你知道这个

嗯，我想创造一些这样的画面。当我打开的第一次，我想在应用程序中打开此屏幕显示上下文。怎么可能？我不知道这种类型的事情有什么搜索。

  @覆盖
公共无效的onCreate（包savedInstanceState）{
    super.onCreate（savedInstanceState）;
    ...
    如果（isFirstTime（））{
        //你做什么时，打开应用程序第一次到这里
    }
    ...
}


/ ***
 *检查该应用程序运行的第一次，并在共享preferences写标志
 * @返回true，如果第1次
 * /
私人布尔isFirstTime（）
{
    共享preferences preferences = GET preferences（MODE_PRIVATE）;
    布尔ranBefore = preferences.getBoolean（RanBefore，假）;
    如果（！ranBefore）{
        // 第一次
        共享preferences.Editor编辑器= preferences.edit（）;
        editor.putBoolean（RanBefore，真正的）;
        editor.commit（）;
    }
    返回ranBefore！;
}
 

Do you know this

Well i want create something like this screen. When i open for the first time the application i want open this screen and display a context.. How is possible? I don't know what search for this type of thing..

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ...
    if (isFirstTime()) {
        // What you do when the Application is Opened First time Goes here
    }
    ...
}


/***
 * Checks that application runs first time and write flag at SharedPreferences 
 * @return true if 1st time
 */
private boolean isFirstTime()
{
    SharedPreferences preferences = getPreferences(MODE_PRIVATE);
    boolean ranBefore = preferences.getBoolean("RanBefore", false);
    if (!ranBefore) {
        // first time
        SharedPreferences.Editor editor = preferences.edit();
        editor.putBoolean("RanBefore", true);
        editor.commit();
    }
    return !ranBefore;
}