The affinity indicates which task an activity prefers to belong to. By default, all the activities from the same app have an affinity for each other. So, by default, all activities in the same app prefer to be in the same task.
What is finish affinity in Android?
finishAffinity(): finish the current activity and all activities immediately below it in the current task that have the same affinity. finishAndRemoveTask(): call this when your activity is done and should be closed and the task should be completely removed as a part of finishing the root activity of the task.
What are intent flags in Android?
Use Intent Flags
Intents are used to launch activities on Android. You can set flags that control the task that will contain the activity. Flags exist to create a new activity, use an existing activity, or bring an existing instance of an activity to the front.
How do I use onNewIntent on Android?
How to use onNewIntent method in android. app. Activity
- WeakReference mActivity;mActivity.get()
- Stack activityStack;activityStack.lastElement()
- (Activity) param.thisObject.
What is Android default activity?
In Android, you can configure the starting activity (default activity) of your application via following “intent-filter” in “AndroidManifest. xml“. See following code snippet to configure a activity class “logoActivity” as the default activity.
What does finish affinity do?
In general, the affinity indicates in which task an activity prefers or belongs to. Once you understand how the stack works, the meaning of finishAffinity() and finishAndRemoveTask() is pretty simple. Finish this activity as well as all activities immediately below it in the current task that have the same affinity.
What is setContentView?
SetContentView is used to fill the window with the UI provided from layout file incase of setContentView(R. layout. somae_file). Here layoutfile is inflated to view and added to the Activity context(Window).
What is the purpose of intent in android?
An intent is to perform an action on the screen. It is mostly used to start activity, send broadcast receiver,start services and send message between two activities. There are two intents available in android as Implicit Intents and Explicit Intents. Here is a sample example to start new activity with old activity.
What is singleTop in android?
singleTop
Using this launch mode you can create multiple instance of the same activity in the same task or in different tasks only if the same instance does not already exist at the top of stack. <activity android_launchMode=”singleTop” />
What is onCreate method in Android?
onCreate is used to start an activity. super is used to call the parent class constructor. setContentView is used to set the xml.
What is the life cycle of services in Android?
Android service is a component that is used to perform operations on the background such as playing music, handle network transactions, interacting content providers etc. It doesn’t has any UI (user interface). The service runs in the background indefinitely even if application is destroyed.
What is activity in Android with example?
You implement an activity as a subclass of the Activity class. An activity provides the window in which the app draws its UI. … Generally, one activity implements one screen in an app. For instance, one of an app’s activities may implement a Preferences screen, while another activity implements a Select Photo screen.