Java 如何向recyclerview添加多个阵列
我知道这里需要做些改变，但我不知道怎么做。我读过一些关于DataSet类的文章，但不知道如何实现它。谁能告诉我如何将多个阵列添加到recyclerview中 更新代码后的LogcatJava 如何向recyclerview添加多个阵列,java,android,arrays,Java,Android,Arrays,我知道这里需要做些改变，但我不知道怎么做。我读过一些关于DataSet类的文章，但不知道如何实现它。谁能告诉我如何将多个阵列添加到recyclerview中 更新代码后的Logcat package com.example.sander.app; import android.app.Fragment; import android.media.Image; import android.os.Bundle; import android.support.v7.widget.CardV
package com.example.sander.app;
import android.app.Fragment;
import android.media.Image;
import android.os.Bundle;
import android.support.v7.widget.CardView;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
/**
* Created by Sander on 6-4-2017.
*/
public class RecycleAdapter extends RecyclerView.Adapter<RecycleAdapter.MyViewHolder> {
ArrayList<String> ArrayDataset;
ArrayList<Integer> ArrayDataset2;
public static class MyViewHolder extends RecyclerView.ViewHolder{
public CardView mCardView;
public TextView mTextView;
public TextView mTextView2;
public ImageView mImageView;
public MyViewHolder(View v){
super(v);
mCardView = (CardView) v.findViewById(R.id.card_view);
mTextView = (TextView) v.findViewById(R.id.tv_blah);
mTextView2 = (TextView) v.findViewById(R.id.tv_blah2);
mImageView = (ImageView) v.findViewById(R.id.imageView1);
}
}
public RecycleAdapter(ArrayList<String> names, ArrayList<Integer> cPoints){
ArrayDataset = names;
ArrayDataset2= cPoints;
}
@Override
public RecycleAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_card_view, parent, false);
MyViewHolder vh = new MyViewHolder(v);
return vh;
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position){
holder.mTextView.setText(ArrayDataset.get(position));
holder.mTextView2.setText(ArrayDataset2.get(position));
holder.mImageView.setImageResource(R.drawable.ic_local_parking_black_24dp);
}
@Override
public int getItemCount() { return ArrayDataset.size(); }
}
更新RecycleAdapter，以List cPoints作为参数，只需将cPoints作为参数传递给RecycleAdapter，并更新代码，如下所示
04-07 18:47:59.341 5581-5581/com.example.sander.app E/RecyclerView: No adapter attached; skipping layout
04-07 18:47:59.344 5581-5712/com.example.sander.app D/NetworkSecurityConfig: No Network Security Config specified, using platform default
04-07 18:47:59.493 5581-5581/com.example.sander.app W/ResourceType: No package identifier when getting value for resource number 0x00000000
04-07 18:47:59.493 5581-5581/com.example.sander.app D/AndroidRuntime: Shutting down VM
04-07 18:47:59.494 5581-5581/com.example.sander.app E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.sander.app, PID: 5581
android.content.res.Resources$NotFoundException: String resource ID #0x0
at android.content.res.Resources.getText(Resources.java:335)
at android.widget.TextView.setText(TextView.java:4555)
at com.example.sander.app.RecycleAdapter.onBindViewHolder(RecycleAdapter.java:56)
at com.example.sander.app.RecycleAdapter.onBindViewHolder(RecycleAdapter.java:21)
at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6356)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6389)
at android.support.v7.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:5335)
at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5598)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5440)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5436)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2224)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1551)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1511)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:595)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3583)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3312)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3844)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1079)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.support.constraint.ConstraintLayout.onLayout(ConstraintLayout.java:1197)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:131)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1391)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:870)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1193)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
04-07 18:47:59.494 5581-5581/com.example.sander.app E/AndroidRuntime: at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:726)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2346)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2068)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6337)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874)
at android.view.Choreographer.doCallbacks(Choreographer.java:686)
at android.view.Choreographer.doFrame(Choreographer.java:621)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
列表点；
公共循环apter（数组列表名称、列表点）{
ArrayDataset=名称；
点=点
}
List<Integer> point;
public RecycleAdapter(ArrayList<String> names,List<Interger> cPoint){
ArrayDataset = names;
point=cPoint
}
理想情况下，您可以使用Gson直接从JSON创建Java对象 如果我这样做，我的应用程序就会崩溃。请发布stacktraceCheck我添加的第一篇帖子logcat@Sanderbakker您使用的是带有数字的
setText（）List<Integer> point;
public RecycleAdapter(ArrayList<String> names,List<Interger> cPoint){
ArrayDataset = names;
point=cPoint
}
ArrayList<String> names = new ArrayList<>();
ArrayList<Integer> cPoints = new ArrayList<>();
static class Point {
String name;
int points;
}
List<Point> points = new ArrayList<>();
private List<Point> mPoints;
public RecycleAdapter(List<Point> points){
mPoints = points;
}