Develop Reference

android - saving a picture from user's gallery

Here is my code. I'm having problems with showing and saving the pic picked from the user's gallery, whilst when I do it from the camera it works just fine for me.
here is how the user is reffered to his gallery-
if (v.getId() == R.id.btnAddDucuments) {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
alertDialog.setMessage("to add documents");
alertDialog.setPositiveButton("from camera", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// user choose to take a picture
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAM_REQUEST);
}
});
alertDialog.setNegativeButton("from gallery", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// user choose to pick a photo from gallery
Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI), GET_FROM_GALLERY); }
});
alertDialog.show();
and here is how the picture is supposed to be saved. I need it both as a String (so I can use it further on) and in the ImageView that is in this avtivity (named imgTheDocument).
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode==GET_FROM_GALLERY && resultCode == Activity.RESULT_OK) {
Uri selectedImage = data.getData();
Bitmap bitmap = null;
try {
bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), selectedImage);
StringImgDocument = BitMapToString(bitmap);
imgTheDocument.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
When I run this code the activity stops after pressing on the wanted picture. I can't understand where is the problem. I have used this code before and it worked just fine.
I'll appriciate any help!! Thanks:)
my manifest permissions:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

the intent to pick image(This is Error free and works on all android versions!)
Intent intent;
if (Build.VERSION.SDK_INT < 19){
intent = new Intent();
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, GET_FROM_GALLERY);
} else {
intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
startActivityForResult(intent, GET_FROM_GALLERY);
}
This is for onActivityResult
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode==GET_FROM_GALLERY && resultCode == Activity.RESULT_OK) {
//you can both use the selectedImageUri or yourSelectedImagePath for working the Image you picked,send it somewhere or store it in database or etc..
Uri selectedImageUri = data.getData();
String yourSelectedImagePath = selectedImage.tostring;
//I just use the Uri to display the selected image in an imageview
yourImageView.setImageUri(selectedImage);
}

Select image from Gallery using Intent

I am trying to select and bring image from gallery, I could bring for 4.4.2 version but 5.0.0 or above it is not working.
When imageview1 is clicked:
imageview1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent galeri_int = new Intent();
galeri_int.setType("image/*");
galeri_int.setAction(Intent.ACTION_GET_CONTENT);
galeri_int.addCategory(Intent.CATEGORY_OPENABLE);
startActivityForResult(galeri_int,44);
Log.d("tık","tıklandı");
}
});
OnActivityResult:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data){
InputStream stream = null;
if(data !=null){
try {
stream = getContentResolver().openInputStream(data.getData());
bitmapx = BitmapFactory.decodeStream(stream);
stream.close();
Bitmap resized = resize(bitmapx,1000,1000);
imageview.setImageBitmap(resized);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
It is not working for 5.0.0 or above so what should I do?

try this
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Choose Picture"), 1);
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if(resultCode==RESULT_CANCELED)
{
// action cancelled
}
if(resultCode==RESULT_OK)
{
Uri selectedimg = data.getData();
imageView.setImageBitmap(MediaStore.Images.Media.getBitmap(this.getContentResolver(), selectedimg));
}
}

Finally, I solved my problem with changing click listener.
imageview1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i,44);
Log.d("tık","tıklandı");
}
});

bitmap bad quality after set to imageview

I am creating a app that opens camera for user and after image captured it will be shows on ImageView! But the image in ImageView has very bad quality
here is the code:
public class Camera extends AppCompatActivity implements View.OnClickListener {
ImageView imgView;
Button camera, setBackground;
Intent i;
int cameraData = 0;
Bitmap bitmap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.camera);
initialize();
}
private void initialize() {
imgView = (ImageView) findViewById(R.id.bPicture);
camera = (Button) findViewById(R.id.bOpenCamera);
setBackground = (Button) findViewById(R.id.bSetBackground);
camera.setOnClickListener(this);
setBackground.setOnClickListener(this);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK){
Bundle extras = data.getExtras();
bitmap = (Bitmap) extras.get("data");
Bitmap resizedBmp = Bitmap.createScaledBitmap(bitmap, imgView.getWidth(),imgView.getHeight(), false);
imgView.setImageBitmap(resizedBmp);
}
}
#Override
public void onClick(View v) {
switch(v.getId()){
case R.id.bOpenCamera:
i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, cameraData);
break;
case R.id.bSetBackground:
try {
WallpaperManager wallmngr = WallpaperManager.getInstance(this);
wallmngr.setBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
break;
}
}
}
what should I do to increase image quality?

Use something other than the thumbnail. Quoting the documentation for ACTION_IMAGE_CAPTURE, with emphasis added:
The caller may pass an extra EXTRA_OUTPUT to control where this image will be written. If the EXTRA_OUTPUT is not present, then a small sized image is returned as a Bitmap object in the extra field. This is useful for applications that only need a small image. If the EXTRA_OUTPUT is present, then the full-sized image will be written to the Uri value of EXTRA_OUTPUT.
So, specify a Uri in EXTRA_OUTPUT where a full camera image should be written to. Then, use an image-loading library, like Picasso, to load the photo into your ImageView.
Here is a sample app that demonstrates using EXTRA_OUTPUT.

This is how I made it work for me! Assuming you are capturing an image, and would like to show the captured image in a new Activity, you can follow this way:
First on the click of button you can:
public void cameraFuture(View view) // <-- onClick() method of Camera Button
{
Intent intent= new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File file = new File(Environment.getExternalStorageDirectory(),
"MyPhoto.jpg");
outPutfileUri = Uri.fromFile(file);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outPutfileUri);
startActivityForResult(intent, TAKE_PIC);
}
Then on the onActivityResult() method, you can do this way:
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == TAKE_PIC && resultCode==RESULT_OK){
Toast.makeText(this, outPutfileUri.toString(),Toast.LENGTH_LONG).show();
Intent bitIntent = new Intent(this, CameraTake.class);
bitIntent.putExtra("imageUri", outPutfileUri);
startActivity(bitIntent);
finish();
}
}
And in the next Activity, you can receive the file this way:
Intent receiveIntent = getIntent();
uri = receiveIntent.getParcelableExtra("imageUri");
if (savedInstanceState == null) {
Bundle extras = getIntent().getExtras();
if(extras == null) {
receiveImg= null;
} else {
receiveImg= extras.getString("PASSER");
}
} else {
receiveImg= (String) savedInstanceState.getSerializable("PASSER");
}
File imgFile = new File(Environment.getExternalStorageDirectory(),"MyPhoto.jpg");
if(imgFile.exists()){
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
ImageView myImage = (ImageView) findViewById(R.id.camOut);
myImage.setImageBitmap(myBitmap);
}

android finish sometimes restarting app

I'm working on an app which allows user to choose a picture from gallery and then I start a activity to crop it.
I want to send the cropped image back to calling activity.
Both activities extend AppCompatActivity.
Calling activity:
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
// start image crop activity
String dataString = data.getDataString();
Intent intent=new Intent(this, CropPhotoActivity.class);
intent.putExtra("SELECTED_PICTURE_FOR_CROP", dataString);
startActivityForResult(intent, CROP_PICTURE);
}
else if(requestCode == CROP_PICTURE) {
// get cropped bitmap
Bitmap bitmap = (Bitmap) data.getParcelableExtra("CROPPED_IMAGE");
profilePhoto.setImageBitmap(bitmap);
}
}
}
In the crop image activity, I have a button, which on click should return back to calling activity:
Button okButton = (Button)findViewById(R.id.ok_button);
okButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent returnIntent = new Intent();
returnIntent.putExtra("CROPPED_IMAGE", cropped_bitmap);
setResult(RESULT_OK, returnIntent);
finish(); // sometimes restarts app
}
});
Sometimes the bitmap gets returned correctly whereas sometimes it does not and the app gets restarted without error. Why is this happening? Does putExtra have anything to do with bitmap size or anything else?

You could try substituting
AppcompatActivity.this.finish()
(where AppcompatActivity is your class name)
for:
finish(); // sometimes restarts app
Or, create a method in the calling Activity:
public static void cropComplete(Activity activity)
{
activity.startActivity(activity, AnotherActivity.class);
activity.finish();
}

Theres's a limit for data length passed as extra in a intent. Try not passing the dataString value; instead you should save the image as a temporary file, pass the path in the intent and then load the image from your calling activity (or you can just save the dataString in a static helper class).
In the crop activity (saving bitmap code from Save bitmap to location):
// Save bitmap
String filename = "tempImage.png";
File sd = Environment.getExternalStorageDirectory();
File dest = new File(sd, filename);
FileOutputStream out = null;
try {
out = new FileOutputStream(dest);
bmp.compress(Bitmap.CompressFormat.PNG, 100, out); // bmp is your Bitmap instance
// PNG is a lossless format, the compression factor (100) is ignored
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (out != null)out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
// Get image file path
String path = dest.getAbsolutePath();
// Set result with image path
Intent returnIntent = new Intent();
returnIntent.putExtra("CROPPED_IMAGE_PATH", path);
setResult(RESULT_OK, returnIntent);
finish();
In the caller activity:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if(requestCode == CROP_PICTURE) {
// Get image file path
String imagePath = data.getStringExtra("CROPPED_IMAGE_PATH");
// Load image
Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
}
}

Image not getting displayed in ImageView in mobile but working in AVD

I tried creating a new intent to get an image file and on result of the intent i got the image uri and set to the imageView but this worked fine in my AVD and even in Bluestacks but is NOT working in my phone (installed after converting to an apk). Image selection screen appears but then after selecting the image only a blank gets displayed in the imageView.
here's my code for on click the imgView
imgView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select contact Image"),1);
}
});
my on Result from intent method
public void onActivityResult(int reqCode,int resCode,Intent data)
{
super.onActivityResult(reqCode,resCode,data);
if(resCode==RESULT_OK) if (reqCode == 1) {
imgView.setImageURI(data.getData());
imgUri = data.getData();
}
}
Note: My image View is a scaled image view of 100*100 px

try this instead
//this code calls the app or phone to pick an image from the gallery
pick = 0;
Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, pick);
and in the activity on result use this
//process image gotten from gallery
if (requestCode == pick && resultCode == getApplicationContext().RESULT_OK) {
Uri imgUri = data.getData();
Bitmap bitmap = null;
try {
bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(imgUri));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ImageView.setImageBitmap(bitmap);
}