104.765,162.103m-3.239,0a3.239,3.239 0,1 1,6.479 0a3.239,3.239 0,1 1,-6.479 0"
        android:fillColor="#6C63FF"/>
    <path
        android:pathData="M186.108,63.843m-3.239,0a3.239,3.239 0,1 1,6.479 0a3.239,3.239 0,1 1,-6.479 0"
        android:fillColor="#6C63FF"/>
    <path
        android:pathData="M281.488,159.223m-3.239,0a3.239,3.239 0,1 1,6.479 0a3.239,3.239 0,1 1,-6.479 0"
        android:fillColor="#6C63FF"/>
    <path
        android:pathData="M284.727,74.281m-3.239,0a3.239,3.239 0,1 1,6.479 0a3.239,3.239 0,1 1,-6.479 0"
        android:fillColor="#6C63FF"/>
    <path
        android:pathData="M243.696,132.589m-3.239,0a3.239,3.239 0,1 1,6.479 0a3.239,3.239 0,1 1,-6.479 0"
        android:fillColor="#6C63FF"/>
  </group>
</vector>

Я тестировал в android 8 (устройство 360dp x 640dp) и все в порядке, но в android 5.1.1 (устройство 320dp x 480dp) он деформирован, мой заполненный экран VectorDrawable и потерял соотношение сторон, как я могу это исправить?

и тема

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
        <!-- Show a splash screen on the activity. Automatically removed when
             Flutter draws its first frame -->
        <item name="android:windowBackground">@drawable/launch_background</item>
    </style>
</resources>

Answer 1

VectorDrawable определяет недоступный для рисования объект c. Подобно формату SVG, каждая векторная графика c определяется как иерархия деревьев, которая состоит из объектов пути и группы. Каждый путь содержит геометрию контура объекта, а группа содержит детали для преобразования.

Вы можете использовать SDP - единицу масштабируемого размера.

android SDK, который предоставляет новую единицу размера - sdp (масштабируемый dp). Эта единица измерения размера зависит от размера экрана. Это может помочь Android разработчикам с поддержкой нескольких экранов.

Чтобы добавить sdp в ваш проект (используя Android Studio и Gradle) build.gradle

dependencies {
  implementation 'com.intuit.sdp:sdp-android:1.0.6'
}

Теперь добавьте sdp вместо dp .

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="@dimen/_300sdp"
    android:height="@dimen/_225sdp"
    android:viewportWidth="512"
    android:viewportHeight="512">

Примечание. Используйте AppCompatImageView (с app:srcCompat) вместо ImageView в вашем макете.

 <android.support.v7.widget.AppCompatImageView //Or androidx.appcompat.widget.AppCompatImageView
    app:srcCompat="@drawable/your_svg"
    />

Answer 2

Эта проблема связана с API 21, 22 и 23 для тех, кому нужно обернуть нарисованное вокруг растрового изображения. что вам нужно сделать, это создать 2 версии вашего списка слоев Drawable и поместить одну в drawable-v22, а другую в drawable-v24, если эти папки еще не существуют, просто создайте их внутри res / и обратите внимание, что вам нужно установить проект чтобы показать их для просмотра (см. изображение ниже).

для v24 вы просто используете тот, который у вас уже есть:

<?xml version="1.0" encoding="utf-8"?><layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
    android:drawable="@android:color/white"
    android:gravity="fill" />

<item

    android:gravity="center"
    android:src="@drawable/splash_screen" >
</item>

</layer-list>

для drawable-v21 вы используете следующее (примечание что по какой-то причине эти drawable не будут работать на API выше 23)

<?xml version="1.0" encoding="utf-8"?><layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
    android:drawable="@android:color/white"
    android:gravity="fill" />

<item android:gravity="center">
    <bitmap
        android:gravity="center"
        android:src="@drawable/splash_screen" />
</item>

</layer-list>

android будет тогда брать либо первый, либо второй актив в зависимости от API устройства, и тогда ваш заставка будет отлично выглядеть на всех устройствах.

BTW здесь - это документация по другим настройкам, которые можно реализовать не только в API устройства, но также в отношении размеров экрана, разрешения и многих других.