0

我有一個產品列表,裏面有一個帶有CardViews的回收視圖。每個CardView都有該產品的圖像。如何在RecycleView中正確使用Picasso庫

的問題是,我得到一個

"java.lang.OutOfMemoryError"

。 我認爲是因爲我在我的RecycleView適配器中使用了畢加索。

下面是代碼:

import android.content.Context; 
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.squareup.picasso.Picasso; 

import java.util.List; 

import uk.co.something.R; 
import uk.co.something.Product; 


public class ProductListAdapter extends RecyclerView.Adapter<ProductListAdapter.ViewHolder> { 
    private List<Product> products; 
    private int rowLayout; 
    private Context appContext; 

    public ProductListAdapter(List<Product> products, int rowLayout, Context appContext) { 
     this.products = products; 
     this.rowLayout = rowLayout; 
     this.appContext = appContext; 
    } 

    @Override 
    public ProductListAdapter.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) { 
     View v = LayoutInflater.from(viewGroup.getContext()).inflate(rowLayout, viewGroup, false); 
     return new ProductListAdapter.ViewHolder(v); 
    } 

    @Override 
    public void onBindViewHolder(ProductListAdapter.ViewHolder viewHolder, int i) { 
     Product product = products.get(i); 
     Picasso.with(appContext).load(product.getUrl().getImage()).into(viewHolder.image); 
     Picasso.with(appContext).load(product.getRetailer().getIcon()).into(viewHolder.logo); 
     String productPrice = (product.getPrice().getDiscounted() == null || Double.parseDouble(product.getPrice().getDiscounted()) <= 0) ? product.getPrice().getCost() : product.getPrice().getDiscounted(); 
     viewHolder.price.setText("\u00a3" + productPrice); 

    } 

    @Override 
    public int getItemCount() { 
     return products == null ? 0 : products.size(); 
    } 

    static class ViewHolder extends RecyclerView.ViewHolder { 
     public ImageView image; 
     public ImageView logo; 
     public TextView price; 

     ViewHolder(View itemView) { 
      super(itemView); 
      image = (ImageView) itemView.findViewById(R.id.product_list_cardview_image); 
      logo = (ImageView) itemView.findViewById(R.id.product_list_cardview_logo); 
      price = (TextView) itemView.findViewById(R.id.product_list_cardview_price); 
     } 

    } 
} 

我得到的錯誤是這個:

E/AndroidRuntime: FATAL EXCEPTION: main Process: uk.co.lexel.dimble, PID: 5503 java.lang.OutOfMemoryError: Failed to allocate a 11760012 byte allocation with 4269112 free bytes and 4MB until OOM at dalvik.system.VMRuntime.newNonMovableArray(Native Method) at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:609) at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444) at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1080) at android.content.res.Resources.loadDrawableForCookie(Resources.java:2635) at android.content.res.Resources.loadDrawable(Resources.java:2540) at android.content.res.Resources.getDrawable(Resources.java:806) at android.content.Context.getDrawable(Context.java:458) at android.support.v4.content.ContextCompatApi21.getDrawable(ContextCompatApi21.java:30) at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:372) at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:202) at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:190) at android.support.v7.content.res.AppCompatResources.getDrawable(AppCompatResources.java:100) at android.support.v7.widget.AppCompatImageHelper.loadFromAttributes(AppCompatImageHelper.java:54) at android.support.v7.widget.AppCompatImageView.(AppCompatImageView.java:66) at android.support.v7.widget.AppCompatImageView.(AppCompatImageView.java:56) at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:106) at android.support.v7.app.AppCompatDelegateImplV9.createView(AppCompatDelegateImplV9.java:1021) at android.support.v7.app.AppCompatDelegateImplV9.onCreateView(AppCompatDelegateImplV9.java:1080) at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:47) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:746) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) at android.view.LayoutInflater.rInflate(LayoutInflater.java:835) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) at android.view.LayoutInflater.inflate(LayoutInflater.java:515) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at uk.co.something.controllers.activities.ProductListAdapter.onCreateViewHolder(ProductListAdapter.java:35) at uk.co.something.controllers.activities.ProductListAdapter.onCreateViewHolder(ProductListAdapter.java:22) at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6290) at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5478) at android.support.v7.widget.GapWorker.prefetchPositionWithDeadline(GapWorker.java:270) at android.support.v7.widget.GapWorker.flushTaskWithDeadline(GapWorker.java:324) at android.support.v7.widget.GapWorker.flushTasksWithDeadline(GapWorker.java:337) at android.support.v7.widget.GapWorker.prefetch(GapWorker.java:344) at android.support.v7.widget.GapWorker.run(GapWorker.java:370) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

在日誌中說,問題就在這裏:

View v = LayoutInflater.from(viewGroup.getContext()).inflate(rowLayout, viewGroup, false); 

有人能幫我嗎?

+0

我認爲你在佈局xml中有一些大的圖像。請展示它。 –

回答

1

你得到java.lang.OutOfMemoryError錯誤,因爲你的應用超過了提供給它的總內存。

在你的應用程序,這可能是因爲你在你的recyclerView顯示圖像的尺寸大,顯示

對於正常縮放你的圖片才他們沒有縮放到ImageView的大小使用畢加索你可以使用.fit()方法在畢加索

Picasso 
.with(context) 
.load(UsageExampleListViewAdapter.eatFoodyImages[0]) 
.fit() 
// call .centerInside() or .centerCrop() to avoid a stretched image 
.into(imageViewFit); 

或替代畢加索,你可以用滑翔

compile 'com.github.bumptech.glide:glide:3.7.0' 

Glide.with(context) 
    .load(image) 
    .asBitmap()‌​.transform(new CenterCrop(context)) 
    .diskCacheStrategy(DiskCacheStrategy.NONE) 
    .skipMemoryCache(true) 
    .int‌​o(your_imageview) 

您可以通過啓用大型堆在你的清單

android:largeHeap="true" 

更多關於圖片縮放和負荷也會增加分配給您的應用程序的默認內存您可以點擊鏈接查看圖片:https://developer.android.com/training/displaying-bitmaps/load-bitmap.html

-1

請將您的Recyclerview行設計代碼,可能會因爲圖像大小而出現問題。

+0

這不是一個答案。你不應該留下評論作爲答案。 –

0

防止java.lang.OutOfMemoryError簡單的使用滑翔圖像的平滑scrolling.Use裝載機以下鏈接 Glide Tutorial

0

在項目中,我使用幾乎所有的圖書館recylerview載入圖像,但所有的圖書館有一些問題。但通用圖像加載程序是在回收站視圖中加載圖像時最好的。