如何为ConstraintLayout中的子视图赋予重力

Question

我的工作Constraintlayout我可以调整孩子的意见,但我不能能够对准TextView的比重由左到右是有什么办法让TextView的对齐从左至右

这是代码

<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="match_parent"
    android:id="@+id/mylotslist_itemview"
    android:layout_height="wrap_content">
    <TextView
        android:id="@+id/serialnumber"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:gravity="left"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:padding="@dimen/padding5"
        android:text="1"
        android:textColor="@color/black"
        android:textSize="@dimen/list_itemtextsize"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0" />
    <TextView
        android:id="@+id/lotnumber"
        android:gravity="left"
        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:padding="@dimen/padding5"
        android:text="50"
        android:textColor="@color/black"
        android:textSize="@dimen/list_itemtextsize"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.08"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0" />
    <TextView
        android:id="@+id/sellername"
        android:layout_width="wrap_content"
        android:layout_gravity="center"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:gravity="right"
        android:padding="@dimen/padding5"
        android:text="ffffffffff"
        android:textColor="@color/black"
  app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintVertical_bias="0.0"
         />

    <TextView
        android:id="@+id/lotstatus"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:gravity="left"
        android:layout_marginTop="8dp"
        android:background="@color/lot_statusfalse"
        android:paddingBottom="@dimen/padding5"
        android:paddingLeft="@dimen/padding5"
        android:paddingRight="@dimen/padding5"
        android:paddingTop="@dimen/padding5"
        android:text="Alloted and Empty"
        android:textColor="@color/white"
        android:textSize="@dimen/list_itemtextsize"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.66"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0" />
    <TextView
        android:id="@+id/createddate"
        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="left"

        android:padding="@dimen/padding5"
        android:text="01-FEB-2018 10:30 AM"
        android:textColor="@color/black"
        android:textSize="@dimen/list_itemtextsize"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="1.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0" />
</android.support.constraint.ConstraintLayout>

我希望我的textview像这样对齐.有没有可能这样对齐的方法？

Answer 1

您需要app:layout_constraintStart_toStartOf="parent"从除第一个视图之外的所有视图中删除。因为它将在左侧分配您的所有视图。

<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/mylotslist_itemview"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/serialnumber"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="left"
        android:padding="8dp"
        android:text="1"
        android:textColor="@color/black"
        android:textSize="@dimen/font_normal"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintWidth_percent="0.1" />

    <TextView
        android:id="@+id/lotnumber"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="left"
        android:padding="8dp"
        android:text="50"
        android:textColor="@color/black"
        android:textSize="@dimen/font_normal"
        app:layout_constraintStart_toEndOf="@+id/serialnumber"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintWidth_percent="0.1" />

    <TextView
        android:id="@+id/sellername"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="end"
        android:padding="8dp"
        android:text="ffffffffff"
        android:textColor="@color/black"
        app:layout_constraintStart_toEndOf="@+id/lotnumber"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintWidth_percent="0.2" />

    <TextView
        android:id="@+id/lotstatus"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimary"
        android:gravity="start"
        android:padding="8dp"
        android:text="Alloted and Empty"
        android:textColor="@color/white"
        android:textSize="@dimen/font_normal"
        app:layout_constraintStart_toEndOf="@+id/sellername"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintWidth_percent="0.3" />

    <TextView
        android:id="@+id/createddate"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="start"
        android:padding="8dp"
        android:text="01-FEB-2018 10:30 AM"
        android:textColor="@color/black"
        android:textSize="@dimen/font_normal"
        app:layout_constraintStart_toEndOf="@+id/lotstatus"
        app:layout_constraintWidth_percent="0.3" />
</android.support.constraint.ConstraintLayout>