在 constraintView 中为 imageView 设置 minHeight 不起作用
Setting minHeight for an imageView within a constraintView not working
我一段时间以来第一次开发 Android 应用程序并尝试使用约束布局,因为我需要不同 phone 尺寸的屏幕。
我将页面中的元素链接在一起,因此它们都相互关联,但是在顶部 imageView 上设置 minHeight 不起作用。图像被其他元素挤压。我需要蓝色按钮更小,图片更突出。
此外,我使用的按钮图像被裁剪成准确的图像,但是当我将它们添加到视图时图像有边距,我不明白这一点。
<?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:id="@+id/home_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background"
tools:context=".MainActivity">
<ImageView
android:id="@+id/topLogo"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="@+id/keyVisual"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/toplogo" />
<ImageView
android:id="@+id/keyVisual"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
app:layout_constraintBottom_toTopOf="@id/homeText"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/topLogo"
app:srcCompat="@drawable/keyvisual" />
<TextView
android:id="@+id/homeText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginTop="24dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
android:layout_marginBottom="24dp"
android:text="@string/hometext"
app:layout_constraintBottom_toTopOf="@id/startButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/keyVisual" />
<ImageView
android:id="@+id/startButton"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginRight="32dp"
android:layout_marginEnd="32dp"
app:layout_constraintBottom_toTopOf="@id/langButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/homeText"
app:srcCompat="@drawable/startbutton" />
<ImageView
android:id="@+id/langButton"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
app:layout_constraintBottom_toTopOf="@id/tabBar"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/startButton"
app:srcCompat="@drawable/startbutton" />
<android.support.design.widget.TabLayout
android:id="@+id/tabBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="@id/langButton">
<android.support.design.widget.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Monday" />
<android.support.design.widget.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tuesday" />
<android.support.design.widget.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Wednesday" />
</android.support.design.widget.TabLayout>
</android.support.constraint.ConstraintLayout>
您可以使用这些属性使您的图像尺寸响应:
app:layout_constraintHeight_percent="0.25"
app:layout_constraintWidth_percent="0.25"
它将告诉您的图像在高度和宽度上都等于屏幕尺寸的 1/4
,这样您的图像将适合所有屏幕尺寸。
I think there should be Code android:background="@drawable/startbutton"
instead of app:srcCompat="@drawable/startbutton"
then your problem is Solve.
And I have a suggestion that do not use app:srcCompat="@drawable/startbutton"
again to apply the image, but use android:src="@drawable/startbutton"
instead.
我一段时间以来第一次开发 Android 应用程序并尝试使用约束布局,因为我需要不同 phone 尺寸的屏幕。
我将页面中的元素链接在一起,因此它们都相互关联,但是在顶部 imageView 上设置 minHeight 不起作用。图像被其他元素挤压。我需要蓝色按钮更小,图片更突出。
此外,我使用的按钮图像被裁剪成准确的图像,但是当我将它们添加到视图时图像有边距,我不明白这一点。
<?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:id="@+id/home_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background"
tools:context=".MainActivity">
<ImageView
android:id="@+id/topLogo"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="@+id/keyVisual"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/toplogo" />
<ImageView
android:id="@+id/keyVisual"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
app:layout_constraintBottom_toTopOf="@id/homeText"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/topLogo"
app:srcCompat="@drawable/keyvisual" />
<TextView
android:id="@+id/homeText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginTop="24dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
android:layout_marginBottom="24dp"
android:text="@string/hometext"
app:layout_constraintBottom_toTopOf="@id/startButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/keyVisual" />
<ImageView
android:id="@+id/startButton"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginRight="32dp"
android:layout_marginEnd="32dp"
app:layout_constraintBottom_toTopOf="@id/langButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/homeText"
app:srcCompat="@drawable/startbutton" />
<ImageView
android:id="@+id/langButton"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginLeft="32dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
app:layout_constraintBottom_toTopOf="@id/tabBar"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/startButton"
app:srcCompat="@drawable/startbutton" />
<android.support.design.widget.TabLayout
android:id="@+id/tabBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="@id/langButton">
<android.support.design.widget.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Monday" />
<android.support.design.widget.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tuesday" />
<android.support.design.widget.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Wednesday" />
</android.support.design.widget.TabLayout>
</android.support.constraint.ConstraintLayout>
您可以使用这些属性使您的图像尺寸响应:
app:layout_constraintHeight_percent="0.25"
app:layout_constraintWidth_percent="0.25"
它将告诉您的图像在高度和宽度上都等于屏幕尺寸的 1/4
,这样您的图像将适合所有屏幕尺寸。
I think there should be Code
android:background="@drawable/startbutton"
instead ofapp:srcCompat="@drawable/startbutton"
then your problem is Solve.And I have a suggestion that do not use
app:srcCompat="@drawable/startbutton"
again to apply the image, but useandroid:src="@drawable/startbutton"
instead.