我如何开始一个新的Andr​​oid活动使用字符串？ [英] How can I start a new android activity using a string?

问题描述

我在与我的工作在Android应用程序的问题。

I'm having a problem with an android application that I'm working on.

我的应用程序有几个部分，并在下一个屏幕上，加载基于字符串。因此，第1条屏1人，S1S1。

My application has several sections and the next screen that loads is based on a string. So, screen 1 of section 1 would be, S1S1.

我的问题是，我该如何开始基于字符串的活动。我有S1S1保存在一个字符串，可以把它叫做nextactivity。而不是不必键入S1S1.class，我需要它来从字符串。我triend尽我所能的事情和谷歌并没有真正帮助。

My question is, how can I start an activity based on a string. I have S1S1 saved in a string, lets call it nextactivity. Rather than having to type S1S1.class, I need it to come from the string. I've triend everything I can thing of and google hasn't really helped.

有些事情我已经试过是

Intent myIntent = new Intent(nextactivity);
Intent myIntent = new Intent(v.getContext(), getClass().getName().valueOf(nextactivity));
Intent myIntent = new Intent(v.getContext(), Class.forName(nextactivity));

和试图与运行

startActivityForResult(myIntent, 0); 

但似乎没有任何工作。任何想法？

but nothing seems to work. Any ideas?

推荐答案

下面是一个code。通过它，你可以用活动的名字开始活动

Here is a code by which you can start activity using the name of the activity

Class<?> c = null;
if(StringClassname != null) {
    try {
        c = Class.forName(StringClassname );
    } catch (ClassNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}
Intent intent = new Intent(mail.this, c);
startActivity(intent);

修改

下面的类名称将是类的包名的全名。 例如，如果你的包的名字将是 XYZ ，如果你有一个名为活动名称 A 活动中的全名 A 将 XYZA 。

Here class name will be full name of the class with the package name. For example if your package name will be x.y.z and if you have Activity name called A then the full name of the Activity A will be x.y.z.A.

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