Android-Begrüßungsbildschirm VectorDrawable

Ich möchte ein VectorDrawable in meinem Begrüßungsbildschirm anzeigen

<?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>

Mein SVG hat android:width="320dp"undandroid: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"/>
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        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"/>
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        android:fillColor="#3F3D56"/>
    <path
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        android:fillColor="#3F3D56"/>
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        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"/>
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        android:fillColor="#FF6584"/>
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        android:fillColor="#3F3D56"/>
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        android:fillColor="#3F3D56"/>
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        android:strokeAlpha="0.2"
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        android:fillAlpha="0.2"/>
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    <path
        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>

Ich habe in Android 8 (360dp x 640dp Gerät) getestet und alles ist in Ordnung, aber in Android 5.1.1 (320dp x 480dp Gerät) ist es deformiert, mein VectorDrawable-Bildschirm gefüllt und verliert das Seitenverhältnis. Wie kann ich das beheben?

und Thema

<?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>

— WebMaster
quelle

@ ManiKandan Warum 24dp? Mein SVG ist kein Symbol, es ist eine große Illustration

— WebMaster

@ManiKandan Ich habe den Beitrag aktualisiert und den vollständigen Vektor hinzugefügt

— WebMaster

Ich habe es schon einmal gepostet, die erste XML ist mein Splash-Layout und die zweite XML ist Vektor, die dritte ist Thema

— WebMaster

Ich hatte das gleiche Problem. Bitte schauen Sie sich meine Antwort hier an. Stackoverflow.com/questions/50327633/…

— quealegriamasalegre

Sie können sich auch eine zusammengefasste Version meiner Antwort auf dieses Problem unten

— ansehen

VectorDrawabledefiniert ein statisch zeichnbares Objekt. Ähnlich wie beim SVG-Format wird jede Vektorgrafik als Baumhierarchie definiert, die aus Pfad- und Gruppenobjekten besteht. Jeder Pfad enthält die Geometrie des Objektumrisses und die Gruppe enthält Details für die Transformation.

Sie können SDP verwenden - eine skalierbare Größeneinheit.

Ein Android SDK, das eine neue Größeneinheit bietet - sdp (skalierbares dp). Diese Größeneinheit skaliert mit der Bildschirmgröße. Es kann Android-Entwicklern bei der Unterstützung mehrerer Bildschirme helfen.

So fügen Sie Ihrem Projekt SDP hinzu (mit Android Studio und Gradle) build.gradle

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

Fügen Sie nun sdp anstelle von dp hinzu .

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

Hinweis - Verwenden Sie AppCompatImageView (With app:srcCompat) anstelle von ImageView in Ihrem Layout.

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

— IntelliJ Amiya
quelle

Aber hilft die Bildansicht tatsächlich, wenn ein Begrüßungsbildschirm "richtig" implementiert wird? Wenn es das Seitenverhältnis auf allen APIs

— beibehält,

Das Problem hat mit den APIs 21, 22 und 23 zu tun, die Sie benötigen, um das Drawable um eine Bitmap zu wickeln. Sie müssen lediglich 2 Versionen Ihrer Liste mit zeichnbaren Ebenen erstellen und eine in drawable-v22 und die andere in drawable-v24 ablegen. Wenn diese Ordner noch nicht vorhanden sind, erstellen Sie sie einfach in res / und beachten Sie, dass Sie das Projekt festlegen müssen Ansicht zum Poject, um sie zu sehen (siehe Bild unten).

Für v24 verwenden Sie einfach die, die Sie bereits haben:

<?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>

Für drawable-v21 verwenden Sie Folgendes (beachten Sie, dass diese Drawable aus irgendeinem Grund nicht für APIs funktionieren, die höher als 23 sind).

<?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 nimmt dann entweder das erste oder das zweite Asset, abhängig von der API des Geräts, und dann sieht Ihr Begrüßungsbildschirm auf allen Geräten großartig aus.

Übrigens finden Sie hier die Dokumentation zu anderen Anpassungen, die Sie nicht nur für die Geräte-API implementieren können, sondern auch für Bildschirmgrößen, Auflösung und vieles mehr.

— quealegriamasalegre
quelle