Activity to Fragment Android
As a user navigates through out of and back to your app the Activity instances in your app transition through different states in their lifecycle. With the release of Android 50 Lollipop the new material. Android Fragment Life Cycle Fragments Android Life Cycles For accessing a function declared in your Activity via your fragment please use an interface as shown in the answer by marco. . Activity Result APIComponentActivity 现在提供了一个 ActivityResultRegistry让您无需替换 Activity 或 Fragment 中的方法即可处理 startActivityForResultonActivityResult 以及 requestPermissionsonRequestPermissionsResult 流程通过 ActivityResultContract 提高了类型安全性并提供了用于. For accessing a function declared in your Fragment via your activity you can use this if you dont have a tag or an id. Also you should never call new on an Activity as that is not the proper way to start one. Parent activity meta-data to support API level 4 -- androidnameandroidsupportPARENT_ACTIVITY androidva...
