mayuce / Androiddocumentscanner
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Android Document Scanner Library
image::https://img.shields.io/badge/version-1.5.3-green.svg[] image::https://img.shields.io/badge/minSDK-19-blue.svg[] image::https://img.shields.io/badge/license-MIT-yellowgreen.svg[]
This library helps you to scan any document like CamScanner.
image::documentscannerMockup.png[]
Requirements
You need to implement openCV to run this library via import module on Android Studio. Use OpenCV library on this repository. Follow the lines below:
- File -> New -> Import Module
- Select " openCVLibrary " you've downloaded from this repository.
- Click finish
- Sync gradle
- File -> Project Structure -> Select app under modules (this is your app module) -> Go to dependencies tab
- Click + button -> Module dependency -> Select openCVLibrary -> Click ok -> Click ok
- Sync gradle
Add line below to your top level build.gradle
[source,bourne]
https://jitpack.io" } } }
allprojects { repositories { /// .... maven { url "Add lines below to your app level build.gradle
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implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'
implementation 'com.github.mayuce:AndroidDocumentScanner:1.5.3'
And Sync the gradle
Usage
To start ImageCrop process
[source,java]
[email protected], ImageCropActivity::class.java),Constants.REQUEST_CROP)
ScannerConstants.selectedImageBitmap=btimap startActivityForResult(Intent(Catch the cropped image
[source,java]
[email protected],"Something wen't wrong.",Toast.LENGTH_LONG).show() }
if (requestCode==Constants.REQUEST_CROP && resultCode== Activity.RESULT_OK ) { if (ScannerConstants.selectedImageBitmap!=null) imgBitmap.setImageBitmap(ScannerConstants.selectedImageBitmap) else Toast.makeText(Additional Features
On above Android 9.0 there is magnifier to help user to see zoomed image to crop.
Customizing ImageCropActivity
You can customize something in layout via ScannerConstants.
[source,java]
// ScannerConstants.java
public static String cropText="CROP",
backText="CLOSE",
imageError="Can't picked image,
please try again.",
cropError="You have not selected a valid field. Please make corrections until the lines are blue.";
public static String cropColor="#6666ff",backColor="#ff0000",progressColor="#331199"; // Default Colors
public static boolean saveStorage=false; // Make it true if you need image in your storage.
(NEW) Version 1.5 Feature - Custom Scanner Activity!
With 1.5 version you have a feature to create your own Document Scanner Activity. You still can use old customization via ScannerConstants or you can create a new scanner activity for your layout.
HOW
- Place Scanner layout to your layout
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<FrameLayout
android:id="@+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="0dp" --- * Set HERE *
android:layout_weight="8" --- * Set HERE *
android:layout_gravity="center"
android:layout_margin="10dp">
<FrameLayout
android:id="@+id/holderImageCrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_margin="10dp">
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:adjustViewBounds="true"/>
</FrameLayout>
<com.labters.documentscanner.libraries.PolygonView
android:id="@+id/polygonView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:visibility="gone"/>
</FrameLayout>
- Extend your activity from DocumentScannerActivity
- Provide values
[source,java]
@Override
protected FrameLayout getHolderImageCrop() {
return holderImageCrop;
}
@Override
protected ImageView getImageView() {
return imageView;
}
@Override
protected PolygonView getPolygonView() {
return polygonView;
}
@Override
protected Bitmap getBitmapImage() {
return cropImage;
}
- Override methods
[source,java]
@Override
protected void showProgressBar() {
RelativeLayout rlContainer = findViewById(R.id.rlContainer);
setViewInteract(rlContainer, false);
progressBar.setVisibility(View.VISIBLE);
}
@Override
protected void hideProgressBar() {
RelativeLayout rlContainer = findViewById(R.id.rlContainer);
setViewInteract(rlContainer, true);
progressBar.setVisibility(View.GONE);
}
@Override
protected void showError(CropperErrorType errorType) {
switch (errorType) {
case CROP_ERROR:
Toast.makeText(this, ScannerConstants.cropError, Toast.LENGTH_LONG).show();
break;
}
}
And after setting your view call startCropping() method
If you have a trouble you can follow follow com.labters.documentscanner.ImageCropActivity for how to do that.
TO-DO
- Remove RxJava dependency.
Thanks
- Thanks RX library to improve this project.
- Thanks OpenCV for this awesome library. - https://opencv.org/ and
- Inspiration from aashari . Thanks him for his source codes. - https://github.com/aashari/android-opencv-camera-scanner
[source,bourne]
MIT License
Copyright (c) 2020 Muhammet Ali YUCE
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.