集成华为HMS Scankit 扫码SDK实现自定义扫码页面，扫一扫二维码

1：应用场景:

        Android开发实现扫一扫功能，比ZXing效果好，集成简单。

2：官方Demo：

       官网Demo体验地址：华为Demo，示例代码下来就可以运行。

3：开发：

    1：在项目级gradle里添加华为maven仓

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    
    repositories {
        google()
        jcenter()
        maven {url 'http://developer.huawei.com/repo/'}
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.3'
        

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url 'http://developer.huawei.com/repo/'}
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

2：在应用级的build.gradle里面加上SDK依赖

// 华为二维码扫描
implementation 'com.huawei.hms:scan:1.1.3.301'

3：Manifest申请静态权限和扫码页面：

<!--相机权限-->
<uses-permission android:name="android.permission.CAMERA" />
<!--读文件权限-->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<!--使用特性-->
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<!--震动权限-->
<uses-permission android:name="android.permission.VIBRATE" />

<!--        自定义扫码界面-->
        <activity
            android:screenOrientation="portrait"
            android:theme="@style/Theme.AppCompat.Light.NoActionBar"
            android:windowSoftInputMode="adjustPan|stateHidden"
            android:name=".ScanQrActivity"/>

4：在启动扫码Activity的地方添加动态权限申请：

public class MainActivity extends AppCompatActivity {
    TextView textView;
    public static int REQUEST_CODE = 0x11;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView = findViewById(R.id.bt);
        textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //申请权限
                ActivityCompat.requestPermissions(
                        MainActivity.this,
                        new String[]{Manifest.permission.CAMERA, Manifest.permission.READ_EXTERNAL_STORAGE},
                        REQUEST_CODE);
            }
        });
    }
    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        if (permissions == null || grantResults == null) {
            return;
        }
        if (grantResults.length < 2 || grantResults[0] != PackageManager.PERMISSION_GRANTED || grantResults[1] != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        if (requestCode == REQUEST_CODE) {
            //权限申请成功，跳转到自定义扫码页面
            Intent intent = new Intent(MainActivity.this, ScanQrActivity.class);

            startActivityForResult(intent, REQUEST_CODE);
        }
    }

//     处理扫码结果
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_CODE) {
            //处理扫描结果 
            if (null != data) {
                Bundle bundle = data.getExtras();
                if (bundle == null) {
                    return;
                }
                if (bundle.getInt("result_type") == 1) {
                    String result = bundle.getString("result_string");
                    Log.e("扫描结果" , "result:"+result);

                } else if (bundle.getInt("result_type") == 2) {
                    Log.e("扫描结果" , "扫描失败:");
                }
            }
        }
    }
}

5：自定义扫码页面

/**
 *   二维码扫描
 */
public class ScanQrActivity extends AppCompatActivity {


    private RemoteView remoteView;
    int mSceenWidth;
    int mSceenHeight;
    View line;

    FrameLayout frameLayout;

    ImageView flushBtn;
    /**
     *   手电筒图片
     */
    private int[] img = {R.mipmap.flashlight_on, R.mipmap.flashlight_off};
    final int SCAN_FRAME_SIZE = 340;
    private TranslateAnimation animation;


    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_scanqr);
        line = findViewById(R.id.scan_qr_line);
        frameLayout = findViewById(R.id.scan_qr_rim);
        flushBtn = findViewById(R.id.flush_btn);


        //1.设置扫码识别区域，您可以按照需求调整参数
        DisplayMetrics dm = getResources().getDisplayMetrics();
        float density = dm.density;
        //2.获取屏幕尺寸
        mSceenWidth = getResources().getDisplayMetrics().widthPixels;
        mSceenHeight = getResources().getDisplayMetrics().heightPixels;

        int scanFrameSize = (int) (SCAN_FRAME_SIZE * density);

        //3.声明 viewfinder'的 矩形,在布局中间
        //设置扫描区域(可选,矩形可以为空,如果不配置,默认是中心的布局)
        Rect rect = new Rect();
        rect.left = mSceenWidth / 2 - scanFrameSize / 2;
        rect.right = mSceenWidth / 2 + scanFrameSize / 2;
        rect.top = mSceenHeight / 2 - scanFrameSize / 2;
        rect.bottom = mSceenHeight / 2 + scanFrameSize / 2;


        //初始化RemoteView，并通过如下方法设置参数:
        // setContext()（必选）传入context、setBoundingBox()设置扫描区域、
        // setFormat()设置识别码制式，设置完毕调用build()方法完成创建
        remoteView = new RemoteView.Builder().setContext(this).setBoundingBox(rect).setFormat(HmsScan.ALL_SCAN_TYPE).build();
        //将自定义view加载到activity
        remoteView.onCreate(savedInstanceState);

        remoteView.setOnLightVisibleCallback(new OnLightVisibleCallBack() {
            @Override
            public void onVisibleChanged(boolean visible) {
                if(visible){
                    flushBtn.setVisibility(View.VISIBLE);
                }
            }
        });

        remoteView.setOnResultCallback(new OnResultCallback() {
            @Override
            public void onResult(HmsScan[] result) {
                //获取到扫码结果HmsScan，判断结果是否有效
                if (result != null && result.length > 0 && result[0] != null && !TextUtils.isEmpty(result[0].getOriginalValue())) {
                    //成功
                    setVibrator();
                    Intent resultIntent = new Intent();
                    Bundle bundle = new Bundle();
                    bundle.putInt("result_type",1);
                    bundle.putString("result_string", result[0].originalValue);
                    resultIntent.putExtras(bundle);
                    ScanQrActivity.this.setResult(RESULT_OK, resultIntent);
                    ScanQrActivity.this.finish();

                } else {
                    //失败
                    setVibrator();
                    Intent resultIntent = new Intent();
                    Bundle bundle = new Bundle();
                    bundle.putInt("result_type", 2);
                    bundle.putString("result_string", "");
                    resultIntent.putExtras(bundle);
                    ScanQrActivity.this.setResult(RESULT_OK, resultIntent);
                    ScanQrActivity.this.finish();


                }
            }
        });
        remoteView.onCreate(savedInstanceState);
        //添加 remoteView 到Framelayout布局中
        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
        //绑定相机预览布局

        frameLayout.addView(remoteView, params);

        setFlashOperation();
    }
    /**
     *  震动
     */
    private void setVibrator() {

        Vibrator vibrator = (Vibrator)this.getSystemService(this.VIBRATOR_SERVICE);
        vibrator.vibrate(300);
    }

    /**
     *  开启闪光灯
     */
    private void setFlashOperation() {
        flushBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (remoteView.getLightStatus()) {
                    remoteView.switchLight();
                    flushBtn.setImageResource(img[1]);
                } else {
                    remoteView.switchLight();
                    flushBtn.setImageResource(img[0]);
                }
            }
        });
    }
    @Override
    protected void onResume() {

        super.onResume();

        if (remoteView!= null){

            remoteView.onResume();
        }

        if (animation == null){
            animation = new TranslateAnimation(0, 0, 0, 720);
        }

        line.setVisibility(View.VISIBLE);

        animation.setDuration(2000);

        animation.setRepeatCount(-1);

        line.startAnimation(animation);

        animation.start();
 
    }
    //管理 remoteView 生命周期
    @Override
    protected void onStart() {
        super.onStart();
        if (remoteView!= null){
            remoteView.onStart();
        }

    }

    @Override
    protected void onPause() {

        super.onPause();

        animation.cancel();
        if (remoteView!= null){

            remoteView.onPause();
        }

    }

    @Override
    protected void onDestroy() {

        super.onDestroy();
        if (remoteView!= null){

            remoteView.onDestroy();
        }
    }

    @Override
    protected void onStop() {
        super.onStop();
        if (remoteView!= null){

            remoteView.onStop();
        }
    }


}

6：页面xml布局

activity_scanqr.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:orientation="vertical"
    android:background="#32CF9C"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <FrameLayout
            android:id="@+id/scan_qr_rim"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#C0C0C0" />

        <ImageView
            android:layout_marginBottom="100dp"
            android:layout_alignParentBottom="true"
            android:layout_width="45dp"
            android:layout_height="45dp"
            android:id="@+id/flush_btn"
            android:layout_centerHorizontal="true"
            android:gravity="center"
            android:src="@mipmap/flashlight_off" />

        <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <RelativeLayout
                android:layout_marginBottom="9dp"
                android:layout_marginTop="275dp"
                android:layout_gravity="center_horizontal"
                android:layout_width="300dp"
                android:layout_height="300dp">
                <View
                    android:id="@+id/scan_qr_line"
                    android:layout_width="2500dp"
                    android:layout_height="16dp"
                    android:background="@mipmap/scan_image"
                    android:visibility="invisible" />

                <ImageView
                    android:layout_width="300dp"
                    android:layout_height="300dp"
                    android:layout_centerHorizontal="true"
                    android:scaleType="fitXY"
                    android:src="@mipmap/pic_scaning"
                     />
                <!--                               -->

            </RelativeLayout>



        </LinearLayout>



    </RelativeLayout>
</LinearLayout>

备注:资源下载地址，码云项目地址。

本文地址：https://blog.csdn.net/weixin_35861115/article/details/108974830