Develop Reference

Scrollview to PDF View giving blur in Android

I have long scrollview almost 50+ fields.
I'm converting that scrollview to pdf view. pdf also creating all done.
But pdf file showing data is blur (too blur).
With some merging, I provided some reference image (I mean output image).
output image
My code:
private void takeScreenShot() {
try {
//here getScroll is my scrollview id
View u = ((Activity) mContext).findViewById(R.id.getScroll);
ScrollView z = (ScrollView) ((Activity) mContext).findViewById(R.id.getScroll);
int totalHeight = z.getChildAt(0).getHeight();
int totalWidth = z.getChildAt(0).getWidth();
Bitmap bitmap = getBitmapFromView(u,totalHeight,totalWidth);
Image image;
//Save bitmap
String path = Environment.getExternalStorageDirectory()+"/Folder/";
String fileName = "report1.pdf";
File dir = new File(path);
if (!dir.exists())
dir.mkdirs();
Log.v("PDFCreator", "PDF Path: " + path);
File myPath = new File(path, fileName);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 10, stream);
image = Image.getInstance(stream.toByteArray());
image.setAbsolutePosition(0, 0);
Document document = new Document(image);
PdfWriter.getInstance(document, new FileOutputStream(myPath));
document.open();
document.add(image);
document.close();
} catch (Exception i1) {
i1.printStackTrace();
}
}
Any help?

Try this code:
View u = ((Activity) mContext).findViewById(R.id.getScroll);
u.setDrawingCacheEnabled(true);
u.buildDrawingCache();
Bitmap bitmap = Bitmap.createBitmap(u.getDrawingCache());
bitmap.setHasAlpha(true); //important for PNG
---------------DO SAVE WORK-----------------
v1.setDrawingCacheEnabled(false);
And at
bitmap.compress(Bitmap.CompressFormat.JPEG, 10, stream);
change 10 to 90 or 100. it is Image Quality.
Or just change in your code to higher quality.
Try another solution:
ScrollView v= (ScrollView)findViewById(R.id.getScroll);
int height = v.getChildAt(0).getHeight()
int width = v.getWidth()
Bitmap b = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
v.layout(0, 0, v.getLayoutParams().width, v.getLayoutParams().height);
v.draw(c);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);

Take a screen shot using this code and
ScrollView iv = (ScrollView) findViewById(R.id.scrollView);
Bitmap bitmap = Bitmap.createBitmap(
iv.getChildAt(0).getWidth(),
iv.getChildAt(0).getHeight(),
Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(bitmap);
c.drawColor(Color.WHITE);
iv.getChildAt(0).draw(c);
// Do whatever you want with your bitmap
saveBitmap(bitmap);
and save the bitmap as a image
public void saveBitmap(Bitmap bitmap) {
File imagePath = new File(Environment.getExternalStorageDirectory() + "/screenshot.png");
FileOutputStream fos;
try {
fos = new FileOutputStream(imagePath);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
Log.e("GREC", e.getMessage(), e);
} catch (IOException e) {
Log.e("GREC", e.getMessage(), e);
}}

I might be late but anyway. Use png format instead, increase the quality to 100 and replace
View u = ((Activity) mContext).findViewById(R.id.getScroll);
with
View u = ((Activity) mContext).findViewById(R.id.yourfirstscrollviewchild);
Thatll do the trick.

Images loaded from URI have black Background

I am trying to load PNG which has transparent background.
mImageCursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
ImageThumbnailAdapter.IMAGE_PROJECTION, null, null,
MediaStore.Images.ImageColumns.DISPLAY_NAME);
Projection:
public static final int IMAGE_ID_COLUMN = 0;
public static final int IMAGE_NAME_COLUMN = 1;
Method for loading:
private static Bitmap loadThumbnail(ContentResolver cr, Uri uri) {
return MediaStore.Images.Thumbnails.getThumbnail(
cr, ContentUris.parseId(uri), MediaStore.Images.Thumbnails.MINI_KIND, sBitmapOptions);
}
Setting in View:
Bitmap bitmapOld = loadThumbnail(mArgs.mContentResolver, mArgs.mUri);
ByteArrayOutputStream out = new ByteArrayOutputStream();
bitmapOld.compress(Bitmap.CompressFormat.PNG, 100, out );
final Bitmap bitmap = BitmapFactory.decodeStream(new ByteArrayInputStream(out.toByteArray()));
Bitmap mutableBitmap = bitmapOld.copy(Bitmap.Config.ARGB_8888, true);
final Canvas canvas = new Canvas(mutableBitmap);
// Canvas c = new Canvas(bitmap);
canvas.drawColor(0, PorterDuff.Mode.CLEAR);
//This drawabl is coming black in Background.
final Bitmap bmpfinal = mutableBitmap;

use this code
return MediaStore.Images.Media.getBitmap(context.getContentResolver‌​(), uri);
i hope it may solve your problem...

Picasso will help you out to resolve your issue, go through provided link and integrate picasso.

How to save an image attached to the image view?

I am using a Glide library for loading remote URLs into ImageView's.
I want to save the image from this ImageView to gallery. (I don't want to make another network call again to download the same image).
How we can achieve this?

Glide.with(yourApplicationContext))
.load(youUrl)
.asBitmap()
.into(new SimpleTarget<Bitmap>(myWidth, myHeight) {
#Override
public void onResourceReady(Bitmap bitmap, GlideAnimation anim) {
//set bitmap to imageview and save
}
};

BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
Bitmap bitmap = drawable.getBitmap();
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, 200, 200, false);
scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 60, byteArrayOutputStream);
String fileName = "image.jpeg";
File file = new File("your_directory_path/"
+ fileName);
try {
file.createNewFile();
// write the bytes in file
FileOutputStream fileOutputStream = new FileOutputStream(file);
fileOutputStream.write(byteArrayOutputStream.toByteArray());
// remember close the FileOutput stream
fileOutputStream.close();
ToastHelper.show(getString(R.string.qr_code_save));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
ToastHelper.show("Error");
}
Note : If your drawble is not always an instanceof BitmapDrawable
Bitmap bitmap;
if (mImageView.getDrawable() instanceof BitmapDrawable) {
bitmap = ((BitmapDrawable) mImageView.getDrawable()).getBitmap();
} else {
Drawable d = mImageView.getDrawable();
bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
}
Try this

I haven't try this way. But i think this match your problem. Put this code on onBindViewHolder of your RecyclerView adapter.
Glide.with(yourApplicationContext))
.load(youUrl)
.asBitmap()
.into(new SimpleTarget<Bitmap>(myWidth, myHeight) {
#Override
public void onResourceReady(Bitmap bitmap, GlideAnimation anim) {
//Set bitmap to your ImageView
imageView.setImageBitmap(bitmap);
viewHolder.saveButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
//Save bitmap to gallery
saveToGallery(bitmap);
}
});
}
};

This might help you
public void saveBitmap(ImageView imageView) {
Bitmap bitmap = ((GlideBitmapDrawable) imageView.getDrawable()).getBitmap();
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/My Images");
myDir.mkdirs();
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = "Image-" + n + ".jpg";
File file = new File(myDir, fname);
if (file.exists()) file.delete();
try {
FileOutputStream out = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.flush();
out.close();
} catch (Exception ex) {
//ignore
}
}

Save part of Activity / Fragment as Image

I am trying to save part of my Activity, without Toolbar and Statusbar. The code that i have right now, saves the whole screen. Please refer to the image below.
Code that i have right now:
llIDCardRootView = (LinearLayout) view.findViewById(R.id.ll_id_card_root_view);
llIDCardContainer = (LinearLayout) llIDCardRootView.findViewById(R.id.ll_id_card_view);
private void createBitmap() {
Log.d(Const.DEBUG, "Creating Bitmap");
Bitmap bmp;
//View v = llIDCardContainer.getRootView();
//View v = activity.getWindow().getDecorView().findViewById(android.R.id.content);
//View v = activity.findViewById(R.id.ll_id_card_root_view);
ViewGroup v = (ViewGroup) ((ViewGroup) activity
.findViewById(android.R.id.content)).getChildAt(0);
v.setDrawingCacheEnabled(true);
// v.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
// View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
// v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
// v.buildDrawingCache(true);
bmp = Bitmap.createBitmap(v.getDrawingCache());
File directory = new File(Environment.getExternalStorageDirectory()
+ File.separator);
File file = new File(directory, FILE_NAME);
try {
FileOutputStream out = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
v.destroyDrawingCache();
v.setDrawingCacheEnabled(false);
}
The image that is being saved..
How can i just save the part that i need from the fragment?

Use function below to save any view to image file. If you need to save in Fragment, call below function in fragment.
public static Bitmap getBitmapFromView(View view) {
//Define a bitmap with the same size as the view
Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
//Bind a canvas to it
Canvas canvas = new Canvas(returnedBitmap);
//Get the view's background
Drawable bgDrawable =view.getBackground();
if (bgDrawable!=null)
//has background drawable, then draw it on the canvas
bgDrawable.draw(canvas);
else
//does not have background drawable, then draw white background on the canvas
canvas.drawColor(Color.WHITE);
// draw the view on the canvas
view.draw(canvas);
//return the bitmap
return returnedBitmap;
}

Use this
container_layout.setDrawingCacheEnabled(true);
container_layout.buildDrawingCache(true);
Bitmap saveBm = Bitmap.createBitmap(container_layout.getDrawingCache());
container_layout.setDrawingCacheEnabled(false);
You can now save the saveBm as file

you have to make a separate view for save this as image and then you can pick screenshot of that view like:
LinearLayout content = findViewById(R.id.rlid);
content.setDrawingCacheEnabled(true);
Bitmap bitmap = content.getDrawingCache();
File file,f;
if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
{
file =new File(android.os.Environment.getExternalStorageDirectory(),"TTImages_cache");
if(!file.exists())
{
file.mkdirs();
}
f = new File(file.getAbsolutePath()+file.seperator+ "filename"+".png");
}
FileOutputStream ostream = new FileOutputStream(f);
bitmap.compress(CompressFormat.PNG, 10, ostream);
ostream.close();
}
catch (Exception e){
e.printStackTrace();
}
and not to forgot add permission in manifest
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Android App Creates Incomplete Images

I'm developing an app that combines two bitmaps, where one bitmap is from drawable, and the other is taken from a camera snapshot. However the pictures always end up incomplete. Half the picture is fine, but the other half is gray. Is there a way to make sure that the file is completed before the app moves on with the code? Below is the code that works with writing and saving the file. Thanks
Combine.java
protected void createPostcard(byte[] data, File pictureFile, CameraActivity app, Button shareButton,
Button newButton) {
try {
Bitmap photo = BitmapFactory.decodeByteArray(data, 0, data.length);
Bitmap splash = Bitmap.createScaledBitmap(BitmapFactory.decodeResource(app.getResources(),
R.drawable.wishsplash), photo.getWidth(), photo.getHeight(), false);
Bitmap postcard = Bitmap.createBitmap(photo.getWidth(), photo.getHeight(), photo.getConfig());
Canvas canvas = new Canvas(postcard);
canvas.drawBitmap(photo, new Matrix(), null);
canvas.drawBitmap(splash, 0, 0, null);
savePostcard(postcard, pictureFile, app, shareButton, newButton);
} catch (Exception e) {
}//end catch
}//end createPostcard
/**
* Saves the postcard
*/
private void savePostcard(Bitmap postcard, File pictureFile, CameraActivity app, Button shareButton,
Button newButton) {
BitmapDrawable mBitmapDrawable = new BitmapDrawable(postcard);
Bitmap mNewSaving = mBitmapDrawable.getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
mNewSaving.compress(CompressFormat.JPEG, 100, stream);
byte[] byteArray = stream.toByteArray();
save(byteArray, pictureFile, app);
shareButton.setBackgroundResource(R.drawable.sharebutton);
newButton.setBackgroundResource(R.drawable.newbutton);
shareButton.setEnabled(true);
newButton.setEnabled(true);
}//end savePostcard
/**
* Check if external is available. If not, postcard will be saved in internal.
* #retun
*/
private void save(byte[] data, File pictureFile, CameraActivity app) {
try {
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
FileOutputStream fos = new FileOutputStream(pictureFile);
imageUri = Uri.fromFile(pictureFile);
fos.write(data);
imageFile = pictureFile;
fos.close();
app.sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
} else {
File cache = app.getCacheDir();
File internalPic = new File(cache, pictureFile.getName());
FileOutputStream fos = new FileOutputStream(internalPic);
imageUri = Uri.fromFile(internalPic);
imageFile = internalPic;
fos.write(data);
fos.close();
}//end else
} catch (FileNotFoundException e) {
System.out.println("FILENOTFOUND");
} catch (IOException e) {
System.out.println("IOEXCEPTION");
}//end catch
}//end getStorage

try this code
public Bitmap PutoverBmp(Bitmap all, Bitmap scaledBorder) {
Paint paint = new Paint();
final int width = bmp.getWidth(); // bmp is your main Bitmap
final int height = bmp.getHeight();
patt = Bitmap.createScaledBitmap(bmp, width, height, true);
Bitmap mutableBitmap = patt.copy(Bitmap.Config.ARGB_8888, true);
Canvas canvas = new Canvas(mutableBitmap);
scaledBorder = Bitmap.createScaledBitmap(border, width, height, true);
paint.setAlpha(100);
canvas.drawBitmap(scaledBorder, 0, 0, paint);
return mutableBitmap;
}
simply call this Bitmap combine = (bmp , yourOtherBitmap);