MainActivity

package com.qrcode.qr;

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;

import com.qrcode.qr.R;
import com.uuzuche.lib_zxing.activity.CaptureActivity;
import com.uuzuche.lib_zxing.activity.CodeUtils;

/**
 * --------------- 二維碼掃描 --------------------
 * 實現步驟
 *   1. 在module中新增依賴
 *    2.在application中進行初始化(清單檔案要註冊)
 *    3.在清單檔案中新增依賴
 *    4.根據點選事件呼叫掃描二維碼的介面操作
 *    5.在動態接收跳轉頁面傳過來的結果,進行吐司
 */


public class MainActivity extends AppCompatActivity {

    private EditText editText;
    private ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

    public void ZXing(View view) {
        Intent intent = new Intent(MainActivity.this, CaptureActivity.class);
        startActivityForResult(intent, 0);
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0) {
            //處理掃描結果（在介面上顯示）
            if (null != data) {
                Bundle bundle = data.getExtras();
                if (bundle == null) {
                    return;
                }
                if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_SUCCESS) {
                    String result = bundle.getString(CodeUtils.RESULT_STRING);
                    Toast.makeText(this, "解析結果:" + result, Toast.LENGTH_LONG).show();
                } else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED) {
                    Toast.makeText(MainActivity.this, "解析二維碼失敗", Toast.LENGTH_LONG).show();
                }
            }
        }

    }
}

 

自定義類MyApplication 繼承 Application

package com.qrcode.qr;

import android.app.Application;

import com.tencent.bugly.crashreport.CrashReport;
import com.uuzuche.lib_zxing.activity.ZXingLibrary;

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();

        //Zxing
        ZXingLibrary.initDisplayOpinion(this);

        //Bugly
        CrashReport.initCrashReport(getApplicationContext(), "5e578b64f0", true);

    }
}

 

清單檔案要註冊 MyApplication 在清單檔案中新增許可權

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.qrcode.qr">

    <!-- 二維碼掃描所需要的許可權-->
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.FLASHLIGHT" />
    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.camera.autofocus" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="anBdroid.permission.INTERNET" />

    <!-- 騰訊ugly 所需許可權-->

    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.READ_LOGS"
        tools:ignore="ProtectedPermissions" />


    <application
        android:name=".MyApplication"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>
 

在Gradle新增依賴

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.qrcode.qr"
        minSdkVersion 15
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    configurations.all {
        resolutionStrategy.eachDependency { DependencyResolveDetails details ->
            def requested = details.requested
            if (requested.group == 'com.android.support') {
                if (!requested.name.startsWith("multidex")) {
                    details.useVersion '28.0.0'
                }
            }
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    //二維碼 ZXing
    implementation 'cn.yipianfengye.android:zxing-library:2.2'

    //bugly依賴
    implementation 'com.tencent.bugly:crashreport:latest.release'

}