androidstudio基于华为hms scankit实现二维码扫码功能

一、配置

1，在根目录build.gradle添加：
buildscript {
repositories {
google()
jcenter()
maven {url ‘https://developer.huawei.com/repo/’}
}
dependencies {
classpath “com.android.tools.build:gradle:4.1.1”
classpath ‘com.huawei.agconnect:agcp:1.2.1.301’
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
maven {url ‘https://developer.huawei.com/repo/’}
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

2，在当前工程build.gradle添加：
applyplugin:‘com.huawei.agconnect’
dependencies{
implementation’com.huawei.hms:scan:1.2.5.300’
}

3，在manifest文件添加：

<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission><!--改变无线网状态-->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission><!--访问无线网状态-->
<uses-permission android:name="android.permission.CAMERA" /><!--相机权限-->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <!--从图库获取照片或保存-->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.VIBRATE" /><!-- 震动-->

并在application里面添加：

<activity android:name="com.huawei.hms.hmsscankit.ScanKitActivity" />

二、文件

1.xml文件

<Button
    android:text="二维码"
    android:layout_width="279dp"
    android:layout_height="87dp"
    tools:layout_editor_absoluteX="53dp"
    tools:layout_editor_absoluteY="225dp"
    android:onClick="loadScanKitBtnClick"
    tools:ignore="MissingConstraints,OnClick"
    android:id="@+id/saoma_button"/>

2.java文件

package com.example.smartcommunityv2;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
import com.huawei.hms.hmsscankit.ScanUtil;
import com.huawei.hms.ml.scan.HmsScan;
import com.huawei.hms.ml.scan.HmsScanAnalyzerOptions;
public class scan extends AppCompatActivity {
    public static final int CAMERA_REQ_CODE = 111;
    public static final int DECODE = 1;
    public static final int GENERATE = 2;
    private static final int REQUEST_CODE_SCAN_ONE = 0X01;
    public static final String RESULT = "SCAN_RESULT";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_scan);
    }
    public void loadScanKitBtnClick(View view) {
        requestPermission(CAMERA_REQ_CODE, DECODE);
    }
    /**
     * 申请权限
     */
    private void requestPermission(int requestCode, int mode) {
        if (mode == DECODE) {
            decodePermission(requestCode);
        }
        else if (mode == GENERATE) {
            generatePermission(requestCode);
        }
    }
    /**
     * 申请权限
     */
    private void decodePermission(int requestCode) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA,
                Manifest.permission.READ_EXTERNAL_STORAGE},requestCode);
    }
    private void generatePermission(int requestCode) {
        System.out.println("3");
        ActivityCompat.requestPermissions(
                this,
                new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
                requestCode);
    }
    /**
     * Call back the permission application result. If the permission application is successful, the barcode scanning view will be displayed.
     回调权限应用程序结果。如果权限申请成功，将显示条形码扫描视图。
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        //默认扫码格式
//        if (requestCode == CAMERA_REQ_CODE) {
//            ScanUtil.startScan(this, REQUEST_CODE_SCAN_ONE, new HmsScanAnalyzerOptions.Creator().create());
//        }
        if (permissions == null || grantResults == null) {
            return;
        }
        if (grantResults.length < 2 || grantResults[0] != PackageManager.PERMISSION_GRANTED || grantResults[1] != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        if (requestCode == CAMERA_REQ_CODE) {
            ScanUtil.startScan(this, REQUEST_CODE_SCAN_ONE, new HmsScanAnalyzerOptions.Creator().setHmsScanTypes(HmsScan.QRCODE_SCAN_TYPE).create());
        }
    }
    /**
     *扫码结果的回调
     */
    @RequiresApi(api = Build.VERSION_CODES.N)
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_CODE_SCAN_ONE) {
            HmsScan obj = data.getParcelableExtra(ScanUtil.RESULT);
            Uri uri = Uri.parse(obj.showResult);
            Intent intent = new Intent(Intent.ACTION_VIEW, uri);
            startActivity(intent);
            Toast.makeText(this,"小天才成功了",Toast.LENGTH_SHORT).show();
        }
    }

}

总结

HAKUNAMATATA