使用 Glide 库从 OnActivityResult 检索的 Uri 时访问被拒绝

Question

我已经使用标签 uses-permission 和 uses-permission-sdk-23 在 Android Manifest 下声明了 READ_EXTERNAL_STORAGE。我还向用户请求了 READ_EXTERNAL_STORAGE 权限。我也使用了标志 FLAG_GRANT_READ_URI_PERMISSION。

Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
            photoPickerIntent.setType("image/*");
            photoPickerIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            if (photoPickerIntent.resolveActivity(getPackageManager()) != null) {
                startActivityForResult(photoPickerIntent, REQUEST_IMAGE_GALLERY);
            }

这就是我向用户请求要在 onActivityResult 中检索照片的方式。我还使用 glide 库从用户那里检索照片。

requestMgr.load(new File(uri.getPath())).into(imageView);

这是在我检查我从 onActivityResult 返回的意图是否为空之后所写的内容。

 if(intent != null){
     Uri uri = intent.getData();
     requestMgr.load(new File(uri.getPath())).into(imageView);
 } else {
     displayImageStorageErrorMessage();
     loadProfileImage();
} 

loadProfileImage() 只是一个后备，以防我尝试加载图像时发生任何事情。 Glide.with() 是在检查意图之前编写的，因为我也将它用于用户想要自拍的时候。

但是，imageView 不显示用户选择的图像。在我将 requestlistener 附加到 Glide 之后，结果如下：

java.io.FileNotFoundException: open failed: EACCES (Permission denied)
        at android.os.ParcelFileDescriptor.openInternal(ParcelFileDescriptor.java:315)
        at android.os.ParcelFileDescriptor.open(ParcelFileDescriptor.java:220)
        at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1498)
        at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1420)
        at com.bumptech.glide.load.data.AssetFileDescriptorLocalUriFetcher.loadResource(AssetFileDescriptorLocalUriFetcher.java:20)
        at com.bumptech.glide.load.data.AssetFileDescriptorLocalUriFetcher.loadResource(AssetFileDescriptorLocalUriFetcher.java:11)
        at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:44)
        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$1.onLoadFailed(SourceGenerator.java:83)
        at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.startNextOrFail(MultiModelLoader.java:167)
        at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.onLoadFailed(MultiModelLoader.java:154)
        at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:49)
        at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
        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$1.onLoadFailed(SourceGenerator.java:83)
        at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.startNextOrFail(MultiModelLoader.java:167)
        at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.onLoadFailed(MultiModelLoader.java:154)
        at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:49)
        at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
        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)

我是否缺少一些我尚未完成的权限？

Answer 1

问题 #1：ACTION_PICK 不使用 MIME 类型

问题 #2：ACTION_PICK 确实使用了 Uri 来指示您从中挑选的集合，而您没有提供一个

问题 #3：ACTION_PICK 可能会通过 onActivityResult() 返回 content Uri，而不是文件系统路径

问题 #4：setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION) 毫无意义，因为您没有将 content Uri 提供给另一个应用程序，更不用说您可以授予读取权限的应用程序了

要解决这些问题，请将您的第一个代码 sn-p 替换为以下内容：

        Intent photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
        photoPickerIntent.setType("image/*");

        if (photoPickerIntent.resolveActivity(getPackageManager()) != null) {
            startActivityForResult(photoPickerIntent, REQUEST_IMAGE_GALLERY);
        }

将第二个代码 sn-p 替换为：

if(intent != null){
     Uri uri = intent.getData();
     requestMgr.load(uri).into(imageView);
 } else {
     displayImageStorageErrorMessage();
     loadProfileImage();
}