我正在尝试在我的片段tabbedView中实现recylerView。我的应用程序有一个功能，我需要上传照片并将其发布在recyclerView上。但是，当我尝试上传图片时，应用程序崩溃了。我正在使用firebase-ui。它在android jellybean中运行良好。但是，当我试图在棒棒糖上运行应用程序时，应用程序崩溃了。我安装了必要的SDK平台。这是第一个标签式视图活动的代码：
import android.content.Context;
import android.support.v4.app.Fragment;
import android.os.Bundle;
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 com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.squareup.picasso.Picasso;
import static android.R.id.list;
public class AllPosts extends Fragment{
private RecyclerView postList;
private DatabaseReference mDatabase;
private LinearLayoutManager layoutManager;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
View rootView = inflater.inflate(R.layout.allposts, container, false);
mDatabase= FirebaseDatabase.getInstance().getReference().child("Posts");
//EXPERIMENT WITH LISTVIEW STARTS
postList=(RecyclerView) rootView.findViewById(R.id.postList);
postList.setHasFixedSize(true);
layoutManager=new LinearLayoutManager(getActivity());
postList.setLayoutManager(layoutManager);
//EXPERIMENT WITH LISTVIEW ENDS
return rootView;
}
@Override
public void onStart() {
super.onStart();
FirebaseRecyclerAdapter<Posts,PostViewHolder> firebaseRecyclerAdapter=new FirebaseRecyclerAdapter<Posts, PostViewHolder>(
Posts.class,
R.layout.single_post,
PostViewHolder.class,
mDatabase
) {
@Override
protected void populateViewHolder(PostViewHolder viewHolder, Posts model, int position) {
viewHolder.setTitle(model.getTitle());
viewHolder.setDescription(model.getDescription());
viewHolder.setImage(getContext(),model.getImage());
}
};
postList.setAdapter(firebaseRecyclerAdapter);
}
public static class PostViewHolder extends RecyclerView.ViewHolder{
View mView;
public PostViewHolder(View itemView) {
super(itemView);
mView=itemView;
}
//Setting the title to the AllActivity
public void setTitle(String title){
TextView postTitle=(TextView) mView.findViewById(R.id.allPostTitle);
postTitle.setText(title);
}
public void setDescription(String description){
TextView postDescription=(TextView) mView.findViewById(R.id.allPostDescription);
postDescription.setText(description);
}
public void setImage(Context context,String image) {
ImageView postImage=(ImageView) mView.findViewById(R.id.allPostImage);
Picasso.with(context).load(image).into(postImage);
}
}
}
//继承我的XML代码：
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/postList"
></android.support.v7.widget.RecyclerView>
//单个列表项视图的代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="250dp"
android:id="@+id/allPostImage"
android:src="@color/cardview_dark_background"
android:scaleType="centerCrop" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/allPostTitle"
android:padding="10dp"
android:text="post Title"
android:textStyle="normal|bold"
android:textAllCaps="true"
android:textSize="24sp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/allPostDescription"
android:padding="10dp"
android:text="post Description"
android:textSize="16sp"
android:textAllCaps="true"
android:textAlignment="viewStart" />
</LinearLayout>
//我在棒棒糖（api level 21）上运行它时显示的错误
java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid item position 0(offset:3).state:3
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5202)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5158)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2061)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1445)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1408)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:580)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep1(RecyclerView.java:3330)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3186)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3632)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1692)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1468)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1799)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:131)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1364)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:846)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:15685)
at android.view.ViewGroup.layout(ViewGroup.java:5039)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2116)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1873)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1091)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5926)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:775)
at android.view.Choreographer.doCallbacks(Choreographer.java:588)
at android.view.Choreographer.doFrame(Choreographer.java:558)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:761)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)