Convert File to DocumentFile

问题

I want to convert File (/storage/A54E-14E9/bp.mp4) to DocumentFile

Uri of DocumentFile should be content://com.android.externalstorage.documents/tree/A54E-14E9%3A/document/A54E-14E9%3Abp.mp4

but when I use DocumentFile.fromFile(file).getUri() it returns not correct Uri:

file:///storage/A54E-14E9/bp.mp4

So it's different than when you get it in onActivityResult after calling startActivityForResult(new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE), REQUEST_CODE_STORAGE_ACCESS);

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQUEST_CODE_STORAGE_ACCESS && resultCode == RESULT_OK) {
            Uri treeUri = data.getData();
            mDocumentDir = DocumentFile.fromTreeUri(this, treeUri);
            for (DocumentFile file : mDocumentDir.listFiles()) {
                // one of them is content://com.android.externalstorage.documents/tree/A54E-14E9%3A/document/A54E-14E9%3Abp.mp4
                Log.i(TAG, file.getUri());
            }
        }
    }

or if it's not possible then how to find what equals to File (/storage/A54E-14E9/bp.mp4) in:

// in onActivityResult
for (DocumentFile file : mDocumentDir.listFiles()) {
    Log.i(TAG, file.getUri());
}

it's not good idea to just check file names, I need to check absolute paths (if they equals), also file can be placed in subfodler, so it makes things more difficult

My task is to delete File from MicroSD card, it can be done using DocumentFile after requesting storage (ACTION_OPEN_DOCUMENT_TREE) but I need somehow to get the right DocumentFile which equals my File

来源：https://stackoverflow.com/questions/50550913/convert-file-to-documentfile

标签

android

android-file

documentfile