I have been able to make users upload photos to server taken from their gallery, but when a user uses camera to capture live and upload, I get this error unsupported scheme: file::///storage/...
I am using android upload service library
implementation "net.gotev:uploadservice:3.5.2"
I searched and discovered that file:// scheme is not allowed to be attached with Intent.
1. Selecting image from camera on button click
capture_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT,
FileProvider.getUriForFile(UploadActivity2.this, BuildConfig.APPLICATION_ID + ".provider",
createImageFile()));
startActivityForResult(intent, 0);
} catch (IOException ex) {
ex.printStackTrace();
}
}
});
2. Getting the image captured
if (resultCode == Activity.RESULT_OK)
switch (requestCode){
case 0:
try {
Uri cameraPath = FileProvider.getUriForFile(UploadActivity2.this,
BuildConfig.APPLICATION_ID + ".provider", createImageFile());
String stringUri = cameraPath.toString();
selectedImages.add(stringUri);
}catch (IOException ex) {
ex.printStackTrace();
Glide.with(this)
.load(cameraFilePath)
.into(display_image);
break;
}
}
As you see, I am using file provider to get Uri and storing the uri in a variable called selectedimages so I can pass it through an intent to another activity where the upload occurs
createImageFile method
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.UK).format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
//This is the directory in which the file will be created. This is the default location of Camera photos
File storageDir = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DCIM), "Camera");
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for using again
cameraFilePath = "file://" + image.getAbsolutePath();
return image;
}
3. Passing intent PATH, to uploadActivity
next_upload.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(UploadActivity2.this, UploadActivity3.class);
intent.putStringArrayListExtra("PATH", selectedImages);
startActivity(intent);
}
});
5. UploadAcvity where the upload happens
public void upload() {
ArrayList<String> selectedImages = getIntent().getStringArrayListExtra("PATH");
try {
String uploadId = UUID.randomUUID().toString();
//Creating a multi part request
new MultipartUploadRequest(this, uploadId, EndPoints.UPLOAD_URL)
.addFileToUpload(selectedImages.get(0), "image") //Adding file
.addParameter("caption", captionx) //Adding text parameter to the request
.setNotificationConfig(new UploadNotificationConfig())
.setMaxRetries(0)
.startUpload(); //Starting the upload
} catch (Exception exc) {
Toast.makeText(this, exc.getMessage(), Toast.LENGTH_SHORT).show();
}
}
Using this.
a. The image is not displaying in point 2 using Glide.with(this)
.load(cameraFilePath)
.into(display_image);
b. The image uploads but it is an empty file of 0 bytes.
But when I change the value of the variable of selectedImages in point 2 from selectedImages.add(stringUri); to selectedImages.add(cameraFilePath);
b. After clicking upload, I get error unsupported scheme: file::///storage/
Found the answer.
1. In the createImageFile method. I had to get the coontent:// url from the captured file using -
File newFile = new File(storageDir, image.getName());
contentUrl = FileProvider.getUriForFile(UploadActivity2.this,
BuildConfig.APPLICATION_ID + ".provider", newFile);
stringContentUrl = contentUrl.toString();
2. Then I passed the stringContentUrl into selected images String while getting the image captured.
selectedImages.add(stringContentUrl);
3. Passed it through an intent Extra and called it in the uploadActivity as seen in point 3 and 4 in the question.
I am trying to implement the best approach to reduce a file, basicly my app is about plants, i need high quality images, so the first thing i did was use a external library to crop images in thumbnail(so i can mantain aspect ratio) i use 1:1 thumnbnail format.
Every time i take a picture and if everything is ok on activityResult, it calls the builded crop library so i can cut and get the uri, like this:
protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
super.onActivityResult(requestCode, resultCode, data);
dateTimer = getTime();
Log.d("codig",String.valueOf(requestCode));
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Log.d("resultOK","resultOK");
CropImage.activity(data.getData())
.setAspectRatio(1,1)
.setInitialCropWindowPaddingRatio(0)
.setActivityTitle("Corte a foto")
.setActivityMenuIconColor(R.color.nephritis)
.setRequestedSize(300, 300, CropImageView.RequestSizeOptions.RESIZE_INSIDE)
.start(this);
}
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
Uri uri = result.getUri();
Bitmap pic = null;
try {
pic = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri);
} catch (IOException e) {
e.printStackTrace();
}
path = saveToInternalStorage(pic);
Log.d("caminho",path);
showDetailsDialog(data);
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
Exception error = result.getError();
Log.d("pict12",error.toString());
}
}
}
as you guys can see i have a setRequestSize method there, where i reduce the size of the image (this works, but just sometimes, the text i send as base64 is still to big.
i convert the uri to bitmap and save it on the device file, on next acitivty i get the file
private String saveToInternalStorage(Bitmap bitmapImage){
ContextWrapper cw = new ContextWrapper(getApplicationContext());
// path to /data/data/yourapp/app_data/imageDir
File directory = cw.getDir("imageDir", Context.MODE_PRIVATE);
// Create imageDir
File mypath=new File(directory,"captured.jpg");
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.JPEG, 100, fos);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return directory.getAbsolutePath();
}
so on next activity i get it like this:
private void loadImageFromStorage(String path)
{
try {
File f=new File(path, "captured.jpg");
Log.d("filehe",f.toString());
b = BitmapFactory.decodeStream(new FileInputStream(f));
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
}
i get the b(bitmap) and covert him to byte[] after to base64(what my server asks for)
byte[] capture = encodeImage(b);
String encodedImage = Base64.encodeToString(capture,1);
Log.d("encodedImage",encodedImage);
params.put("base64", encodedImage);
the problem here is that i need to preserve the quality of the image and i can't get the quality without increasing the heavyness on my server, can't i compress it somehow? i do it on the file but doesn't work
I am trying to convert a google doc into a bitmap so I can perform OCR within it.
I am however getting the errors:
E/BitmapFactory: Unable to decode stream: java.io.FileNotFoundException: /document/acc=4;doc=14882: open failed: ENOENT (No such file or directory)
E/ReadFile: Bitmap must be non-null
E/CropTest: Failed to read bitmap
Code:
/**
* Fires an intent to spin up the "file chooser" UI and select an image.
*/
public void performFileSearch(View view) {
// ACTION_OPEN_DOCUMENT is the intent to choose a file via the system's file
// browser.
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
// Filter to only show results that can be "opened", such as a
// file (as opposed to a list of contacts or timezones)
intent.addCategory(Intent.CATEGORY_OPENABLE);
// Filter to show only images, using the image MIME data type.
// If one wanted to search for ogg vorbis files, the type would be "audio/ogg".
// To search for all documents available via installed storage providers,
// it would be "*/*".
intent.setType("application/vnd.google-apps.document");
startActivityForResult(intent, READ_REQUEST_CODE);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent resultData){
if(requestCode == READ_REQUEST_CODE && resultCode == Activity.RESULT_OK){
Uri uri = null;
if(resultData != null){
uri = resultData.getData();
Log.i(TAG, "Uri" + uri.toString());
Toast.makeText(MainActivity.this, "Uri:" + uri.toString(), Toast.LENGTH_LONG).show();
IMGS_PATH = Environment.getExternalStorageDirectory().toString()+ "/TesseractSample/imgs";
prepareDirectory(IMGS_PATH);
prepareTesseract();
startOCR(uri);
}
}
}
//Function that begins the OCR functionality.
private void startOCR(Uri imgUri) {
try {
Log.e(TAG, "Inside the startOCR function");
BitmapFactory.Options options = new BitmapFactory.Options();
// 1 - means max size. 4 - means maxsize/4 size. Don't use value <4, because you need more memory in the heap to store your data.
options.inSampleSize = 4;
// FileOutputStream outStream = new FileOutputStream(String.valueOf(imgUri));
Bitmap bm = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imgUri);
// bm.compress(Bitmap.CompressFormat.PNG,100,outStream);
Bitmap bitmap = BitmapFactory.decodeFile(imgUri.getPath());
// bitmap = toGrayscale(bitmap);
//The result variable will hold whatever is returned from "extractText" function.
result = extractText(bm);
//Creating the intent to go to the CropTest
Intent intentToCropTest = new Intent(MainActivity.this, CropTest.class);
intentToCropTest.putExtra("result",result);
startActivity(intentToCropTest);
//Setting the string result to the content of the TextView.
// textView.setText(result);
} catch (Exception e) {
Log.e(TAG, e.getMessage());
}
}
You are trying to treat Android Uri as file path. Don't do that. Instead retrive a ContentResolver instance and use it to convert Uri to stream:
AssetFileDescriptor fd = context.getContentResolver()
.openAssetFileDescriptor(uri, "r");
InputStream is = fd.createInputStream();
If AssetFileDescriptor is not supported (you get null or an Exception happens), try a more direct route:
InputStream is = context.getContentResolver().openInputStream();
There is also another super-duper powerful content-type-aware approach, which existed for ages, but was re-discovered by Google's own developers around the time of Android N release. It requires a lot more infrastructure on ContentProvider side (may not be supported in older versions of Google Services):
ContentResolver r = getContentResolver();
String[] streamTypes = r.getStreamTypes(uri, "*/*");
AssetFileDescriptor descriptor = r.openTypedAssetFileDescriptor(
uri,
streamTypes[0],
null);
InputStream is = descriptor.createInputStream();
Then use obtained stream to create Bitmap:
Bitmap bitmap = BitmapFactory.decodeStream(is);
I have an app that allow user to upload a photo on wall.
The code works well for the majority of users, but I have reported that the application crashes sometimes when uploading photo.
The problem is not in taking the pictures from the camera, but it is when you have to take the path of the picture.
The version of Android that is causing this problem is 4.4.2, but I do not understand how to fix it.
post some code:
activityResult:
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == CAMERA_PIC_REQUEST) {
try {
//picUri is a global variable Uri
picUri = data.getData();
cropImage();
} catch (Exception e) {
e.printStackTrace();
}
}
else if(requestCode == PIC_CROP) {
try{
//thumbnail is a global variable Bitmap
thumbnail = MediaStore.Images.Media.getBitmap(context.getContentResolver(), cropImageUri);
setImage();
}
catch (Exception e) {
e.printStackTrace();
}
}
}
}
hot to crop image:
public void cropImage() {
try {
Intent cropIntent = new Intent("com.android.camera.action.CROP");
//indicate image type and Uri
cropIntent.setDataAndType(picUri, "image/*");
//set crop properties
cropIntent.putExtra("crop", "true");
//indicate aspect of desired crop
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
cropIntent.putExtra("scale", true);
//indicate output X and Y
cropIntent.putExtra("outputX", 700);
cropIntent.putExtra("outputY", 700);
//retrieve data on return
cropIntent.putExtra("return-data", false);
File f = createNewFile("CROP_");
try{
f.createNewFile();
}
catch (IOException e) {
e.printStackTrace();
}
//cropImageUri is a global variable Uri
cropImageUri = Uri.fromFile(f);
cropIntent.putExtra(MediaStore.EXTRA_OUTPUT, cropImageUri);
//start the activity - we handle returning in onActivityResult
startActivityForResult(cropIntent, PIC_CROP);
}
catch(ActivityNotFoundException anfe){
anfe.printStackTrace();
}
}
create new File:
private File createNewFile(String prefix) {
if (prefix== null) {
prefix="IMG_";
}
else if("".equalsIgnoreCase(prefix)) {
prefix="IMG_";
}
File newDirectory = new File(Environment.getExternalStorageDirectory()+"/mypics/");
if (!newDirectory.exists()) {
if (newDirectory.mkdir()) {
}
}
File file = new File(newDirectory,(prefix+System.currentTimeMillis()+".jpg"));
if (file.exists()) {
file.delete();
try {
file.createNewFile();
}catch (IOException e) {
e.printStackTrace();
}
}
return file;
}
then when a user click on "send" method preUploadImage is called:
public void preUploadImage() {
UploadImage uploadImage = new UploadImage();
Uri newUri = getImageUri(thumbnail);
try{
// System.out.println("uri = "+picUri);
uploadImage.upload(getRealPathFromURI(newUri));
}
catch (IOException e) {
e.printStackTrace();
}
}
public Uri getImageUri(Bitmap inImage) {
String path = MediaStore.Images.Media.insertImage(context.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}
and in the last row the error appears.
return Uri.parse(path);
this row cause a NullPointerException
java.lang.NullPointerException: uriString
at android.net.Uri$StringUri.<init>(Uri.java:468)
at android.net.Uri$StringUri.<init>(Uri.java:458)
at android.net.Uri.parse(Uri.java:430)
at com.delsorboilario.verdebio.ScriviDomanda.getImageUri(ScriviDomanda.java:584)
at com.delsorboilario.verdebio.ScriviDomanda.preUploadImage(ScriviDomanda.java:608)
at com.delsorboilario.verdebio.ScriviDomanda$6$4$2.run(ScriviDomanda.java:292)
I have not attempted to use insertImage(), and in this case, it is not quite clear why you would need it.
Primarily, it seems like you are looking to upload the photo. For that, all you need is the File that you created in createNewFile(). If you are uploading it yourself (e.g., HttpUrlConnection, some third-party library), you should be able to just use the File or an InputStream on it. Even if the upload code really needs a Uri, you can try Uri.fromFile() to get a Uri from your File and see if that works.
Where MediaStore does come into play is making your file be indexed and therefore accessible to apps (ones that query the MediaStore for images) and to users (via their MTP connection through their USB cable). MediaScannerConnection and its static scanFile() method are a fairly straightforward way to get the file indexed. Just make sure your file is fully written to disk first (e.g., if you are writing the file yourself, call getFD().sync() on your FileOutputStream after flush() and before close()).
Looks like MediaStore.Images.Media.insertImage(context.getContentResolver(), inImage, "Title", null); return null.
Form the documentation of MediaStore.Images.Media
Insert an image and create a thumbnail for it.
Parameters
cr The content resolver to use
source The stream to use for the image
title The name of the image
description The description of the image
Returns The URL to the newly created image, or null if the image
failed to be stored for any reason
How can I take a screenshot of a selected area of phone-screen not by any program but from code?
Here is the code that allowed my screenshot to be stored on an SD card and used later for whatever your needs are:
First, you need to add a proper permission to save the file:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
And this is the code (running in an Activity):
private void takeScreenshot() {
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
try {
// image naming and path to include sd card appending name you choose for file
String mPath = Environment.getExternalStorageDirectory().toString() + "/" + now + ".jpg";
// create bitmap screen capture
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
File imageFile = new File(mPath);
FileOutputStream outputStream = new FileOutputStream(imageFile);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
outputStream.flush();
outputStream.close();
openScreenshot(imageFile);
} catch (Throwable e) {
// Several error may come out with file handling or DOM
e.printStackTrace();
}
}
And this is how you can open the recently generated image:
private void openScreenshot(File imageFile) {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
Uri uri = Uri.fromFile(imageFile);
intent.setDataAndType(uri, "image/*");
startActivity(intent);
}
If you want to use this on fragment view then use:
View v1 = getActivity().getWindow().getDecorView().getRootView();
instead of
View v1 = getWindow().getDecorView().getRootView();
on takeScreenshot() function
Note:
This solution doesn't work if your dialog contains a surface view. For details please check the answer to the following question:
Android Take Screenshot of Surface View Shows Black Screen
Call this method, passing in the outer most ViewGroup that you want a screen shot of:
public Bitmap screenShot(View view) {
Bitmap bitmap = Bitmap.createBitmap(view.getWidth(),
view.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
view.draw(canvas);
return bitmap;
}
Note: works only for rooted phone
Programmatically, you can run adb shell /system/bin/screencap -p /sdcard/img.png as below
Process sh = Runtime.getRuntime().exec("su", null,null);
OutputStream os = sh.getOutputStream();
os.write(("/system/bin/screencap -p " + "/sdcard/img.png").getBytes("ASCII"));
os.flush();
os.close();
sh.waitFor();
then read img.png as Bitmap and use as your wish.
No root permission or no big coding is required for this method.
On adb shell using below command you can take screen shot.
input keyevent 120
This command does not required any root permission so same you can perform from java code of android application also.
Process process;
process = Runtime.getRuntime().exec("input keyevent 120");
More about keyevent code in android see http://developer.android.com/reference/android/view/KeyEvent.html
Here we have used. KEYCODE_SYSRQ its value is 120 and used for System Request / Print Screen key.
As CJBS said, The output picture will be saved in /sdcard/Pictures/Screenshots
Mualig answer is very good, but I had the same problem Ewoks describes, I'm not getting the background. So sometimes is good enough and sometimes I get black text over black background (depending on the theme).
This solution is heavily based in Mualig code and the code I've found in Robotium. I'm discarding the use of drawing cache by calling directly to the draw method. Before that I'll try to get the background drawable from current activity to draw it first.
// Some constants
final static String SCREENSHOTS_LOCATIONS = Environment.getExternalStorageDirectory().toString() + "/screenshots/";
// Get device dimmensions
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
// Get root view
View view = mCurrentUrlMask.getRootView();
// Create the bitmap to use to draw the screenshot
final Bitmap bitmap = Bitmap.createBitmap(size.x, size.y, Bitmap.Config.ARGB_4444);
final Canvas canvas = new Canvas(bitmap);
// Get current theme to know which background to use
final Activity activity = getCurrentActivity();
final Theme theme = activity.getTheme();
final TypedArray ta = theme
.obtainStyledAttributes(new int[] { android.R.attr.windowBackground });
final int res = ta.getResourceId(0, 0);
final Drawable background = activity.getResources().getDrawable(res);
// Draw background
background.draw(canvas);
// Draw views
view.draw(canvas);
// Save the screenshot to the file system
FileOutputStream fos = null;
try {
final File sddir = new File(SCREENSHOTS_LOCATIONS);
if (!sddir.exists()) {
sddir.mkdirs();
}
fos = new FileOutputStream(SCREENSHOTS_LOCATIONS
+ System.currentTimeMillis() + ".jpg");
if (fos != null) {
if (!bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fos)) {
Log.d(LOGTAG, "Compress/Write failed");
}
fos.flush();
fos.close();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
As a reference, one way to capture the screen (and not just your app activity) is to capture the framebuffer (device /dev/graphics/fb0). To do this you must either have root privileges or your app must be an app with signature permissions ("A permission that the system grants only if the requesting application is signed with the same certificate as the application that declared the permission") - which is very unlikely unless you compiled your own ROM.
Each framebuffer capture, from a couple of devices I have tested, contained exactly one screenshot. People have reported it to contain more, I guess it depends on the frame/display size.
I tried to read the framebuffer continuously but it seems to return for a fixed amount of bytes read. In my case that is (3 410 432) bytes, which is enough to store a display frame of 854*480 RGBA (3 279 360 bytes). Yes, the frame, in binary, outputted from fb0 is RGBA in my device. This will most likely depend from device to device. This will be important for you to decode it =)
In my device /dev/graphics/fb0 permissions are so that only root and users from group graphics can read the fb0.
graphics is a restricted group so you will probably only access fb0 with a rooted phone using su command.
Android apps have the user id (uid) = app_## and group id (guid) = app_## .
adb shell has uid = shell and guid = shell, which has much more permissions than an app. You can actually check those permissions at /system/permissions/platform.xml
This means you will be able to read fb0 in the adb shell without root but you will not read it within the app without root.
Also, giving READ_FRAME_BUFFER and/or ACCESS_SURFACE_FLINGER permissions on AndroidManifest.xml will do nothing for a regular app because these will only work for 'signature' apps.
Also check this closed thread for more details.
private void captureScreen() {
View v = getWindow().getDecorView().getRootView();
v.setDrawingCacheEnabled(true);
Bitmap bmp = Bitmap.createBitmap(v.getDrawingCache());
v.setDrawingCacheEnabled(false);
try {
FileOutputStream fos = new FileOutputStream(new File(Environment
.getExternalStorageDirectory().toString(), "SCREEN"
+ System.currentTimeMillis() + ".png"));
bmp.compress(CompressFormat.PNG, 100, fos);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
Add the permission in the manifest
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
For Supporting Marshmallow or above versions, please add the below code in the activity onCreate method
ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},00);
My solution is:
public static Bitmap loadBitmapFromView(Context context, View v) {
DisplayMetrics dm = context.getResources().getDisplayMetrics();
v.measure(MeasureSpec.makeMeasureSpec(dm.widthPixels, MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(dm.heightPixels, MeasureSpec.EXACTLY));
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
Bitmap returnedBitmap = Bitmap.createBitmap(v.getMeasuredWidth(),
v.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(returnedBitmap);
v.draw(c);
return returnedBitmap;
}
and
public void takeScreen() {
Bitmap bitmap = ImageUtils.loadBitmapFromView(this, view); //get Bitmap from the view
String mPath = Environment.getExternalStorageDirectory() + File.separator + "screen_" + System.currentTimeMillis() + ".jpeg";
File imageFile = new File(mPath);
OutputStream fout = null;
try {
fout = new FileOutputStream(imageFile);
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fout);
fout.flush();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
fout.close();
}
}
Images are saved in the external storage folder.
You can try the following library:
http://code.google.com/p/android-screenshot-library/
Android Screenshot Library (ASL) enables to programmatically capture screenshots from Android devices without requirement of having root access privileges. Instead, ASL utilizes a native service running in the background, started via the Android Debug Bridge (ADB) once per device boot.
Based on the answer of #JustinMorris above and #NiravDangi here https://stackoverflow.com/a/8504958/2232148 we must take the background and foreground of a view and assemble them like this:
public static Bitmap takeScreenshot(View view, Bitmap.Config quality) {
Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), quality);
Canvas canvas = new Canvas(bitmap);
Drawable backgroundDrawable = view.getBackground();
if (backgroundDrawable != null) {
backgroundDrawable.draw(canvas);
} else {
canvas.drawColor(Color.WHITE);
}
view.draw(canvas);
return bitmap;
}
The quality parameter takes a constant of Bitmap.Config, typically either Bitmap.Config.RGB_565 or Bitmap.Config.ARGB_8888.
public class ScreenShotActivity extends Activity{
private RelativeLayout relativeLayout;
private Bitmap myBitmap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
relativeLayout = (RelativeLayout)findViewById(R.id.relative1);
relativeLayout.post(new Runnable() {
public void run() {
//take screenshot
myBitmap = captureScreen(relativeLayout);
Toast.makeText(getApplicationContext(), "Screenshot captured..!", Toast.LENGTH_LONG).show();
try {
if(myBitmap!=null){
//save image to SD card
saveImage(myBitmap);
}
Toast.makeText(getApplicationContext(), "Screenshot saved..!", Toast.LENGTH_LONG).show();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
public static Bitmap captureScreen(View v) {
Bitmap screenshot = null;
try {
if(v!=null) {
screenshot = Bitmap.createBitmap(v.getMeasuredWidth(),v.getMeasuredHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(screenshot);
v.draw(canvas);
}
}catch (Exception e){
Log.d("ScreenShotActivity", "Failed to capture screenshot because:" + e.getMessage());
}
return screenshot;
}
public static void saveImage(Bitmap bitmap) throws IOException{
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 40, bytes);
File f = new File(Environment.getExternalStorageDirectory() + File.separator + "test.png");
f.createNewFile();
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
fo.close();
}
}
ADD PERMISSION
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
You can try to do something like this,
Getting a bitmap cache from a layout or a view by doing something like
First you gotta setDrawingCacheEnabled to a layout(a linearlayout or relativelayout, or a view)
then
Bitmap bm = layout.getDrawingCache()
Then you do whatever you want with the bitmap. Either turning it into an image file, or send the bitmap's uri to somewhere else.
Short way is
FrameLayout layDraw = (FrameLayout) findViewById(R.id.layDraw); /*Your root view to be part of screenshot*/
layDraw.buildDrawingCache();
Bitmap bmp = layDraw.getDrawingCache();
Most of the answers for this question use the the Canvas drawing method or drawing cache method. However, the View.setDrawingCache() method is deprecated in API 28. Currently the recommended API for making screenshots is the PixelCopy class available from API 24 (but the methods which accept Window parameter are available from API 26 == Android 8.0 Oreo). Here is a sample Kotlin code for retrieving a Bitmap:
#RequiresApi(Build.VERSION_CODES.O)
fun saveScreenshot(view: View) {
val window = (view.context as Activity).window
if (window != null) {
val bitmap = Bitmap.createBitmap(view.width, view.height, Bitmap.Config.ARGB_8888)
val locationOfViewInWindow = IntArray(2)
view.getLocationInWindow(locationOfViewInWindow)
try {
PixelCopy.request(window, Rect(locationOfViewInWindow[0], locationOfViewInWindow[1], locationOfViewInWindow[0] + view.width, locationOfViewInWindow[1] + view.height), bitmap, { copyResult ->
if (copyResult == PixelCopy.SUCCESS) {
saveBitmap(bitmap)
}
// possible to handle other result codes ...
}, Handler())
} catch (e: IllegalArgumentException) {
// PixelCopy may throw IllegalArgumentException, make sure to handle it
}
}
}
For those who want to capture a GLSurfaceView, the getDrawingCache or drawing to canvas method won't work.
You have to read the content of the OpenGL framebuffer after the frame has been rendered. There is a good answer here
I have created a simple library that takes a screenshot from a View and either gives you a Bitmap object or saves it directly to any path you want
https://github.com/abdallahalaraby/Blink
If you want to take screenshot from fragment than follow this:
Override onCreateView():
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_one, container, false);
mView = view;
}
Logic for taking screenshot:
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
View view = mView.findViewById(R.id.scrollView1);
shareScreenShotM(view, (NestedScrollView) view);
}
method shareScreenShotM)():
public void shareScreenShotM(View view, NestedScrollView scrollView){
bm = takeScreenShot(view,scrollView); //method to take screenshot
File file = savePic(bm); // method to save screenshot in phone.
}
method takeScreenShot():
public Bitmap takeScreenShot(View u, NestedScrollView z){
u.setDrawingCacheEnabled(true);
int totalHeight = z.getChildAt(0).getHeight();
int totalWidth = z.getChildAt(0).getWidth();
Log.d("yoheight",""+ totalHeight);
Log.d("yowidth",""+ totalWidth);
u.layout(0, 0, totalWidth, totalHeight);
u.buildDrawingCache();
Bitmap b = Bitmap.createBitmap(u.getDrawingCache());
u.setDrawingCacheEnabled(false);
u.destroyDrawingCache();
return b;
}
method savePic():
public static File savePic(Bitmap bm){
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
File sdCardDirectory = new File(Environment.getExternalStorageDirectory() + "/Foldername");
if (!sdCardDirectory.exists()) {
sdCardDirectory.mkdirs();
}
// File file = new File(dir, fileName);
try {
file = new File(sdCardDirectory, Calendar.getInstance()
.getTimeInMillis() + ".jpg");
file.createNewFile();
new FileOutputStream(file).write(bytes.toByteArray());
Log.d("Fabsolute", "File Saved::--->" + file.getAbsolutePath());
Log.d("Sabsolute", "File Saved::--->" + sdCardDirectory.getAbsolutePath());
} catch (IOException e) {
e.printStackTrace();
}
return file;
}
For activity you can simply use View v1 = getWindow().getDecorView().getRootView(); instead of mView
Just extending taraloca's answer. You must add followings lines to make it work. I have made the image name static. Please ensure you use taraloca's timestamp variable incase you need dynamic image name.
// Storage Permissions
private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
private void verifyStoragePermissions() {
// Check if we have write permission
int permission = ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (permission != PackageManager.PERMISSION_GRANTED) {
// We don't have permission so prompt the user
ActivityCompat.requestPermissions(this, PERMISSIONS_STORAGE, REQUEST_EXTERNAL_STORAGE);
}else{
takeScreenshot();
}
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (requestCode == REQUEST_EXTERNAL_STORAGE) {
takeScreenshot();
}
}
}
And in the AndroidManifest.xml file following entries are must:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
For Full Page Scrolling Screenshot
If you want to capture a full View screenshot (Which contains a scrollview or so) then have a check at this library
https://github.com/peter1492/LongScreenshot
All you have to do is import the Gradel, and create an object of BigScreenshot
BigScreenshot longScreenshot = new BigScreenshot(this, x, y);
A callback will be received with the bitmap of the Screenshots taken while automatically scrolling through the screen view group and at the end assembled together.
#Override public void getScreenshot(Bitmap bitmap) {}
Which can be saved to the gallery or whatsoever usage is necessary their after
For system applications only!
Process process;
process = Runtime.getRuntime().exec("screencap -p " + outputPath);
process.waitFor();
Note: System applications don't need to run "su" to execute this command.
The parameter view is the root layout object.
public static Bitmap screenShot(View view) {
Bitmap bitmap = null;
if (view.getWidth() > 0 && view.getHeight() > 0) {
bitmap = Bitmap.createBitmap(view.getWidth(),
view.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
view.draw(canvas);
}
return bitmap;
}
From Android 11 (API level 30) you can take screen shot with the accessibility service:
takeScreenshot - Takes a screenshot of the specified display and returns it via an AccessibilityService.ScreenshotResult.
Take screenshot of a view in android.
public static Bitmap getViewBitmap(View v) {
v.clearFocus();
v.setPressed(false);
boolean willNotCache = v.willNotCacheDrawing();
v.setWillNotCacheDrawing(false);
int color = v.getDrawingCacheBackgroundColor();
v.setDrawingCacheBackgroundColor(0);
if (color != 0) {
v.destroyDrawingCache();
}
v.buildDrawingCache();
Bitmap cacheBitmap = v.getDrawingCache();
if (cacheBitmap == null) {
return null;
}
Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);
v.destroyDrawingCache();
v.setWillNotCacheDrawing(willNotCache);
v.setDrawingCacheBackgroundColor(color);
return bitmap;
}
If you want to capture screenshot of a View, use View::drawToBitmap extension function:
val bitmap = myTargetView.drawToBitmap(/*Optional:*/ Bitmap.Config.ARGB_8888)
Only make sure to use the -ktx version of AndroidX Core library:
implementation("androidx.core:core-ktx:1.6.0")
I've already answered a similar question like this here.
Kotlin
private fun screenShot() {
try {
val mPath: String = this.getExternalFilesDir(null).getAbsolutePath()
.toString() + "/temp" + ".png"
// create bitmap screenshot
val v1: View = getWindow().getDecorView().getRootView()
v1.isDrawingCacheEnabled = true
val bitmap = Bitmap.createBitmap(v1.drawingCache)
v1.isDrawingCacheEnabled = false
val imageFile = File(mPath)
val outputStream = FileOutputStream(imageFile)
val quality = 100
bitmap.compress(Bitmap.CompressFormat.PNG, quality, outputStream)
outputStream.flush()
outputStream.close()
//or you can share to test the method fast
val uriPath =
FileProvider.getUriForFile(this, getPackageName() + ".sharing.provider", imageFile)
val intent = Intent(Intent.ACTION_SEND)
intent.type = "image/*"
intent.clipData = ClipData.newRawUri("", uriPath)
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
intent.putExtra(Intent.EXTRA_STREAM, uriPath)
startActivity(Intent.createChooser(intent, "Sharing to..."))
} catch (e: Throwable) {
e.printStackTrace()
}
}
Java
private void screenShot() {
try {
String mPath = this.getExternalFilesDir(null).getAbsolutePath().toString() + "/temp" + ".png";
// create bitmap screenshot
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
File imageFile = new File(mPath);
FileOutputStream outputStream = new FileOutputStream(imageFile);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.PNG, quality, outputStream);
outputStream.flush();
outputStream.close();
//or you can share to test the method fast
Uri uriPath = FileProvider.getUriForFile(this, getPackageName() + ".sharing.provider", imageFile);
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("image/*");
intent.setClipData(ClipData.newRawUri("", uriPath));
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
intent.putExtra(Intent.EXTRA_STREAM, uriPath);
startActivity(Intent.createChooser(intent, "Sharing to..."));
} catch (Throwable e) {
e.printStackTrace();
}
}
If you want to capture a view or layout like RelativeLayout or LinearLayout etc.
Just use the code:
LinearLayout llMain = (LinearLayout) findViewById(R.id.linearlayoutMain);
Bitmap bm = loadBitmapFromView(llMain);
now you can save this bitmap on device storage by :
FileOutputStream outStream = null;
File f=new File(Environment.getExternalStorageDirectory()+"/Screen Shots/");
f.mkdir();
String extStorageDirectory = f.toString();
File file = new File(extStorageDirectory, "my new screen shot");
pathOfImage = file.getAbsolutePath();
try {
outStream = new FileOutputStream(file);
bm.compress(Bitmap.CompressFormat.PNG, 100, outStream);
Toast.makeText(getApplicationContext(), "Saved at "+f.getAbsolutePath(), Toast.LENGTH_LONG).show();
addImageGallery(file);
//mail.setEnabled(true);
flag=true;
} catch (FileNotFoundException e) {e.printStackTrace();}
try {
outStream.flush();
outStream.close();
} catch (IOException e) {e.printStackTrace();}