Retrieve Image from SqlServer into an ImageView - java

Im using xamarin with c#. I'm trying this code for preview an image from sql server into an imageview.
ImageView imageView = FindViewById<ImageView>(Resource.Id.lk);
Button btn = FindViewById<Button>(Resource.Id.btnsd);
btn.Click += delegate
{
con.Open();
SqlDataAdapter dataAdapter = new SqlDataAdapter(new SqlCommand("SELECT map fROM deliveryadress where deliveryid=2", con));
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet);
if (dataSet.Tables[0].Rows.Count == 1)
{
System.Byte[] data = new System.Byte[0];
data = (System.Byte[])(dataSet.Tables[0].Rows[0]["map"]);
MemoryStream mem = new MemoryStream(data);
imageView = Image.FromStream(mem);
};
But i'm getting error in 'Image.FromStream(mem)'.
If i will include Android.Media then i'm getting error in FromStream that image does not contain definition for FromStream.
Also i tried another aproach but i get FactoryReturned null:
ImageView imageView = FindViewById<ImageView>(Resource.Id.lk);
Button gg = FindViewById<Button>(Resource.Id.btnsd);
gg.Click += delegate
{
string myBytes = "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
byte[] decByte3 = System.Convert.FromBase64String(myBytes);
Bitmap myIcon = Bytes2Bimap(decByte3);
Drawable myIconD = new BitmapDrawable(myIcon);
imageView.Background = myIconD;
};
}
public Bitmap Bytes2Bimap(byte[] b)
{
if (b.Length != 0)
{
return BitmapFactory.DecodeByteArray(b, 0, b.Length);
}
else
{
return null;
}
}

Related

How Can I Capture Multiple Images and send the images to next Activity and display them using CameraX [Android Studio]

Am using the latest cameraX
def camerax_version = "1.0.0-beta11"
I able to take picture and save image to External Storage in a folder using this below code
File photoFile = new File(outputDirectory, "Image_" + System.currentTimeMillis() + ".jpg");
ImageCapture.OutputFileOptions outputFileOptions = new ImageCapture.OutputFileOptions.Builder(photoFile).build();
imageCapture.takePicture(outputFileOptions, ContextCompat.getMainExecutor(getBaseContext()), new ImageCapture.OnImageSavedCallback() {
#Override
public void onImageSaved(#NonNull ImageCapture.OutputFileResults outputFileResults) {
Uri.fromFile(photoFile);
Toast.makeText(getBaseContext(), "Image Saved" + photoFile.getAbsolutePath(), Toast.LENGTH_SHORT).show();
}
#Override
public void onError(#NonNull ImageCaptureException exception) {
Toast.makeText(getBaseContext(), "Error Saving Image" + photoFile.getAbsolutePath(), Toast.LENGTH_SHORT).show();
}
});
Now the point is on how to extract the image before saving it to external storage. What I want to achieve is to capture multiple images and save it in buffer and send those images to next Activity and display them in a imageView using list or something.
Now this can be achieved using onImageCapturedCallback on imageCapture which gives me a ImageProxy which then have to convert to Byte Array. But this process apples to only small size and single image.
How can I achieve this for higher resolution and multiple images.
Below is the code I used to capture ImageProxy and set imageCapture to "YUV", Sadly it didn't work at all
imageCapture.takePicture(ContextCompat.getMainExecutor(getBaseContext()), new ImageCapture.OnImageCapturedCallback() {
#Override
public void onCaptureSuccess(#NonNull ImageProxy image) {
super.onCaptureSuccess(image);
#SuppressLint("UnsafeExperimentalUsageError") Image cimage = image.getImage();
Image.Plane[] planes = cimage.getPlanes();
ByteBuffer yBuffer = planes[0].getBuffer();
ByteBuffer uBuffer = planes[1].getBuffer();
ByteBuffer vBuffer = planes[2].getBuffer();
int ySize = yBuffer.remaining();
int uSize = uBuffer.remaining();
int vSize = vBuffer.remaining();
byte[] nv21 = new byte[ySize + uSize + vSize];
yBuffer.get(nv21,0,ySize);
vBuffer.get(nv21,ySize,vSize);
uBuffer.get(nv21,ySize + vSize,uSize);
YuvImage yuvImage = new YuvImage(nv21,ImageFormat.NV21,cimage.getWidth(),cimage.getHeight(),null);
ByteArrayOutputStream out = new ByteArrayOutputStream();
yuvImage.compressToJpeg(new Rect(0,0,yuvImage.getWidth(),yuvImage.getHeight()),100,out);
byte[] imageBytes = out.toByteArray();
Intent intent = new Intent(MainActivity.this,MainActivity2.class);
intent.putExtra("image",imageBytes);
MainActivity.this.startActivity(intent);
}
#Override
public void onError(#NonNull ImageCaptureException exception) {
super.onError(exception);
}
});
Can I add Image to ArrayList and then sent them over?
Thanks in Advance..

There are two ways that I did for my project. The code is in kotlin language.
You can understand it easily.
val image = imageProxy.image
val bitmap = Bitmap.createBitmap(image.width, image.height,
Bitmap.Config.ARGB_8888)
If it didn't work you can use a YuvtoRgbConvertor I have the full kotlin code if you want or you can write your own. then you can convert the bitmap like this.
val convertor = YuvToRgbConvertor
convertor.yuvToRgb(image , bitmap)
That is what I have done for my project.

What I suggest you is to store in an array list. and then pass an array list to other activities.
What you have to do is create an array list and store uri.tostring in the array list
String newurl=uri.toString
`arraylist.add(newurl)`
This way you can add multiple image URLs in ArrayList and display with the help of the Picasso library. No need to fetch images from the database.

The easiest way that I found was this
preview.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bitmap scaledBitmap = null;
ContextWrapper cw = new ContextWrapper(getApplicationContext());
String PATH = Environment.getExternalStorageDirectory() + "/download/";
File file = new File(PATH + "myImage.jpeg");
if (file.exists()) {
myImage.setImageDrawable(Drawable.createFromPath(file.toString()));
}
else {
myImage.setImageDrawable(Drawable.createFromPath(null));
Toast.makeText(nextPage.this, "Not found", Toast.LENGTH_LONG).show();
}
}
});
You can change the path according to your code.

First you need to close the image after capturing inside the takepicture callback image.close() will close the current image . the create ArrayList globaly and add the imageURL in the arraylist . After theat you can send the arraylist to any activity by intent.
imageCapture.takePicture(ContextCompat.getMainExecutor(getBaseContext()), new ImageCapture.OnImageCapturedCallback() {
#Override
public void onCaptureSuccess(#NonNull ImageProxy image) {
super.onCaptureSuccess(image);
#SuppressLint("UnsafeExperimentalUsageError") Image cimage = image.getImage();
Image.Plane[] planes = cimage.getPlanes();
ByteBuffer yBuffer = planes[0].getBuffer();
ByteBuffer uBuffer = planes[1].getBuffer();
ByteBuffer vBuffer = planes[2].getBuffer();
int ySize = yBuffer.remaining();
int uSize = uBuffer.remaining();
int vSize = vBuffer.remaining();
byte[] nv21 = new byte[ySize + uSize + vSize];
yBuffer.get(nv21,0,ySize);
vBuffer.get(nv21,ySize,vSize);
uBuffer.get(nv21,ySize + vSize,uSize);
YuvImage yuvImage = new YuvImage(nv21,ImageFormat.NV21,cimage.getWidth(),cimage.getHeight(),null);
ByteArrayOutputStream out = new ByteArrayOutputStream();
yuvImage.compressToJpeg(new Rect(0,0,yuvImage.getWidth(),yuvImage.getHeight()),100,out);
byte[] imageBytes = out.toByteArray();
Intent intent = new Intent(MainActivity.this,MainActivity2.class);
intent.putExtra("image",imageBytes);
MainActivity.this.startActivity(intent);
image.close();
}
#Override
public void onError(#NonNull ImageCaptureException exception) {
super.onError(exception);
}
});
I think this will help you, any doubts just refer here to my blog post
This is the function for converting the ImageProxy to bitmap
// output of the image capture image proxy to bitmap
public Bitmap imageProxyToBitmap(ImageProxy image) {
ByteBuffer buffer = image.getPlanes()[0].getBuffer();
buffer.rewind();
byte[] bytes = new byte[buffer.capacity()];
buffer.get(bytes);
byte[] clonedBytes = bytes.clone();
return BitmapFactory.decodeByteArray(clonedBytes, 0, clonedBytes.length);
}
And save the bitmap to your local storage
// used for save the files internal storage , can view in the gallery or internal storage
public String saveTOInternamMemory(Activity activity, Bitmap bitmapImage){
File myPath = getInternalStorageDir(internalStorageDir,imageFormat,Environment.DIRECTORY_PICTURES);
Log.d(TAG, "directory: " + myPath.getAbsolutePath());
FileOutputStream fos = null;
try {
fos = new FileOutputStream(myPath);
// Use the compress method on the BitMap object to write image to the OutputStream
bitmapImage.compress(Bitmap.CompressFormat.PNG, 100, fos);
Log.d(TAG, "bit exception: Success" );
} catch (Exception e) {
Log.d(TAG, "bit exception: " + e.getMessage());
e.printStackTrace();
} finally {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
Log.d(TAG, "io exce: " + e.getMessage());
}
}
Log.d(TAG, "absolute path " + myPath.getAbsolutePath());
return myPath.getAbsolutePath();
}

Android/Java: How to add icon in my bottom bar dynamically

I would like to add icons in my bottom bar dynamically by taking it in a file path with a folder containing all the icons images (to avoid compiling the app each time). I found this ticket but I don't really understand how to adapt it...
#Override
public void run() {
Menu menu = bottomNavigation.getMenu();
if (menu.size() == 0) {
MenuMap = new ArrayMap<String, Integer>();
for (int i = 0; i < myitems_detail.length(); i++) {
try {
JSONObject obj = myitems_detail.getJSONObject(i);
if (obj.getString("ICONE") != null) {
int imgID = mContext.getResources().getIdentifier(obj.getString("ICONE"), "drawable", mContext.getPackageName());
MenuItem myItem = menu.add(0, obj.getInt("PAGE_ORDER"), 0, obj.getString("MENU_NAME"))
.setIcon(imgID);
MenuMap.put(obj.getString("MENU_NAME"), obj.getInt("id"));
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
Any ideas?
Thanks in advance.

I Think This Works For You
But This Case You Have To Enter Full Path Of File Also Use Any Web Url Of It
Uri filePath = null;
Pass Here Url
Or
filePath = Uri.parse("String file location or url");
Bitmap myBitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), filePath);
myMenuItem.setIcon(new BitmapDrawable(getResources(), myBitmap));

Loading smaller version of an image for performance Android

I have an image (1.84MB) to load and I want to load a smaller version of it to gain time, I also don't want to store a smaller version of it. For info, these files are located in a removable SD card, and I need to load a lot, thats why I want to optimize it, as it takes too much time for the moment...
I red the load large bitmaps documentation. I previously used Glide to load the full image.
After some test, I get this statistics:
Glide load (1.84MB): 244'361'667 ns
Bitmap load (scale 1): 370'811'511 ns
Bitmap load (scale 4): 324'403'386 ns
Bitmap load (scale 8): 269'223'073 ns
Thumbnail load: 245'250'729 ns
Which means I get a slightly longer time with Bitmap while loading a 8 times smaller image, and I don't get why.
Here is my code:
load with glide:
private void loadGlide(Car c) {
DocumentFile makerDir = contentDirectory.findFile(getMakerById(c.getMakerId()).getName());
DocumentFile carPhoto = makerDir.findFile(c.getFilename());
if(carPhoto == null) {
Log.d("test", c.getFilename() + " problem");
} else {
Log.d("test", carPhoto.exists() + "");
}
ImageView img = new ImageView(this);
img.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
goToEdit(c.getId());
}
});
// standard loading
Glide.with(img.getContext()).load(carPhoto.getUri()).into(img);
resultList.addView(img);
}
load with bitmap:
private void scaledLoad(Car c, int scale) {
DocumentFile makerDir = contentDirectory.findFile(getMakerById(c.getMakerId()).getName());
DocumentFile carPhoto = makerDir.findFile(c.getFilename());
Bitmap b = null;
//Decode image size
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = scale;
// convert DocumentFile to File
File image = new File("image_path");
FileInputStream fis = null;
try {
fis = new FileInputStream(image);
b = BitmapFactory.decodeStream(fis, null, options);
fis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
if(b != null) {
ImageView img = new ImageView(this);
img.setImageBitmap(b);
resultList.addView(img);
}
}
I also tried to load thumbnails:
private void loadThumbnail() {
Bitmap ThumbImage = ThumbnailUtils.extractThumbnail(BitmapFactory.decodeFile("filepath"),
816, 612);
ImageView img = new ImageView(this);
img.setImageBitmap(ThumbImage);
resultList.addView(img);
}
And here is the test code if you want:
long t0 = System.nanoTime();
scaledLoad(c, 1);
// or
loadGlide(c);
long t1 = System.nanoTime();
t1 = (t1-t0);
Log.d("test", "t1:" + t1);
If you can answer me or give me any other alternative to load underscaled images from SD card FAST, you are welcome. Thanks in advance.

If you are using Glide you can use the function "override(width,height)" to load resized image into the imageView.
This blogs explains how to do it : https://futurestud.io/tutorials/glide-image-resizing-scaling#imageresizingwithoverridexy

Android how to capture shadow in screenshots

How to capture shadow or elevation of views in the layout of the activity in a screenshots.This code take a screenshot for the view but it's not showing the shadow of the viewsenter image description here
View screenView = parentMain;
screenView.buildDrawingCache();
screenView.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(screenView.getWidth() , screenView.getHeight(), Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(bitmap);
screenView.layout(0, 0, screenView.getLayoutParams().width, screenView.getLayoutParams().height);
screenView.draw(c);
screenView.setDrawingCacheEnabled(false);
fakeImgView.setImageBitmap(bitmap);
Even if we add the harware acceleration at activity level it does not provides any effect.
Appreciate any alternative approaches
the result

Try this.
CardView card = (CardView) findViewById(R.id.card);
Now just pass the card to captureScreenShot(). It returns the bitmap and save that bitmap saveImage().
You can pass any view Like RelativeLayout, LinearLayout etc any view can pass to captureScreenShot().
// Function which capture Screenshot
public Bitmap captureScreenShot(View view) {
/*
* Creating a Bitmap of view with ARGB_4444.
* */
Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_4444);
Canvas canvas = new Canvas(bitmap);
Drawable backgroundDrawable = view.getBackground();
if (backgroundDrawable != null) {
backgroundDrawable.draw(canvas);
} else {
canvas.drawColor(Color.parseColor("#80000000"));
}
view.draw(canvas);
return bitmap;
}
// Function which Save image.
private void saveImage(Bitmap bitmap) {
File file = // Your Storage directory name + your filename
if (file == null) {
return;
}
try {
FileOutputStream fos = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
Finally call this function like this.
saveImage(captureScreenShot(card));
Now set Your Image like this.
File file = new File(“yourImageFilePath”);
if(file.exists())
{
yourImageView.setImageURI(Uri.fromFile(file));
}
Note : If setImageURI() not working then you can use below code.
File file = new File(“yourImageFilePath”);
if(file.exists())
{
Bitmap bitmap = BitmapFactory.decodeFile(file.toString());
yourImageView.setImageBitmap(bitmap);
}

How to merge two imageview into one image in Android?

I'm creating an application for placing one image view on the another image view and made to single image and save into SD card. I run the application it creates image and save to SD card but this image is blank. Both images are not showing on one single image which is save in the SD card.
Here is my code.
#SuppressWarnings("deprecation")
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ImageView image2 = (ImageView) findViewById(R.id.ImageViewTwo);
final ImageView image = (ImageView) findViewById(R.id.ImageViewOne);
mTempDir = Environment.getExternalStorageDirectory()+"/"+"TestTemp";
File mtempFile = new File(mTempDir);
if(!mtempFile.exists())
{
mtempFile.mkdir();
}
mSaveImageName = "Test.png";
mBackGround = Bitmap.createBitmap(100 , 100 ,Bitmap.Config.ARGB_8888);
image2.buildDrawingCache();
mBackImage = image2.getDrawingCache();
mBackImage = Bitmap.createBitmap(100 , 100 ,Bitmap.Config.ARGB_8888);
image.buildDrawingCache();
mTopImage = image.getDrawingCache();
mTopImage = Bitmap.createBitmap(100 , 100 , Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBackGround);
//mCanvas.drawBitmap(mBackImage, (mCanvas.getWidth() / 2), 0, null);
mCanvas.drawBitmap(mBackImage ,0f , 0f , null);
mCanvas.drawBitmap(mTopImage, 12f , 12f , null);
try
{
mBitmapDrawable = new BitmapDrawable(mBackGround);
Bitmap mNewSaving = mBitmapDrawable .getBitmap();
String ftoSave = mTempDir + mSaveImageName;
File mFile = new File(ftoSave);
mFileOutputStream = new FileOutputStream(mFile);
mNewSaving.compress(CompressFormat.PNG, 95 , mFileOutputStream);
mFileOutputStream.flush();
mFileOutputStream.close();
}
catch(FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.i(TAG, "Image Created");
}

You have a few excess lines:
image2.buildDrawingCache();
mBackImage = image2.getDrawingCache();
// delete next line
mBackImage = Bitmap.createBitmap(100 , 100 ,Bitmap.Config.ARGB_8888);
image.buildDrawingCache();
mTopImage = image.getDrawingCache();
// delete next line
mTopImage = Bitmap.createBitmap(100 , 100 , Bitmap.Config.ARGB_8888);

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