Use this toolbar you can look and feel your design instantly with the following actions.

There is also a toolbar in the android layout XML file designer.

Under the Palette is Component Tree, which lists all this app’s UI components in a tree, you can easily adjust the UI components’ order and relationship in it.

In the XML designer Palette area, all android UI components are classified by type, click each type will list the components under it.

You can also click the Text tab at the bottom to see the layout XML code.

Click the Design tab under it, you can drag and drop a lot of android UI components into it visually.

The template content is too simple, there is only one TextView component in it.

Now open the content_main.xml file under the app/res/layout folder, this file is the place where you design your app UI.

You can read How To Avoid Snackbar Overlap Floating Action Button In Android for a detailed introduction. This button is introduced in android material design.

At the layout XML file bottom is a floating action button.This XML file is also saved in the app/res/layout folder. This tag will include the activity content layout XML file which is named content_main.xml. Please refer article Android AppBarLayout And Toolbar Example. AppBarLayout is used to wrap Toolbar to avoid Toolbar is overlapped by other view components when screen scroll.

At the top of the layout XML file is a Toolbar wrapped by AppBarLayout.

You can see that it has already contained some android components definition XML.

Double click the app/res/layout/activity_main.xml file to open it.

You can find the XML file under the app/res/layout folder.

The above code means this activity will use the layout XML file which name is activity_main.

Please note the below java code in the onCreate method.

Double click the MainActivity Java class under the app/java folder to open it.

From the above introduction, we can see that the android basic activity template creates a lot of template files, now we will introduce the most important files below.Basic Activity Template Files Introduction. Then you can see the basic activity template wizard created files and folders listed in the left android Project panel. Just click the Next button in all after wizards and use all default values until complete.During the project creation process, in the Add an Activity to Mobile wizard select the Basic Activity template.You can read the article How To Create New Android Studio Project to learn how to do it if you do not know. First, you should create an android project.Create Basic Activity In Android Project.

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