RecycleView宽度和ConstraintLayout

时间:2018-09-28 16:04:29

标签: android android-recyclerview android-viewpager android-constraintlayout

我在ViewPager的{​​{1}}内有ConstraintLayout。如果我在dp中设置了RecycleView具体,则两边都像这样的空白空间:

with concrete width

如果我将width设置为对边的引用:

enter image description here

但是我希望match_constraint可以容纳完整的RecycleView

但是,如果我放慢脚步,则尺寸正确,但是第一张图像不正确!)

enter image description here

如果我再次向上滚动,则新添加的图像正确。 enter image description here

该如何解决?

main.xml:

width

recycle.xml:

<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:layout_height="match_parent"
    android:orientation="vertical"
    tools:layout_editor_absoluteY="25dp">
    <android.support.design.widget.TabLayout
        android:id="@+id/tab_layout"
        android:layout_width="0dp"
        android:layout_height="55dp"
        app:layout_constraintBottom_toTopOf="@+id/view_pager"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:tabGravity="fill"
        app:tabMode="fixed" />
    <android.support.v4.view.ViewPager
        android:id="@+id/view_pager"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/tab_layout" />
</android.support.constraint.ConstraintLayout>

ViewHolder:

<?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="match_parent"
    android:layout_height="match_parent"
    tools:layout_editor_absoluteY="25dp">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycleView"
        android:layout_width="0dp"
        android:layout_height="430dp"
        android:layout_marginBottom="8dp"
        app:layout_constraintBottom_toTopOf="@+id/cardView"
        app:layout_constraintDimensionRatio=""
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0" />

    <android.support.v7.widget.CardView
        android:id="@+id/cardView"
        android:layout_width="335dp"
        android:layout_height="87dp"
        android:layout_marginEnd="16dp"
        android:layout_marginStart="16dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.529"
        app:layout_constraintStart_toStartOf="parent">

    </android.support.v7.widget.CardView>

</android.support.constraint.ConstraintLayout>

onCreateViewHolder:

class Holder extends RecyclerView.ViewHolder {

    private ImageView imageView;


    Holder(View itemView) {
        super(itemView);
        imageView = itemView.findViewById(R.id.imageView);
        imageView.setOnClickListener((view) -> someView.onClick(
                listItems.get(getAdapterPosition())));
    }

    void setImageView(Item item) {
        ImageItem imageItem = new ImageItem(imageView);
        someView.loadImage(item, imageItem, false);
        Animation animation =AnimationUtils.loadAnimation(imageView.getContext(), R.anim.scale_simple);
        imageView.startAnimation(animation);
    }


}

0 个答案:

没有答案