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使用帶有片段適配器的 Glide 庫

[英]Using Glide Library with a Fragment adapter

 原文  2020-04-28 14:07:14  9   1    java/ android/ android-glide

問題描述

我有一個適配器 class 用於用卡片視圖填充 recyclerview 項目。 這個 RecyclerView 位於一個片段下。 在這個適配器內部，我試圖將圖像綁定到卡片視圖布局下的 imageview。 我試圖通過適配器 class 中的以下方法來實現這一點：

public void onBindViewHolder(@NonNull ProductViewHolder holder, int position) {
    Product product = myProducts.get(position);
    holder.productTitle.setText(product.getProductName());
    holder.productDesc.setText(product.getDescription());
    Uri uri = Uri.parse(product.getImageUri());
    Glide.with(/*WHAT SHOULD I PASS HERE??*/).load(new File(uri.getPath())).into(holder.productImage);
}

每個產品實例都有一個包含圖像路徑的字段，我想采用該路徑，找到相應的圖像並將其繪制在 cardview 項目中。 但我不知道我應該將什么作為參數傳遞給Glide.with() 。 在此先感謝，請指出任何似乎有問題的地方。 我是 android 編程的新手。

編輯：以下是支架 class。

class ProductViewHolder extends RecyclerView.ViewHolder {

    private ImageView productImage;
    private TextView productTitle;
    private TextView productDesc;

    public ProductViewHolder(View itemView) {
        super(itemView);
        productImage = itemView.findViewById(R.id.product_image);
        productTitle = itemView.findViewById(R.id.product_title);
        productDesc = itemView.findViewById(R.id.product_desc);
    }

}

我試過這個

Glide.with(holder.itemView).load(new File(uri.getPath())).into(holder.productImage);

但它給出了這樣的錯誤：

class com.bumptech.glide.load.engine.GlideException: Failed to load resource
There were 3 causes:
java.io.IOException(File unsuitable for memory mapping)
java.io.FileNotFoundException(/document/msf:24: open failed: ENOENT (No such file or directory))
java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))

這是我的適配器 class：

 public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.ProductViewHolder> {

    private final LayoutInflater myInflater;
    private List<Product> myProducts = new ArrayList<>();
    private Context context;

    public ProductAdapter(Context context) {
        this.context = context;
        myInflater = LayoutInflater.from(context);
    }

    @NonNull
    @Override
    public ProductViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View itemView = myInflater.inflate(R.layout.card_view_product, parent, false);
        return new ProductViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(@NonNull ProductViewHolder holder, int position) {
        Product product = myProducts.get(position);
        holder.productTitle.setText(product.getProductName());
        holder.productDesc.setText(product.getDescription());
        Uri uri = Uri.parse(product.getImageUri());
        Glide.with(context).load(new File(uri.getPath())).into(holder.productImage);
    }

    @Override
    public int getItemCount() {
        return myProducts.size();
    }

    public void setProducts(List<Product> products) {
        myProducts = products;
        notifyDataSetChanged();
    }

    class ProductViewHolder extends RecyclerView.ViewHolder {

        private ImageView productImage;
        private TextView productTitle;
        private TextView productDesc;

        public ProductViewHolder(View itemView) {
            super(itemView);
            productImage = itemView.findViewById(R.id.product_image);
            productTitle = itemView.findViewById(R.id.product_title);
            productDesc = itemView.findViewById(R.id.product_desc);
        }

    }
}

和錯誤

    W/Glide: Load failed for /document/msf:25 with size [384x384]
    class com.bumptech.glide.load.engine.GlideException: Failed to load resource
    There were 3 causes:
    java.io.IOException(File unsuitable for memory mapping)
    java.io.FileNotFoundException(/document/msf:25: open failed: ENOENT (No such file or directory))
    java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
     call GlideException#logRootCauses(String) for more detail
      Cause (1 of 3): class com.bumptech.glide.load.engine.GlideException: Fetching data failed, class java.nio.ByteBuffer, LOCAL
    There was 1 cause:
    java.io.IOException(File unsuitable for memory mapping)
     call GlideException#logRootCauses(String) for more detail
        Cause (1 of 1): class java.io.IOException: File unsuitable for memory mapping
      Cause (2 of 3): class com.bumptech.glide.load.engine.GlideException: Fetching data failed, class java.io.InputStream, LOCAL
    There was 1 cause:
    java.io.FileNotFoundException(/document/msf:25: open failed: ENOENT (No such file or directory))
     call GlideException#logRootCauses(String) for more detail
        Cause (1 of 1): class java.io.FileNotFoundException: /document/msf:25: open failed: ENOENT (No such file or directory)
      Cause (3 of 3): class com.bumptech.glide.load.engine.GlideException: Fetching data failed, class android.os.ParcelFileDescriptor, LOCAL
    There was 1 cause:
    java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
     call GlideException#logRootCauses(String) for more detail
        Cause (1 of 1): class java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
I/Glide: Root cause (1 of 3)
    java.io.IOException: File unsuitable for memory mapping
        at com.bumptech.glide.util.ByteBufferUtil.fromFile(ByteBufferUtil.java:38)
        at com.bumptech.glide.load.model.ByteBufferFileLoader$ByteBufferFetcher.loadData(ByteBufferFileLoader.java:61)
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70)
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63)
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310)
        at com.bumptech.glide.load.engine.DecodeJob.runWrapped(DecodeJob.java:279)
        at com.bumptech.glide.load.engine.DecodeJob.run(DecodeJob.java:234)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:919)
        at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1.run(GlideExecutor.java:393)
I/Glide: Root cause (2 of 3)
    java.io.FileNotFoundException: /document/msf:25: open failed: ENOENT (No such file or directory)
        at libcore.io.IoBridge.open(IoBridge.java:496)
        at java.io.FileInputStream.<init>(FileInputStream.java:159)
        at com.bumptech.glide.load.model.FileLoader$StreamFactory$1.open(FileLoader.java:142)
        at com.bumptech.glide.load.model.FileLoader$StreamFactory$1.open(FileLoader.java:139)
        at com.bumptech.glide.load.model.FileLoader$FileFetcher.loadData(FileLoader.java:71)
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70)
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63)
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310)
        at com.bumptech.glide.load.engine.DecodeJob.onDataFetcherFailed(DecodeJob.java:408)
        at com.bumptech.glide.load.engine.SourceGenerator.onLoadFailedInternal(SourceGenerator.java:160)
        at com.bumptech.glide.load.engine.SourceGenerator$1.onLoadFailed(SourceGenerator.java:83)
        at com.bumptech.glide.load.model.ByteBufferFileLoader$ByteBufferFetcher.loadData(ByteBufferFileLoader.java:66)
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70)
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63)
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310)
        at com.bumptech.glide.load.engine.DecodeJob.runWrapped(DecodeJob.java:279)
        at com.bumptech.glide.load.engine.DecodeJob.run(DecodeJob.java:234)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:919)
        at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1.run(GlideExecutor.java:393)
     Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
        at libcore.io.Linux.open(Native Method)
        at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
        at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252)
        at libcore.io.ForwardingOs.open(ForwardingOs.java:167)
        at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7255)
        at libcore.io.IoBridge.open(IoBridge.java:482)
        at java.io.FileInputStream.<init>(FileInputStream.java:159) 
        at com.bumptech.glide.load.model.FileLoader$StreamFactory$1.open(FileLoader.java:142) 
        at com.bumptech.glide.load.model.FileLoader$StreamFactory$1.open(FileLoader.java:139) 
        at com.bumptech.glide.load.model.FileLoader$FileFetcher.loadData(FileLoader.java:71) 
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70) 
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63) 
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310) 
        at com.bumptech.glide.load.engine.DecodeJob.onDataFetcherFailed(DecodeJob.java:408) 
        at com.bumptech.glide.load.engine.SourceGenerator.onLoadFailedInternal(SourceGenerator.java:160) 
        at com.bumptech.glide.load.engine.SourceGenerator$1.onLoadFailed(SourceGenerator.java:83) 
        at com.bumptech.glide.load.model.ByteBufferFileLoader$ByteBufferFetcher.loadData(ByteBufferFileLoader.java:66) 
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70) 
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63) 
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310) 
        at com.bumptech.glide.load.engine.DecodeJob.runWrapped(DecodeJob.java:279) 
        at com.bumptech.glide.load.engine.DecodeJob.run(DecodeJob.java:234) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
        at java.lang.Thread.run(Thread.java:919) 
        at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1.run(GlideExecutor.java:393) 
I/Glide: Root cause (3 of 3)
    java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
        at android.os.ParcelFileDescriptor.openInternal(ParcelFileDescriptor.java:315)
        at android.os.ParcelFileDescriptor.open(ParcelFileDescriptor.java:220)
        at com.bumptech.glide.load.model.FileLoader$FileDescriptorFactory$1.open(FileLoader.java:166)
        at com.bumptech.glide.load.model.FileLoader$FileDescriptorFactory$1.open(FileLoader.java:163)
        at com.bumptech.glide.load.model.FileLoader$FileFetcher.loadData(FileLoader.java:71)
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70)
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63)
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310)
        at com.bumptech.glide.load.engine.DecodeJob.onDataFetcherFailed(DecodeJob.java:408)
        at com.bumptech.glide.load.engine.SourceGenerator.onLoadFailedInternal(SourceGenerator.java:160)
        at com.bumptech.glide.load.engine.SourceGenerator$1.onLoadFailed(SourceGenerator.java:83)
        at com.bumptech.glide.load.model.FileLoader$FileFetcher.loadData(FileLoader.java:76)
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70)
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63)
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310)
        at com.bumptech.glide.load.engine.DecodeJob.onDataFetcherFailed(DecodeJob.java:408)
        at com.bumptech.glide.load.engine.SourceGenerator.onLoadFailedInternal(SourceGenerator.java:160)
        at com.bumptech.glide.load.engine.SourceGenerator$1.onLoadFailed(SourceGenerator.java:83)
        at com.bumptech.glide.load.model.ByteBufferFileLoader$ByteBufferFetcher.loadData(ByteBufferFileLoader.java:66)
        at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:70)
        at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:63)
        at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:310)
        at com.bumptech.glide.load.engine.DecodeJob.runWrapped(DecodeJob.java:279)
        at com.bumptech.glide.load.engine.DecodeJob.run(DecodeJob.java:234)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:919)
        at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1.run(GlideExecutor.java:393)

我調試代碼以查看圖像的路徑是否成功返回並且確實如此。 但它沒有顯示在列表項中。 我認為添加過程發生的部分沒有任何問題。

1 個解決方案

解決方案1
 3 已采納  2020-04-28 17:18:22

您需要在with()中傳遞包含圖像視圖的活動/片段的上下文。

您可以通過在適配器構造函數中傳遞活動的上下文來實現這一點。 例如，您的 Adapter 構造函數可能如下所示：

myAdapter(Context context, List<Object> dataset) {
            this.context = context;
            ...
            ...
               }

當您從適配器創建實例時，您可以像這樣傳遞上下文：

myAdapter adapter = new MyAdapter(this,...);

然后你可以像這樣使用 Glide 的上下文：

Glide.with(context)

我希望這會有所幫助，如果您需要更多說明，請在評論中告訴我！

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