Unity Android 之重启应用（应用自身重启自身）的方法实现

￡神魔★判官ぃ 2023-03-06 05:13 11阅读 0赞

![20200805141430786.png][]

# Unity Android 之 重启应用（应用自身重启自身）的方法实现 #

**目录**

Unity Android 之 重启应用（应用自身重启自身）的方法实现

一、简单介绍

二、实现原理

三、注意实现

四、效果预览

五、实现步骤

Android Studio 端

Unity 端

六、关键脚本

--------------------

## 一、简单介绍 ##

UGUI，是Unity自带的 GUI 系统，震撼力一些常规的操作，便于后期类似操作的参考。

本节介绍，在 Unity Android 中，应用自身重启自身的方法。

## 二、实现原理 ##

1、getActivity().getPackageManager() .getLaunchIntentForPackage(getActivity().getPackageName() )

2、PendingIntent.getActivity(getActivity(), 0,restartIntent,0)

3、(AlarmManager) getActivity().getSystemService(Context.ALARM\_SERVICE)

4、manager.set(AlarmManager.RTC, System.currentTimeMillis()+delay, intent)

5、在 Unity 调用 Android aar 包中定义的应用重启方法

## 三、注意实现 ##

1、public void restartApplication(int delay) 中的 delay 不能设置太大，太大可能不能重启，建在10 以内就好（有好的建议欢迎留言）

2、直接 startActivity(intent) 的方法，好似在 Unit一种不起作用（有好的建议欢迎留言）

## 四、效果预览 ##

![20200805145000744.gif][]

## 五、实现步骤 ##

### Android Studio 端 ###

1、新建一个 Android Library

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70][]

2、取一个名称

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 1][]

3、在模块中创建一个脚本，编写重启应用的代码逻辑

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 2][]

4、Build - Make Module “xxxxx” 打包 aar

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 3][]

### Unity 端 ###

1、打开Unity ，新建空工程

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 4][]

2、在场景中添加一个按钮来测试重启应用

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 5][]

3、在工程中编写代码，AppRestartTool 与Android 重启应用接口交互，Singleton 单例接口，TestAppRestartTool 测试脚本

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 6][]

4、把 TestAppRestartTool 挂载到场景中，按钮赋值

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQzNjEyODA_size_16_color_FFFFFF_t_70 7][]

5、运行场景，打包到设备上测试，效果如上

## 六、关键脚本 ##

1、TestAppRestartTool

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using UnityEngine.UI;
    
    public class TestAppRestartTool : MonoBehaviour
    {
        public Button Restart_Button;
    
        // Start is called before the first frame update
        void Start()
        {
            Restart_Button.onClick.AddListener(AppRestartTool.Instance.ResartApp);
        }
    
        // Update is called once per frame
        void Update()
        {
            
        }
    }

2、AppRestartTool

using System.Collections;
    using System.Collections.Generic;
    using System.Threading;
    using UnityEditor;
    using UnityEngine;
    
    public class AppRestartTool : Singleton<AppRestartTool>
    {
        #region 对外公开使用的接口
        /// <summary>
        /// 构造函数，并做一些初始化
        /// </summary>
        public AppRestartTool()
        {
            
    
        }
    
        /// <summary>
        /// 重启应用
        /// </summary>
        public void ResartApp() {
    
            Debug.Log(" ResartApp");
    #if UNITY_EDITOR
            EditorApplication.isPlaying = false;
    
    
    #else
            Debug.Log(" ResartApp   MJavaObject.Call(restartApplication, 10) ");
            MJavaObject.Call("restartApplication",10);
            MJavaObject.Dispose();
    #endif
    
        }
    
    
        #endregion 对外公开使用的接口
    
        #region 帮助方法
    
    
    
        #endregion
    
        #region 私有变量
        AndroidJavaObject javaObject;
    
        public AndroidJavaObject MJavaObject { get {
    
                if (javaObject == null)
                {
                    javaObject = new AndroidJavaObject("com.example.restartapptool.AppRestart");
                }
    
                return javaObject;
            }
        }
        #endregion
    }

3、AppRestart

package com.example.restartapptool;
    
    import android.app.Activity;
    import android.app.AlarmManager;
    import android.app.PendingIntent;
    import android.content.Context;
    import android.content.Intent;
    import android.util.Log;
    
    
    
    public class AppRestart {
    
        public void restartApplication(int delay) {
            //android 重启
    //        final Intent intent = getActivity().getPackageManager().getLaunchIntentForPackage(getActivity().getPackageName());
    //        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    //        getActivity().startActivity(intent);
    
            // unity 重启
            Log.d("Unity", "========restart "+delay);
    
            Intent restartIntent = getActivity().getPackageManager()
                    .getLaunchIntentForPackage(getActivity().getPackageName() );
            PendingIntent intent = PendingIntent.getActivity(getActivity(), 0,restartIntent,0);
            AlarmManager manager = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE);
            manager.set(AlarmManager.RTC, System.currentTimeMillis()+delay, intent);
            getActivity().finish();
            android.os.Process.killProcess(android.os.Process.myPid());
        }
    
        // 设置一个 Activity 参数
    
        private Activity _unityActivity;
    
        // 通过反射获取 Unity 的 Activity 的上下文
    
        Activity getActivity(){
    
            if(null == _unityActivity){
    
                try{
    
                    Class<?> classtype = Class.forName("com.unity3d.player.UnityPlayer");
    
                    Activity activity = (Activity) classtype.getDeclaredField("currentActivity").get(classtype);
    
                    _unityActivity = activity;
    
                }catch (ClassNotFoundException e){
    
                    e.printStackTrace();
    
                }catch (IllegalAccessException e){
    
                    e.printStackTrace();
    
                }catch (NoSuchFieldException e){
    
                    e.printStackTrace();
    
                }
    
            }
    
            return _unityActivity;
    
        }
    }

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[20200805145000744.gif]: /images/20230208/c75a13887e204060b942b1da3d8b8fbf.png
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