google obb（三）從自己cdn上下載(支持斷點續傳)

支持斷點續傳

參考網址

https://www.twblogs.net/a/5b8b35ad2b717718832e0bb6/zh-cn

https://blog.csdn.net/AnYuanLzh/article/details/70848442

 

當然還需要判斷

網絡是否連接、當前非wifi提示是否手機下載、obb下載完畢校驗obb是否正確

你可能還需要了解：

1、修改Unity導出Android工程啟動時黑屏，啟動時間過長

2、obb下載完畢重啟Activity讀取obb數據文件

    /**
     * 重啟Activity
     * @param context
     */
    public static void restartApplication(Activity context) {
        PackageManager packageManager = context.getPackageManager();
        Intent intent = packageManager.getLaunchIntentForPackage(context.getPackageName());
        ComponentName componentName = intent.getComponent();
        Intent mainIntent = IntentCompat.makeRestartActivityTask(componentName);
        mainIntent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
        context.startActivity(mainIntent);
        System.exit(0);
    }

 

可能報錯： 

System.Net.WebException: Error getting response stream (Write: The authentication or decryption has failed.): SendFailure ---> 
System.IO.IOException: The authentication or decryption has failed. ---> 
Mono.Security.Protocol.Tls.TlsException: Invalid certificate received from server. Error code: 0xffffffff800b010ay

報錯原因：

1、下載地址https，證書失效導致報錯(我這邊出現的問題，http沒問題)

解決方式：

參考地址：https://linxinfa.blog.csdn.net/article/details/93190303 (簡單測試可行)

參考文檔：https://github.com/swagger-api/swagger-codegen/issues/3505