The idea of my app is to capture image from camera then crop specified area from it.
The problem :
When i save the cropped image in my sd card for the first time to launch the app, it saved properly. but when run my app one more time and take image then crop it. when save it the first image that take and crop at first time appear in the sd card not the current one.
This is my code for save images:
public static void save(Activity activity, Bitmap bm, String name) {
OutputStream outStream = null;
File externalFilesDir = activity.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File outFile = new File(externalFilesDir, "IDOCR" + File.separator + "Numbers");
if (!outFile.exists())
outFile.mkdirs();
File number = new File(outFile, name + ".PNG");
//if (number.exists())
// number.delete();
try {
//outStream = new FileOutputStream(new File(path));
outStream = new FileOutputStream(number);
bm.compress(Bitmap.CompressFormat.PNG, 100, outStream);
outStream.flush();
outStream.close();
bm.recycle();
System.gc();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Maybe if you are trying to overwrite the previous version of the file, you should first delete the previous one...
You can add:
if (!outFile.exists())
outFile.mkdirs();
else {
outFile.delete();
outFile.createNewFile();
}
Related
Ok i'm completely editing this post... I have made it so that I can save the file path to my data base. this works and is saved as /storage/emulated/0/1508blah blah.jpg . Now i cannot get my code to read this item back into a picture.
imagePhoto = (ImageView)findViewById(R.id.detail_recipe_image);
Toast.makeText(this, recipe.image, Toast.LENGTH_SHORT).show();
Bitmap bmp = BitmapFactory.decodeFile(String.valueOf(recipe.image));
imagePhoto.setImageBitmap(bmp);
am I missing something here? cause the Toast Is reading the recipe.image just fine and is displaying the path. why Is the rest not displaying the image?
Storage Code
private void onCaptureImageResult(Intent data) {
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
File destination = new File(Environment.getExternalStorageDirectory(),
System.currentTimeMillis() + ".jpg");
String picturePath = destination.toString();
FileOutputStream fo;
try {
destination.createNewFile();
fo = new FileOutputStream(destination);
fo.write(bytes.toByteArray());
fo.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
textImagePath.setText(picturePath.toString());
ImageView img = (ImageView)findViewById(R.id.addphotoview);
img.setImageBitmap(thumbnail);
}
Adding in the files paths seem to be the best solution to the problem i am having so that you #ModularSynth for your help with this. Always making sure all the info is your code to make the file paths work helps.
I'm making a screenshot of my few programmatically but somehow the image is saved in the /TestProject/ folder but also in the normal picture folder. Does anyone have a clue why this is happening. (And is there a change that Android's normal picture folder shows all images all together?)
OutputStream out;
root.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(root.getDrawingCache());
root.setDrawingCacheEnabled(false);
/* Preparation ==================================== */
// Find the SD Card path
File path = Environment.getExternalStorageDirectory();
// Create a new folder in SD Card
File dir = new File(path.getAbsolutePath() + "/TestProject/");
dir.mkdirs();
/* ================================================= */
// Create a name for the saved image
File file = new File(dir, (new Date().getTime() + ".jpg"));
try {
out = new FileOutputStream(file);
// Compress into png format image from 0% - 100%
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, (new Date().getTime() + ".jpg"), null);
Toast.makeText(this, "Farm art saved", Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
}
The insertImage() method also creates a thumbnail for the inserted image. There is a probability that you're seeing the thumbnail and the inserted image.
If you want to force a scan of the image by the media store, you should use the scanFile()[0] method instead.
[0] http://developer.android.com/reference/android/media/MediaScannerConnection.html#scanFile%28java.lang.String,%20java.lang.String%29
i am working on OpenGl Es in android.given efects on images and when i save the image in sdcard it showing black image.how i solve this problem.
File cacheDir;
Toast.makeText(ImageProcessingActivity.this, "Photo", 500).show();
Bitmap icon;
frame.setDrawingCacheEnabled(true);
icon = Bitmap.createBitmap(frame.getDrawingCache());
Bitmap bitmap = icon;
frame.setDrawingCacheEnabled(false);
// File mFile1 = Environment.getExternalStorageDirectory();
Date d = new Date();
String fileName = d.getTime() + "mg1.jpg";
File storagePath = (Environment.getExternalStorageDirectory());
File dest = new File(storagePath + "/CityAppImages");
if (!dest.exists()) {
dest.mkdirs();
}
File mFile2 = new File(dest, fileName);
sdpath = mFile2.getAbsolutePath();
Log.d("qqqqqqqqqqqqqqqqqqqqqqq", "zzzzzzzz" + sdpath);
try {
FileOutputStream outStream;
outStream = new FileOutputStream(mFile2);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream);
outStream.flush();
outStream.close();
Toast.makeText(ImageProcessingActivity.this, "Photo Saved Sucessfully", 500)
.show();
image.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(ImageProcessingActivity.this, "Photo Not Saved Sucessfully",500).show();
}
I had this problem once and it was because getDrawingCache is not what it should be. The problem is not the saving, is the way you do it.
From what I understand you want to capture the screen of your app, but this is very tricky and can cause a lot of problems.
Read this topic, since it helped me a lot when I had this problem.
How to programmatically take a screenshot in Android?
Edit:
Also, because you are using GLES and then printing the screen you should go to Settings > Developer Options > check Disable Hardware Overlays and Force GPU Rendering.
I am facing some strange problem with my android code,
I have an image in Bitmap variable and want to save that file to SD card.
I code as follow,
Bitmap IMAGE // Loaded from internet servers.;
try {
File _sdCard = Environment.getExternalStorageDirectory();
File _picDir = new File(_sdCard, "MyDirectory");
_picDir.mkdirs();
File _picFile = new File(_picDir, "MyImage.jpg");
FileOutputStream _fos = new FileOutputStream(_picFile);
IMAGE.compress(Bitmap.CompressFormat.JPEG, 100, _fos);
_fos.flush();
_fos.close();
Toast.makeText(this, "Image Downloaded", 7000).show();
} catch (Exception ex) {
ex.printStackTrace();
Toast.makeText(this, ex.getMessage(), 7000).show();
}
I am using Sony Experia Arc as my testing device, when the phone is connected to my computer, the code works nice, it stores image and also displays in gallery. But when I disconnect phone from my computer and test the app, it doesn't save picture and doesn't show any exception.
use this function
void saveImage() {
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/saved_images");
String fname = "Image.jpg";
File file = new File (myDir, fname);
if (file.exists ()) file.delete ();
try {
FileOutputStream out = new FileOutputStream(file);
myBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
Check this answer will give more details Android saving file to external storage
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
//4
File file = new File(Environment.getExternalStorageDirectory()+File.separator + "image.jpg");
try {
file.createNewFile();
FileOutputStream fo = new FileOutputStream(file);
//5
fo.write(bytes.toByteArray());
fo.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
**This Code Cover the Following Topics**
1. Save a bitmap Image on sdcard a jpeg
2. Create a folder on sdcard
3. Create every file Separate name
4. Every file save with date and time
5. Resize the image in very small size
6. Best thing image Quality fine not effected from Resizing
The following method is used to create an image file using the bitmap
public void createImageFromBitmap(Bitmap bmp) {
FileOutputStream fileOutputStream = null;
try {
// create a File object for the parent directory
File wallpaperDirectory = new File("/sdcard/Capture/");
// have the object build the directory structure, if needed.
wallpaperDirectory.mkdirs();
//Capture is folder name and file name with date and time
fileOutputStream = new FileOutputStream(String.format(
"/sdcard/Capture/%d.jpg",
System.currentTimeMillis()));
// Here we Resize the Image ...
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 100,
byteArrayOutputStream); // bm is the bitmap object
byte[] bsResized = byteArrayOutputStream.toByteArray();
fileOutputStream.write(bsResized);
fileOutputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
}
and add this in manifest
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
I'm trying to capture a photo with the camera and save it (to be previewed later) and it seems to work with the emulator but when I use it on my GalaxyS - it doesn't save the file (I use RootExplorer to check) and there's no preview.
What am I doing wrong?
Code for saving the file:
public void onPictureTaken(byte[] data, Camera camera) {
FileOutputStream outStream = null;
try {
// Write to SD Card
String filename = "captured_image.jpg";
Log.d("##--File name--##", filename);
outStream = openFileOutput(filename, Context.MODE_WORLD_READABLE); // <9>
outStream.write(data);
outStream.close();
Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length);
} catch (FileNotFoundException e) { // <10>
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
Log.d(TAG, "onPictureTaken - jpeg");
}
Code for displaying:
ImageView imagePrev = (ImageView) findViewById(R.id.image_capturedimagepreview_preview);
Bitmap bmp = null;
try {
bmp = BitmapFactory.decodeStream(openFileInput("captured_image.jpg"));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
imagePrev.setImageBitmap(bmp);
i think i found the problem.
instead of outStream = openFileOutput(filename, Context.MODE_WORLD_READABLE); i should use outStream = getApplicationContext().openFileOutput(filename, Context.MODE_WORLD_READABLE);
but now i'm facing a new one - the file seems to be corrupted cause when i open it with the Android's viewer it's just black and its size is always 18474 bytes.
any ideas?
Where are you storing the image? Have you tried using an absolute path? Do you have the read/write external permission in the manifest?
I used something like this in my program to store an image in a directory the same as my package name.
File path = new File(Environment.getExternalStorageDirectory(), context.getPackageName() );
File imagePath = new File(path,"capture_image.jpg");
EDIT:
If its your first time using the sd card for your given package name you will need to create the directory before trying to write to it.