Android Manifest XML file

Android Manifest XML file

XML

• Used to define some of the resources

1. Layouts (UI)
2. Strings
3. Manifest file

• Shouldn’t usually have to edit it directly,Eclipse can do that for you
• Preferred way of creating UIs

1. Separates the description of the layout from any actual code that controls it
2. Can easily take a UI from one platform to another

R Class

• Auto-generated: you shouldn’t edit it
• Contains IDs of the project resources
• Enforces good software engineering
• Use findViewById and Resources object to get access to the resources

1. Ex. Button b = (Button)findViewById(R.id.button1)
2. Ex. getResources().getString(R.string.hello));

Layouts 

• Eclipse has a great UI creator
• Generates the XML for you
• Composed of View objects
• Can be specified for portrait and landscape mode