Develop Reference

Attach imageView to email

I want to attach imageView to send through Android mail services. This is how i get image from Gallery in Activity A:
public class Activity A extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_gallery);
private static int RESULT_LOAD_IMAGE = 1;
Button viewcards=(Button)findViewById(R.id.viewcards);
viewcards.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}});
}
#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)
{
Uri selectedImage = data.getData();
String[] filePathColumn =
{ MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Intent newdata = new Intent(SavedCards.this, Cardd.class);
newdata.putExtra("picture_path", picturePath);
startActivity(newdata);
}
}}
Transfer image to another class and and put imageView in Activity B:
public class Activity B extends Activity {
private ImageView cardimage;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.carddd);
String temp = getIntent().getStringExtra("picture_path");
cardimage = (ImageView) findViewById(R.id.cardimage);
cardimage.setImageBitmap(BitmapFactory.decodeFile(temp));
and in Activity B, i want to attach this image into e-mail by onClick.
txtsend=(TextView) findViewById(R.id.txtsend);
txtsend.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
As a reference, how image can attach e-mail is here, but this is to pick from gallery.
How to do this by taken image which is already set on imageView. Thank you.

In your code you setup image to ImageView from file in Activity B. And you know path to this picture file. When you send email just attach this file.
Uri uri = Uri.parse("file://" + attachmentFile);
emailIntent.putExtra(Intent.EXTRA_STREAM, uri);

You can use ImageView's getDrawable method see this http://developer.android.com/reference/android/widget/ImageView.html#getDrawable()
So something like,
Bitmap imgViewBmp = ((BitmapDrawable)cardImage.getDrawable()).getBitmap();
Should work.
PS: I would suggest you to first check the api reference docs for any class you want to use. Chances of finding what you are looking for is quite high. Next best thing would be to actually google what you want to solve, if that doesn't work then "rephrase" you words and try again. The chances that you will find your solution are doubled (if not more) with the latter!

how to pick images from mobile gallery into an android application

how to pick images from gallery into an android application?
I need to browse images form my gallery and choose them for my app .how it can be done ?

You'll need to use an intent to the gallery (well, "a gallery").
You can find a code example here (I haven't done it but it looks like it will work):
http://www.androidsnippets.com/get-file-path-of-gallery-image

Use this Code:
fromGalleryButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//takePhotoFromGallery = true;// edited
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);//
startActivityForResult(Intent.createChooser(intent, "Select Picture"),10);
}
});
And then add this:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 10 && resultCode == Activity.RESULT_OK) {
Uri contentUri = data.getData();
String[] proj = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
imagePath = cursor.getString(column_index);
tempBitmap = BitmapFactory.decodeFile(imagePath); // this is your image
}
}

In Kotlin you can do this.
In onCreate method
binding.updatephoto.setOnClickListener {
contract.launch("image/*")
}
After onCreate
private val contract = registerForActivityResult(ActivityResultContracts.GetContent()){
it?.let {
val imageUri = it
}
}

How to get Uri of image taken with camera and stored to Gallery

I'm launching camera from my application. I'm using Android.provider.MediaStore.ACTION_IMAGE_CAPTURE with extra android.provider.MediaStore.EXTRA_OUTPUT. If I use EXTRA_OUTPUT or not, photo is added to gallery.
How to get the Uri of the image in Gallery? I haven't found a clean way to do this, and I don't want to use the Uri of last added image to Gallery, because I can not be sure that it is the photo user took.
Edit:
Let me add here, that I do know how to get the image. Currently I'm using my Uri which I'm passing with Intent as an EXTRA_OUTPUT. That is not the problem. The problem is that using this method I get two photos written to sdcard, and I prefer that only one is written. Or in case of two is written, one in gallery and one in my own Uri, I would like to use one of those Uri:s and delete the other one. In both of the cases, I need the Uri of the photo, which is saved to Gallery by default.

If you start the camera by calling
startActivityForResult(cameraIntent, REQUEST_CODE_CAPTURE_IMAGE_ACTIVITY); // start the camera
in onActivityResult you can capture the mediaURI
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == REQUEST_CODE_CAPTURE_IMAGE_ACTIVITY
&& resultCode == RESULT_OK) {
Uri imageUri = null;
if (data != null){
imageUri = data.getData();
}
}
}
REQUEST_CODE_CAPTURE_IMAGE_ACTIVITY is a static integer value that's used to identify the request that was made through the intent. This is so if you have multiple startActivityForResults you can identify which one is coming back.
Note that if you pre-insert a URI through EXTRA_OUTPUT you will NOT get the URI back through data.getData(); You will have to store the pre-inserted URI in a variable and retrieve it in your onActivityResult while checking to see if imageUri is null..
Ex.
Uri imageUri = null;
if (data != null){
imageUri = data.getData();
}
if (imageUri == null && preinsertedUri != null)
imageUri = preinsertedUri;
// do stuff with imageUri

Getting a Uri from data.getData() in onActivityResult() was not a solution. This worked on one out of three test devices, and failed also on Motorola Defy emulator.
So here is what I ended up doing:
Call camera with Android.provider.MediaStore.ACTION_IMAGE_CAPTURE, no EXTRA_OUTPUT
Get the Uri of image that is stored in Gallery
Read Uri from result
If previous one fails, get the Uri of last added image from MediaStore, using code from here:
http://kevinpotgieter.wordpress.com/2011/03/30/null-intent-passed-back-on-samsung-galaxy-tab/
This seems to be working nicely with test devices, but I'm still not completely happy with this solution because I'm not totally ensured that the image added lastly is always the image user captured.

public class SampleImageActivity extends Activity {
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
private ImageView img;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
img = (ImageView)findViewById(R.id.ImageView01);
((Button) findViewById(R.id.Button01))
.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE);
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
System.out.println("Image Path : " + selectedImagePath);
img.setImageURI(selectedImageUri);
}
}
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
}

Android - Image does not display from built-in gallery

I am trying to use Android's built-in gallery. I am able to get the gallery and the albums, but whenever I want to display the image, the gallery straightaway directs me back to my app. I am unable to view the image despite it has been called.
This is my code:
public class CameraTab extends Activity implements OnClickListener{
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.camera_tab);
ImageButton cameraBtn = (ImageButton)findViewById(R.id.camera_btn);
cameraBtn.setOnClickListener(this);
ImageButton galleryBtn = (ImageButton)findViewById(R.id.gallery_btn);
galleryBtn.setOnClickListener(this);
}
public void onClick(View v) {
// TODO Auto-generated method stub
if (v == this.findViewById(R.id.camera_btn)){
/// some codes here
}
if (v == this.findViewById(R.id.gallery_btn)){
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,
"Select Picture"), SELECT_PICTURE);
}
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
}
}
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
}
Can anyone please help me? Any help would be appreciated!! Thanks!!

The problem is a misunderstanding of Intent.ACTION_GET_CONTENT intent. It's intented to be used to choose a content (in this case image/*) from the archive.
If you want to show an image, just create a new activity with an ImageView in its layout. Pass the image URI using setData.

I think the Action you want to use is Intent.ACTION_VIEW.
try this
final Intent intent = new Intent(Intent.ACTION_VIEW);
final Uri uri = <The URI to your file>;
// Uri either from file eg.
final Uri uri = Uri.fromFile(yourImageFileOnSDCard);
// or from media store like your method getPath() does but with the URI
// from http://developer.android.com/reference/android/provider/MediaStore.Images.Media.html#EXTERNAL_CONTENT_URI
intent.setDataAndType(uri, "image/*");
startActivity(intent);
The string "image/* is the mime type to be used.
Now the gallery is opened with the given picture selected. To return to your app the user has to press the back button, as usual ;)

private Context context;
public void onCreate(Bundle savedInstanceState) {
...
context = this;
}
I used a scaled Bitmap below because on some devices the images in the Gallery might be too large for being displayed on an ImageView (I had this problem before).
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
Bitmap b = new BitmapDrawable(context.getResources(),
selectedImagePath).getBitmap();
int i = (int) (b.getHeight() * (512.0 / b.getWidth()));
bitmap = Bitmap.createScaledBitmap(b, 512, i, true);
// To display the image, you need to set it to an ImageView here
ImageView img = (ImageView) findViewById(R.id.myImageView);
img.setImageBitmap(bitmap);
}
}
}

How to delete cancelled video

I am using Native Camera intent to capture video. In Nexus S If i capture a video then whether i cancel or pressed ok always the video file is getting store in default Medi URI path. But I have a requirement to delete the captured video when user clicks ok. I am using
following code to call camera
Intent videoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
startActivityForResult(videoIntent, CAPTURE_VIDEO);
and following ciode handles cancel button click event
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
try {
if (requestCode == CAPTURE_VIDEO) {if(resultCode == Activity.RESULT_CANCELED)
//pointer comes here successfully. It tells that cancel button is clicked. But I am unabelt to know how to delete the currently cancelled video
}
}
}

Ok, Its some ugly way..
First get the real path of the video from returned URI, like
private String videoPath = "";
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CAPTURE_VIDEO)
{
Uri vid = data.getData();
videoPath = getRealPathFromURI(vid);
}
}
public String getRealPathFromURI(Uri contentUri) {
String[] proj = { MediaStore.Videos.Media.DATA };
Cursor cursor = managedQuery(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Videos.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
Now you have a real path of video file then using file operation you can delete it.
File videoFile = new File(videoPath);
videoFile.deleteOnExit();
I doubt if there is available any method to delete it form android database..