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    <pre><code> &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt; </code></pre> <p>I have two folders like extSdCard and sdcard in my samsung galaxy s3.</p> <p>Use the below code to choose.</p> <pre><code>private String[] mFilePaths; File storageDir = new File("/mnt/"); if(storageDir.isDirectory()){ File[] dirList = storageDir.listFiles(); for (int i = 0; i &lt; dirList.length; i++) { mFilePaths[i] = dirList[i].getAbsolutePath(); System.out.println("...................................."+mFilePaths[i]); } } File Dir; if(android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))//check if sd card is mounted { Dir=new File(android.os.Environment.getExternalStorageDirectory(),"your folder name"); if(!Dir.exists())// if directory is not here Dir.mkdirs() // make directory } </code></pre> <p>Edit</p> <p>To get the paths of internal and external storage. below code works on samsung galaxy s3.</p> <pre><code>String externalpath = new String(); String internalpath = new String(); public void getExternalMounts() { Runtime runtime = Runtime.getRuntime(); try { Process proc = runtime.exec("mount"); InputStream is = proc.getInputStream(); InputStreamReader isr = new InputStreamReader(is); String line; BufferedReader br = new BufferedReader(isr); while ((line = br.readLine()) != null) { if (line.contains("secure")) continue; if (line.contains("asec")) continue; if (line.contains("fat")) {//external card String columns[] = line.split(" "); if (columns != null &amp;&amp; columns.length &gt; 1) { externalpath = externalpath.concat("*" + columns[1] + "n"); } } else if (line.contains("fuse")) {//internal storage String columns[] = line.split(" "); if (columns != null &amp;&amp; columns.length &gt; 1) { internalpath = internalpath.concat(columns[1] + "n"); } } } } catch(Exception e) { e.printStackTrace(); } System.out.println("Path of sd card external............"+externalpath); System.out.println("Path of internal memory............"+internalpath); } </code></pre> <p>Now you can use the path os external storage to create a folder.</p> <pre><code>if(android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))//check if sd card is mounted { Dir=new File(externalpath,"your folder name"); if(!Dir.exists())// if directory is not here Dir.mkdirs() // make directory } </code></pre>
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    1. POHow to create a directory in External SD in android application
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    1. USdavidtbernal
    1. USRaghunandan
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    1. COHi Raghunandan, thanks for the quick reply.I gave the permissions, <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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      1. USTripaty Sahu
    2. COok. then the above shoudl work. I used the above to cache images in my sdcard.
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    3. COI tried the code what you have given, but it is creating on sdcard, not in external sd card which is removable.I already created the folder on mnt/sdcard, but I want to create on mnt/extsd (or on some divice the external sd card path is mnt/extsdcard)
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