English 中文(简体)
Overriding the Activity/Task behavior in Android
原标题:

I m writing a simple Android app, and I d like better control over the navigation/relationship between the activities. I don t want my activities to act like android activities...I don t want them to stack up within the Task. I want one Activity (let s call it MainActivity) to be the landing point and always be at the bottom of the stack, and I want only one instance of my second activity (call it SecondActivity) to be above it in the stack...would be nice to reuse it as well. I thought I could get this behavior by making MainActivity be the "main" Activity, and declare them both as launchMode=singleTop. This isn t working at all. I provide navigation between them using menus, so when I go back and forth a bunch of times and back out of the app, I go through the whole stack.

How s the best way to have fine control over the Task s Activity stack? I want MainActivity to always back out of the app, and SecondActivity to always back into a single instance of MainActivity. As well, I d love to get singleTop working so I would use onNewIntent instead of creating and destroying every time. Using the manifest as well as the intent flag is just not working. Any ideas?

最佳回答

Well, you could always just call "finish()" within whatever Activity is calling another activity after the "startActivity()" call. I would definitely advise against trying to stuff an entire app into two activity classes and try to swap views based on what they re doing. If it s that important to you, just close your activities as you launch new ones (obviously not the MainActivity, though).

问题回答

暂无回答




相关问题
Android - ListView fling gesture triggers context menu

I m relatively new to Android development. I m developing an app with a ListView. I ve followed the info in #1338475 and have my app recognizing the fling gesture, but after the gesture is complete, ...

AsyncTask and error handling on Android

I m converting my code from using Handler to AsyncTask. The latter is great at what it does - asynchronous updates and handling of results in the main UI thread. What s unclear to me is how to handle ...

Android intent filter for a particular file extension?

I want to be able to download a file with a particular extension from the net, and have it passed to my application to deal with it, but I haven t been able to figure out the intent filter. The ...

Android & Web: What is the equivalent style for the web?

I am quite impressed by the workflow I follow when developing Android applications: Define a layout in an xml file and then write all the code in a code-behind style. Is there an equivalent style for ...

TiledLayer equivalent in Android [duplicate]

To draw landscapes, backgrounds with patterns etc, we used TiledLayer in J2ME. Is there an android counterpart for that. Does android provide an option to set such tiled patterns in the layout XML?

Using Repo with Msysgit

When following the Android Open Source Project instructions on installing repo for use with Git, after running the repo init command, I run into this error: /c/Users/Andrew Rabon/bin/repo: line ...

Android "single top" launch mode and onNewIntent method

I read in the Android documentation that by setting my Activity s launchMode property to singleTop OR by adding the FLAG_ACTIVITY_SINGLE_TOP flag to my Intent, that calling startActivity(intent) would ...

From Web Development to Android Development

I have pretty good skills in PHP , Mysql and Javascript for a junior developer. If I wanted to try my hand as Android Development do you think I might find it tough ? Also what new languages would I ...

热门标签