Develop Reference

Uploading files using firebase storage

I am trying to upload files(pdf,ppt,docx) from local file using new firebase storage. I tried code from https://firebase.google.com/docs/storage/android/upload-files#upload_from_a_local_file , but got error.

Found answer.
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.setType("*/*");
startActivityForResult(intent, RESULT_LOAD_IMAGE);
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && data != null){
Uri selectedImage = data.getData();
final StorageReference photoRef = storageRef.child(selectedImage.getLastPathSegment());
photoRef.putFile(selectedImage);
}
}

Path of Image to be passed in Uri.parse to open an image using intent

I'm trying to open an image using intent.
The path of the image in my storage is /storage/emulated/0/nitp/download/logo.png.
My code is
Intent intent = new Intent();
intent.setAction(Intent.ACTION_DEFAULT);
intent.setDataandType(Uri.parse("/storage/emulated/0/nitp/download/logo.png"),"image/*");
startActivity(intent);
I also tried putting file://storage/emulated/0/nitp/download/logo.png
and content://storage/emulated/0/nitp/download/logo.png
What is the path I should use?
Solved
Have to use file:///storage/emulated/0/nitp/downloads/logo.png

For Pick image from media Storage or SD Card:
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);
And For get the path of Image and set in ImageView:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
Uri filePath = data.getData();
try {
//Getting the Bitmap from Gallery
imgpath= MediaStore.Images.Media.getBitmap(getContentResolver(), filePath);
//Setting the Bitmap to ImageView
imageViewProfileImage.setImageBitmap(imgpath);
} catch (IOException e) {
e.printStackTrace();
}
}
}
Hope this work.

Bad image quality after picking an image from gallery

I use this to let the user pick an image from gallery:
Intent i = new Intent(
Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
i.setType("image/*");
i.putExtra("crop", "true");
i.putExtra("scale", true);
i.putExtra("return-data", true);
startActivityForResult(i, RESULT_LOAD_IMAGE);
Then it will be displayed in an ImageView:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
final Bundle extras = data.getExtras();
Bitmap photo = extras.getParcelable("data");
ImageView imageView = (ImageView) findViewById(R.id.image);
imageView.setImageBitmap(photo);
}
}
It works but the picture now has a bad quality.
How to fix this?

You shouldn't specify any of those extras because they are device-dependent. Just do this:
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, RESULT_LOAD_IMAGE);
and
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK)
{
Uri selectedImage = data.getData();
//load Uri into ImageView
}
}
I would look into using a library like Picasso to load the images instead of just doing imageView.setImageBitmap(photo) if your app is image intensive.

Pick a file from an SD card using Intent

Does Android have a way to browse and pick any file from an SD card using intents?
Something like:
String uri = (Environment.getExternalStorageDirectory()).getAbsolutePath();
Intent i = new Intent(Intent.ACTION_PICK, Uri.parse(uri));
I am trying to send a file to other devices using Bluetooth. I can send if I give the full path of the file name in my code. I want my users to pick the file that should be send.

You can use the following code:
Intent mediaIntent = new Intent(Intent.ACTION_GET_CONTENT);
mediaIntent.setType("video/*"); // Set MIME type as per requirement
startActivityForResult(mediaIntent,REQUESTCODE_PICK_VIDEO);
Then you can get the path in onActivityResult:
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUESTCODE_PICK_VIDEO
&& resultCode == Activity.RESULT_OK) {
Uri videoUri = data.getData();
Log.d("", "Video URI= " + videoUri);
}
}

For general browsing use this (e.g. Music file):
Intent intent = new Intent();
intent.setType("*/*");
if (Build.VERSION.SDK_INT < 19) {
intent.setAction(Intent.ACTION_GET_CONTENT);
intent = Intent.createChooser(intent, "Select file");
} else {
intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
String[] mimetypes = { "audio/*", "video/*" };
intent.putExtra(Intent.EXTRA_MIME_TYPES, mimetypes);
}
startActivityForResult(intent, Constants.REQUEST_BROWSE);
And receive the browsed data here:
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == Constants.REQUEST_BROWSE
&& resultCode == Activity.RESULT_OK && data != null) {
Uri uri = data.getData();
if (uri != null) {
// TODO: handle your case
}
}
}

How open document pdf/docx with external app in Android

How open document pdf/docx with external app in Android

Try the below code :
File pdfFile = new File("File Path");
Intent openPdf = new Intent(Intent.ACTION_VIEW);
openPdf.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
fileUri = FileProvider.getUriForFile(viewContext,com.mydomain.fileprovider, pdfFile);
openPdf.setDataAndType(fileUri, "application/pdf");
openPdf.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(Intent.createChooser(openPdf, "Select Application"));
Note : You need File Provider for granting URI permissions check this out

This will help you
//method to show file chooser
private void showFileChooser() {
Intent intent = new Intent();
intent.setType("application/pdf");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Pdf"), PICK_PDF_REQUEST);
}
You will get the result in onActivity result
//handling the image chooser activity result
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_PDF_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
filePath = data.getData();
}
}
For more info you can look into https://stackoverflow.com/a/11038348/11834065