如何在应用程序首次启动时运行特定代码？

发布于 2024-11-27 06:59:46 字数 416 浏览 2 评论 0原文

我想在我的应用程序第一次启动时运行一些代码，它将过去一周的短信同步到我的网络应用程序。我不确定如何过滤掉一周内的任何内容，但这是我获取所有短信的代码：

Uri allMessage = Uri.parse("content://sms/");
ContentResolver cr = getContentResolver();
Cursor c = cr.query(allMessage, null, null, null, null);
while  (c.moveToNext()) {
   String row = c.getString(1);
   //upload the recent 1 week sms messages to the server's database
}

我只想运行此代码一次，所以就在第一次打开它时运行。

原文

I want to run some code on the first startup of my application, it is to sync the past week's SMS messages to my web application. I'm unsure of how to filter out anything over a week, but this is my code to get all sms messages:

Uri allMessage = Uri.parse("content://sms/");
ContentResolver cr = getContentResolver();
Cursor c = cr.query(allMessage, null, null, null, null);
while  (c.moveToNext()) {
   String row = c.getString(1);
   //upload the recent 1 week sms messages to the server's database
}

I want to run this code only once, so right when it is opened for the first time.

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虚拟世界 2024-12-04 06:59:46

使用SharedPreferences。例如：

   SharedPreferences settings = getSharedPreferences("MyPrefs", 0);
   boolean firstTime = settings.getBoolean("FirstTime", true);
   if (firstTime) {
       // execute your one time code...
       // change the value in the shared preferences:
       SharedPreferences.Editor editor = settings.edit();
       editor.putBoolean("FirstTime", false);
       editor.commit();
   }

Use SharedPreferences. For example:

   SharedPreferences settings = getSharedPreferences("MyPrefs", 0);
   boolean firstTime = settings.getBoolean("FirstTime", true);
   if (firstTime) {
       // execute your one time code...
       // change the value in the shared preferences:
       SharedPreferences.Editor editor = settings.edit();
       editor.putBoolean("FirstTime", false);
       editor.commit();
   }

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