Im using a camera application in android. I want to pass the byte data from PictureCallback method to another activity and want to display it in that activity.
Camera.PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
}
};
If anyone Knows about it, please help me..
You can do that with extras:
Camera.PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
Intent i = new Intent(context, B.class);
Bundle bundle = new Bundle();
bundle.putByteArray("photo", data);
i.putExtra(bundle );
startActivity(i);
}
};
and the on the B Activity:
Bundle extras = getIntent().getExtras();
byte[] photo = extras.getByteArray("photo");
To show the image on the second activity, you must convert the byte[] into a bitmap and the assign it to a imageView:
Bitmap bitmap = decodeByteArray (photo, 0, photo.length);
ImageView imgView = (ImageView)findViewById(R.id.preview);
imgView.setImageBitmap(bitmap);
I never tried to decode from byte[] to bitmap.. but you can find more information here .
EDIT: @ss1271's comment is right. According to this answer seems that there's a limit of 500Kb. which means that if your image is big you should save it and pass the reference to the new activity like this:
// A ACTIVITY
Camera.PictureCallback jpegCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
String fileName = "tempIMG.png";
try {
FileOutputStream fileOutStream = openFileOutput(fileName, MODE_PRIVATE);
fileOutStream.write(data);
fileOutStream.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
Intent i = new Intent(context, B.class);
Bundle bundle = new Bundle();
bundle.putExtra("photoPath", fileName);
i.putExtra(bundle);
startActivity(i);
}
};
// B ACTIVITY
Bundle extras = getIntent().getExtras();
String photoPath = extras.getString("photoPath");
File filePath = getFileStreamPath(photoPath);
//And do whatever you want to do with the File
You could add the bytes (data) to an Intent via putExtra(String name, byte value) and start a new Activity with that Intent.
Best wishes, Tim
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