I am developing one application in which I have to capture image from camera and add to ImageView
. Here I have a problem while showing image on ImageView
. If I click save button the image is not showing on ImageView
for the first time,but for second time it is showing,please solve my problem, I am unable to find solution for this.
Code Snippet:
fromCamera.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
/* Log.e("OPEN", "CAMERA");
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File f = new File(android.os.Environment
.getExternalStorageDirectory(), "temp.jpg");
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
startActivityForResult(intent, RESUL_CameraT_LOAD_IMAGE);*/
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
File file = new File(Environment.getExternalStorageDirectory()+File.separator +
"fav.jpg");
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
startActivityForResult(intent, RESUL_CameraT_LOAD_IMAGE);
uploadalertDialog.dismiss();
}
});
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Uri selectedImage = null;
Bitmap bitmap;
try {
switch (requestCode) {
case RESUL_CameraT_LOAD_IMAGE:
if (resultCode == Activity.RESULT_OK) {
// imageView.setImageResource(android.R.color.transparent);
Log.e("GET IMAGE", "PATH");
try{
File file = new File(Environment.getExternalStorageDirectory()+File.separator
+ "fav.jpg");
bitmap = decodeSampledBitmapFromFile(file.getAbsolutePath(), 300, 300);
uloadImgView.setImageBitmap(bitmap);
ByteArrayOutputStream byteArray = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 90,
byteArray);
byte[] byte_arr = byteArray.toByteArray();
base64 = Base64.encodeToString(byte_arr, Base64.DEFAULT);
}
catch(Exception e){
e.printStackTrace();
}
}
public static Bitmap decodeSampledBitmapFromFile(String path, int reqWidth, int reqHeight)
{ // BEST QUALITY MATCH
//First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, options);
// Calculate inSampleSize, Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
options.inPreferredConfig = Bitmap.Config.RGB_565;
int inSampleSize = 1;
if (height > reqHeight)
{
inSampleSize = Math.round((float)height / (float)reqHeight);
}
int expectedWidth = width / inSampleSize;
if (expectedWidth > reqWidth)
{
//if(Math.round((float)width / (float)reqWidth) > inSampleSize) // If bigger SampSize..
inSampleSize = Math.round((float)width / (float)reqWidth);
}
options.inSampleSize = inSampleSize;
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeFile(path, options);
}
First of all add the following permission in you app's manifest file
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Then check the following code which I used in my application to set s user's profile pic.
// on click listener for the camera trigger image.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent cameraintent = new Intent(
MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraintent, 101);
}
});
//onActivityResult
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Uri selectedImage = null;
Bitmap bitmap;
try {
switch (requestCode) {
case 101:
if (resultCode == Activity.RESULT_OK) {
if (null != data) {
selectedImage = data.getData(); // the uri of the image
// taken
bitmap = decodeSampledBitmapFromUri(this,
selectedImage, 100, 100);
image.setImageBitmap(bitmap);
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
super.onActivityResult(requestCode, resultCode, data);
}
//Bitmap sampling
public static Bitmap decodeSampledBitmapFromUri(Activity callingActivity,
Uri uri, int reqWidth, int reqHeight) {
try {
InputStream input = callingActivity.getContentResolver()
.openInputStream(uri);
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
options.inSampleSize = 2; // make the bitmap size half of the
// original one
BitmapFactory.decodeStream(input, null, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth,
reqHeight);
input.close();
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
input = callingActivity.getContentResolver().openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(input, null, options);
return bitmap;
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
} catch (IOException e) {// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
//calculate sample size
public static int calculateInSampleSize(BitmapFactory.Options options,
int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and
// keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight
&& (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
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