在Glide 4中使用AppGlideModule中的RequestOptions [英] Using RequestOptions in AppGlideModule with Glide 4

问题描述

我将Glide库与AppGlideModule(4.1.1版)一起使用.这是我的滑行模块类:

@GlideModule
public class GlideUtil extends AppGlideModule {

    private final int IMAGE_CACHE_SIZE = 20 * 1024 * 1024; // 20 MB
    private final String IMAGE_FOLDER = "/User/Images";

    @Override
    public void applyOptions(Context context, GlideBuilder builder) {
        RequestOptions requestOptions = new RequestOptions();
        requestOptions.format(DecodeFormat.PREFER_ARGB_8888);
        requestOptions.diskCacheStrategy(DiskCacheStrategy.ALL);
        builder.setDefaultRequestOptions(requestOptions);
        InternalCacheDiskCacheFactory factory = new InternalCacheDiskCacheFactory(context, IMAGE_FOLDER, IMAGE_CACHE_SIZE);
        builder.setDiskCache(factory);

    }

    @Override
    public boolean isManifestParsingEnabled() {
        return false;
    }

此代码成功运行.但是当我将滑行库的版本更新为4.3.1

compile 'com.github.bumptech.glide:glide:4.3.1' 
annotationProcessor 'com.github.bumptech.glide:compiler:4.3.1'

在GlideUtil类中，我看到以下消息:未使用格式的结果"，未使用diskCacheStrategyis的结果":

那么，如何解决这个问题?并且diskCacheStrategy和format方法在Glide 4.3.1上可以工作吗?

解决方案

问题是，您没有使用请参见用@CheckResult注释的方法，这是皮棉理解的方式，您使用的是错误的方式，因为您正在不检查结果" . >

请执行以下操作:

    RequestOptions requestOptions = new RequestOptions();
    requestOptions = requestOptions.format(DecodeFormat.PREFER_ARGB_8888);
    requestOptions = requestOptions.diskCacheStrategy(DiskCacheStrategy.ALL);

现在警告消失了.

或者您可以直接执行以下操作:

    builder.setDefaultRequestOptions(new RequestOptions()
                                        .format(DecodeFormat.PREFER_ARGB_8888)
                                        .diskCacheStrategy(DiskCacheStrategy.ALL));

I used the `Glide library with AppGlideModule, version of library 4.1.1. Here is my glide module class:

@GlideModule
public class GlideUtil extends AppGlideModule {

    private final int IMAGE_CACHE_SIZE = 20 * 1024 * 1024; // 20 MB
    private final String IMAGE_FOLDER = "/User/Images";

    @Override
    public void applyOptions(Context context, GlideBuilder builder) {
        RequestOptions requestOptions = new RequestOptions();
        requestOptions.format(DecodeFormat.PREFER_ARGB_8888);
        requestOptions.diskCacheStrategy(DiskCacheStrategy.ALL);
        builder.setDefaultRequestOptions(requestOptions);
        InternalCacheDiskCacheFactory factory = new InternalCacheDiskCacheFactory(context, IMAGE_FOLDER, IMAGE_CACHE_SIZE);
        builder.setDiskCache(factory);

    }

    @Override
    public boolean isManifestParsingEnabled() {
        return false;
    }

This code worked successfully. But when i updated version of glide library to 4.3.1

compile 'com.github.bumptech.glide:glide:4.3.1' 
annotationProcessor 'com.github.bumptech.glide:compiler:4.3.1'

in GlideUtil class i saw messages: "The result of format is not used", "The result of diskCacheStrategyis not used":

So, how to resolve this? And do the methods diskCacheStrategy and format work on Glide 4.3.1 ?

解决方案

The problem is, that you are not using the builder object, that is returned by format(), thus your actions become pointless, that's why lint warns you. You can see that method annotated with @CheckResult, that's how lint understands, that you are on a wrong way, because you are "not checking the result" returned by that method.

Instead perform following:

    RequestOptions requestOptions = new RequestOptions();
    requestOptions = requestOptions.format(DecodeFormat.PREFER_ARGB_8888);
    requestOptions = requestOptions.diskCacheStrategy(DiskCacheStrategy.ALL);

Now the warning would be gone.

Or you may perform following directly:

    builder.setDefaultRequestOptions(new RequestOptions()
                                        .format(DecodeFormat.PREFER_ARGB_8888)
                                        .diskCacheStrategy(DiskCacheStrategy.ALL));

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