Android:安装一天后如何显示按钮？

Question

我的主要 Activity 中有一个按钮。默认情况下它是不可见的，但我想让它在安装我的应用程序后一天(或第一次运行我的应用程序后一天)可见。所以当用户安装我的应用程序时，他看不到我的按钮。但是安装后的一天，他可以看到我的按钮。我该怎么做？

Answer 1

这里是解决方案...首先获取安装日期，然后将该日期与当前日期进行比较。如果超过 1 天，您可以显示您的按钮。

这是代码...

// ****************** To know installation date of application for button show **************//
    try {
        appInstalledDate = Splash.this.getPackageManager().getPackageInfo("your package name", 0).firstInstallTime;
         SimpleDateFormat sdf = new SimpleDateFormat("dd MMM,yyyy HH:mm");
            Date resultdate = new Date(appInstalledDate);
        Log.v("Installation date of app is ",","+resultdate);
    } catch (Exception e) {
        e.printStackTrace();
    }

在这里你可以显示你的按钮

try {
                SimpleDateFormat sdf = new SimpleDateFormat("MMM dd,yyyy HH:mm");

                Date resultdate = new Date(Long.parseLong(prefs.getString("email_prompt", "")));
                                    Log.v("current date ",","+sdf.format(new Date().getTime()));
                long diff = new Date().getTime() - resultdate
                long diffMinutes = (diff / 1000) / 60;
                long diffMinutes = (TimeUnit.MILLISECONDS.toMinutes(diff));
                Log.v("Difference in minutes is ",","+diffMinutes);

                if(1440 < diffMinutes)
                {
                 yourButton.show(); // show your button

                }
            } catch (Exception e) {
                e.printStackTrace();

            }