Question

所以我想要的是使用URI删除文件

请勿标记为重复

我尝试了很多答案，但这里没有解决的问题

How to delete file that is created using Uri?

我编写了从图库中获取图像的代码，然后将其复制到名为“ .blackhat”的目录中，并删除了原始图像（一种“移动文件功能”）。即使它不是生成日志，所以我可以检查错误。此代码适用于复制文件，但不能在复制后删除。...

if(requestCode == 2 && data.getData() !=null){
        if(cd == null){
            path.add(data.getData());
            Random rn = new Random();
            if(copyFileFromUri(this,data.getData(),String.valueOf(rn.nextInt(500)))){
                File fdelete = new File(data.getData().getPath());
                if (fdelete.exists()) {
                    if (fdelete.delete()) {
                        Log.d("delete","deleted");
                    } else {
                        Log.d("delete","not deleted");
                    }
                }
                Toast.makeText(this, "Done", Toast.LENGTH_SHORT).show();
            }

        }else{
            for(int i=0;i<data.getClipData().getItemCount();i++){
                path.add(data.getClipData().getItemAt(i).getUri());
                Log.d("RjList",path.get(i).toString());
                Random rn=new Random();
                if(copyFileFromUri(this,data.getClipData().getItemAt(i).getUri(),String.valueOf(rn.nextInt(500)))){
                    File fdelete = new File(data.getClipData().getItemAt(i).getUri().getPath());
                    if (fdelete.exists()) {
                        if (fdelete.delete()) {
                            Log.d("delete","deleted");
                        } else {
                            Log.d("delete","not deleted");
                        }
                    }
                    Toast.makeText(this, "Done", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }

我在哪里做错了？？？？预先感谢...

Answer 1

public static boolean delete(final Context context, final File file) {
final String pathone = MediaStore.MediaColumns.DATA + "=?";
final String[] selectedArgs = new String[] {
        file.getAbsolutePath()
};
final ContentResolver contentResolver = context.getContentResolver();
final Uri fileUri = MediaStore.Files.getContentUri("external");

contentResolver.delete(fileUri, pathone, selectedArgs );

if (file.exists()) {

    contentResolver.delete(fileUri, pathone, selectedArgs );
}
return !file.exists();
}

Answer 2

File fdelete = new File(data.getData().getPath(),"here you should pass the file name");
            if (fdelete.exists()) {
                if (fdelete.delete()) {
                    Log.d("delete","deleted");
                } else {
                    Log.d("delete","not deleted");
                }
            }

Android使用URI删除文件不起作用

2 个答案: