Android new image capture from a camera using file provider
To capture a new image from a camera using a FileProvider in Android, you can follow these steps:
Step 1: Add the FileProvider to your AndroidManifest.xml
Add the following code to your AndroidManifest.xml file:
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="your.app.package.name.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
Replace your.app.package.name.fileprovider
with the authority you want to use for your FileProvider.
Step 2: Create a file_paths.xml file
Create a new XML file called file_paths.xml
in the res/xml
directory of your project. This file will define the paths that the FileProvider will use to store the captured images.
For example:
<?xml version="1.0" encoding="utf-8"?>
<paths>
<files-path name="images" path="images/"/>
</paths>
This will create a directory called images
in the app's internal storage, and the FileProvider will use this directory to store the captured images.
Step 3: Create a CameraActivity
Create a new Activity that will handle the camera capture:
public class CameraActivity extends AppCompatActivity {
private static final int REQUEST_IMAGE_CAPTURE = 1;
private Uri imageUri;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_camera);
// Create a FileProvider Uri
imageUri = FileProvider.getUriForFile(this, "your.app.package.name.fileprovider", new File(getExternalCacheDir(), "image.jpg"));
// Start the camera intent
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, REQUEST_IMAGE_CAPTURE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
// Get the captured image Uri
Uri capturedImageUri = imageUri;
// Use the captured image Uri to display the image or perform further processing
//...
}
}
}
In this example, we create a FileProvider Uri using the FileProvider.getUriForFile()
method, and pass it to the camera intent using the EXTRA_OUTPUT
extra. We then start the camera intent and wait for the result in the onActivityResult()
method.
Step 4: Grant permissions
In your AndroidManifest.xml file, add the following permissions:
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
These permissions are required to use the camera and write files to the external storage.
That's it! With these steps, you should be able to capture a new image from a camera using a FileProvider in Android.