I have created a custom listview that is handled by a custom adapter. Each item in this list displays an image and a share button. The images are loaded from external sources with ion. This works fine.
Now I want to share the image when the user clicks on the button. While I'm able to share text, etc. I'm not able to share these external images, even after implementing this code: Sharing Remote Images
Two things:
I'm new to android so I might be using the setTag/getTag completely wrong
if (drawable instanceof BitmapDrawable) is false, but I don't know why or how to fix this
Any help or suggestion is greatly appreciated!
This is the code from my adapter:
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if(convertView == null) {
//brand new
convertView = LayoutInflater.from(mContext).inflate(R.layout.list_item, null);
holder = new ViewHolder();
holder.contentImageView = (ImageView) convertView.findViewById(R.id.contentImageView);
holder.contentLabel = (TextView) convertView.findViewById(R.id.contentLabel);
holder.contentShareButton = (Button) convertView.findViewById(R.id.contentShareButton);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
Content content = mContents[position];
Ion.with(mContext)
.load(content.getSrc()) //the external image url
.intoImageView(holder.contentImageView);
holder.contentLabel.setText(content.getTitle());
holder.contentShareButton.setTag(holder.contentImageView);
holder.contentShareButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ImageView ivImage = (ImageView) v.getTag();
//ImageView ivImage = (ImageView) findViewById(R.id.ivResult);
// Get access to the URI for the bitmap
Uri bmpUri = getLocalBitmapUri(ivImage);
if (bmpUri != null) {
// Construct a ShareIntent with link to image
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, bmpUri);
shareIntent.setType("image/*");
// Launch sharing dialog for image
mContext.startActivity(Intent.createChooser(shareIntent, "Share Image"));
} else {
Log.i("test", "Sharing failed, handler error.");
}
}
});
return convertView;
}
// Returns the URI path to the Bitmap displayed in specified ImageView
public Uri getLocalBitmapUri(ImageView imageView) {
// Extract Bitmap from ImageView drawable
Drawable drawable = imageView.getDrawable();
Bitmap bmp = null;
if (drawable instanceof BitmapDrawable){
bmp = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
} else {
Log.i("test", "is null");
return null;
}
// Store image to default external storage directory
Uri bmpUri = null;
try {
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS), "share_image_" + System.currentTimeMillis() + ".png");
file.getParentFile().mkdirs();
FileOutputStream out = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
out.close();
bmpUri = Uri.fromFile(file);
} catch (IOException e) {
e.printStackTrace();
}
return bmpUri;
}
Adding these four lines to the getLocalBitmapUri-function got it working for me:
bmp = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmp);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
And here is the complete function with the updated code:
// Returns the URI path to the Bitmap displayed in specified ImageView
public Uri getLocalBitmapUri(ImageView imageView) {
// Extract Bitmap from ImageView drawable
Drawable drawable = imageView.getDrawable();
Bitmap bmp = null;
if (drawable instanceof BitmapDrawable){
bmp = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
} else {
bmp = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmp);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
}
// Store image to default external storage directory
Uri bmpUri = null;
try {
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS), "share_image_" + System.currentTimeMillis() + ".png");
file.getParentFile().mkdirs();
FileOutputStream out = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
out.close();
bmpUri = Uri.fromFile(file);
} catch (IOException e) {
e.printStackTrace();
}
return bmpUri;
}
Related
Basically, I want to take a screenshot of an entire scrollView. I've tried so many methods, but couldn't find the perfect one.
I've tried following:
public void takeScreenShot() {
mbitmap = getBitmapOFRootView();
createImage(mbitmap);
}
public void createImage(Bitmap bmp) {
String path = Environment.getExternalStorageDirectory().toString() + "/screenshot.jpg";
try {
FileOutputStream outputStream = new FileOutputStream(new File(path));
bmp.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
outputStream.flush();
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public Bitmap getBitmapOFRootView() {
mScrollView.setDrawingCacheEnabled(true);
int totalHeight = mScrollView.getChildAt(0).getHeight();
int totalWidth = mScrollView.getChildAt(0).getWidth();
mScrollView.layout(0,0, totalWidth, totalHeight);
mScrollView.buildDrawingCache(true);
Bitmap b = Bitmap.createBitmap(mScrollView.getDrawingCache());
mScrollView.setDrawingCacheEnabled(false);
return b;
}
This method almost works, but it's just showing me only 2 views and a button, other than that whole screen is black:
my xml contains so many views, it's view hierarchy is something like this:
<ScrollView>
<ConstraintLayout>
<Views>
....
<Views>
</ConstraintLayout>
</ScrollView>
I've referred so many StackOverflow post, but it didn't work.
So can anybody help me with it?
Update:
Finally found a solution for it. So, it was an issue with the background, solved it by drawing canvas over it. Like below:
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Drawable bgDrawable = view.getBackground();
if (bgDrawable != null)
bgDrawable.draw(canvas);
else
canvas.drawColor(Color.WHITE);
view.draw(canvas);
return bitmap;
You should be using a canvas for the same
public static Bitmap saveBitmapFromView(View view, int width, int height) {
Bitmap bmp = Bitmap.createBitmap(width , height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmp);
view.layout(0, 0, view.getLayoutParams().width, view.getLayoutParams().height);
view.draw(canvas);
return bmp;
}
Taking and Sharing screenshot in android programmatically
I've searched everywhere but found this one working
takeAndShareScreenshot()
private void takeAndShareScreenshot(){
Bitmap ss = takeScreenshot();
saveBitmap(ss);
shareIt();
}
takeScreenshot()
private Bitmap takeScreenshot() {
View view = // decore view of the activity/fragment;
view.setDrawingCacheEnabled(true);
return view.getDrawingCache();
}
saveBitmap()
private void saveBitmap(Bitmap bitmap) {
// path to store screenshot and name of the file
imagePath = new File(requireContext().getExternalFilesDir(Environment.DIRECTORY_PICTURES) + "/" + "name_of_file" + ".jpg");
FileOutputStream fos;
try {
fos = new FileOutputStream(imagePath);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
} catch (IOException e) {
Log.e("GREC", e.getMessage(), e);
}
}
shareIt()
private void shareIt() {
try {
Uri uri = Uri.fromFile(imagePath);
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("image/*");
String shareBody = getString(R.string.share_body_text);
sharingIntent.putExtra(Intent.EXTRA_SUBJECT, R.string.subject);
sharingIntent.putExtra(Intent.EXTRA_TEXT, shareBody);
sharingIntent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(sharingIntent, "Share via"));
} catch (Exception e) {
e.printStackTrace();
}
}
Note:
In recent versions of android (>Marshmallow I guess), you may need `write
access to external directory`
In the code below, you can see that I have created an imageview using a bitmap. What I want to know is how I can save an image of that imageview to my camera roll. Thanks!
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.key_code_zoom);
title = (TextView) findViewById(R.id.accountTitleLarge);
imageView = (ImageView) findViewById(R.id.keyCodeLarge);
Intent callingActivity = getIntent();
Bundle callingBundle = callingActivity.getExtras();
if (callingBundle != null) {
String titleText = callingBundle.getString("title");
byte[] bytes = getIntent().getByteArrayExtra("bitmapbytes");
bmp = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
title.setText(titleText);
imageView.setImageBitmap(bmp);
}
imageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
supportFinishAfterTransition();
}
});
}
To save an image in gallery, you must first get the bitmap and then save it.
private void imageToRoll(){
imageView.buildDrawingCache();
Bitmap image = imageView.getDrawingCache(); // Gets the Bitmap
MediaStore.Images.Media.insertImage(getContentResolver(), imageBitmap, imagTitle , imageDescription); // Saves the image.
}
Also, set the permission in your manifest.
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
If you are looking for some code that will help you save the Image from the ImageView to your phone storage then the following code will help you
public String getImageFromView() {
imageview.setDrawingCacheEnabled(true);
// this is the important code :)
// Without it the view will have a dimension of 0,0 and the bitmap will be null
imageview.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
imageview.layout(0, 0, imageview.getMeasuredWidth(), imageview.getMeasuredHeight());
imageview.buildDrawingCache(true);
//Define a bitmap with the same size as the view
Bitmap b = imageview.getDrawingCache();
String imgPath = getImageFilename();
File file = new File(imgPath);
try {
OutputStream os = new FileOutputStream(file);
b.compress(Bitmap.CompressFormat.JPEG, 90, os);
os.flush();
os.close();
ContentValues image = new ContentValues();
image.put(Images.Media.TITLE, "NST");
image.put(Images.Media.DISPLAY_NAME, imgPath.substring(imgPath.lastIndexOf('/')+1));
image.put(Images.Media.DESCRIPTION, "App Image");
image.put(Images.Media.DATE_ADDED, System.currentTimeMillis());
image.put(Images.Media.MIME_TYPE, "image/jpg");
image.put(Images.Media.ORIENTATION, 0);
File parent = file.getParentFile();
image.put(Images.ImageColumns.BUCKET_ID, parent.toString()
.toLowerCase().hashCode());
image.put(Images.ImageColumns.BUCKET_DISPLAY_NAME, parent.getName()
.toLowerCase());
image.put(Images.Media.SIZE, file.length());
image.put(Images.Media.DATA, file.getAbsolutePath());
Uri result = mContext.getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, image);
} catch (FileNotFoundException fnfe) {
fnfe.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return imgPath;
}
you will have to provide a file path getImageFilename();this function provides the path where the file is suppose to be stored. The ContentValues will be responsible to let the images be scanned in gallery.
Hope this helps.
I am working on online gallery app, in a fragment Dialog images from specific displaying as a viewPager.
But the main problem i am unable to share a particular image on whatsapp because I am finding difficulty to get imageViewPreview.
Here is the code for loading image in viewPager
public class MyViewPagerAdapter extends PagerAdapter {
private LayoutInflater layoutInflater;
public MyViewPagerAdapter() {
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.image_fullscreen_preview, container, false);
final ImageView imageViewPreview = (ImageView) view.findViewById(R.id.image_preview);
Image image = images.get(position);
Glide.with(getActivity()).load(image.getLarge())
.thumbnail(0.5f)
.crossFade()
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imageViewPreview);
container.addView(view);
return view;
}
Now i am trying to get image from imageViewPreview from
whatsappShare.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Log.e(TAG, "Click working");
//shareImage();
// ImageView imageWhatsapp = (ImageView) view.findViewById(R.id.image_preview);
Uri bmpUri = getLocalBitmapUri(imageViewPreview);
if (bmpUri != null) {
// Construct a ShareIntent with link to image
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, bmpUri);
shareIntent.setType("image/*");
shareIntent.setPackage("com.whatsapp");
shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
// Launch sharing dialog for image
startActivity(Intent.createChooser(shareIntent, "Share Image"));
} else {
// ...sharing failed, handle error
Log.e(TAG, "ERROR" + bmpUri);
}
}
});
My getLocalBitmapUri() methos is as follow:
public Uri getLocalBitmapUri(ImageView imageViewPreview) {
// Extract Bitmap from ImageView drawable
Drawable drawable = imageViewPreview.getDrawable();
Bitmap bmp = null;
if (drawable instanceof BitmapDrawable) {
bmp = ((BitmapDrawable) imageViewPreview.getDrawable()).getBitmap();
} else {
return null;
}
// Store image to default external storage directory
Uri bmpUri = null;
try {
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS), "share_image_" + System.currentTimeMillis() + ".png");
file.getParentFile().mkdirs();
FileOutputStream out = new FileOutputStream(file);
Log.e(TAG, "popopo: " + file);
bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
out.close();
bmpUri = Uri.fromFile(file);
} catch (IOException e) {
e.printStackTrace();
}
return bmpUri;
}
But the problem is I am getting **NULL** from getLocalBitmapUri() method.
please guide me the get imageViewPreview.
i had faced sacreate this method, few time ago i used it and work, i forgot who given this snippet.
public Bitmap drawableToBitmap (Drawable drawable) {
Bitmap bitmap = null;
if (drawable instanceof BitmapDrawable) {
BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
if(bitmapDrawable.getBitmap() != null) {
return bitmapDrawable.getBitmap();
}
}
if(drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888); // Single color bitmap will be created of 1x1 pixel
} else {
bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
}
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bitmap;
}
at your getLocalBitmapUri()
public Uri getLocalBitmapUri(ImageView imageViewPreview) {
// Extract Bitmap from ImageView drawable
Drawable drawable = imageViewPreview.getDrawable();
Bitmap bmp = drawableToBitmap(imageViewPreview);
//...................
try {
File file = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS), "share_image_" + System.currentTimeMillis() + ".png");
file.getParentFile().mkdirs();
if(!file.exist()) file.createNewFile();
//..............
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" />
I'm trying to take a screenshot of the currently playing video. I'm trying with code that successfully takes a screenshot of web view but get not success in taking photo of currently playing video.
The code as follow for web view.
WebView w = new WebView(this);
w.setWebViewClient(new WebViewClient()
{
public void onPageFinished(WebView view, String url)
{
Picture picture = view.capturePicture();
Bitmap b = Bitmap.createBitmap( picture.getWidth(),
picture.getHeight(), Bitmap.Config.ARGB_8888);
Canvas c = new Canvas( b );
picture.draw( c );
FileOutputStream fos = null;
try {
fos = new FileOutputStream( "/sdcard/yahoo_" +System.currentTimeMillis() + ".jpg" );
if ( fos != null )
{
b.compress(Bitmap.CompressFormat.JPEG, 90, fos );
fos.close();
}
} catch( Exception e )
{
//...
}
}
});
setContentView( w );
w.loadUrl( "http://www.yahoo.com");
To expand on 66CLSjY's answer, FFmpegMediaMetadataRetriever has the same interface as MediaMetadataRetriever but it uses FFmpeg as the backend. If the default configuration won't work with your video format you can enable/disable codecs by recompiling. Here is some sample code:
FFmpegMediaMetadataRetriever mmr = new FFmpegMediaMetadataRetriever();
mmr.setDataSource(mUri);
mmr.extractMetadata(FFmpegMediaMetadataRetriever.METADATA_KEY_VIDEO_CODEC);
Bitmap b = getFrameAtTime(3000);
mmr.release();
try this it will gives bitmap for your app screen
View v = view.getRootView();
v.setDrawingCacheEnabled(true);
Bitmap b = v.getDrawingCache();
This works for me:
First a method to convert your view into a bitmap
public static Bitmap getBitmapFromView(View view) {
Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(),view.getHeight(),Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(returnedBitmap);
Drawable bgDrawable =view.getBackground();
if (bgDrawable!=null)
bgDrawable.draw(canvas);
else
canvas.drawColor(Color.WHITE);
view.draw(canvas);
return returnedBitmap;
}
Then save into the SD, for example:
static private boolean saveImage(Bitmap bm, String absolutePath)
{
FileOutputStream fos = null;
try
{
String absolutePath = "your path"
File file = new File(absolutePath);
fos = new FileOutputStream(file);
bm.compress(Bitmap.CompressFormat.PNG, 100, fos); //PNG ignora la calidad
} catch (IOException e)
{
e.printStackTrace();
}
finally
{
try
{
if (fos != null)
fos.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
return true;
}
Good Luck!