The app, you want to add an Activity, but the way?
If you add a Android Project in Eclipse, java file of Activity that comes up first is not it is generated.
Depending on the Android app you want to develop, there will be if you want to have more than one Activity.
I think in many books and site, has an article on adding the Activity, but also any article, and, confusing the first step in really additional good enough.
People good cans, but I'll see with it.
This kind of procedure, or would not be where it is compared to the way of processing in the program, I want you to tell proceeds gait, if possible?
I think at it, I try to introduce a take-home gait as much as possible, the procedure of adding Activity using Eclipse.
I want to add java file 1.Activity of the (Class).
From Package Explorer, the Android Project you want to add the Activity, at the package you created in src-> first, right-click.
Then, when you select a New-> Class, New Java Class window opens.
I enter the class name of your choice in the "Name". (Red frame portion of the image)
This is the java file name.
Since there is a button "Browse" to the far right of a place called "Super Class", I press. (Part of the frame of the image brown)
Then, Supperclass Selection screen opens.
Since I think the red frame portion of the image, first and are displayed as "java.lang.Object" perhaps, clear.
I choose it if there is a "Activity" from the list below.
It is an inherited class as mere Activity (example, but you need to inherit the MapActivity and ListActivity. Please select the class that you, as the case may be inherited.
Since you can still change the class that inherits from the code later of course, it's okay to accidentally here. )
If it is missing, it like the image below in the text box, and if we enter A cti ···, the list will gradually squeezed together in the character, it is useful to Once you have become accustomed.
Then, press OK, and press the Finish button when you go back.
This, java file is generated completion.
Describe the declaration of the Activity that you have added to 2.Manifest.xml.
Add the java file, simply implemented, Activity does not work.
The Manifest file, you need to add the declaration of the Activity.
The contents of the XML, it is a form such as the following. (If you want to add a Activity called xxxActivity.java)
<Activity android: name = "xxxActivity"> </ activity>
Now, we will explain how to set up in Eclipse.
First, as shown in the following image, I will open it in the Android Manifest Editor the AndroidManifest.xml. (Because it is usually associated with, OK. Double-click)
And, I will open the Application tab. It is a screen similar to the following.
Because there (image red frame portion above) screen bottom left corner, it called "Application Nodes", I press the Add button here. After this, the screen like the following will open.
※ When I If you are adding the Activity already, so there can be radio buttons as follows, please select the option of first one at that time.
Because there in the list box below, the concept of 'Activity ", I will double-click on it. and (can be OK to select)
Then, I think like a red frame portion of the image below, the Application Nodes, an element called "Activity" has been added.
While selecting this, I see the place on the right side of the screen called "Attributes for Activity".
I think that it has become like the image below.
So is there for the "Name" and press the Browse button on the right side, a screen similar to the following opens.
To image red frame portion of the window that opens, there is a text box.
Here, I'll do I devoted the class name you just added.
It is OK even Play Select from the list below.
At, you are finished, press OK, and if you save the Manifest.xml.
Now, you are finished for additional of Activity.
In this article, I will end with a description of the procedure up to this point.
After that, you will carry by adding a definition of the layout, that, to advance the implementation of the Activity class.