Getting error inflating CardView despite of using last version

问题:

I have a problem which is wasting my time. I was working on my project very well until yesterday. When I started to work last morning I have faced this problem ;

"Binary XML file line #2: Error inflating class android.support.v7.widget.CardView"

I have suddennly googled and I have seen that some other people faced either. But answers about these problem is not my solution. It hasnt fixed my problem. Pls save my day :)

here is my gradle ;

here is my logcat;

 Process: com.orderfood.teknomerkez.orderfood, PID: 14852 android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class android.support.v7.widget.CardView Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.CardView Caused by: java.lang.reflect.InvocationTargetException     at java.lang.reflect.Constructor.newInstance0(Native Method)     at java.lang.reflect.Constructor.newInstance(Constructor.java:334)     at android.view.LayoutInflater.createView(LayoutInflater.java:647)     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790)     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)     at android.view.LayoutInflater.inflate(LayoutInflater.java:492)     at android.view.LayoutInflater.inflate(LayoutInflater.java:423)     at com.orderfood.teknomerkez.orderfood.Home$5.onCreateViewHolder(Home.java:277)     at com.orderfood.teknomerkez.orderfood.Home$5.onCreateViewHolder(Home.java:272) 

Here is my xml file;

 <?xml version="1.0" encoding="utf-8"?> <android.support.v7.widget.CardView     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:layout_width="match_parent"     android:layout_height="200dp"     app:cardElevation="4dp">      <RelativeLayout         android:layout_width="match_parent"         android:layout_height="match_parent">          <com.flaviofaria.kenburnsview.KenBurnsView             android:layout_width="match_parent"             android:layout_height="match_parent"             android:src="@drawable/backround_main_page"             android:id="@+id/menu_image"             android:scaleType="centerCrop" />          <TextView             android:fontFamily="@font/fondamento"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:id="@+id/menu_name"             android:text="Menu Name"             android:textColor="@color/white"             android:background="#4f0e0d0e"             android:textSize="20sp"             android:gravity="center"             android:layout_alignParentBottom="true" />     </RelativeLayout> </android.support.v7.widget.CardView> 

here is my viewHolder;

public class MenuViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{  public TextView txtMenuName; public KenBurnsView menu_image; private ItemClickListener itemClickListener;  public MenuViewHolder(View itemView) {     super(itemView);     txtMenuName = itemView.findViewById(R.id.menu_name);     menu_image = itemView.findViewById(R.id.menu_image);     itemView.setOnClickListener(this); }  public void setItemClickListener(ItemClickListener itemClickListener) {     this.itemClickListener = itemClickListener; }  @Override public void onClick(View view) { itemClickListener.onClick(view,getAdapterPosition(),false); } 

}

here is my adapter;

Query query = FirebaseDatabase.getInstance()             .getReference().child("Category");     FirebaseRecyclerOptions<Category> options = new FirebaseRecyclerOptions.Builder<Category>().setQuery(query, Category.class).build();     adapter = new FirebaseRecyclerAdapter<Category, MenuViewHolder>(options) {         @NonNull         @Override         public MenuViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {             View view = LayoutInflater.from(parent.getContext())                     .inflate(R.layout.menu_item, parent, false);             return new MenuViewHolder(view);         }          @Override         protected void onBindViewHolder(@NonNull MenuViewHolder viewHolder, int position, @NonNull Category model) {             viewHolder.txtMenuName.setText(model.getName());             Picasso p = Picasso.get();             p.load(model.image).into(viewHolder.menu_image);              final Category clickItem = model;             viewHolder.setItemClickListener(new ItemClickListener() {                 @Override                 public void onClick(View view, int position, boolean isLongClick) {                     Toast.makeText(Home.this, "" + clickItem.getName(), Toast.LENGTH_SHORT).show();                     Intent food_intent = new Intent(Home.this, FoodList.class);                     //Because categoryId is key , so we just get key of this item                     food_intent.putExtra(getCategoryId, adapter.getRef(position).getKey());                     food_intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);                     startActivity(food_intent);                 }             });         }     };   adapter.startListening(); 

回答1:

Remove that starting space in your xml.(Just before <?xml version="1.0" encoding="utf-8"?>) Reason: Xml declaration should precede all document content.

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