[Android文本[重复]中的dp或sp

问题描述 投票：2回答：2
我对Android有疑问，需要您的帮助。我有以下RadioButton：

<RadioButton android:id="@+id/r_Button_Standard" android:layout_width="95dp" android:layout_height="35dp" android:layout_weight="1" android:background="@drawable/background_selector" android:text="@string/radioButton_standard" android:checked="true" android:textColor="@drawable/text_selector" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.642" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" android:layout_marginLeft="10dp" app:layout_constraintVertical_bias="0.671" /> 

看起来像这样：RadioButton现在，Android Studio会生成一条警告，告诉我使用"Should use "sp" instead of "dp" for text sizes"，并进一步告诉"There are cases where you might need to use dp; typically this happens when the text is in a container with a specific dp-size. This will prevent the text from spilling outside the container. Note however that this means that the user's font size settings are not respected, so consider adjusting the layout itself to be more flexible."
所以现在我的问题是怎么办？基本上，该文本位于容器中，并且显然不应溢出到容器外部。所以我认为我应该使用dp。 “更灵活的布局”是什么意思？
评论：Altough'IntelliJ Amiya'结束了这个问题，并提供了一个问题的链接，根据他的观点，该问题回答了我的问题（Should use "sp" instead of "dp" for text sizes），我必须说，实际上并非如此。我说的是容器中的文本，而不是一般文本。
更新：这是我的XML布局文件：
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <ImageView
        android:id="@+id/imageView"
        tools:ignore="ContentDescription"
        android:layout_width="465dp"
        android:layout_height="262dp"
        android:scaleType="fitXY"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0"
        app:srcCompat="@drawable/test_dish_1" />

    <TextView
        android:id="@+id/cocktailName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Test "
        android:textColor="#000000"
        android:textSize="28dp"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.482"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.434" />


    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Zutaten: Zutat_1, Zutat_2, Zutat_3,\n Zutat_4, Zutat_5, Zutat_6"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.489"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textViewA"
        android:layout_width="95dp"
        android:layout_height="35dp"
        android:text="Option_2"
        android:textColor="#000000"
        android:textSize="22dp"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.012"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.671" />


    <ImageButton
        android:id="@+id/commentButton"
        android:layout_width="100dp"
        android:layout_height="50dp"
        android:background="@null"
        android:contentDescription="comment_Button"
        android:scaleType="fitCenter"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.799"
        app:srcCompat="@mipmap/comment" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/comment_TextView"
        android:textSize="18dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.025"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.729" />

    <CheckBox
        android:id="@+id/checkBox"
        android:layout_width="95dp"
        android:layout_height="35dp"
        android:checked="true"
        android:text="Check"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.967"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.761" />

    <Button
        android:id="@+id/ordering_button"
        android:layout_width="163dp"
        android:layout_height="72dp"
        android:background="@drawable/custom_button"
        android:text="Bestellen"
        android:textAllCaps="false"
        android:textColor="#121212"
        android:textSize="25sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.867" />


    <TextView
        android:id="@+id/textViewS"
        android:layout_width="95dp"
        android:layout_height="35dp"
        android:text="Option_1"
        android:textColor="#000000"
        android:textSize="22dp"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.012"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.584" />

    <LinearLayout
        android:background="#FFD600"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        android:id="@+id/bottom_layout"
        android:layout_width="0dp"
        android:layout_height="60dp">

        <Button
            android:id="@+id/button1"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_margin="4dp"
            android:layout_weight="1"
            android:background="@drawable/test_dish_1"
            android:text="Back" />


        <Button
            android:layout_gravity="center_vertical"
            android:id="@+id/button2"
            android:layout_weight="1"
            android:text="Button2"
            android:layout_width="0dp"
            android:layout_margin="4dp"
            android:layout_height="wrap_content"/>


        <Button
            android:layout_gravity="center_vertical"
            android:id="@+id/button3"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:text="Button3"
            android:layout_margin="4dp"
            android:layout_height="wrap_content"/>

        <Button
            android:layout_gravity="center_vertical"
            android:id="@+id/button4"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:text="Button1"
            android:layout_margin="4dp"
            android:layout_height="wrap_content"/>

    </LinearLayout>

    <RadioGroup
        android:id="@+id/radioGroup_Size"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintVertical_bias="0.583"
        app:layout_constraintHorizontal_bias="0.862"

        app:layout_constraintTop_toTopOf="parent">




        <RadioButton
            android:id="@+id/r_Button_Small"
            android:layout_width="95dp"
            android:layout_height="35dp"
            android:layout_weight="1"
            android:background="@drawable/background_selector"
            android:text="Klein"
            android:textColor="@drawable/text_selector"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.319"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:layout_marginLeft="10dp"
            app:layout_constraintVertical_bias="0.584" />

        <RadioButton
            android:id="@+id/r_Button_Medium"
            android:layout_width="95dp"
            android:layout_height="35dp"
            android:layout_weight="1"
            android:background="@drawable/background_selector"
            android:checked="true"
            android:text="Normal"
            android:textColor="@drawable/text_selector"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.962"
            app:layout_constraintStart_toStartOf="parent"
            android:layout_marginLeft="10dp"
            app:layout_constraintTop_toTopOf="parent"

            app:layout_constraintVertical_bias="0.583" />

        <RadioButton
            android:id="@+id/r_Button_Large"
            android:layout_width="95dp"
            android:layout_height="35dp"
            android:layout_weight="1"
            android:background="@drawable/background_selector"
            android:text="Groß"
            android:textColor="@drawable/text_selector"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.962"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:layout_marginLeft="10dp"
            app:layout_constraintVertical_bias="0.584" />

    </RadioGroup>

    <RadioGroup
        android:id="@+id/radioGroup_alcohol"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintVertical_bias="0.671"
        app:layout_constraintHorizontal_bias="0.872"

        app:layout_constraintTop_toTopOf="parent">

        <RadioButton
            android:id="@+id/r_Button_Less"
            android:layout_width="95dp"
            android:layout_height="35dp"
            android:layout_weight="1"
            android:background="@drawable/background_selector"
            android:text="Weniger"
            android:textColor="@drawable/text_selector"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.319"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="0.671" />

        <RadioButton
            android:id="@+id/r_Button_Standard"
            android:layout_width="95dp"
            android:layout_height="35dp"
            android:layout_weight="1"
            android:background="@drawable/background_selector"
            android:text="@string/radioButton_standard"
            android:checked="true"
            android:textColor="@drawable/text_selector"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.642"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:layout_marginLeft="10dp"
            app:layout_constraintVertical_bias="0.671" />

        <RadioButton
            android:id="@+id/r_Button_More"
            android:layout_width="95dp"
            android:layout_height="35dp"
            android:layout_weight="1"
            android:background="@drawable/background_selector"
            android:text="Mehr"
            android:textColor="@drawable/text_selector"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.962"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:layout_marginLeft="10dp"
            app:layout_constraintVertical_bias="0.671" />


    </RadioGroup>
</android.support.constraint.ConstraintLayout>
android radio-button screen-resolution
2个回答
1
投票
阅读本文以完全理解SP，DP和Piexel：

Medium Article

TL; DR

SP == DP，但设备设置应用程序中的用户字体大小首选项也将应用于

考虑到用户在设置中增加了字体大小，可能他想在您的应用程序中看到更大的字体大小，sp会解决这个问题。

  • <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:id="@+id/imageView" android:layout_width="0dp" android:layout_height="250dp" android:scaleType="fitXY" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.0" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:srcCompat="@drawable/test_dish_1" tools:ignore="ContentDescription" /> <TextView android:id="@+id/cocktailName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="16dp" android:text="Test " android:textColor="#000000" android:textSize="28dp" android:textStyle="bold" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.482" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/imageView" /> <TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="8dp" android:text="Zutaten: Zutat_1, Zutat_2, Zutat_3,\n Zutat_4, Zutat_5, Zutat_6" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.489" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/cocktailName" /> <TextView android:id="@+id/textViewA" android:layout_width="95dp" android:layout_height="35dp" android:layout_marginStart="8dp" android:layout_marginTop="32dp" android:text="Option_2" android:textColor="#000000" android:textSize="22dp" android:textStyle="bold" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/textViewS" /> <ImageButton android:id="@+id/commentButton" android:layout_width="100dp" android:layout_height="50dp" android:layout_marginStart="8dp" android:layout_marginTop="8dp" android:background="@null" android:contentDescription="comment_Button" android:scaleType="fitCenter" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/textView2" app:srcCompat="@mipmap/comment" /> <TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginStart="8dp" android:layout_marginTop="16dp" android:text="@string/comment_TextView" android:textSize="18dp" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.025" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/textViewA" /> <CheckBox android:id="@+id/checkBox" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginEnd="16dp" android:checked="true" android:text="Check" app:layout_constraintBottom_toTopOf="@+id/ordering_button" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintTop_toBottomOf="@+id/radioGroup_alcohol" /> <Button android:id="@+id/ordering_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="8dp" android:background="@drawable/custom_button" android:padding="16dp" android:text="Bestellen" android:textAllCaps="false" android:textColor="#121212" android:textSize="25sp" app:layout_constraintBottom_toTopOf="@+id/bottom_layout" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.5" app:layout_constraintStart_toStartOf="parent" /> <TextView android:id="@+id/textViewS" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginStart="8dp" android:layout_marginTop="32dp" android:text="Option_1" android:textColor="#000000" android:textSize="22dp" android:textStyle="bold" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@+id/textView3" /> <LinearLayout android:background="#FFD600" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" android:id="@+id/bottom_layout" android:layout_width="0dp" android:layout_height="60dp"> <Button android:id="@+id/button1" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:layout_margin="4dp" android:layout_weight="1" android:background="@drawable/test_dish_1" android:text="Back" /> <Button android:layout_gravity="center_vertical" android:id="@+id/button2" android:layout_weight="1" android:text="Button2" android:layout_width="0dp" android:layout_margin="4dp" android:layout_height="wrap_content"/> <Button android:layout_gravity="center_vertical" android:id="@+id/button3" android:layout_width="0dp" android:layout_weight="1" android:text="Button3" android:layout_margin="4dp" android:layout_height="wrap_content"/> <Button android:layout_gravity="center_vertical" android:id="@+id/button4" android:layout_width="0dp" android:layout_weight="1" android:text="Button1" android:layout_margin="4dp" android:layout_height="wrap_content"/> </LinearLayout> <RadioGroup android:id="@+id/radioGroup_Size" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginStart="8dp" android:layout_marginTop="32dp" android:layout_marginEnd="8dp" android:orientation="horizontal" app:layout_constraintBottom_toBottomOf="@+id/textViewS" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toEndOf="@+id/textViewS" app:layout_constraintTop_toBottomOf="@+id/textView3"> <RadioButton android:id="@+id/r_Button_Small" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:background="@drawable/background_selector" android:padding="4" android:text="Klein" android:textColor="@drawable/text_selector" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.319" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.584" /> <RadioButton android:id="@+id/r_Button_Medium" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:background="@drawable/background_selector" android:checked="true" android:padding="4dp" android:text="Normal" android:textColor="@drawable/text_selector" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.962" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.583" /> <RadioButton android:id="@+id/r_Button_Large" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:background="@drawable/background_selector" android:padding="4dp" android:text="Groß" android:textColor="@drawable/text_selector" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.962" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.584" /> </RadioGroup> <RadioGroup android:id="@+id/radioGroup_alcohol" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginStart="8dp" android:layout_marginTop="32dp" android:layout_marginEnd="8dp" android:orientation="horizontal" app:layout_constraintBottom_toBottomOf="@+id/textViewA" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toEndOf="@+id/textViewA" app:layout_constraintTop_toBottomOf="@+id/radioGroup_Size"> <RadioButton android:id="@+id/r_Button_Less" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:background="@drawable/background_selector" android:padding="4dp" android:text="Weniger" android:textColor="@drawable/text_selector" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.319" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.671" /> <RadioButton android:id="@+id/r_Button_Standard" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:background="@drawable/background_selector" android:checked="true" android:padding="4dp" android:text="@string/radioButton_standard" android:textColor="@drawable/text_selector" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.642" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.671" /> <RadioButton android:id="@+id/r_Button_More" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_weight="1" android:background="@drawable/background_selector" android:padding="4dp" android:text="Mehr" android:textColor="@drawable/text_selector" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.962" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.671" /> </RadioGroup> </android.support.constraint.ConstraintLayout>
    • 0
    投票
    我们更喜欢使用sp作为屏幕上的文本，因为如果用户想通过设置（例如：小，中，大）更改文本大小，则会根据屏幕自动缩放这些文本。但是在使用dp的情况下，每部电话的像素密度都不同（例如：在4 x 4正方形空间中，某些电话可能有4像素，而其他电话则有16像素），因此不建议使用dp 。
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