在Android studio中如何将按钮移动到较低的位置?它们保持在顶部,固定 我希望他们呆在应用程序的中间,但我不能移动它们。我想在布局上有一些限制。这是代码,3个简单的按钮集成在布局中。我想知道是否有任何行代码可以帮助我降低它们,即使是一个按钮一个按钮或所有的块 <?xml version="1.0" encoding="utf-8"?> <ScrollView 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" tools:context=".MainActivity"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:paddingBottom="20dp"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <Button android:id="@+id/b1" style="@style/Widget.AppCompat.Button" android:layout_width="match_parent" android:layout_height="120dp" android:layout_margin="2dp" android:layout_weight="1" android:adjustViewBounds="true" android:background="#f6f3e0" android:drawableLeft="@drawable/capitole" android:foreground="?attr/selectableItemBackground" android:padding-left android:text="Button1" android:textAppearance="@style/TextAppearance.AppCompat.Button"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <Button android:id="@+id/b2" style="@style/Widget.AppCompat.Button" android:layout_width="match_parent" android:layout_height="120dp" android:layout_margin="2dp" android:layout_weight="1" android:adjustViewBounds="true" android:background="#cbe8eb" android:drawableLeft="@drawable/random" android:foreground="?attr/selectableItemBackground" android:padding-left android:text="Random" android:textAppearance="@style/TextAppearance.AppCompat.Button" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <Button android:id="@+id/b3" style="@style/Widget.AppCompat.Button" android:layout_width="match_parent" android:layout_height="120dp" android:layout_margin="2dp" android:background="@android:color/holo_orange_light" android:drawableLeft="@drawable/developer" android:foreground="?attr/selectableItemBackground" android:paddingDown="45dp" android:text="Developer" android:textAppearance="@style/TextAppearance.AppCompat.Button" /> </LinearLayout> </LinearLayout>
在第一个在Android studio中如何将按钮移动到较低的位置?它们保持在顶部,固定 我希望他们呆在应用程序的中间,但我不能移动它们。我想在布局上有一些限制。这是代码,3个简单的按钮集成在布局中。我想知道是否有任何行代码可以帮助我降低它们,即使是一个按钮一个按钮或所有的块 <?xml version="1.0" encoding="utf-8"?> <ScrollView 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" tools:context=".MainActivity"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:paddingBottom="20dp"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <Button android:id="@+id/b1" style="@style/Widget.AppCompat.Button" android:layout_width="match_parent" android:layout_height="120dp" android:layout_margin="2dp" android:layout_weight="1" android:adjustViewBounds="true" android:background="#f6f3e0" android:drawableLeft="@drawable/capitole" android:foreground="?attr/selectableItemBackground" android:padding-left android:text="Button1" android:textAppearance="@style/TextAppearance.AppCompat.Button"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <Button android:id="@+id/b2" style="@style/Widget.AppCompat.Button" android:layout_width="match_parent" android:layout_height="120dp" android:layout_margin="2dp" android:layout_weight="1" android:adjustViewBounds="true" android:background="#cbe8eb" android:drawableLeft="@drawable/random" android:foreground="?attr/selectableItemBackground" android:padding-left android:text="Random" android:textAppearance="@style/TextAppearance.AppCompat.Button" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <Button android:id="@+id/b3" style="@style/Widget.AppCompat.Button" android:layout_width="match_parent" android:layout_height="120dp" android:layout_margin="2dp" android:background="@android:color/holo_orange_light" android:drawableLeft="@drawable/developer" android:foreground="?attr/selectableItemBackground" android:paddingDown="45dp" android:text="Developer" android:textAppearance="@style/TextAppearance.AppCompat.Button" /> </LinearLayout> </LinearLayout>,android,android-layout,button,android-studio-3.0,Android,Android Layout,Button,Android Studio 3.0,在第一个线性布局中,添加android:layout\u gravity=“center” 在第一个线性布局中,添加android:layout\u gravity=“center” 为什么要将ScrollView作为父布局?为什么要将ScrollView作为父布局? <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/ap
线性布局中,添加android:layout\u gravity=“center”
在第一个线性布局中,添加android:layout\u gravity=“center”
为什么要将ScrollView作为父布局?为什么要将ScrollView作为父布局?
<ScrollView 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"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="center"
android:paddingBottom="20dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="@+id/b1"
style="@style/Widget.AppCompat.Button"
android:layout_width="match_parent"
android:layout_height="120dp"
android:layout_margin="2dp"
android:layout_weight="1"
android:adjustViewBounds="true"
android:background="#f6f3e0"
android:drawableLeft="@drawable/capitole"
android:foreground="?attr/selectableItemBackground"
android:padding-left
android:text="Button1"
android:textAppearance="@style/TextAppearance.AppCompat.Button"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="@+id/b2"
style="@style/Widget.AppCompat.Button"
android:layout_width="match_parent"
android:layout_height="120dp"
android:layout_margin="2dp"
android:layout_weight="1"
android:adjustViewBounds="true"
android:background="#cbe8eb"
android:drawableLeft="@drawable/random"
android:foreground="?attr/selectableItemBackground"
android:padding-left
android:text="Random"
android:textAppearance="@style/TextAppearance.AppCompat.Button" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="@+id/b3"
style="@style/Widget.AppCompat.Button"
android:layout_width="match_parent"
android:layout_height="120dp"
android:layout_margin="2dp"
android:background="@android:color/holo_orange_light"
android:drawableLeft="@drawable/developer"
android:foreground="?attr/selectableItemBackground"
android:paddingDown="45dp"
android:text="Developer"
android:textAppearance="@style/TextAppearance.AppCompat.Button" />
</LinearLayout>
</LinearLayout>