Manifest.xml file

Links on Android Authority may earn us a commission. Learn more. Read More: Getting to know Android Studio and the files that make up your apps. If you create an Android project using Android Studio, then a single Manifest file is generated for you automatically, and then populated with all the elements required for this project to run on an Android device.

Most Manifest entries consist of an element and an attribute. For example, in the above Manifest, the R class will be created at com.

The build tools will also use this package name to resolve any classes that you declared in the Manifest file. Initially, the application ID will match the package name you selected when you created your project, but you can change the application ID and package name manually, at any time. If you do edit the package name, then the value defined in your Manifest must match the package name defined in your project directory.

If your app contains components that reside in other sub-packages, then you must use the fully qualified package name. You can start a service and leave it running in the background, or you can bind a service to another component, which allows that component to interact with the service.

Users can check which services are running on their device and can stop any service, at any time, so by providing a compelling description you can reduce the chances of the user deciding to stop your service. By implementing one or more BroadcastReceivers, your app can respond to events that are happening outside of the application context.

For example, imagine your app occasionally needs to perform a battery-intensive task; you can provide a better user experience by delaying this task until the device is charging. You can then use one or more intent filters to specify which broadcast actions the receiver should respond to.

A content provider is a consistent, standard interface that connects data in one process with code running in another process. The limitation is imposed to protect critical data and code that could be misused to distort or damage the user experience.

Each permission is identified by a unique label. Often the label indicates the action that's restricted. For example, here are some permissions defined by Android:. Then, when the application is installed on the device, the installer determines whether or not to grant the requested permission by checking the authorities that signed the application's certificates and, in some cases, asking the user. If the permission is granted, the application is able to use the protected features.

If not, its attempts to access those features will simply fail without any notification to the user. An application can also protect its own components activities, services, broadcast receivers, and content providers with permissions. It can employ any of the permissions defined by Android listed in android. Or it can define its own. For example, an activity could be protected as follows:.

Its use must be requested in order for other components of the application to launch the protected activity, even though the protection is imposed by the application itself. If, in the same example, the permission attribute was set to a permission declared elsewhere such as android. It affects only how the permissions are grouped when presented to the user. Every application is linked against the default Android library, which includes the basic packages for building applications with common classes such as Activity, Service, Intent, View, Button, Application, ContentProvider, and so on.

However, some packages reside in their own libraries. If your application uses code from any of these packages, it must explicitly asked to be linked against them. The library name can be found in the documentation for the package. About Android Legal Support. Quicknav Quicknav. Results Loading Content Providers. Android Manifest. User Interface. Input Controls. JavaTpoint offers too many high quality services.

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