Android-activity call another activity method

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Start another activity | Android Developers2021年12月21日 · Respond to the Send button · In the file app > java > com.example.myfirstapp > MainActivity, add the following sendMessage() method stub: · Return ...Respond to the Send button · Build an intent · Create the second activityActivity | Android DevelopersThe startActivity(Intent) method is used to start a new activity, which will be placed at the top of the activity stack. It takes a single argument, an Intent , ...Activity Lifecycle · Starting Activities and Getting... · Summary · Public methodsGetting a result from an activity | Android Developers2021年10月27日 · You can also start another activity and receive a result back. ... a single method interface with an onActivityResult() method that takes an ...Intents and Intent Filters | Android DevelopersYou can start a new instance of an Activity by passing an Intent to ... the matching activity (Activity B) by invoking its onCreate() method and passing it ...The Activity Lifecycle | Android Developers2021年10月27日 · For example, good implementation of the lifecycle callbacks can help ensure that your app avoids: Crashing if the user receives a phone call or ...Allowing Other Apps to Start Your Activity | Android Developers2021年10月27日 · Note: In order to receive implicit intents, you must include the CATEGORY_DEFAULT category in the intent filter. The methods startActivity() and ...Introduction to Activities | Android Developers2021年10月27日 · The Activity class is designed to facilitate this paradigm. When one app invokes another, the calling app invokes an activity in the other app, ...Start an activity using an animation | Android Developers2021年10月27日 · For example, if two activities have the same image in different positions and sizes, the changeImageTransform shared element transition ...Sending the user to another app | Android Developers2021年10月27日 · Learn how to create an implicit intent for a particular action, and how to use it to start an activity that performs the action in another ... | Android Developers2021年10月4日 · This attribute is meaningful only for activities that start a new task (the root activity); it's ignored for all other activities in the ...