Question

我正在开发一个新的应用程序，预览显示Android Studio中的不同UI，而实际设备显示不同的UI是不同的，如何在真实设备中显示屏幕与预览中的相同。正如您在实际设备上看到的那样，缺少跳过文本

在我的XML文件下面。

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:attrs="http://schemas.android.com/apk/res-auto"
    >


    <ImageView
        android:id="@+id/vector_1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:adjustViewBounds="true"
        android:background="@drawable/vectors_1"
        app:layout_constraintTop_toTopOf="parent"
        tools:layout_editor_absoluteX="0dp" />

    <ImageView
        android:id="@+id/some_id"
        android:layout_width="221dp"
        android:layout_height="158dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:background="@drawable/doctor_appointment"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.442"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.233" />

    <TextView
        android:id="@+id/search_doct"
        android:layout_width="272dp"
        android:layout_height="82dp"
        android:layout_alignParentLeft="true"
        android:layout_marginLeft="54dp"
        android:layout_alignParentTop="true"
        android:layout_marginTop="292dp"
        android:gravity="top"
        android:text="@string/search_doct"
        android:textAppearance="@style/search_doct"
        app:layout_constraintBottom_toBottomOf="@id/some_id"
        app:layout_constraintHorizontal_bias="0.697"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="@id/vector_1"
        app:layout_constraintVertical_bias="0.0" />

    <TextView
        android:id="@+id/get_list_of"
        android:layout_width="217dp"
        android:layout_height="58dp"
        app:layout_constraintTop_toBottomOf="@id/search_doct"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:gravity="center_horizontal|top"
        android:text="@string/get_list_of"
        android:textAppearance="@style/get_list_of"
        />



    <com.rd.PageIndicatorView
        android:id="@+id/pageIndicatorView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.477"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.801"
        app:piv_animationType="scale"
        app:piv_dynamicCount="true"
        app:piv_interactiveAnimation="true"
        app:piv_selectedColor="@color/gray_50"
        app:piv_unselectedColor="@color/gray_300"
        app:piv_viewPager="@id/viewPager"
        attrs:piv_padding="12dp"
        attrs:piv_radius="8dp" />

    <TextView
        android:id="@+id/skip"
        android:layout_width="87dp"
        android:layout_height="43dp"
        android:layout_marginTop="636dp"
        android:gravity="center_horizontal|top"
        android:text="Skip"
        android:textAppearance="@style/skip"
        app:layout_constraintHorizontal_bias="0.537"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />


</androidx.constraintlayout.widget.ConstraintLayout>

在Android Studio中的预览窗口下方

我想知道我在哪里犯错，任何帮助将不胜感激。

Answer 1

您的错误是在视图和边距上使用固定的大小，因为不同的手机具有不同的屏幕大小，您可能会发现预览版面看起来很糟糕，而在真实设备上它将看起来完全不同。

您可以像这样使用约束布局percentage来解决此问题：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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/vector_1"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintHeight_percent="0.1"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:adjustViewBounds="true"
    android:background="@drawable/profile_icon"
    app:layout_constraintBottom_toTopOf="@+id/some_id"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<ImageView
    android:id="@+id/some_id"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintHeight_percent="0.1"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:background="@drawable/tasks_icon"
    app:layout_constraintBottom_toTopOf="@+id/search_doct"
    app:layout_constraintEnd_toEndOf="@+id/vector_1"
    app:layout_constraintStart_toStartOf="@+id/vector_1"
    app:layout_constraintTop_toBottomOf="@+id/vector_1" />

<TextView
    android:id="@+id/search_doct"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintHeight_percent="0.1"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:gravity="top"
    android:text="search_doct"
    app:layout_constraintBottom_toTopOf="@+id/get_list_of"
    app:layout_constraintEnd_toEndOf="@+id/vector_1"
    app:layout_constraintStart_toStartOf="@+id/vector_1"
    app:layout_constraintTop_toBottomOf="@+id/some_id" />

<TextView
    android:id="@+id/get_list_of"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintHeight_percent="0.1"
    app:layout_constraintWidth_percent="0.5"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:gravity="center_horizontal|top"
    android:text="get_list_of"
    app:layout_constraintBottom_toTopOf="@+id/pageIndicatorView"
    app:layout_constraintEnd_toEndOf="@+id/vector_1"
    app:layout_constraintStart_toStartOf="@+id/vector_1"
    app:layout_constraintTop_toBottomOf="@+id/search_doct" />


<Button
    android:id="@+id/pageIndicatorView"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintHeight_percent="0.1"

    app:layout_constraintDimensionRatio="1:1"
    android:layout_centerInParent="true"
    app:layout_constraintBottom_toTopOf="@+id/skip"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/get_list_of" />

<TextView
    android:id="@+id/skip"
    android:layout_width="0dp"
    android:layout_height="0dp"
    app:layout_constraintHeight_percent="0.1"
    app:layout_constraintWidth_percent="0.5"
    android:gravity="center_horizontal|top"
    android:text="Skip"
    android:textSize="20dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="@+id/vector_1"
    app:layout_constraintStart_toStartOf="@+id/vector_1"
    app:layout_constraintTop_toBottomOf="@+id/pageIndicatorView" />

</androidx.constraintlayout.widget.ConstraintLayout>

它看起来像这样：

为什么预览窗口显示的屏幕和实际设备不同？

1 个答案: