ydcool/QrModule

Android QR Module

Thanks to Ryan_Tang.本项目基于他blog上的项目优化改进。

Feel free to fork and pr.

Features

Qr Scan
Qr Generate

QR Scan

Demo APK download or scan

Usage

1 Add gradle dependence:

    compile 'me.ydcool.lib:qrmodule:latest.integration'

2 Add QrScannerActivity to your AndroidManifest.xml

    <activity android:name="me.ydcool.lib.qrmodule.activity.QrScannerActivity"/>

3 Add permissions

    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.FLASHLIGHT"/>
    <uses-permission android:name="android.permission.VIBRATE"/>

4 Start QrScannerActivity in your activity.

    Intent intent = new Intent(MainActivity.this, QrScannerActivity.class);
    startActivityForResult(intent, QrScannerActivity.QR_REQUEST_CODE);

5 And receive scanner activity result in your activity.

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == QrScannerActivity.QR_REQUEST_CODE) {
            Log.d(TAG, resultCode == RESULT_OK
                            ? data.getExtras().getString(QrScannerActivity.QR_RESULT_STR)
                            : "Scanned Nothing!");
        }
    }

See more details in Demo MainActivity.

QR Generate

Usage

Generate qr code with QrGenerator.

   Bitmap qrCode = new QrGenerator.Builder()
       .content("https://github.com/Ydcool/QrModule")
       .qrSize(300)
       .margin(2)
       .color(Color.BLACK)
       .bgColor(Color.WHITE)
       .ecc(ErrorCorrectionLevel.H)
       .overlay(getContext(),R.mipmap.ic_launcher)
       .overlaySize(100)
       .overlayAlpha(255)
       .overlayXfermode(PortBuff.Mode.SRC_ATOP)
       .encode();

    mImageView.setImageBitmap(qrCode);

Method	Description
`content(String content)`	content of qr code.
`qrSize(int size)`	qr code image size.
`margin(int margin)`	default is 2.See more about EncodeHintType.MARGIN
`color(int color)`	qr code foreground color.
`color(Context c, @ColorRes int color)`	set foreground color with color resource.
`bgColor(int color)`	set the background color.
`bgColor(Context c,@ColorRes int color)`	set the background color with color resource.
`ecc(ErrorCorrectionLevel e)`	error correction level , default is `L` (~7%).See more about ErrorCorrectionLevel.
`overlay(Bitmap overlay)`	overlay image on qr code, usually set with logo. NOTICE: once you set overlay image,you'd better set `ecc` to `H`.
`overlay(Context c,@DrawableRes int overlay)`	set overlay with drawable resource.
`overlaySize(int size)`	overlay image size in qr code.
`overlayAlpha(int alpha)`	set overlay image alpha, range [0,255], default is 255(opaque).
`overlayXfermode(PorterDuff.Mode m)`	set xfermode for overlay bitmap,default is `SRC`,see more about PorterDuff.Mode.
`footNote(String s)`	This feature is under develop .
`encode()`	return a encoded qrCode bitmap.

TODO

Custom pattern support.

License

Apache License. See the LICENSE for more info.