显示设置屏幕仅在Android的首次发射 [英] Showing the setup screen only on first launch in android

问题描述

我想提出一个Android应用程序，但我无法弄清楚如何我可以设置屏幕显示仅在第一次。 这是应用程序将如何工作的： 用户在安装后启动应用程序并正在显示欢迎/设置屏幕。一旦用户与安装完成后，设置屏幕将不会再次出现，除非用户安装该应用程序。

I am making an android application but i can't figure out how i can make the setup screen show up only the first time. This is how the application is going to work: User launches the application after installation and is being shown the welcome/setup screen. And once the user is done with the setup, the setup screens will never appear again unless the user reinstalls the application.

我怎样才能做到这一点？？？ 请帮助和感谢这么多提前！

How can i make this happen??? Please help and thanks SO much in advance!

推荐答案

使用共享preferences 来检验其是否首次启动与否。

Use SharedPreferences to test whether its the first start or not.

注：以下code未测试

Note: The below code was not tested.

在您的onCreate（或徘徊无论你想要做取决于第一次启动或没有的东西），添加

In your onCreate (or whereever you want to do things depending on first start or not), add

// here goes standard code 

SharedPreferences pref = getSharedPreferences("mypref", MODE_PRIVATE);

if(pref.getBoolean("firststart", true)){
   // update sharedpreference - another start wont be the first
   SharedPreferences.Editor editor = pref.edit();
   editor.putBoolean("firststart", false);
   editor.commit(); // apply changes

   // first start, show your dialog | first-run code goes here
}

// here goes standard code

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