我正在创建一个应用,其中一个活动在卡片视图中显示一些博客帖子数据。一切正常,直到我只有9个博客帖子显示,但当第十个帖子添加,然后卡片视图搞砸像第一个cardview项目和最后一个cardview项目中的10个帖子显示。 以下是填写Recyclerview Cardview的代码
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_transaction);
LinearLayoutManager lm = new LinearLayoutManager(this);
lm.setReverseLayout(true);
lm.setStackFromEnd(true);
recyclerView = findViewById(R.id.blog_list);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(lm);
mref = FirebaseDatabase.getInstance().getReference().child("IHIAUPDATES");
}
public static class bloglistviewholder extends RecyclerView.ViewHolder {
static View mview;
public bloglistviewholder(View itemView) {
super(itemView);
mview = itemView;
}
public static void setTitle(String title){
TextView post_title = mview.findViewById(R.id.blog_title);
post_title.setText(title);
}
public static void setPosteon(String postedon){
TextView post_title = mview.findViewById(R.id.blog_postedon);
post_title.setText(postedon);
}
public static void setPostby(String postedby){
TextView post_title = mview.findViewById(R.id.blog_postedby);
post_title.setText(postedby);
}
public static void setPost(String post){
TextView post_content = mview.findViewById(R.id.blog_post);
post_content.setText(post);
}
public static void setImageurl(Context ctx, String imageurl){
ImageView post_image = mview.findViewById(R.id.blog_pic);
Picasso.with(ctx).load(imageurl).into(post_image)
;
}
}
@Override
protected void onStart() {
super.onStart();
FirebaseRecyclerAdapter<blog_list,bloglistviewholder> rAdapter = new FirebaseRecyclerAdapter<blog_list, bloglistviewholder>(
blog_list.class,
R.layout.blog_row,
bloglistviewholder.class,
mref.orderByKey()
) {
@Override
protected void populateViewHolder(bloglistviewholder viewHolder, blog_list model, int position) {
bloglistviewholder.setTitle(model.getTitle());
bloglistviewholder.setPost(model.getPost());
bloglistviewholder.setPostby(model.getPostedby());
bloglistviewholder.setPosteon(model.getPostedon());
bloglistviewholder.setImageurl(getApplicationContext(),model.getImageurl());
}
};
recyclerView.setAdapter(rAdapter);
}
Xml blog_row
<?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.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="8dp">
<ImageView
android:id="@+id/blog_pic"
android:layout_width="120dp"
android:layout_height="90dp"
android:padding="4dp" />
<TextView
android:id="@+id/blog_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_toRightOf="@id/blog_pic"
android:text="Apple MacBook Air Core i5 5th Gen - (8 GB/128 GB SSD/Mac OS Sierra)"
android:textAppearance="@style/Base.TextAppearance.AppCompat.Small"
android:textColor="#000000" />
<TextView
android:id="@+id/blog_postedon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/blog_title"
android:layout_marginLeft="5dp"
android:layout_marginTop="5dp"
android:layout_toRightOf="@id/blog_pic"
android:text="13.3 Inch, 256 GB"
android:textAppearance="@style/Base.TextAppearance.AppCompat.Small" />
<TextView
android:id="@+id/blog_postedby"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/blog_postedon"
android:layout_marginLeft="5dp"
android:layout_marginTop="5dp"
android:layout_toRightOf="@id/blog_pic"
android:background="@color/colorPrimary"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:text="4.7"
android:textAppearance="@style/Base.TextAppearance.AppCompat.Small.Inverse"
android:textStyle="bold" />
<TextView
android:id="@+id/blog_post"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/blog_postedby"
android:layout_marginLeft="5dp"
android:layout_marginTop="5dp"
android:layout_toRightOf="@id/blog_pic"
android:text="INR 56990"
android:textAppearance="@style/TextAppearance.AppCompat" />
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
可能出现什么问题? 我做错了什么?
答案 0 :(得分:0)
可能出错?
您将数据插入数据库时出现逻辑问题,导致第一项显示为第10项。但是,由于您没有显示代码,因此无法猜测。
您在调试代码方面做了什么?
我做错了什么?
嗯,你有一个错误......所以......是的? :P