问题

I am a new to Android Development. I wish to select an image or a video from the Gallery of an Android Device. Store it in a variable of typeFile. I am doing this, since I need to upload the image/video on dropbox using the Android API from my application. The constructor takes in the fourth parameter of the type File. I am not sure, what to pass as a file since all the examples I searched display the image chosen in an ImageView by using the url and making a bitmap.

imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));

Here is the code, I have.

final Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
//to get image and videos, I used a */"
galleryIntent.setType("*/*"); 
startActivityForResult(galleryIntent, 1);

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == 1 && resultCode == RESULT_OK) {               
    Uri selectedImageUri = data.getData();
    imagepath = getPath(selectedImageUri);                
    }
}

public String getPath(Uri uri) {
    String[] projection = { MediaStore.Images.Media.DATA };
    Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();                
    int columnIndex = cursor.getColumnIndex(projection[0]);
    String filePath = cursor.getString(columnIndex);
    cursor.close();        
    yourSelectedImage = BitmapFactory.decodeFile(filePath);
    return cursor.getString(column_index);
}

回答1:

All you need to do is just create a File variable with the path of image which you've selected from gallery. Change your OnActivityResult as :

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == 1 && resultCode == RESULT_OK) {               
    Uri selectedImageUri = data.getData();
    imagepath = getPath(selectedImageUri); 
    File imageFile = new File(imagepath);
    }
}

回答2:

Try this

You can try this also

public void onActivityResult(int requestCode, int resultCode, Intent data)
{

    if (requestCode == 1 && resultCode == RESULT_OK && data != null)
    {
        File destination = new File(Environment.getExternalStorageDirectory(),System.currentTimeMillis() + ".jpg");
 //You will get file path of captured camera image
        Bitmap photo = (Bitmap) data.getExtras().get("data");
        iv_profile.setImageBitmap(photo);
    }
}

来源：https://stackoverflow.com/questions/23074845/android-choose-image-from-gallery-and-store-it-in-a-file-type-variable

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android