Basically what I'm trying to do is create a simple app that uses the default camera app to take a picture, then I want to display that image in a new activity within an ImageView, but everything I've tried has resulted in
java.io.FileNotFoundException: /storage/emulated/0/imageToProcess.jpg: open failed: ENOENT (No such file or directory)
I've included the correct permissions (maybe even too many) in the manifest:
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
and I'm also manually requesting permissions if need be in the main activity:
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if(checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.CAMERA}, 1);
}
if(checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
}
if(checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
}
}
so I don't think the issue is with read/write permissions.
In my main activity's xml file, I've created a button with an onClick listener that calls the following method:
public void openCamera(View view) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File f = new File(Environment.getExternalStorageDirectory() + File.separator + "imageToProcess.jpg");
imgUri = Uri.fromFile(f);
intent.putExtra("imgUri", imgUri.toString());
startActivityForResult(intent, TAKE_PICTURE);
}
Here's the onActivityResult() method I defined to create a new intent and pass the uri to the new activity:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
if(requestCode == TAKE_PICTURE && resultCode == Activity.RESULT_OK) {
Intent camResult = new Intent(this, ShowCameraResult.class);
camResult.putExtra("imgUri", imgUri.toString());
startActivity(camResult);
}
}
NOTE: imgUri and TAKE_PICTURE are defined at the top of the class as protected static final int TAKE_PICTURE = 1; and private Uri imgUri;
Lastly, here is my ShowCameraResult activity
public class ShowCameraResult extends AppCompatActivity {
private Bitmap mImageBitmap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_camera_result);
ImageView imageView = (ImageView)findViewById(R.id.imageView);
String filePath = getIntent().getStringExtra("imgUri");
Log.d("ShowCameraResult", "directory: " + filePath);
try {
mImageBitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.parse(filePath));
imageView.setImageBitmap(mImageBitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
}
The Log.d method call above returns
ShowCameraResult: directory: file:///storage/emulated/0/imageToProcess.jpg
This leads me to believe that the image result from the camera isn't actually being saved into my imageToProcess.jpg file, but I could be very wrong as this is the first real android project I've worked on.
So my question is: Where did I go wrong?
Any help is greatly appreciated, thank you!
ITs returning a file, not a content resolver uri. Just decode the file with BitmapFactory.
Related
I created a button that lets the user choose between "Take picture with camera" and "Select picture from gallery".
When the picture is taken/chosen, I then display it in an ImageView of the next activity which I do by passing the URI of the file created to store the taken/selected picture.
It works as expected when the user takes a picture with his camera but when he selects an image from gallery, no image is shown in the next activity despite both intents (take a picture and select a picture) being coded the same.
My question(s): Why isn't the image displayed in the next activity ONLY when picked from the gallery ? Or how should I proceed to display it ?
Intent to open camera (working fine):
private void openCameraToTakePictureIntent() {
Log.d(TAG, "Method for Intent Camera started");
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File
}
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(this,
"com.emergence.pantherapp.fileprovider", photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
}
Intent to access gallery and pick an image:
private void openGalleryIntent() {
Log.d(TAG, "Method for Intent Gallery started");
Intent galleryIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.INTERNAL_CONTENT_URI);
if (galleryIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File
}
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(this,
"com.emergence.pantherapp.fileprovider", photoFile);
galleryIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(galleryIntent, PICK_IMAGE);
}
}
}
Then here's the onActivityResult: (currentPhotoPath is the absolute path of the file created to store the image)
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK && requestCode == 1) {
Log.d(TAG, currentPhotoPath);
Intent intent = new Intent(this, ModifyPictureActivity.class);
intent.putExtra("USER_IMAGE", currentPhotoPath);
startActivity(intent);
} else if (resultCode == Activity.RESULT_OK && requestCode == 2) {
Log.d(TAG, currentPhotoPath);
Intent intent = new Intent(this, ModifyPictureActivity.class);
intent.putExtra("USER_IMAGE", currentPhotoPath);
startActivity(intent);
}
}
Below is how the image is displayed in the following activity:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_modify_picture);
Intent intent = getIntent();
String imageUri = intent.getStringExtra("USER_IMAGE");
if (imageUri != null) {
Log.d(TAG, imageUri);
} else {
Log.d(TAG, "imageUri was null");
}
image = findViewById(R.id.picture);
image.setImageURI(Uri.parse(imageUri));
}
I made sure to have the READ_EXTERNAL_STORAGE in the manifest and the xml layout is just set to "match_parent" for height and width but I can add them if it's relevant.
Few Intent actions use EXTRA_OUTPUT. Mostly, that is an ACTION_IMAGE_CAPTURE thing.
More typically, an Intent for getting a piece of content (ACTION_PICK, ACTION_GET_CONTENT, ACTION_OPEN_DOCUMENT, ACTION_CREATE_DOCUMENT, ACTION_OPEN_DOCUMENT_TREE, etc.) return a Uri from the content supplier in the Intentdelivered toonActivityResult(). Given your implementation, that would be data.getData()to get thatUri`.
You can then use a ContentResolver and openInputStream() to get an InputStream on the content identified by the Uri. In your case, for example, you could use that InputStream to copy the bytes to a FileOutputStream to make your own local copy of the content.
Note that you only have short-term access to the content identified by the Uri.
I am creating an app from which the user can download other apps and install them. Right now it works fine, but It does not delete the apk after the installation. I have tried using BroadcastRecievers but they do not seem to understand when the application is already installed.
At the moment I am trying to startActivityForResult and once that is finished, delete the apk from Files.
public class Updater {
private static BroadcastReceiver onDownloadComplete = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Logger.d("Download completed.");
File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getPath(), downloadApp.getDownloadKey());
Logger.i("Opening: " + file.getAbsolutePath());
Intent openDownloadIntent = getOpenDownloadedApkIntent(context, file);
RelativeLayout progressView = progressViewReference.get();
if (progressView!= null) {
progressView.setVisibility(View.GONE);
}
try {
((Activity) context).startActivityForResult(openDownloadIntent, getResultCode());
} catch (ActivityNotFoundException e) {
// TODO: more robust error handling (show dialog or something)
Logger.e("Exception when launching download intent, message:" + e.getMessage());
}
}
};
private static Intent getOpenDownloadedApkIntent(Context context, File file) {
// The type of intent to use to open the downloaded apk changed in Android N (7.0)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
Uri path = FileProvider.getUriForFile(context,
context.getApplicationContext().getPackageName() + ".utils.DownloadedFileProvider",
file);
Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
intent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setData(path);
return intent;
} else {
Uri uri = Uri.fromFile(file);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
return intent;
}
}
}
So I have the Updater class where the 2 methods are (see my code above). And this class is being called by an adapter, so there is nowhere to put the onActivityResult. I tried placing it in the Activity that calls the Adapter, which calls the Updater class but it does not reach there even with the EXTRA_RETURN_RESULT
So my question is.. how can I call onActivityResult here once the installation is finished.
this is pseudo code for you activity
class DownloadActivity extends AppCompatActivity {
// some of your code here
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
// in here you are checking if requestCode is equal to Intent.ACTION_INSTALL_PACKAGE
if(requestCode == Intent.ACTION_INSTALL_PACKAGE and resultCode == ResultCode.OK) {
// Start activity for deleting file
startActivityForResult(Intente.ACTION_DELETE);
}
if(requestCode == Intent.ACTION_DELETE and resultCode == ResultCode.OK) {
// Handling actions after deleted
}
}
}
OnActivityResult is called by android, when action is ended. You do not have to call this method only inside this method you define what have to be done.
Where those onDownloadComplete and getOpenDownloadedApkIntent are defined and called?
I have problem with permissions. What should I do to stop my app from crashing?
MainActivity.java
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, 1);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == 1 && resultCode == RESULT_OK && data != null){
Uri selectedImage = data.getData();
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), selectedImage);
ImageView imageView = (ImageView)findViewById(R.id.imageView);
imageView.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
}
}
AndroidManifest.xml
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
I just added this in my OnCreate method
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 225);
And it seems to work, is there any better solution?
If putting in your onCreate() works I would check whether you put it in the manifest in the correct place because that has caused me issues in the past.
Make sure <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> is after the first manifest closing tag and before the first <Application ...
For example:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="net.mypackagename">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<application...
try this :
//check permission is granted or no
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
{
requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, RESULT_LOAD_IMG);
}
else
{
//your code
}
If your target build version is API 23 or higher, just check that the permission is granted or not.
Go to Settings -> Apps and then tap on your app. In Permissions option enable the Storage permission. But it is not the permanent solution.
Well i do something like u want. I give u simply code how to do this :)
Here i checking permission(i call this method in fragment, make this in activity)
#TargetApi(23)
public void checkStoragePermission() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
if (settingsDrawerFragment != null) {
settingsDrawerFragment.onPermissionGranted();
}
return;
}
if (this.checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager
.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
REQUEST_CODE_EXTERNAL_STORAGE);
return;
}
if (settingsDrawerFragment != null) {
settingsDrawerFragment.onPermissionGranted();
}
}
This check permission with auto message
Also i make onRequestPermissions
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[]
grantResults) {
switch (requestCode) {
case REQUEST_CODE_AUDIO_RECORD:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
startBrowseActivity();
} else {
Utils.showToast(this, getString(R.string.audio_permission_denied));
}
break;
case REQUEST_CODE_EXTERNAL_STORAGE:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (settingsDrawerFragment != null) {
settingsDrawerFragment.onPermissionGranted();
}
} else {
if (settingsDrawerFragment != null) {
closeSettingsDrawer();
}
Utils.showToast(this, getString(R.string.storage_permission_denied));
}
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
break;
}
}
Remember to make methods in activity. On fragment check it.
Finally i make something like this to check permissions in fragment
public void setHomeStreamSource(int position) {
if (position == STORAGE_CLOUD_CACHE) {
preferenceHelper.putInt(getString(R.string.preferences_usb_prefs), getString(R.string
.preferences_video_source), MainActivity.SOURCE_CLOUD);
closeDrawer();
Utils.showToast(activity, getString(R.string.source_selected));
} else if (position == STORAGE_USB) {
((MainActivity) activity).checkStoragePermission();
}
}
Hope this sample code help u well
I need help.
I have a project like Meme Generator, I have two Activities.
Activity_main (User Interface and has a button to trigger "choose camera option"
and Creatememe(as Second Activity to show the captured image from Activity_main).
Now my Problem is, When I'm using Android Version 4.0.4 to lower versions The image is passing through the Second Activity.
while using Android version higher that 4.0.4 the Image didn't pass to Second Activity, The image only shows inside Activity_main.
preview.setImageBitmap(bitmap) //<- shows image inside Activity_main.
Here are my codes for AndroidManifest file
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-feature android:name="android.hardware.camera"/>
Then here is my code for Activity_main
try {
InputStream input = getContentResolver().openInputStream(selectedImageUri);
final Bitmap bitmap = BitmapFactory.decodeStream(input);
preview.setImageBitmap(bitmap);
preview.setDrawingCacheEnabled(true);
Bitmap b= preview.getDrawingCache();
Intent i = new Intent(this, CreateMeme.class);
i.putExtra("Bitmap", b);
startActivity(i);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
Then here's my code for Second Activity
imageView = (ImageView) findViewById(R.id.imageView2);
Intent intent = getIntent();
Bitmap bitmap = intent.getParcelableExtra("Bitmap");
imageView.setImageBitmap(bitmap);
on the OnClickListener of "choose camera option" use the next method
static final int REQUEST_IMAGE_CAPTURE = 1;
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
Then,override OnActivityResult and handle the result like this
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Intent intent = new Intent(MainActivity.this,CreateMeme.class);
intent.putExtras(extras);
startActivity(intent);
}
}
On your CreateMeme.class handle the extras like that -
imageView = (ImageView) findViewById(R.id.imageView2);
Intent intent = getIntent();
Bundle extras = intent.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
imageView.setImageBitmap(bitmap);
For more information, Refer this link
I am new to Android programming and I'm writing an application in Java that opens the camera take a photo and save it. I made it via Intents but I can't see onActivityResult running.
I have tested it into my phone (Samsung Galaxy S) and when I take the photo I receive a preview of that photo having two buttons one Save and the other Cancel. I haven't added something to my code to do this so I think it's something that camera does. I want after capturing the image to run onActivityResult (after I press the Save button on the preview).
But how I'm going to return a result to start onActivityResult after pressing the Button Save on the preview?
I FORGOT to tell that after i press save my entire app is terminated.
Here is my Code
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TakePicButton = (Button) findViewById(R.id.TakePicture);
TakePicButton.setOnClickListener((android.view.View.OnClickListener) this);
}
#Override
public void onDestroy(){
super.onDestroy();
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// Image captured and saved to fileUri specified in the Intent
Toast.makeText(this, "Image saved to:\n" + data.getData(), Toast.LENGTH_LONG).show();
} else if (resultCode == RESULT_CANCELED) {
Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT);
} else {
Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT);
}
}
public void onClick(View v) {
// TODO Auto-generated method stub
if(v.getId() == R.id.TakePicture){
// create Intent to take a picture and return control to the calling application
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); // create a file to save the image
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
// start the image capture Intent
startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
}
}
try the below code, you will have to modify it a bit, it will help you get From Library and From Camera both, the SELECT_PICTURE is used for getting image from library
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case SELECT_PICTURE:
Uri selectedImageUri = data.getData();
filemanagerstring = selectedImageUri.getPath();
selectedImagePath = getPath(selectedImageUri);
if (selectedImagePath != null)
myFile = new File(selectedImagePath);
else if (filemanagerstring != null)
myFile = new File(filemanagerstring);
if (myFile != null) {
Bitmap bmp_fromGallery = decodeImageFile(selectedImagePath);
break;
case CAMERA_REQUEST:
Bitmap bmp_Camera = (Bitmap) data.getExtras().get("data");
break;
default:
break;
}
}