Android: How to select a file

An often useful feature is the ability to choose a file to fiddle with, may it be a photo, a music file or a text file.

To kick it off, we need to start an activity with an intent of ACTION_GET_CONTENT.

view sourceprint?

01.public class ActivityTestActivity extends Activity {

02.  final int ACTIVITY_CHOOSE_FILE = 1;

03. 

04.  @Override

05.  public void onCreate(Bundle savedInstanceState) {

06.    super.onCreate(savedInstanceState);

07.    setContentView(R.layout.main);

08. 

09.    Button btn = (Button) this.findViewById(R.id.Button01);

10.    btn.setOnClickListener(new OnClickListener() {

11.      @Override

12.      public void onClick(View v) {

13.        Intent chooseFile;

14.        Intent intent;

15.        chooseFile = new Intent(Intent.ACTION_GET_CONTENT);

16.        chooseFile.setType("file/*");

17.        intent = Intent.createChooser(chooseFile, "Choose a file");

18.        startActivityForResult(intent, ACTIVITY_CHOOSE_FILE);

19.      }

20.    });

21.  }

22. 

23.  @Override

24.  protected void onActivityResult(int requestCode, int resultCode, Intent data) {

25.    switch(requestCode) {

26.      case ACTIVITY_CHOOSE_FILE: {

27.        if (resultCode == RESULT_OK){

28.          Uri uri = data.getData();

29.          String filePath = uri.getPath();

30.        }

31.      }

32.    }

33.  }

34.}

NOTE: If you're constantly getting "No applications can perform this action", even with FileExpert or ASTRO installed, then you need to give your emulator some space in "/sdcard" to work with.

So what this code does is:

• Creates an intent to get some content.
• Gives the choose a title of "Choose a file"
• Kicks off the file chooser activity with the ID of ACTIVITY_CHOOSE_FILE (1).
• When the activity returns with a result, we need to check if it was a valid result with RESULT_OK.
• After you get the filePath out of data.getData().getPath() and you can begin working with the file.

Keep rollin' speed-demon!

Source: choose a file from device and upload it to page loaded in the webview