i was building my app on API level 23 ,then i have changed API level to 25 the same code is not working now , here's my code :
public class expert extends Activity implements View.OnClickListener {
Button btnsetwall;
ImageButton imgbtntakeph;
ImageView Imview;
static final int REQUEST_IMAGE_CAPTURE = 1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_expert);
Imview = (ImageView) findViewById(R.id.imageView22);
btnsetwall = (Button) findViewById(R.id.button2);
btnsetwall.setOnClickListener(this);
}
#Override
public void onClick(View v) {
dispatchTakePictureIntent();
}
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
Imview.setImageBitmap(imageBitmap);
// CALL THIS METHOD TO GET THE URI FROM THE BITMAP
Uri tempUri = getImageUri(getApplicationContext(), imageBitmap);
// CALL THIS METHOD TO GET THE ACTUAL PATH
Toast.makeText(getBaseContext(),"Here "+ getRealPathFromURI(tempUri), Toast.LENGTH_LONG).show();
}
}
public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}
public String getRealPathFromURI(Uri uri) {
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
return cursor.getString(idx);
}
when i try to pick image from gallery or to get captured image my app crashes and i get UriString Exception
can any one tell the reason ?? and how to solve !
thanks in advance
Related
Good afternoon everyone,
I'm developing a really simple app for Android that's suppose to get a picture from gallery, displays it and show its coordinates in a TextView (latitude and longitude).
I have an ExifInterface object, but the tags (such as TAG_GPS_LATITUDE and TAG_GPS_LONGITUDE) return null.
I've tried many different solutions found on StackOverflow but none of them worked, so I thought of making a new question showing my code.
MainActivity.java:
public class MainActivity extends AppCompatActivity {
private static int RESULT_LOAD_IMAGE = 1;
TextView textView;
ImageView imageView;
Uri imgUri;
String realPath;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = (TextView) findViewById(R.id.txtView);
imageView = (ImageView) findViewById(R.id.imgView);
Button buttonLoadImage = (Button) findViewById(R.id.buttonLoadPicture);
buttonLoadImage.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View arg0){
openGallery(arg0);
}
});
}
public void openGallery(View view){
Intent i = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data){
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK){
imgUri = data.getData();
imageView.setImageURI(imgUri);
realPath = getRealPathFromURI(this, imgUri);
try {
ExifInterface ei = new ExifInterface(realPath);
textView.append("Latitude: " + ei.getAttribute(ExifInterface.TAG_GPS_LATITUDE) + " Longitude: " + ei.getAttribute(ExifInterface.TAG_GPS_LONGITUDE));
} catch (IOException e) {
e.printStackTrace();
}
}
}
public String getRealPathFromURI(Context context, Uri contentUri) {
Cursor cursor = null;
try {
String[] proj = { MediaStore.Images.Media.DATA };
cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
}
Thank you.
i'm trying to do an activity which can show picture from gallery. But my Activity needs to remember bitmap uri for another time so it can always open that picture.
here is my .java
edited
i added something else to convert uri to string then string to uri but it doesn't work. Can someone help?
public class DersProgram extends Activity { private static int RESULT_LOAD_IMAGE = 1;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dersprogrami);
Button buttonLoadImage = (Button) findViewById(R.id.button1);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
Uri uri = data.getData();
String BitmapURI;
BitmapURI = uri.toString();
uri = Uri.parse(BitmapURI);
SharedPreferences sharedPreferences = getSharedPreferences("BitmapURI", Context.MODE_PRIVATE);
sharedPreferences.edit().putString("BitmapURI", "your URI as a String").apply();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(uri,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.resim);
Bitmap bmp = null;
try {
bmp = getBitmapFromUri(uri);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
imageView.setImageBitmap(bmp);
}
}
private Bitmap getBitmapFromUri(Uri uri) throws IOException {
ParcelFileDescriptor parcelFileDescriptor =
getContentResolver().openFileDescriptor(uri, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
Bitmap image = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
return image;
}
}
I want to open picture which is called before. Please help me(also i am a beginner) sorry for my English.
As said, use SharedPreferences.
store your bitmapURI as a String in your Activity:
SharedPreferences sharedPreferences = getSharedPreferences("some string", Context.MODE_PRIVATE);
sharedPreferences.edit().putString("BitmapURI", "your URI as a String").apply();
and retrieve it whenever your want:
String bitmapURI = sharedPreferences.getString("BitmapURI", "default string if BitmapURI is not set");
i am new to android and i am trying to make my phone cam take a picture and display it in an image view. When the image is captured, it is saved correctly but after that the app stops working when the image should be displayed in an image view. Any help is appreciated. I searched some topics but still nothing works.
Here is the code:
package myfirstapp.myapps.me.camera;
import ...
public class MainActivity extends ActionBarActivity {
ImageButton camBtn;
ImageView imageView;
ScrollView scrollView;
private File imageFile;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void OpenCam(View view) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
imageFile=new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),"image.jpg");
Uri tempURI=Uri.fromFile(imageFile);
intent.putExtra(MediaStore.EXTRA_OUTPUT, tempURI);
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
startActivityForResult(intent, 0);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 0)//==0 the same where startActivityForResult(intent, 0) so we are in the same process
{
switch (resultCode){
case Activity.RESULT_OK:
if(imageFile.exists())
{
Toast.makeText(MainActivity.this, "Image was saved at "+imageFile.getAbsolutePath(), Toast.LENGTH_SHORT)
.show();
Bitmap myBitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath());
ImageView myImage = (ImageView) findViewById(R.id.imageView);
myImage.setImageBitmap(myBitmap);
}
else
{
Toast.makeText(MainActivity.this, "Image wasn't saved", Toast.LENGTH_SHORT)
.show();
}
break;
case Activity.RESULT_CANCELED:
Toast.makeText(MainActivity.this, "Image capture was cancelled", Toast.LENGTH_SHORT)
.show();
break;
}
}
}
}
Stacktrace
Caused by: java.lang.RuntimeException: Failure delivering result
ResultInfo{who=null, request=0, result=-1, data=null} to activity
{myfirstapp.myapps.me.camera/myfirstapp.myapps.me.camera.MainActivity}:
java.lang.NullPointerException at
android.app.ActivityThread.deliverResults(ActivityThread.java:3410) at
android.app.ActivityThread.performResumeActivity(ActivityThread.java:2817)
at
android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2859)
Please go through this Code:
public static final int REQUEST_IMAGE_CAPTURE = 1;
public static final int RESULT_LOAD_IMAGE = 10;
private Bitmap myBitmap;
ImageView myImage ;
public void OpenCam(View view) {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null)
{
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
And also,
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK)
{
Bundle extras = data.getExtras();
myBitmap= (Bitmap) extras.get("data");
myImage = (ImageView) findViewById(R.id.imageView);
myImage.setImageBitmap(myBitmap);
}
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
myBitmap= BitmapFactory.decodeFile(picturePath);
// photoUri = picturePath;
myImage.setImageBitmap(myBitmap);
}
}
Why are you first saving and trying to show the saved image file. Use the returned data from onActivityResult. Before file is actually created in the memory, broadcast is sent so it can refresh the directory and show the new file. But better is to use what camera intent is returning as data.
Replace your this code
Bitmap myBitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath());
ImageView myImage = (ImageView) findViewById(R.id.imageView);
myImage.setImageBitmap(myBitmap);
with this
ImageView myImage = (ImageView) findViewById(R.id.imageView);
Bitmap photo = (Bitmap) data.getExtras().get("data");
myImage.setImageBitmap(photo);
first : comment the line
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // no need to write for capture camera
second : use this line
imageFile=new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/abc); // abc folder name
instead of
imageFile=new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),"image.jpg");
Note : your code work upto kitkat but lollipop it will crash because in lollipop imageFile return null so Uri failed to convert in file . Hope your problem will resolve . and one more thing before open camera u should check that sdcard permission .
I have created an activity that upon button click user are able to upload a picture from their device gallery, which would get cast to an imageview. The problem is that it is only able to retrieve image from device gallery, not from phone camera gallery, or from phone google drive folder. I would want that its able to upload any picture from their phone, regardless of the source.
Below is the code:
Button buttonLoadImage = (Button) findViewById(R.id.btnPictureSelect);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK
&& null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.profilePicturePreview);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
private byte[] readInFile(String path) throws IOException {
// TODO Auto-generated method stub
byte[] data = null;
File file = new File(path);
InputStream input_stream = new BufferedInputStream(new FileInputStream(
file));
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
data = new byte[16384]; // 16K
int bytes_read;
while ((bytes_read = input_stream.read(data, 0, data.length)) != -1) {
buffer.write(data, 0, bytes_read);
}
input_stream.close();
return buffer.toByteArray();
}
Any help would be greatly appreciated.
Update:
private static final int READ_REQUEST_CODE = 42;
in the code
Button buttonLoadImage = (Button) findViewById(R.id.btnPictureSelect);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent imageIntent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
imageIntent.addCategory(Intent.CATEGORY_OPENABLE);
imageIntent.setType("image/*");
imageIntent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(imageIntent , READ_REQUEST_CODE);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == READ_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
Uri uri = null;
if (data != null) {
uri = data.getData();
Log.i(TAG, "Uri: " + uri.toString());
showImage(uri);
}
}
}
private void showImage(Uri uri) {
// TODO Auto-generated method stub
ImageView imageView = (ImageView) findViewById(R.id.profilePicturePreview);
imageView.setImageUri(Uri.parse(new File("path_to_your_image".toString()));
}
error:
The method parse(String) in the type Uri is not applicable for the arguments (File)
in line
imageView.setImageUri(Uri.parse(new File("path_to_your_image".toString()));
Update 2:
private void showImage(Uri uri) {
// TODO Auto-generated method stub
ImageView imageView = (ImageView) findViewById(R.id.profilePicturePreview);
imageView.setImageUri(Uri.fromFile(new File("/sdcard/myimage.jpg")));
error:
The method setImageUri(Uri) is undefined for the type ImageView
It would be better to use Intent to search the image type files available in your device.
Intent imageIntent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
imageIntent.addCategory(Intent.CATEGORY_OPENABLE);
imageIntent.setType("image/*");
imageIntent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(imageIntent , READ_REQUEST_CODE); // set READ_REQUEST_CODE to 42 in your class
Now, process your results in the onActivityResult() method.
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == READ_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
Uri uri = null;
if (data != null) {
uri = data.getData();
Log.i(TAG, "Uri: " + uri.toString());
showImage(uri);
}
}
I'm trying to save the path of an image imported from the gallery using this method:
case R.id.media:
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
return true;
Here is the on activity result method:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
final Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = (cursor.getString(columnIndex));
cursor.close();
mImage = picturePath;
ImageView imageView = (ImageView) findViewById(R.id.note_image);
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
imageView.setClickable(true);
imageView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent viewImageIntent = new Intent(android.content.Intent.ACTION_VIEW, selectedImage);
startActivity(viewImageIntent);
}
});
}
}
And here is the populate field method:
mImage =(note.getString(
note.getColumnIndexOrThrow(NotesDbAdapter.KEY_IMAGE)));
But this is not working, the path doesnt get saved and when i close the activity and start the activity again, the image is gone. How can i fix this?