Note:this element Neither have attached source nor attached Javadoc and hence no Javadoc could be found.

When you develop an Android project in Eclipse, the mouse is parked on the class where you want to view the Help document, and you see that the Help document is not displayed, showing the following sentence:

Note:this element Neither have attached source nor attached Javadoc and hence no Javadoc could be found.

This is because the Javadoc location property of the Android.jar file is not set, follow the steps below:

(1) Right-click the project name and select Properties-->java Build Path;

(2) Find the Android.jar file, and expand, you can see Javadoc location is not set;

(3) Select Javadoc location, click on the right of the Edit button, select the Javadoc path and determine, Javadoc path is generally/sdk/docs/reference/(such as my machine is file:/e:/hzhi/ adt-bundle-windows-x86_64-20140702/sdk/docs/reference/);

(4) You can see that setting Javadoc location is successful and OK again.

Now, hover over the class where you want to see the help document, and you'll see the Help document displayed.

If your/sdk/docs/is blank and there is nothing left, you can run the SDK Manager and tick the download in front of the documention for Android SDK.

Note:this element Neither have attached source nor attached Javadoc and hence no Javadoc could be found.