LinearLayout中的多个RelativeLayout显示错误

Question

我有一个MoodTracker应用程序，每24小时将日常情绪存储到prefs中，并显示最近7天的心情历史。 我的问题如下： 我的历史布局在LinearLayout中有7个相对布局（每天一个）。 预览是完美的，另一个是好的。但是当我运行应用程序时，我只能看到4/7布局，每个布局都比预期的要大......这是我的代码： XML：https://github.com/matteovaccari/MoodTracker/blob/master/app/src/main/res/layout/activity_mood_history.xml java：https://github.com/matteovaccari/MoodTracker/blob/master/app/src/main/java/com/matt/android/moodtracker_v2/controllers/MoodHistoryActivity.java 提前致谢

Answer 1

问题出在您的RelativeLayouts中：

android:layout_height="match_parent"
android:layout_weight="1"

如果您使用layout_weight并且希望7 RelativeLayouts占用相等的空间，则应设置layout_height =“0”：

android:layout_height="0"
android:layout_weight="1"

Answer 2

在每个RelativeLayout中进行以下更改：

1. 将'android：layout_height'中的每一个更改为0
2. 添加'layout_weight'属性并将其值设置为1

Answer 3

不要在视图上使用android:layout_weight或固定大小 - 它可能适用于这样的小布局，但在大布局中，它可能会影响您的屏幕性能，在视图上使用固定大小时，它不响应所有屏幕大小。 你最好使用constraintlayout来获得一个响应所有设备的漂亮屏幕：

<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:id="@+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".Fragments.MenusDesign.BookMenu.BookMenu">


<TextView
    android:id="@+id/activity_historic_text_seven"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentStart="true"

    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/activity_historic_btn_five"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_text_six"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_text_six"
    app:layout_constraintTop_toTopOf="@+id/activity_historic_btn_five"
    tools:text="string/day_7" />

<Button
    android:id="@+id/activity_historic_btn_seven"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginBottom="8dp"
    android:text="6"
    app:layout_constraintBottom_toTopOf="@+id/guideline11"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_btn_four"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_btn_four"
    app:layout_constraintTop_toTopOf="@+id/guideline10" />


<TextView
    android:id="@+id/activity_historic_text_six"
    android:layout_width="wrap_content"
    android:layout_height="20dp"
    android:layout_alignParentStart="true"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/activity_historic_btn_seven"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_text_five"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_text_five"
    app:layout_constraintTop_toTopOf="@+id/activity_historic_btn_seven"
    tools:text="string/day_6" />

<Button
    android:id="@+id/activity_historic_btn_six"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginBottom="8dp"
    android:text="4"
    app:layout_constraintBottom_toTopOf="@+id/guideline9"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_btn_three"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_btn_three"
    app:layout_constraintTop_toTopOf="@+id/guideline8" />


<TextView
    android:id="@+id/activity_historic_text_five"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentStart="true"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/activity_historic_btn_four"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_text_four"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_text_four"
    app:layout_constraintTop_toTopOf="@+id/activity_historic_btn_four"
    tools:text="string/day_5" />

<Button
    android:id="@+id/activity_historic_btn_five"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginBottom="8dp"
    android:text="7"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_btn_seven"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_btn_seven"
    app:layout_constraintTop_toTopOf="@+id/guideline11" />


<TextView
    android:id="@+id/activity_historic_text_four"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentStart="true"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/activity_historic_btn_six"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_text_three"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_text_three"
    app:layout_constraintTop_toTopOf="@+id/activity_historic_btn_six"
    tools:text="string/day_4" />

<Button
    android:id="@+id/activity_historic_btn_four"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginBottom="8dp"
    android:text="5"
    app:layout_constraintBottom_toTopOf="@+id/guideline10"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_btn_six"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_btn_six"
    app:layout_constraintTop_toTopOf="@+id/guideline9" />" />


<TextView
    android:id="@+id/activity_historic_text_three"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentStart="true"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/activity_historic_btn_three"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_text_two"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_text_two"
    app:layout_constraintTop_toTopOf="@+id/activity_historic_btn_three"
    tools:text="string/day_3" />

<Button
    android:id="@+id/activity_historic_btn_three"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginBottom="8dp"
    android:text="3"
    app:layout_constraintBottom_toTopOf="@+id/guideline8"
    app:layout_constraintEnd_toEndOf="@+id/button6"
    app:layout_constraintStart_toStartOf="@+id/button6"
    app:layout_constraintTop_toTopOf="@+id/guideline7" />


<TextView
    android:id="@+id/activity_historic_text_two"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentStart="true"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/button6"
    app:layout_constraintEnd_toEndOf="@+id/activity_historic_text_one"
    app:layout_constraintStart_toStartOf="@+id/activity_historic_text_one"
    app:layout_constraintTop_toTopOf="@+id/button6"
    tools:text="string/day_2"/>

<Button
    android:id="@+id/button6"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginBottom="8dp"
    android:text="2"
    app:layout_constraintBottom_toTopOf="@+id/guideline7"
    app:layout_constraintEnd_toEndOf="@+id/button"
    app:layout_constraintStart_toStartOf="@+id/button"
    app:layout_constraintTop_toTopOf="@+id/guideline6" />


<TextView
    android:id="@+id/activity_historic_text_one"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentStart="true"
    android:layout_marginStart="8dp"
    android:layout_marginEnd="8dp"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/button"
    app:layout_constraintEnd_toStartOf="@+id/guideline12"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/button"
    tools:text="string/day_1" />

<Button
    android:id="@+id/button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="1"
    app:layout_constraintBottom_toTopOf="@+id/guideline6"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="@+id/guideline12"
    app:layout_constraintTop_toTopOf="parent" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline6"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.142" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline7"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.28" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline8"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.42" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline9"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.57" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline10"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.714" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline11"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.857" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline12"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:layout_constraintGuide_percent="0.5" />