我有应用程序，我想实现Dineout应用程序的滚动。基本上Dineout在垂直回收器视图中有一个cardview，当用户滑动时它会滚动到下一张卡，甚至在2秒后以无限方式自动发生。
我能够使用一些随机数据制作垂直回收者视图，但是当用户滑动时我无法进入第二张卡片，而且我甚至想要添加自动功能。
我附上了源代码。
MainActivity.java
package com.example.root.recyclertutorial;
import android.os.Handler;
import android.os.Looper;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearSmoothScroller;
import android.support.v7.widget.RecyclerView;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private RecyclerView mRecyclerView;
private SubActivityAdapter mAdapter;
final int duration = 50;
final int pixelsToMove = 200;
private final Handler mHandler = new Handler(Looper.getMainLooper());
private RecyclerView.LayoutManager mLayoutManager;
private final Runnable SCROLLING_RUNNABLE = new Runnable() {
@Override
public void run() {
mRecyclerView.smoothScrollBy(pixelsToMove, 0);
mHandler.postDelayed(this, duration);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRecyclerView = (RecyclerView) findViewById(R.id.hrlist_recycler_view);
final LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
mRecyclerView.setLayoutManager(layoutManager);
mRecyclerView.setHasFixedSize(true);
mAdapter = new SubActivityAdapter(this, getData());
mRecyclerView.setAdapter(mAdapter);
// RecyclerView.SmoothScroller smoothScroller = new LinearSmoothScroller(this) {
// @Override protected int getVerticalSnapPreference() {
// return LinearSmoothScroller.SNAP_TO_START;
// }
// };
// smoothScroller.setTargetPosition(1);
// layoutManager.startSmoothScroll(smoothScroller);
// mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
// @Override
// public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
// super.onScrolled(recyclerView, 200, dy);
// int lastItem = layoutManager.findLastCompletelyVisibleItemPosition();
// if(lastItem == layoutManager
// .getItemCount()-1){
// mHandler.removeCallbacks(SCROLLING_RUNNABLE);
// Handler postHandler = new Handler();
// postHandler.postDelayed(new Runnable() {
// @Override
// public void run() {
// mRecyclerView.setAdapter(null);
// mRecyclerView.setAdapter(mAdapter);
// mHandler.postDelayed(SCROLLING_RUNNABLE, 50000);
// }
// }, 50000);
// }
// }
// });
// mHandler.postDelayed(SCROLLING_RUNNABLE, 2000);
//Layout manager for the Recycler View
// mLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
// mRecyclerView.setLayoutManager(mLayoutManager);
}
public static List<SubActivityData> getData() {
List<SubActivityData> subActivityData = new ArrayList<>();
String[] cardTitle = {
"Card 1",
"Card 2",
"Card 3",
"Card 4",
"Card 5",
"Card 6",
};
for (int i = 0; i < cardTitle.length; i++) {
SubActivityData current = new SubActivityData();
current.cardTitle = cardTitle[i];
subActivityData.add(current);
}
return subActivityData;
}
}
SubActivityAdapter.java
package com.example.root.recyclertutorial;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.Collections;
import java.util.List;
/**
* Created by Abhishek on 20-03-2015.
*/
public class SubActivityAdapter extends RecyclerView.Adapter<SubActivityAdapter.SubActivityViewHolder> {
private final LayoutInflater inflater;
List<SubActivityData> subActivityData = Collections.EMPTY_LIST;
public SubActivityAdapter(Context context, List<SubActivityData> subActivityData) {
inflater = LayoutInflater.from(context);
this.subActivityData = subActivityData;
}
@Override
public SubActivityViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.custom_card, parent, false);
SubActivityViewHolder subActivityViewHolder = new SubActivityViewHolder(view);
return subActivityViewHolder;
}
@Override
public void onBindViewHolder(SubActivityViewHolder holder, int position) {
SubActivityData currentCard = subActivityData.get(position);
holder.title.setText(currentCard.cardTitle);
}
@Override
public int getItemCount() {
return subActivityData.size();
}
class SubActivityViewHolder extends RecyclerView.ViewHolder {
TextView title;
public SubActivityViewHolder(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.card_text);
}
}
}
SubActivityData.java
package com.example.root.recyclertutorial;
/**
* Created by root on 4/4/18.
*/
public class SubActivityData {
public String cardTitle;
void SubActivityData(){
this.cardTitle = cardTitle;
}
}
CustomCard.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="8dp"
android:tag="contains Cards main Container">
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="10dp"
app:cardBackgroundColor="#B6B6B6">
<TextView
android:id="@+id/card_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:padding="20dp"
android:text="Card 1"
android:textSize="30sp" />
</android.support.v7.widget.CardView>
</LinearLayout>
activity_main.xml中
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Horizontal Card List"
android:textSize="16sp"
android:padding="3dp"
android:background="#CCCCCC" />
<android.support.v7.widget.RecyclerView
android:id="@+id/hrlist_recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="horizontal" />
</LinearLayout>
如果有人能回答，那将是非常有帮助的。基本要求是我想在用户滚动时滚动到下一张卡片。 2秒后应该有一个自动滚动到下一张卡加上无限循环。