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This article mainly introduces "Android ApiDemo sample analysis". In daily operation, I believe many people have doubts about Android ApiDemo sample analysis. Xiaobian consulted all kinds of materials and sorted out simple and easy operation methods. I hope to help you answer the doubts of "Android ApiDemo sample analysis"! Next, please follow the small series to learn together!

Android apps can contain multiple activities, and one Activity can launch another Activity. These activities are managed using a stack structure, with newly opened activities stacked on top of the current Activity, which stops running. When an Activity stops running, the Android system retains its state before it stops. When the user presses the "Back" button, the Activity at the top of the stack pops from the stack, and the previous Activity moves to the top of the stack and displays on the screen:

Sometimes, when an Activity starts a new Activity, you don't want to keep the current Activity in the Activity stack. For example, when using an Activity to implement a Confirm Dialog, when the user confirms to start the new Activity, you don't want to display the Confirm Dialog when pressing "Back" when the new Activity is displayed.

Example Fowarding uses Finish() to start a new Activity and end the current Activity.

Intent intent = new Intent(); intent.setClass(Forwarding.this, ForwardTarget.class); startActivity(intent); finish();

Finish Forwarding Activity and press "Back" to go directly to ApiDemo->Activity sample list instead of Forwarding.

At this point, the study of "Android ApiDemo Sample Analysis" is over, hoping to solve everyone's doubts. Theory and practice can better match to help everyone learn, go and try it! If you want to continue learning more relevant knowledge, please continue to pay attention to the website, Xiaobian will continue to strive to bring more practical articles for everyone!

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