Let us see the steps on how to perform this task in android .Create new project with a valid name, once everything ready our projects looks like below screen.

projects looks

activity_main.xml code

  1. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  2. xmlns:tools="http://schemas.android.com/tools"
  3. android:layout_width="match_parent"
  4. android:layout_height="match_parent"
  5. android:paddingBottom="@dimen/activity_vertical_margin"
  6. android:paddingLeft="@dimen/activity_horizontal_margin"
  7. android:paddingRight="@dimen/activity_horizontal_margin"
  8. android:paddingTop="@dimen/activity_vertical_margin"
  9. tools:context="com.example.stoarage.MainActivity" >
  11. <TextView
  12. android:id="@+id/textView1"
  13. android:layout_width="wrap_content"
  14. android:layout_height="wrap_content"
  15. android:text="@string/hello_world" />
  17. </RelativeLayout>
MainActivity.java Code:
  1. package com.example.stoarage;
  2. import java.io.File;
  3. import java.io.FileInputStream;
  4. import java.io.FileOutputStream;
  5. import java.util.zip.ZipEntry;
  6. import java.util.zip.ZipInputStream;
  7. import android.annotation.SuppressLint;
  8. import android.app.Activity;
  9. import android.os.Bundle;
  10. import android.os.Environment;
  11. import android.view.Menu;
  12. import android.view.MenuItem;@
  13. SuppressLint("SdCardPath")
  14. public class MainActivity extends Activity {@
  15. Override
  16. protected void onCreate(Bundle savedInstanceState) {
  17. super.onCreate(savedInstanceState);
  18. setContentView(R.layout.activity_main);
  19. String path = Environment.getDataDirectory().getAbsolutePath().toString() + "/storage/emulated/0/appFolder";
  20. File mFolder = new File(path);
  21. if (!mFolder.exists()) {
  22. mFolder.mkdir();
  23. }
  24. File Directory = new File("/sdcard/myappFolder/");
  25. Directory.mkdirs();
  26. }@
  27. Override
  28. public boolean onCreateOptionsMenu(Menu menu) {
  29. // Inflate the menu; this adds items to the action bar if it is present.
  30. getMenuInflater().inflate(R.menu.main, menu);
  31. return true;
  32. }
  34. @
  35. Override
  36. public boolean onOptionsItemSelected(MenuItem item) {
  37. // Handle action bar item clicks here. The action bar will
  38. // automatically handle clicks on the Home/Up button, so long
  39. // as you specify a parent activity in AndroidManifest.xml.
  40. int id = item.getItemId();
  41. if (id == R.id.action_settings) {
  42. return true;
  43. }
  44. return super.onOptionsItemSelected(item);
  45. }
  46. }
Add UserPermission in Android.MainFest.xml

Now Run the Application by pressing Ctrl+F11 and see the output as show like below. Open the File Explorer -> Storage ->Sdcard -> myappFolder.

Final result:

Final result