回收器查看项目高度和重力不起作用

Question

我在水平回收器视图中的物品高度和重力有问题，如图所示：回收器查看物品高度和重力不起作用

如何将物品高度设置为与回收器视图底部相同的高度和重力？

谢谢你的帮助。

我的Activity_Drill_Graph.xml代码：

<?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:context=".Drill_Graph_Activity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="@+id/toolbar_drill_graph"
layout="@layout/toolbar_drill_graph" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="@dimen/margin_5dp"
android:background="@color/grey"
android:gravity="bottom"
android:orientation="horizontal"
android:weightSum="100">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="bottom"
android:background="@color/lightgrey"
android:orientation="vertical"
android:padding="@dimen/padding_5dp">
<TextView
android:id="@+id/textView10"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_10"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView9"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_9"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_8"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView7"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_7"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView6"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_6"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_5"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_4"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_3"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_2"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_1"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textView0"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/_0"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="14sp" />
<TextView
android:id="@+id/textViewDate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/date"
android:textAlignment="textEnd"
android:textColor="@color/black"
android:textSize="18sp" />
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerViewDrillGraph"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="bottom"
android:layout_margin="@dimen/margin_5dp"
android:background="@color/white"
android:orientation="horizontal"
android:padding="@dimen/padding_5dp"
android:scrollbars="horizontal" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</android.support.constraint.ConstraintLayout>

商品代码： drill_graph_single_column.xml ：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="bottom"
android:background="@color/lightgrey"
android:gravity="bottom"
android:orientation="vertical"
android:padding="@dimen/padding_1dp"
android:weightSum="110">
<Button
android:id="@+id/btnSkill"
style="@style/btnStyleScoreGrey"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="50"
android:text="@string/skill"
android:textAllCaps="false"
android:textSize="16sp" />
<Button
android:id="@+id/btnDate"
style="@style/btnStyleDrillGraphGrey"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_marginTop="@dimen/margin_1dp"
android:layout_weight="10"
android:text="@string/date"
android:textAllCaps="false"
android:textSize="12sp" />
</LinearLayout>

我的回收器视图适配器代码：

package org.poolshot.poolshotacademy;
import android.content.Context;
import android.content.SharedPreferences;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import java.util.List;
public class My_DrillGraph_RecyclerView_Adapter extends RecyclerView.Adapter<My_DrillGraph_RecyclerView_Adapter.MyHolder> {
SharedPreferences defaultPreferencesSettings;
private Context myRCAContext;
private List<String> myDrillGraphDates;
private List<Integer> myDrillGraphSkill;
// constructor
public My_DrillGraph_RecyclerView_Adapter(Context applicationContext, List<String> mDrillGraphDates, List<Integer> mDrillGraphSkill) {
this.myRCAContext = applicationContext;
this.myDrillGraphDates = mDrillGraphDates;
this.myDrillGraphSkill = mDrillGraphSkill;
}
@NonNull
@Override
public MyHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int position) {
View layout = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.drill_graph_single_column,null);
MyHolder myHolder = new MyHolder(layout);
return myHolder;
}
@Override
public void onBindViewHolder(@NonNull final MyHolder viewHolder, final int position) {
String skill = myDrillGraphSkill.get(position).toString();
// set color for buttons
viewHolder.btnDate.setBackground(myRCAContext.getResources().getDrawable(R.drawable.custom_btn_grey));
viewHolder.btnSkill.setTextColor(myRCAContext.getResources().getColor(R.color.white));
// set text for buttons
viewHolder.btnDate.setText(myDrillGraphDates.get(position));
viewHolder.btnSkill.setText(skill);
}
@Override
public int getItemCount() {
return myDrillGraphDates.size();
}
public static class MyHolder extends RecyclerView.ViewHolder {
Button btnDate;
Button btnSkill;
public MyHolder(View itemView) {
super(itemView);
btnDate = itemView.findViewById(R.id.btnDate);
btnSkill = itemView.findViewById(R.id.btnSkill);
}
}
}

Answer 1

这是我的解决方案： 我将类 MyHolder 的代码更改为：

public static class MyHolder extends RecyclerView.ViewHolder {
Button btnDate;
Button btnSkill;
public MyHolder(View itemView) {
super(itemView);
btnDate = itemView.findViewById(R.id.btnDate);
btnSkill = itemView.findViewById(R.id.btnSkill);
LinearLayout.LayoutParams layoutParams =
new LinearLayout.LayoutParams(android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.MATCH_PARENT);
layoutParams.gravity = Gravity.BOTTOM;
itemView.setLayoutParams(layoutParams);
}
}