动态获取活动名称-android

我想得到当前 Activity的名称沿着 HttpRequest的 URI 发送。有没有一种方法可以做到这一点，而不具体提到 Activity？

我知道我可以做 myActivity.class.toString()，但这只是一个硬编码“ myActivity”的效率较低的方法，因为我正在对我的 Activity进行静态引用。有没有一种更通用的方法来实现这一点，比如使用“ this”(顺便说一下，它在这里实际上不起作用，因为它返回的信息超出了预期)。

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最佳答案

Use this.getClass().getSimpleName() to get the name of the Activity.

From the comments, if you're in the context of an OnClickListener (or other inner class), specify the class manually:

MainActivity.class.getSimpleName()

小开

For purists out there who may not want to use reflection, an alternative way is to use the PackageManager as follows:

PackageManager packageManager = activity.getPackageManager();
try {
ActivityInfo info = packageManager.getActivityInfo(activity.getComponentName(), 0);
Log.e("app", "Activity name:" + info.name);
} catch (NameNotFoundException e) {
e.printStackTrace();
}

However this seems like a lot of work just to do the same as getClass().getName() (and not even getSimpleName()). But I guess it may be useful for someone who wants more information about the activity than just the class name.

小开 
ActivityManager am = (ActivityManager)context.getSystemService(ACTIVITY_SERVICE);
List< ActivityManager.RunningTaskInfo > taskInfo = am.getRunningTasks(1);
this.currentActivity = taskInfo.get(0).topActivity.getClassName();
Log.i( "CURRENT Activity ",  currentActivity);
小开

First: open your manifest.xml file

you will find your package name i.e. "com.company.projectname"

Then: lets say your activity name is MainActivity

MainActivity.class.getCanonicalName() >output> "com.company.projectname.MainActivity"

OR

MainActivity.class.getSimpleName() >output> "MainActivity"

OR

MainActivity.class.getName() >output> "com.company.projectname.MainActivity"
小开

For Xamarin

string GetActivityClassName(Activity activity) //Receiving LoginActivity
{
//ComponentName
activity.ComponentName; //Output: "md5101a0260d0a0e5d40a0a9009be09b0c2.LoginActivity"


//LocalClassName
activity.LocalClassName; //Output: "md5101a0260d0a0e5d40a0a9009be09b0c2.LoginActivity"


//Java.Lang.Class.FromType.SimpleName
Java.Lang.Class.FromType(activity.GetType()).SimpleName; //Output "LoginActivity"


//Type.Name
activity.GetType().Name; //Output "LoginActivity"
}

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