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How To Implement A Crop Image In Android?

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Image cropping is to improve the quality of a photo by removing the unnecessary parts of an image (or using a cropping tool). And you will get a transformed image.

Somish Kakadiya

July 19, 2022

You have clicked many photos and cropped some of them several times with an image cropping tool. It gives you a perfect clicked photo by cropping the unwanted area of an image. 

Are you aware of the image cropping library for Android? Or do you know about cropping images with source code in Android? This blog will make you learn all about image cropping in Android.

How To Crop Image

Place the crop tool on one corner of the image and then click-and- drag to select the area you want to keep. The cropped area will appear darker (or lighter, depending on this demo you use). When you are satisfied with the new composition, click the top right corner done button.

Advantages Of Crop

Focus on the main subject

Improve overall composition

Remove distracting elements

“Zoom in” on a subject

Change the orientation

Output

As an output of following demo, it’ll first ask for to take image from gallery or camera then set in crop module, user can crop selected image part and this cropped image will be show in main activity.

Create Activity And Add ImageView For Output Image And Button For Image Selection.

Create Layout For Crop Image.

Create Layout For Menu Crop File.

Create ImagePickerActivity. 

Here, We Will Get Image From Gallery Or Camera And Show On Crop Activity And Also Add Runtime Storage Permission.

Create CropImageActivity.

Here We Will Use CropImageView Library.

OnSaveInstanceState() :- Saves the state upon rotating the screen/restarting the activity.

OnRestoreInstanceState() :- Restores the state upon rotating the screen/restarting the activity.

OnSetImageUriComplete() :- Get cropped image uri from imageview.

OnGetCroppedImageComplete() :- Get imagepath of selected image from image picker activity.

ASPECT_RATIO_X :- (Rectangle width) DEFAULT = 100.

ASPECT_RATIO_Y :- (Rectangle height) DEFAULT = 100.

setFixedAspectRatio() :- Thismethodisuse to fix aspect ratio.

setFixedAspectRatio() :- This method is use to get cropped shape.

Create MainActivity.

Here Get Image Bitmap From Crop Activity And Set Imageview.

pickImage() :- Pick image from gallery or capture from camera.

setImage() :- Set crop image in imageview.

calculateInSampleSize() :- Calculate the largest inSampleSize value that is a power of 2 and keeps both and height and width larger than the requested height and width.

Conclusion

After understanding the process of implementing a cropped image with source code in Android, you are completely ready to work on image cropping related projects. Now, develop and design the best images for your client's project. 

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Somish Kakadiya

CTO of Vasundhara Infotech, a leading Software development company in the USA. His technological interests has helped the company in making useful decisions.

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