How to create File In Internal Storage?

Question

I read about it but I am unable to create a folder in internal storage that i can see it.

I have tried below code

 ContextWrapper contextwrapper=new ContextWrapper(MainActivity.this);
 File file=new File(getfiledir(),"namefile");

You say file in the title and folder in the question body. Which of the two do you really want? — Filnor, Dec 21 '17 at 10:26
Possible duplicate of [Creating Folder in Internal memory](https://stackoverflow.com/questions/15831051/creating-folder-in-internal-memory) — Ramesh sambu, Dec 21 '17 at 10:27

score 2 · Answer 1 · edited Dec 21 '17 at 11:57

2

Try this following, it's working fine.

   File file=new File(Environment.getExternalStorageDirectory()+"/folderName");

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

        String data="this is my first insert data";


        File myappFile=new File(file
                + File.separator + "myapp.txt");

        FileOutputStream fos = new FileOutputStream(myappFile);
        fos.write(data.getBytes());
        fos.close();

Must require these permissions,

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

edited Dec 21 '17 at 11:57

Dhruv Patel

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answered Dec 21 '17 at 11:54

sunil

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This creates a file in external storage as you can see. – greenapps Dec 21 '17 at 12:31
`if (!file.exists()) { file.mkdirs(); }`. Check the return value of mkdirs(). `if (!file.exists()) { if ( !file.mkdirs()){ Toast(... sorry cannot create directory ...); return;} }` – greenapps Dec 21 '17 at 12:32
`Must require these permissions,`. You forget requesting permissions at runtime for Android 6+. – greenapps Dec 21 '17 at 12:33

How to create File In Internal Storage?

1 Answers1