جستجو در تالارهای گفتگو
در حال نمایش نتایج برای برچسب های 'recyclerview'.
1 نتیجه پیدا شد
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سلام من کدها رو نوشتم ولی با این خطا مواجه میشوم. ایراد کدهای من چی میتونه باشه E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.shop, PID: 3607 android.view.InflateException: Binary XML file line #24: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:761) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727) at android.view.LayoutInflater.rInflate(LayoutInflater.java:858) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821) at android.view.LayoutInflater.rInflate(LayoutInflater.java:861) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821) at android.view.LayoutInflater.inflate(LayoutInflater.java:518) at android.view.LayoutInflater.inflate(LayoutInflater.java:426) at com.example.shop.Adapter.ProductAdapter.onCreateViewHolder(ProductAdapter.java:35) at com.example.shop.Adapter.ProductAdapter.onCreateViewHolder(ProductAdapter.java:19) at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6794) at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5975) at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858) at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854) at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2230) at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1557) at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1517) at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:612) at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3924) at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3641) at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4194) 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.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) 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) Application terminated. من در productActivity اینارو نوشتم: package com.example.shop.Adapter; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import androidx.annotation.NonNull; import androidx.recyclerview.widget.RecyclerView; import com.example.shop.Models.Products; import com.example.shop.R; import java.util.ArrayList; import java.util.List; public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.ProductViewHolder>{ private List<Products> products=new ArrayList<Products> ( ); private Context context; public ProductAdapter(List<Products> products, Context context) { this.products = products; this.context = context; } @NonNull @Override public ProductViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { View view=LayoutInflater.from ( parent.getContext () ).inflate ( R.layout.products_list_row,parent,false);//inflater.inflate (R.layout.products_list_row,parent); return new ProductViewHolder(view); } @Override public void onBindViewHolder(@NonNull ProductViewHolder holder, int position) { Products oP=products.get ( position ); holder.txt_priceProduct.setText ( oP.getPriceProduct () ); holder.txt_nameProduct.setText (oP.getNameProduct () ); holder.img_imgProduct.setImageDrawable (oP.getImg_product () ); } @Override public int getItemCount() { return products.size (); } public class ProductViewHolder extends RecyclerView.ViewHolder { public ImageView img_imgProduct; public TextView txt_nameProduct; public TextView txt_priceProduct; public ProductViewHolder(@NonNull View itemView) { super ( itemView ); img_imgProduct=itemView.findViewById ( R.id.imgProduct ); txt_nameProduct=itemView.findViewById ( R.id.nameProduct ); txt_priceProduct=itemView.findViewById ( R.id.priceProduct ); } } } و در productModel این کدهارو: package com.example.shop.Models; import android.graphics.drawable.Drawable; public class Products { private Drawable img_product; private String nameProduct; private String priceProduct; public Products(Drawable img_product, String nameProduct, String priceProduct) { this.img_product = img_product; this.nameProduct = nameProduct; this.priceProduct = priceProduct; } public Drawable getImg_product() { return img_product; } public void setImg_product(Drawable img_product) { this.img_product = img_product; } public String getNameProduct() { return nameProduct; } public void setNameProduct(String nameProduct) { this.nameProduct = nameProduct; } public String getPriceProduct() { return priceProduct; } public void setPriceProduct(String priceProduct) { this.priceProduct = priceProduct; } } و در productAdapter این کدها رو: package com.example.shop.Adapter; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import androidx.annotation.NonNull; import androidx.recyclerview.widget.RecyclerView; import com.example.shop.Models.Products; import com.example.shop.R; import java.util.ArrayList; import java.util.List; public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.ProductViewHolder>{ private List<Products> products=new ArrayList<Products> ( ); private Context context; public ProductAdapter(List<Products> products, Context context) { this.products = products; this.context = context; } @NonNull @Override public ProductViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { View view=LayoutInflater.from ( parent.getContext () ).inflate ( R.layout.products_list_row,parent,false);//inflater.inflate (R.layout.products_list_row,parent); return new ProductViewHolder(view); } @Override public void onBindViewHolder(@NonNull ProductViewHolder holder, int position) { Products oP=products.get ( position ); holder.txt_priceProduct.setText ( oP.getPriceProduct () ); holder.txt_nameProduct.setText (oP.getNameProduct () ); holder.img_imgProduct.setImageDrawable (oP.getImg_product () ); } @Override public int getItemCount() { return products.size (); } public class ProductViewHolder extends RecyclerView.ViewHolder { public ImageView img_imgProduct; public TextView txt_nameProduct; public TextView txt_priceProduct; public ProductViewHolder(@NonNull View itemView) { super ( itemView ); img_imgProduct=itemView.findViewById ( R.id.imgProduct ); txt_nameProduct=itemView.findViewById ( R.id.nameProduct ); txt_priceProduct=itemView.findViewById ( R.id.priceProduct ); } } } یک روزه که کلا من روی پیدا کردن خطا گذاشتم اما پیدا نکردم. لطفا کمکم کنید