XQRCode

allprojects {
     repositories {
        ...
        maven { url "https://jitpack.io" }
    }
}

dependencies {
  ...
  implementation 'com.github.xuexiangjys:XQRCode:1.0.5'
}

XQRCode.startScan(this, REQUEST_CODE);

<!-- 自定义默认二维码扫描界面的主题. -->
<style name="XQRCodeTheme.Custom">
    <item name="ViewfinderViewStyle">@style/ViewfinderView.Custom</item>
</style>

<style name="ViewfinderView.Custom">
    <item name="inner_corner_color">#123456</item>
    <item name="inner_corner_length">50dp</item>
    <item name="inner_corner_width">5dp</item>
    <item name="inner_scan_speed">20dp</item>
    <item name="inner_scan_isCircle">false</item>
</style>

/**
 * 开启二维码扫描
 */
@Permission(CAMERA)
private void startScan(ScanType scanType) {
    switch (scanType) {
        case DEFAULT:
            XQRCode.startScan(this, REQUEST_CODE);
            break;
        case DEFAULT_Custom:
            XQRCode.startScan(this, REQUEST_CODE, R.style.XQRCodeTheme_Custom);
            break;
        case REMOTE:
            Intent intent = new Intent(XQRCode.ACTION_DEFAULT_CAPTURE);
            startActivityForResult(intent, REQUEST_CODE);
            break;
        default:
            break;
    }
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    //处理二维码扫描结果
    if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
        //处理扫描结果（在界面上显示）
        handleScanResult(data);
    }

    //选择系统图片并解析
    else if (requestCode == REQUEST_IMAGE) {
        if (data != null) {
            Uri uri = data.getData();
            getAnalyzeQRCodeResult(uri);
        }
    }
}

/**
 * 处理二维码扫描结果
 * @param data
 */
private void handleScanResult(Intent data) {
    if (data != null) {
        Bundle bundle = data.getExtras();
        if (bundle != null) {
            if (bundle.getInt(XQRCode.RESULT_TYPE) == XQRCode.RESULT_SUCCESS) {
                String result = bundle.getString(XQRCode.RESULT_DATA);
                ToastUtils.toast("解析结果:" + result, Toast.LENGTH_LONG);
            } else if (bundle.getInt(XQRCode.RESULT_TYPE) == XQRCode.RESULT_FAILED) {
                ToastUtils.toast("解析二维码失败", Toast.LENGTH_LONG);
            }
        }
    }
}

/**
 * 进行二维码解析
 *
 * @param uri
 */
private void getAnalyzeQRCodeResult(Uri uri) {
    XQRCode.analyzeQRCode(PathUtils.getFilePathByUri(getContext(), uri), new QRCodeAnalyzeUtils.AnalyzeCallback() {
        @Override
        public void onAnalyzeSuccess(Bitmap mBitmap, String result) {
            ToastUtils.toast("解析结果:" + result, Toast.LENGTH_LONG);
        }

        @Override
        public void onAnalyzeFailed() {
            ToastUtils.toast("解析二维码失败", Toast.LENGTH_LONG);
        }
    });
}

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <SurfaceView
        android:id="@+id/preview_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <com.xuexiang.xqrcode.view.ViewfinderView
        android:id="@+id/viewfinder_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:inner_corner_color="@color/scan_corner_color"
        app:inner_corner_length="30dp"
        app:inner_corner_width="5dp"
        app:inner_marginTop="120dp"
        app:inner_scan_bitmap="@mipmap/ic_scan_image"
        app:inner_scan_isCircle="false"
        app:inner_scan_speed="10dp"
        app:inner_height="300dp"
        app:inner_width="300dp" />

</FrameLayout>

// 为二维码扫描界面设置定制化界面
CaptureFragment captureFragment = XQRCode.getCaptureFragment(R.layout.layout_custom_camera);
captureFragment.setAnalyzeCallback(analyzeCallback);
getChildFragmentManager().beginTransaction().replace(R.id.fl_my_container, captureFragment).commit();

//设置相机的自动聚焦间隔
XQRCode.setAutoFocusInterval(1500L);

-dontwarn com.google.zxing.**
-keep class com.google.zxing.**{*;}