Error while creating a file

Question

For some reason you can’t create a file.

W/System.err: java.io.IOException: No such file or directory

Follow the code below:

public class MainActivity extends AppCompatActivity {
ImageView imageView;
OutputStream outputStream;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    imageView = findViewById(R.id.image);
    findViewById(R.id.save).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
            Bitmap bitmap = drawable.getBitmap();

            File dir = new File(Environment.DIRECTORY_PICTURES);
            dir.mkdir();
            File file = new File(dir,System.currentTimeMillis() + ".jpg");
            try {
                file.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }
            try {
                outputStream = new FileOutputStream(file);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
            Toast.makeText(MainActivity.this, "Salve", Toast.LENGTH_SHORT).show();
            try {
                outputStream.flush();
            } catch (IOException e) {
                e.printStackTrace();
            }
            try {
                outputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });

}

And the xml:

<?xml version = "1.0" encoding = "utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context=".MainActivity"
    android:gravity="center"
    android:orientation="vertical">
    <ImageView
        android:layout_width="250dp"
        android:layout_height="250dp"
        android:id="@+id/image"
        app:srcCompat="@drawable/mario"></ImageView>
    <Button
        android:id = "@+id/save"
        android:text = "save"
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content" />
</LinearLayout>

And in the manifest I put the permissions to read and write

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

and also gave permissions inside android.

I tried several different ways and it still doesn’t work, if I check the directory and/ or the file already exist, it indicates that it doesn’t exist, and when trying to create the file it returns the error No such file or directory.

Does anyone have any idea what might be, or that I’m doing it wrong?

Answer 1

Try to use, it’s a pattern I use when creating files;

   usar File.separator ex:File dir = new File(caminhoPastaTemp + File.separator + uuid);


   if(!dir.exists()){
        dir.mkdirs();
    }

    //arquivoParametro é o file vc vai pegar os bytes para salvar;
   //Util.removerAcentos é um método meu que retira os acentos
    byte[] arquivo = arquivoParametro.getBytes();
   String nomeArquivo = dir.getAbsolutePath() + File.separator + Util.removerAcentos(arquivoParametro.getOriginalFilename())

    FileOutputStream file  = null;
    try{
        file = new FileOutputStream(nomeArquivo);
        file.write(arquivo);   //importante
        file.flush();
        file.close();
    }catch(Exception exception) {
        exception.printStackTrace(System.out);
    }finally{
        if(file!=null){
            try {
                file.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }