androidstudio基于華為hms scankit實現二維碼掃碼功能
首先在根目錄bulid.gradle添加：
// Top-level build file where you can add configuration options common to all sub-projects/modules.
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){
? ? deleterootProject.buildDir
}
在當前工程的bulid.gradle添加：
applyplugin:'com.huawei.agconnect'
dependencies{
? ? implementation'com.huawei.hms:scan:1.2.5.300'
}
在manifest文件添加：
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission><!--改變無線網狀態-->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission><!--訪問無線網狀態-->
<uses-permission android:name="android.permission.CAMERA" /><!--相機權限-->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <!--從圖庫獲取照片或保存-->
<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" /><!-- 震動-->
再在application里面添加：
<activity android:name="com.huawei.hms.hmsscankit.ScanKitActivity" />
xml文件：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
? ? xmlns:app="http://schemas.android.com/apk/res-auto"
? ? xmlns:tools="http://schemas.android.com/tools"
? ? android:layout_width="match_parent"
? ? android:layout_height="match_parent"
? ? android:gravity="center"
? ? tools:context=".scan">
? ? ? ? android:text="二維碼"
? ? ? ? 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"/>
</RelativeLayout>
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 scanextends 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 StringRESULT ="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);
? ? }
/**
? ? * 申請權限
? ? */
? ? private void requestPermission(int requestCode, int mode) {
if (mode ==DECODE) {
decodePermission(requestCode);
? ? ? ? }
else if (mode ==GENERATE) {
generatePermission(requestCode);
? ? ? ? }
}
/**
? ? * 申請權限
? ? */
? ? 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.
? ? 回調權限應用程序結果。如果權限申請成功，將顯示條形碼掃描視圖。
? ? */
? ? @Override
? ? public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
//默認掃碼格式
//? ? ? ? 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());
? ? ? ? }
}
/**
? ? *掃碼結果的回調
? ? */
? ? @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();
? ? ? ? }
}
}
