TextView自动调整字体大小_autosizemintextsize和autosizemaxtextsize同时设置

autoSizeMinTextSize、autoSizeMaxTextSize、autoSizeTextType
设置TextView自动调整字体大小

1、demo示例

<string name="short_word">A B C D E F</string>
<string name="long_word">a b c d e f d h i g k l m n o p q r s t u v w x y z A B C D E F G H I G K L M N O P O R S T U V W X Y Z a b c d e f d h i g k l m n o p q r s t u v w x y z</string>
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	<TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="20sp"
        android:background="@color/black"
        android:gravity="center_vertical"
        android:maxLines="2"
        android:minLines="1"
        android:text="@string/short_word"
        android:textColor="@color/white"
        android:textSize="40sp"
        app:autoSizeMaxTextSize="40sp"
        app:autoSizeMinTextSize="10sp"
        app:autoSizeStepGranularity="1sp"
        app:autoSizeTextType="uniform" />
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short_word

long_word

2、属性说明

注：同时设置了autotoSizePresetSizes和autoSizeStepGranularity，则autoSizeStepGranularity的值将被忽略

autotoSizePresetSizes的使用

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <array name="auto_text_size">
        <item>10sp</item>
        <item>15sp</item>
        <item>30sp</item>
        <item>38sp</item>
        <item>39sp</item>
        <item>40sp</item>
    </array>
</resources>
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	<TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="20sp"
        android:background="@color/black"
        android:gravity="center_vertical"
        android:maxLines="2"
        android:minLines="1"
        android:text="@string/long_word"
        android:textColor="@color/white"
        android:textSize="40sp"
        app:autoSizeMaxTextSize="40sp"
        app:autoSizeMinTextSize="10sp"
        app:autoSizePresetSizes="@array/auto_text_size"
        app:autoSizeTextType="uniform" />
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