Source link: https://github.com/ravi8x/Android-Image-Picker-and-Cropping
How to create image picker and Cropping in Android ? here an example Android choosing image from camera or gallery with Crop functionality
Android Choosing Image from Camera or Gallery with Crop Functionality
Android sample project demonstrating choosing an image from gallery or camera with the cropping functionality.
| Complete Tutorial | Apk | Video Demo |
|---|
uCrop
Thanks to Yalantis for providing such a beautiful cropping (uCrop) library. This example uses the uCrop library for cropping functionality.
How to Use
Follow the below simple steps to add the library into your project.
- Add file_provider.xml to your res -> xml foler.
<?xml version="1.0" encoding="utf-8"?> <paths>
<external-cache-path
name="cache"
path="camera" /> </paths> - In AndroidManifext.xml, add CAMERA, DEXTER and STORAGE permissions. Add UCrop activity and FileProvider paths.
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="info.androidhive.imagepicker">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme"
tools:ignore="GoogleAppIndexingWarning">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- Image Picker activity -->
<activity android:name=".ImagePickerActivity" />
<!-- uCrop cropping activity -->
<activity
android:name="com.yalantis.ucrop.UCropActivity"
android:screenOrientation="portrait"
android:theme="@style/AppTheme.NoActionBar" />
<!-- cache directory file provider paths -->
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${
applicationId
}
.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>
</application> </manifest>- Add Dexter and uCrop dependencies to your app/build.gradle
dependencies {
//...
implementation "com.karumi:dexter:5.0.0"
implementation com.github.yalantis:ucrop:2.2.2
}
-
Copy ImagePickerActivity.java to your project.
-
Launch ImagePickerActivity by passing required intent data. Once the image is cropped, you can received the path of the cropped image in onActivityResult method.
public class MainActivity extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
public static final int REQUEST_IMAGE = 100;
@BindView(R.id.img_profile)
ImageView imgProfile;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
// my button click function
void onProfileImageClick() {
Dexter.withActivity(this)
.withPermissions(Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE)
.withListener(new MultiplePermissionsListener() {
@Override
public void onPermissionsChecked(MultiplePermissionsReport report) {
if (report.areAllPermissionsGranted()) {
showImagePickerOptions();
}
else {
// TODO - handle permission denied case
}
}
@Override
public void onPermissionRationaleShouldBeShown(List<PermissionRequest> permissions, PermissionToken token) {
token.continuePermissionRequest();
}
}
).check();
}
private void showImagePickerOptions() {
ImagePickerActivity.showImagePickerOptions(this, new ImagePickerActivity.PickerOptionListener() {
@Override
public void onTakeCameraSelected() {
launchCameraIntent();
}
@Override
public void onChooseGallerySelected() {
launchGalleryIntent();
}
}
);
}
private void launchCameraIntent() {
Intent intent = new Intent(MainActivity.this, ImagePickerActivity.class);
intent.putExtra(ImagePickerActivity.INTENT_IMAGE_PICKER_OPTION, ImagePickerActivity.REQUEST_IMAGE_CAPTURE);
// setting aspect ratio
intent.putExtra(ImagePickerActivity.INTENT_LOCK_ASPECT_RATIO, true);
intent.putExtra(ImagePickerActivity.INTENT_ASPECT_RATIO_X, 1);
// 16x9, 1x1, 3:4, 3:2
intent.putExtra(ImagePickerActivity.INTENT_ASPECT_RATIO_Y, 1);
// setting maximum bitmap width and height
intent.putExtra(ImagePickerActivity.INTENT_SET_BITMAP_MAX_WIDTH_HEIGHT, true);
intent.putExtra(ImagePickerActivity.INTENT_BITMAP_MAX_WIDTH, 1000);
intent.putExtra(ImagePickerActivity.INTENT_BITMAP_MAX_HEIGHT, 1000);
startActivityForResult(intent, REQUEST_IMAGE);
}
private void launchGalleryIntent() {
Intent intent = new Intent(MainActivity.this, ImagePickerActivity.class);
intent.putExtra(ImagePickerActivity.INTENT_IMAGE_PICKER_OPTION, ImagePickerActivity.REQUEST_GALLERY_IMAGE);
// setting aspect ratio
intent.putExtra(ImagePickerActivity.INTENT_LOCK_ASPECT_RATIO, true);
intent.putExtra(ImagePickerActivity.INTENT_ASPECT_RATIO_X, 1);
// 16x9, 1x1, 3:4, 3:2
intent.putExtra(ImagePickerActivity.INTENT_ASPECT_RATIO_Y, 1);
startActivityForResult(intent, REQUEST_IMAGE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
if (requestCode == REQUEST_IMAGE) {
if (resultCode == Activity.RESULT_OK) {
Uri uri = data.getParcelableExtra("path");
try {
// You can update this bitmap to your server
Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri);
// loading profile image from local cache
loadProfile(uri.toString());
}
catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
Once the Uri is received, you can create a bitmap and send to your server or preview on the screen.
Intent Parameters:
| Param | Description |
|---|---|
| INTENT_IMAGE_PICKER_OPTION | To define source of the image Camera or Gallery. The values could be REQUEST_IMAGE_CAPTURE or REQUEST_GALLERY_IMAGE |
| INTENT_LOCK_ASPECT_RATIO | Pass true to lock the aspect ratio. (16x9, 1x1, 3:4, 3:2) |
| INTENT_ASPECT_RATIO_X | Width of aspect ratio (ex: 3) |
| INTENT_ASPECT_RATIO_Y | Height of the aspect ratio (ex: 4) |
| INTENT_IMAGE_COMPRESSION_QUALITY | The image compression quality 0 - 100. The default value is 80 |
| INTENT_SET_BITMAP_MAX_WIDTH_HEIGHT | Pass true to limit the maximum width and height of the bitmap |
| INTENT_BITMAP_MAX_WIDTH | The maximum width of the cropped image |
| INTENT_BITMAP_MAX_HEIGHT | The maximum height of the cropped image |
If you want additional options, you can customize the image picker activity.
Deleting Cached Images:
While the image are taken with camera, they will stored in cached directory. You can clear the cached images once the bitmap is utilized.
// Clearing older images from cache directory // don t call this line if you want to choose multiple images in the same activity // call this once the bitmap(s) usage is over ImagePickerActivity.clearCache(this);