Unity Android交互自動安裝應用

本文轉載自查看原文 2021-10-31 02:18 107 Unity

🤔開始做一個安卓小游戲，沒有想到要去熱更新它，結果做完才想到，有bug怎么辦.....

於是就有了下面的踩坑之旅。

版本環境

Unity 2020.3.20f1c1
Android Studio 4.1.3

踩坑之旅

Unity調用Android的方法

新建一個Empty Activity項目

點擊完成后，刪除紅框內容無用內容

變更后的AndroidManifest.xml文件

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

    <application >
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
            </intent-filter>
        </activity>
    </application>
</manifest>

添加一個測試的靜態方法
修改繼承自Activity
修改構建文件
構建arr包
新建一個Unity工程
Build Settings... Ctrl+Shift+B

切換至Android平台
將生成好的arr包放入Plugins\Android目錄下

新建腳本調用它

新建Test腳本文件

using UnityEngine;
using UnityEngine.UI;

public class Test : MonoBehaviour
{
    public Text showResult;

    private void Start()
    {
        var jo = new AndroidJavaObject("cn.linyisonger.android.MainActivity");
        int sum = jo.CallStatic<int>("add", 1, 3);
        showResult.text = sum.ToString();
    }
}

新建一個Text隨便改改樣式、將腳本掛在Canvas上(😎當然掛在那里都是可以的，我就隨便掛一下)、將Text組件拖至腳本的showResult字段上。

打包測試

添加場景、選擇運行設備、構建並運行
效果

Unity自動更新並調用安裝

示意圖 😂有點糙

將classes.jar包引入項目中來D:\Unity\2020.3.20f1c1\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\mono\Release\Classes

右鍵添加類庫

將classes.jar設置為僅編譯時構建，打包時不包含此文件（Unity打包會帶上）

implementation files('libs\\classes.jar') // 當前
compileOnly fileTree(dir: "libs",includes: ["*.jar"]) // 修改

添加安裝方法

MainActivity.java

package cn.linyisonger.callme;
 
import androidx.core.content.FileProvider;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;

import com.unity3d.player.UnityPlayer;

import java.io.File;

public class MainActivity extends Activity {

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

    public static int add(int a, int b) {
        return a + b;
    }

    public static void install(String apkFullPath){
        Intent intent = new Intent(Intent.ACTION_VIEW);
        File file = new File(apkFullPath);
        if (Build.VERSION.SDK_INT >= 24) {
            Uri apkUri = FileProvider.getUriForFile(UnityPlayer.currentActivity.getApplicationContext(), UnityPlayer.currentActivity.getPackageName() +".fileprovider", file);
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
        } else {
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            Uri uri = Uri.fromFile(file);
            intent.setDataAndType(uri, "application/vnd.android.package-archive");
        }
        UnityPlayer.currentActivity.startActivity(intent);
    }

}

構建arr包放置在Unity工程中
設置包名

添加filepaths.xml文件，放在Android/res/xml下

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="download" path="Android/data/cn.LinYisonger.CallAndroid/files/"/>
</paths>

添加AndroidManifest.xml文件，放在Android下

<?xml version="1.0" encoding="utf-8"?>
<!-- GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.unity3d.player"
    xmlns:tools="http://schemas.android.com/tools">
    
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.CALL_PHONE"/>
    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>



    <application>
        <provider android:name="androidx.core.content.FileProvider" android:authorities="cn.LinYisonger.CallAndroid.fileprovider" android:grantUriPermissions="true" android:exported="false" android:usesCleartextTraffic="true">
            <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/filepaths" />
        </provider>
        <activity android:name="com.unity3d.player.UnityPlayerActivity" android:theme="@style/UnityThemeSelector">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
        </activity>
    </application>
</manifest>

添加更新腳本

using System;
using System.Collections;
using System.IO;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.UI;

public class Test1 : MonoBehaviour
{

    /// <summary>
    /// 版本模型
    /// </summary> 
    public class VersionModel
    {
        /// <summary>
        /// Id
        /// </summary>
        public long id;
        /// <summary>
        /// 程序Key值
        /// </summary>
        public string key;
        /// <summary>
        /// 編號
        /// </summary>
        public string no;
        /// <summary>
        /// 描述
        /// </summary>
        public string desc;
        /// <summary>
        ///  安卓包路徑
        /// </summary>
        public string apkUrl;
    }
    public delegate void LoadingAction(float progress);
    public delegate void VersionAction(VersionModel version);
    private VersionModel CurrentVersion;

    private string path => Application.persistentDataPath + "/update.apk";

    public Text UpdateText;


    private void Start()
    {
        StartCoroutine(GetCurrentVersion((v) =>
        {
            if (v.no != Application.version)
            {
                StartCoroutine(Download((p) =>
                {
                    // 下載進度
                    UpdateText.text = (p * 100).ToString("0.00");
                },
                () =>
                {
                    // 下載完成
                    UpdateText.text = "下載完成";
                    // 安裝
                    Install();
                }));
            }
        }));



    }

    public IEnumerator GetCurrentVersion(VersionAction action)
    {
        UnityWebRequest webRequest = UnityWebRequest.Get("http://y.linyisonger.cn/api/version/GetTheLatestVersion?key=cn.LinYisonger.CallAndroid");
        yield return webRequest.SendWebRequest();
        CurrentVersion = JsonUtility.FromJson<VersionModel>(webRequest.downloadHandler.text);
        action.Invoke(CurrentVersion);
    }
    public IEnumerator Download(LoadingAction loading, Action done)
    {
        UnityWebRequest webRequest = UnityWebRequest.Get(CurrentVersion.apkUrl);
        webRequest.SendWebRequest();
        while (!webRequest.isDone)
        {
            loading(webRequest.downloadProgress);
            yield return 0;
        }
        File.WriteAllBytes(path, webRequest.downloadHandler.data);
        done();
        yield return null;
    }
    public void Install()
    {
        var jo = new AndroidJavaObject("cn.linyisonger.callme.MainActivity");
        jo.CallStatic("install", path);
    }
}

構建調試然后就會報錯🤨

WARNING: The option setting 'android.enableR8=false' is deprecated.
It will be removed in version 5.0 of the Android Gradle plugin.
You will no longer be able to disable R8

將構建的版本調整為3.4.0

構建調試打開應用閃退啦! 😲

找了很久原來是少引用了依賴庫
```
# 添加依賴支持
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
```
構建調試

參考文章

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