"Java.io.filenotfoundexception" error when reading assets file

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Hi all,

In my app, I have added a new directory to assets. This directory has one binary (.bin)file.
I'm trying to read this file using InputStream with no success.
I can see the file name I even can compare the name to an existing string, but I can't open it.

Please advise.

What I have tried:

Java

AssetManager manager =SmartControlApplication.getContext().getResources().getAssets();
	String[] list = null;
        try{
            list = manager.list("firmware");
            for(String file : list){
                if(file.toString().equals(imgPath)){ //return true, the file does exist
                    Log.d(LOG_TAG, "file name "+ file.toString());
                    InputStream stream = manager.open(file);
                    stream.read(mFileBuffer, 0, mFileBuffer.length);
                    stream.close();  
                    success = true;
                }
            }
        }catch(IOException ex){
            ex.printStackTrace();
            success = false;
        }

I also tried to use BufferReader

Java

BufferedReader reader = null;
reader = new BufferedReader(new InputStreamReader(manager.open(file)));
String mLine;
while ((mLine = reader.readLine()) != null) {
//process line
Log.d(LOG_TAG, "file name "+ file.toString());

But always InputStream sees no file.

Posted 29-Mar-18 6:00am

Samira Radwan

Updated 5-Apr-18 4:39am

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wseng 29-Mar-18 12:01pm

Did it displayed something in this line ? Log.d(LOG_TAG, "file name "+ file.toString());

Samira Radwan 29-Mar-18 12:12pm

Yes, it does. I have just checked the Logcat

wseng 29-Mar-18 12:18pm

check which line is wrong. Maybe it fail after InputStream stream = manager.open(file); ?

Samira Radwan 29-Mar-18 12:21pm

It fails at this line. InputStream doesn't see the file when i try to open it. I even used DataInputStream and it gives the same (No such file or directory). any suggestions?

wseng 29-Mar-18 12:24pm

Can you replace to this code and see ? InputStream inputStream = new FileInputStream(inputFile);

Samira Radwan 29-Mar-18 12:36pm

no luck!!

wseng 29-Mar-18 12:44pm

Just curious what is the value of file . Why do you need String[] since you can actually use String to achieve? Just assign the path value to String file and see how things goes.

Samira Radwan 29-Mar-18 13:01pm

I don't think this is the problem, the reason for using list is I will be having number of files in this folder. I have to filter which one to use.
I have just tested the list and i can see i have 2 files when debugging. so if the [manager.list] has files in this directory, why the stream doesn't see them?

Samira Radwan 29-Mar-18 13:14pm

Thank you for your help. I copied the file directly in the assets folder (no sub folders) and it seems to work. still puzzled why not in sub folder, but it works fine for now. Thanks again

David Crow 29-Mar-18 13:37pm

"I have added a new directory to assets."

Your code does not appear to be taking this "new directory" into consideration.

Also, Is it intentional that the for() loop continue to look for files even after finding the one it was looking for?

Samira Radwan 5-Apr-18 7:22am

yes i have added "firmware" directory. check this line of code: list = manager.list("firmware"); (list of all files in "firmware" folder.

David Crow 5-Apr-18 9:40am

Is an exception being thrown?

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David Crow · Answer 1 · 2018-04-05T04:41:00

Solution 1

I suspect you want something like:

InputStream stream = manager.open("firmware/" + file);

Posted 5-Apr-18 4:41am

David Crow

Comments

Samira Radwan 5-Apr-18 16:21pm

Looks like you might be right. I will give it a try. thank you