Unity内部更新安装安卓App
1、下载apk
将工程中StreamingAssets这个目录下的文件全部清空,然后再用Unity打包一个APK。把APK文件上传至服务器,用UnityWebRequest下载到指定路径即可,至于为啥要清空StreamingAssets,是因为我的项目资源是用ab包加载的,在第一次安装的时候都已经释放的本地了,如果更新版本没有资源更新就清空即可,如果有资源更新就不能清空。
//apk资源路径
string apkpath= Application.persistentDataPath + "/a.apk";
//将apk写入沙盒目录
string Installpath = Application.persistentDataPath + "/a.apk";
IEnumerator DownLoadApk()
{
UnityWebRequest request = UnityWebRequest.Get(path);
if (request.isHttpError || request.isNetworkError)
{
Debug.Log(request.error.ToString());
}
else
{
while (!request.isDone)
{
//request.downloadProgress 下载进度
yield return 0;
}
if (request.isDone)//下载完成
{
Debug.Log("下载完成");
}
//写入Application.persistentDataPath指定路径
byte[] data = request.downloadHandler.data;
//将apk 写入沙盒目录
using (FileStream fs = new FileStream(Installpath , FileMode.Create))
{
fs.Write(data, 0, data.Length);
}
//写入完成 开始安装
//下载到指定路径后就需要在程序内部调用安装。需要跟android交互调用原生方法。
InstallApks();
}
}
2、安装apk
Jave方法
package example.administrator.myapplication;
import android.content.*;
import android.net.Uri;
import android.os.*;
import android.support.v4.content.*;
import com.unity3d.player.*;
import java.io.*;
public class MainActivity {
public static boolean installAPK(String apkPath) {
File apkFile = new File(apkPath);
if (apkFile.exists()) {
Intent intent = new Intent(Intent.ACTION_VIEW);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
Uri contentUri = FileProvider.getUriForFile(UnityPlayer.currentActivity, UnityPlayer.currentActivity.getPackageName()+".fileprovider", apkFile);
intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
} else {
intent.setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
// if (UnityPlayer.currentActivity.getPackageManager().queryIntentActivities(intent, 0).size() > 0) {
UnityPlayer.currentActivity.startActivity(intent);
// }
return true;
} else {
return false;
}
}
}
Unity 调用安卓方法
public void InstallApks()
{
#if UNITY_ANDROID
//初始化 获得项目对应的MainActivity
AndroidJavaClass javaClass = new AndroidJavaClass("example.administrator.myapplication.MainActivity");
bool b = javaClass.CallStatic<bool>("installAPK", Installpath );
#endif
}