Develop Reference

ImageView is not showing captured Image using Camera in android

I am trying to choose an image for registration. When clicking the ImageView, the user will be given a choice between taking a picture or choosing from his/her gallery. When the user chooses the gallery option, it will display the selected image. When the user chooses the camera option, the ImageView does not display the image. Below is my code for the OnActivityResult
protected void onActivityResult(int requestCode, int resultCode, Intent imgdata) {
super.onActivityResult(requestCode, resultCode, imgdata);
if (requestCode == SELECT_IMAGE && resultCode == RESULT_OK && imgdata != null) {
selectedimage = imgdata.getData();
try {
InputStream inputStream = getContentResolver().openInputStream(selectedimage);
Bitmap yourselectedimage = BitmapFactory.decodeStream(inputStream);
imgchild.setImageBitmap(yourselectedimage);
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Hello", Toast.LENGTH_SHORT).show();
}
}
if (requestCode == CAPTURE_IMAGE && resultCode == RESULT_OK && imgdata != null) {
camImg =(Bitmap) imgdata.getExtras().get("img");
try {
imgchild.setImageBitmap(camImg);
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Hello", Toast.LENGTH_SHORT).show();
}
}
}
The ImageView should display the taken picture from the camera.

I think it should be like this
Bitmap imageBitmap = (Bitmap) extras.get("data");
mImageView.setImageBitmap(imageBitmap);

By reading your code, I think it's highly likely that camImg is null because the way you extract bitmap from Intent is incorrect.
Bitmap implements Parcelable, so you need to extract it like this:
camImg = (Bitmap) imgdata.getParcelableExtra("img");

I hope this will work for you.
Set image like this
Bitmap photo = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(photo);
// CALL THIS METHOD TO GET THE ACTUAL PATH
Uri tempUri = getImageUri(getApplicationContext(), photo);
File finalFile = new File(getRealPathFromURI(tempUri));
Log.e("path", finalFile.getAbsolutePath());
To get image path where it is stored
public String getRealPathFromURI(Uri uri) {
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
return cursor.getString(idx);
}

I faced same issue with Android Marshmallow, in my case, it is happening due to large bitmap so I figured out with the following code by resizing bitmap
final int maxSize = 960;
int outWidth;
int outHeight;
int inWidth = CameraActivity.bitmap.getWidth();
int inHeight = CameraActivity.bitmap.getHeight();
if(inWidth > inHeight){
outWidth = maxSize;
outHeight = (inHeight * maxSize) / inWidth;
} else {
outHeight = maxSize;
outWidth = (inWidth * maxSize) / inHeight;
}
iv_captured_image.setImageBitmap(Bitmap.createScaledBitmap(CameraActivity.bitmap, outWidth, outHeight, false));

How do I get thumbnail of a video in android

I want some help in creating thumbnail of a video being recorded from my android phone and I got this code from this Link, and I modified this part of the code to generate the thumbnail but somehow the thumbnail is not being generated, so any help will be appreciated.
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK && requestCode == VIDEO_CAPTURED) {
videoFileUri = data.getData();
if (videoFileUri != null) {
Bitmap image= ThumbnailUtils.createVideoThumbnail(videoFileUri.toString(),MODE_APPEND);
ImageView imageView=(ImageView)findViewById(R.id.image);
imageView.setImageBitmap(image);
}
playVideoButton.setEnabled(true);
}
}

You can use glide. its automatically set thumb image of video.
Glide is also able to display the thumbnail of videos, as long as they're stored on the phone. Let's assume you get the file path by letting the user select a video: Based on this document https://futurestud.io/tutorials/glide-displaying-gifs-and-videos
String filePath = "/storage/emulated/0/Pictures/example_video.mp4";
Glide
.with(context)
.asBitmap()
.load(Uri.fromFile(new File(filePath)))
.into(imageViewGifAsBitmap);

Here is the complete tested working solution:
Try it.
if (videoFileUri != null) {
Bitmap bitmapThumb = null;
try {
bitmapThumb = ThumbnailUtils.createVideoThumbnail(videoFileUri.toString(),
MediaStore.Video.Thumbnails.MINI_KIND);// MINI_KIND, size: 512 x 384 thumbnail | MICRO_KIND, size: 96 x 96 thumbnail
ImageView imageView = (ImageView) findViewById(R.id.image);
// imageView.setImageBitmap(bitmapThumb);
Uri uri = getImageUri(context, bitmapThumb);
Picasso.with(context)
.load(uri)
.placeholder(R.drawable.ic_imagedefault)
.error(R.drawable.ic_imagedefault)
.resize(350, 200)//as per need.
.centerCrop()
.into(imageView);
} catch (Exception e) {
e.printStackTrace();
} finally {
bitmapThumb = null;
}
}
}
Here is the static method for getImageUri :
public static Uri getImageUri(Context inContext, Bitmap inImage) {
try {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.PNG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
} catch (Exception e) {
e.printStackTrace();
return Uri.parse("");
}
}

Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(filePath, MediaStore.Video.Thumbnails.MICRO_KIND);
This works fine for me.
https://developer.android.com/reference/android/media/ThumbnailUtils

Uri uri = getImageUri(context, bitmapThumb);
Glide.with(getContext()).
load(uri).
thumbnail(0.1f).
into(imageView);

Imageuploding on okhttp3 or Retrofit2, how can i get this uri?

I want to make service for imageuploading using retrofit2 or Okhttp3,
CODE :
public class GreenFragment extends Fragment {
#I omitted onCreateView that is for checking permission and trigger startGallry()
private void startGallery() {
Intent cameraIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
cameraIntent.setType("image/*");
if (cameraIntent.resolveActivity(getActivity().getPackageManager()) != null) {
startActivityForResult(cameraIntent, 1000);
}
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if(resultCode == Activity.RESULT_OK) {
if(requestCode == 1000){
Uri returnUri = data.getData();
Bitmap bitmapImage = null;
try {
bitmapImage = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), returnUri);
} catch (IOException e) {
e.printStackTrace();
}
mImageview.setImageBitmap(bitmapImage);
}
}
Uri returnUri;
returnUri = data.getData(); #This is what i want to control
}
#OnClick(R.id.btn_post)
public void onClick(View view) {
#Here is what i ask, How can i use retrunUri on here?
#On Android studio, retrunUri's font color is red, and not works.
Bitmap bitmap = getBitmapFromUri(returnUri);
File imageFile = createFileFromBitmap(bitmap);
RequestBody body = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("name", makeImageFileName() , RequestBody(MediaType.parse("image/png"), imageFile))
.build();
PostApiService.uploadFile(body);
}
# getBitmapFromUri(Uri uri) is for get Bitmap from uri, I omitted opts(options)
private Bitmap getBitmapFromUri(Uri uri) throws IOException {
ParcelFileDescriptor parcelFileDescriptor =
getActivity().getContentResolver().openFileDescriptor(uri, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
Bitmap resizedBitmap = BitmapFactory.decodeFileDescriptor(fileDescriptor, null, opts);
parcelFileDescriptor.close();
return resizedBitmap;
}
#createFileFromBitmap(Bitmap bitmap) is for making File from Bitmap
private File createFileFromBitmap(Bitmap bitmap) throws IOException {
File newFile = new File(getActivity().getFilesDir(), makeImageFileName());
FileOutputStream fileOutputStream = new FileOutputStream(newFile);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fileOutputStream);
fileOutputStream.close();
return newFile;
}
#ImageFileName() is for setting filename
private String makeImageFileName() {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd_hhmmss");
Date date = new Date();
String strDate = simpleDateFormat.format(date);
return strDate + ".png";
}
What I want to know is how to use returnUri which is from onActivityResult, in public void onClick(View view)?
I want to use returnUri in public void onClick(View view).
I used an example which is from youtube, but it's too hard for me to understand perfectly,
So please help me.

modify the onActiivtyResult then handle the Exception in OnClick
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if(resultCode == Activity.RESULT_OK) {
if(requestCode == 1000){
Uri returnUri = data.getData();
Bitmap bitmapImage = null;
try {
bitmapImage = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), returnUri);
} catch (IOException e) {
e.printStackTrace();
}
mImageview.setImageBitmap(bitmapImage);
}
}
returnUri = data.getData(); //This is what i want to control
}
Uri returnUri;

How to avoid out of memory errors in android when loading big bitmaps?

In android, I open a bitmap from the image picker, and load it into a imageview. If the user selects a big image, the app will crash. I tried try/catch, but it didn't work.
Is there a way to check the file size before loading it into a bitmap?
This is the code:
This is the return function from when I choose an image
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
ImageUploadHandler.handleResult(this, data);
}
}
this is from another file
public void handleResult(Context context, Intent data) {
Bitmap bitmap = null;
try {
bitmap = MyImage.GetBitmapFromPath(context, data.getData());
ByteArrayOutputStream out = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.PNG, 100, out);
int size = out.size();
isReady = size <= IMAGE_THRESHOLD;
} catch (Exception e) {
isReady = false;
Log.d("Image Error", e.getMessage());
}
if (isReady) {
DialogImageView.setImageBitmap(bitmap);
DialogStatus.setText(context.getString(R.string.image_ok));
} else {
DialogImageView.setImageDrawable(null);
DialogStatus.setText(context.getString(R.string.too_big_image));
}
}
another file
public static Bitmap GetBitmapFromPath(Context context, Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = context.getContentResolver().query(uri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String filePath = cursor.getString(column_index);
cursor.close();
Bitmap bitmap = BitmapFactory.decodeFile(filePath);
return bitmap;
}
This line
bitmap = MyImage.GetBitmapFromPath(context, data.getData());
from the handleResult function, causes a outofmemory error when a user loads a big image.
How can I fix this?
Thanks.

try code similar to this, you just need to get a File object from the Bitmap you intend to check:
File file = new File(uri); // or new File(filePath);
file.length() // should give you a file size in bytes

Why is getBitmap method not working?

I'm a noob to android and i want to set an ImageButton image with a file form the SDcard. However, getBitmap isn't creating a working bitmap. When i set the ImageButton with the bitmap that has just been created, the dimensions of the imageButton change but the image doesn't appear. This is really frustrating and Any help resolving this is greatly appreciated.
MYCODE
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CODE:
// If the file selection was successful
if (resultCode == RESULT_OK) {
if (data != null) {
// Get the URI of the selected file
final Uri uri = data.getData();
try {
// Create a file instance from the URI
final File file = FileUtils.getFile(uri);
Toast.makeText(Profile_Barber.this,"File Selected: "+file.getAbsolutePath(), Toast.LENGTH_LONG).show();
Log.e("URI", uri.toString());//Returns: content://media/external/images/media/1834
Bitmap bmp = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri);
if(bmp==null){
Log.e("BMP NULL", "This that bullshit!");
}else{
Log.e("BMP NOT NULL", bmp.toString()); //Returns: BMP NOT NULL android.graphics.Bitmap#4152b5a0
profilepic.setImageBitmap(bmp);
}
} catch (Exception e) {
Log.e("FileSelectorTestActivity", "File select error", e);
e.printStackTrace();
}
}
}
break;
}
super.onActivityResult(requestCode, resultCode, data);
}

How about using this to decode image?
Uri contentURI = Uri.parse(data.getDataString());
ContentResolver cr = getContentResolver();
InputStream in = cr.openInputStream(contentURI);
Bitmap pic = BitmapFactory.decodeStream(in,null,null);