屏幕上有3个垂直部分:
我不明白为什么当listview中有更多元素时,它会将整个屏幕放到底部而不会留下第3部分的位置,并使第3部分无法访问且不可见。
<?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="wrap_content"
android:layout_height="wrap_content"
tools:context="com.transport.ScreenDelivery">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:gravity="center_vertical"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/textView_customer"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ListView
android:id="@+id/listView_pallets"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/textView_signature"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>
</android.support.constraint.ConstraintLayout>
答案 0 :(得分:1)
我相信您只能使用约束布局找到解决方案并完全删除线性布局,但我不太了解ConstraintLayout可以帮助您。但是,您可以为Outermost LinearLayout中的元素赋予权重。例如将android:weightSum="3"
分配给最外层的LinearLayout,然后android:layout_weight="1"
分配给内部元素(在您的情况下为其他LinearLayouts)
答案 1 :(得分:1)
你去吧
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="com.transport.ScreenDelivery">
<LinearLayout
android:id="@+id/bottom_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/textView_expectedSum"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="Очаквана сума"
android:textSize="16sp"
tools:text="Очаквана сума" />
<TextView
android:id="@+id/textView_expectedSumNum"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="-"
android:textSize="16sp"
tools:text="-" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/textView_signature"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="Подпис"
android:textSize="16sp"
tools:text="Подпис" />
<TextView
android:id="@+id/textView_signatureField"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:textSize="16sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/textView_returnSum"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="Сума за връщане"
android:textSize="16sp"
tools:text="Сума за връщане" />
<TextView
android:id="@+id/_returnSumField"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:textSize="16sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="@+id/textView_remarks"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="Бележка"
android:textSize="16sp"
tools:text="Бележка" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:orientation="vertical">
<Spinner
android:id="@+id/spinner_note"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:drawable/btn_dropdown"
android:spinnerMode="dropdown" />
<EditText
android:id="@+id/editText_note"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint=""
android:inputType="text"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:baselineAligned="false"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="@+id/textView_image"
android:layout_width="269dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="Снимка"
android:textSize="16sp"
tools:text="Снимка" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:orientation="horizontal">
<Button
android:id="@+id/button_takePhoto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="150dp"
android:onClick="takePhoto"
android:text="Снимай"
tools:text="Снимай" />
<ImageView
android:id="@+id/imageView_deliveryPhoto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="Снимка на доставката"
android:maxHeight="200dp"
android:maxWidth="200dp"
android:minHeight="50dp"
android:minWidth="50dp"
app:srcCompat="?android:attr/alertDialogIcon" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_horizontal"
android:orientation="horizontal">
<Button
android:id="@+id/button_save"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Запази"
tools:text="Запази" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/top_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/textView_customer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Клиент"
android:textSize="20sp"
tools:text="Клиент" />
<TextView
android:id="@+id/textView_palletCount"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Брой палета"
android:textSize="20sp"
tools:text="Брой палета" />
<TextView
android:id="@+id/textView_palletCountNum"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="-"
android:textSize="20sp"
tools:text="-" />
</LinearLayout>
<ListView
android:id="@+id/listView_pallets"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/bottom_layout"
android:layout_below="@id/top_layout" />
</RelativeLayout>